{"version":1,"resultDescription":{"count":10,"showResultCount":false,"emptyResultLabel":"No freelancers matching your search criteria were found","notEmptyResultLabel":"10 results found"},"results":[{"isHero":false,"profileUrl":"https://www.workana.com/freelancer/a47899bad3b852d35ff4ca118b9b2d45","profileLogoUrl":"https://cf.workana.com/logos/8a485fe0e852794b06e07e8b62a6dd2d/px/75226294_160_160.jpeg","profileName":"Branco B.","hash":"a47899bad3b852d35ff4ca118b9b2d45","roleName":"Software Engineer & Full Stack Developer","tagline":null,"isVerifiedAgency":false,"rating":4.4800000000000004,"ratingLabel":"4.48 of 5.00","completedProjects":24,"badges":[{"title":"Explorer Membership","size":"small","position":"","profile":"worker","type":"membership_premium"},{"title":"Freelancer gold","size":"small","position":"gold","profile":"","type":"gold"}],"country":{"name":"Argentina","img":"

","searchLinkUrl":"https://www.workana.com/jobs?country=AR"},"completedProjectsForView":"24","dangerouslyWillBeRenderAsHtml_description":"Ingeniero de Software Senior | Experto en Full Stack, IA y Automatización
Soy el desarrollador al que llamas cuando necesitas resultados sólidos, no excusas. Me especializo en tomar problemas complejos de negocio y convertirlos en software automatizado, escalable y rentable.
Qué traigo a la mesa?
Dominio Total del Stack: Me muevo con fluidez entre Backend (Python/Node/PHP/Go) y Frontend modernos. Si se puede programar, lo puedo construir.
Automatización & IA: No solo integro APIs; construyo sistemas autónomos (Agentes IA, Generación de Contenido, Bots de Trading) que trabajan 24/7 por ti.
Mentalidad de Negocio: No escribo código por escribir. Desarrollo herramientas para reducir tus costos operativos o aumentar tu facturación.
Mi garantía: Código limpio, comunicación directa y entrega en los plazos acordados. Si tienes un desafío técnico difícil o una idea ambiciosa, soy el socio tecnológico que necesitas para ejecutarla.","canInvite":false,"shouldShowHireMeDialog":false,"sameAsLoggedInCompany":false,"position":"gold","hourlyRate":"USD 25.00","hourlyWorkedProjects":0,"lastActiveLoginRelativeToUser":"May 14, 2026 16:55","lastActiveLoginRelative":"15 hours ago","registeredSinceRelativeToUser":"April 03, 2025 22:58","registeredSinceRelative":"Last year","recentBreaches":{"value":0,"label":"0 recent violations"},"workerSkills":[{"anchorText":"Python (5 to 10 years)","anchorLink":"https://www.workana.com/hire/python","isCertified":false,"title":"Python - Freelancers"},{"anchorText":"MySQL (5 to 10 years)","anchorLink":"https://www.workana.com/hire/mysql","isCertified":false,"title":"MySQL - Freelancers"},{"anchorText":"JavaScript (5 to 10 years)","anchorLink":"https://www.workana.com/hire/javascript","isCertified":false,"title":"JavaScript - Freelancers"},{"anchorText":"PHP (5 to 10 years)","anchorLink":"https://www.workana.com/hire/php","isCertified":false,"title":"PHP - Freelancers"},{"anchorText":"Laravel (3 to 5 years)","anchorLink":"https://www.workana.com/hire/laravel","isCertified":false,"title":"Laravel - Freelancers"},{"anchorText":"Node.js (5 to 10 years)","anchorLink":"https://www.workana.com/hire/node-js","isCertified":false,"title":"Node.js - Freelancers"},{"anchorText":"Flask (3 to 5 years)","anchorLink":"https://www.workana.com/hire/flask","isCertified":false,"title":"Flask - Freelancers"},{"anchorText":"API (5 to 10 years)","anchorLink":"https://www.workana.com/hire/api","isCertified":false,"title":"API - Freelancers"},{"anchorText":"SQL (5 to 10 years)","anchorLink":"https://www.workana.com/hire/sql","isCertified":false,"title":"SQL - Freelancers"},{"anchorText":"Artificial intelligence (+10 years)","anchorLink":"https://www.workana.com/hire/artificial-intelligence","isCertified":false,"title":"Artificial intelligence - Freelancers"},{"anchorText":"Web Scraping (5 to 10 years)","anchorLink":"https://www.workana.com/hire/web-scraping","isCertified":false,"title":"Web Scraping - Freelancers"},{"anchorText":"Responsive Web Design (3 to 5 years)","anchorLink":"https://www.workana.com/hire/responsive-web-design","isCertified":false,"title":"Responsive Web Design - Freelancers"},{"anchorText":"Docker (5 to 10 years)","anchorLink":"https://www.workana.com/hire/docker","isCertified":false,"title":"Docker - Freelancers"},{"anchorText":"HTML (5 to 10 years)","anchorLink":"https://www.workana.com/hire/html","isCertified":false,"title":"HTML - Freelancers"},{"anchorText":"CSS (5 to 10 years)","anchorLink":"https://www.workana.com/hire/css","isCertified":false,"title":"CSS - Freelancers"},{"anchorText":"Qa Automation (+10 years)","anchorLink":"https://www.workana.com/hire/qa-automation","isCertified":false,"title":"Qa Automation - Freelancers"},{"anchorText":"AngularJS (5 to 10 years)","anchorLink":"https://www.workana.com/hire/angularjs","isCertified":false,"title":"AngularJS - Freelancers"},{"anchorText":"React.js (5 to 10 years)","anchorLink":"https://www.workana.com/hire/react-js","isCertified":false,"title":"React.js - Freelancers"},{"anchorText":"React Native (+10 years)","anchorLink":"https://www.workana.com/hire/react-native","isCertified":false,"title":"React Native - Freelancers"},{"anchorText":"React Query (+10 years)","anchorLink":"https://www.workana.com/hire/react-query","isCertified":false,"title":"React Query - Freelancers"},{"anchorText":"C# (+10 years)","anchorLink":"https://www.workana.com/hire/c-1","isCertified":false,"title":"C# - Freelancers"},{"anchorText":"C++ (+10 years)","anchorLink":"https://www.workana.com/hire/c-2","isCertified":false,"title":"C++ - Freelancers"},{"anchorText":"Java (+10 years)","anchorLink":"https://www.workana.com/hire/java","isCertified":false,"title":"Java - Freelancers"},{"anchorText":"Django (+10 years)","anchorLink":"https://www.workana.com/hire/django","isCertified":false,"title":"Django - Freelancers"},{"anchorText":"Selenium (+10 years)","anchorLink":"https://www.workana.com/hire/selenium","isCertified":false,"title":"Selenium - Freelancers"},{"anchorText":"Data Engineer (Python) (+10 years)","anchorLink":"https://www.workana.com/hire/data-engineer-python","isCertified":false,"title":"Data Engineer (Python) - Freelancers"},{"anchorText":"Data Engineer (Java) (+10 years)","anchorLink":"https://www.workana.com/hire/data-engineer-java","isCertified":false,"title":"Data Engineer (Java) - Freelancers"},{"anchorText":"Web Development (+10 years)","anchorLink":"https://www.workana.com/hire/web-development-1","isCertified":false,"title":"Web Development - Freelancers"},{"anchorText":"Amazon Web Services (AWS) (+10 years)","anchorLink":"https://www.workana.com/hire/amazon-web-services","isCertified":false,"title":"Amazon Web Services (AWS) - Freelancers"}]},{"isHero":false,"profileUrl":"https://www.workana.com/freelancer/2a26153265c03a0a3d7ce091482a32b2","profileLogoUrl":"https://cf.workana.com/logos/8a36e2e2d12fa34667f0e51f5119bf81/rh/WhatsAppImage20240610at162421_160_160.jpeg","profileName":"Leonardo R.","hash":"2a26153265c03a0a3d7ce091482a32b2","roleName":"Big Data","tagline":"Java Developer","isVerifiedAgency":false,"rating":5,"ratingLabel":"5 of 5.00","completedProjects":3,"badges":[{"title":"Freelancer bronze","size":"small","position":"bronze","profile":"","type":"bronze"}],"country":{"name":"Argentina","img":"

","searchLinkUrl":"https://www.workana.com/jobs?country=AR"},"completedProjectsForView":"3","dangerouslyWillBeRenderAsHtml_description":"Especialista en desarrollo de chatbots con IA, integraciones, automatizaciones y atención multicanal al cliente.
Ayudo a negocios a transformarse y optimizarse mediante soluciones tecnológicas que impulsan la eficiencia y mejoran la experiencia del cliente.
✅ Automatiza tareas repetitivas para que tu equipo se enfoque en lo realmente importante.
✅ Chatbots inteligentes, integrados con tu CRM, tienda online o sistema interno, que resuelven consultas frecuentes de forma rápida y efectiva.
✅ Asesoría tecnológica personalizada para implementar o mejorar tu software según las necesidades de tu negocio.
Mi objetivo no es solo proporcionar servicios, sino convertirme en tu aliado tecnológico, creando experiencias positivas para tus clientes y procesos internos.
Más de 15 años de experiencia en desarrollo e integración de software en gran variedad de proyectos y clientes. Con facilidad para aprender nuevas tecnologías, proactivo, autodidacta y responsable.","canInvite":false,"shouldShowHireMeDialog":false,"sameAsLoggedInCompany":false,"position":"bronze","hourlyRate":"AR$ 20,000.00","hourlyWorkedProjects":0,"lastActiveLoginRelativeToUser":"November 24, 2025 16:48","lastActiveLoginRelative":"5 months ago","registeredSinceRelativeToUser":"March 12, 2017 23:40","registeredSinceRelative":"9 years ago","recentBreaches":{"value":0,"label":"0 recent violations"},"workerSkills":[{"anchorText":"Java (+10 years)","anchorLink":"https://www.workana.com/hire/java","isCertified":false,"title":"Java - Freelancers"},{"anchorText":"Big Data (5 to 10 years)","anchorLink":"https://www.workana.com/hire/big-data","isCertified":false,"title":"Big Data - Freelancers"},{"anchorText":"Chatbot (1 year)","anchorLink":"https://www.workana.com/hire/chatbot","isCertified":false,"title":"Chatbot - Freelancers"},{"anchorText":"Data Science (1 year)","anchorLink":"https://www.workana.com/hire/data-science","isCertified":false,"title":"Data Science - Freelancers"},{"anchorText":"Artificial intelligence (1 year)","anchorLink":"https://www.workana.com/hire/artificial-intelligence","isCertified":false,"title":"Artificial intelligence - Freelancers"},{"anchorText":"ChatGPT (1 year)","anchorLink":"https://www.workana.com/hire/chatgpt","isCertified":false,"title":"ChatGPT - Freelancers"},{"anchorText":"Data Engineer (Java) (5 to 10 years)","anchorLink":"https://www.workana.com/hire/data-engineer-java","isCertified":false,"title":"Data Engineer (Java) - Freelancers"},{"anchorText":"DevOps (3 to 5 years)","anchorLink":"https://www.workana.com/hire/devops","isCertified":false,"title":"DevOps - Freelancers"}]},{"isHero":false,"profileUrl":"https://www.workana.com/freelancer/646dee519a331b47643ee4d41e9b1943","profileLogoUrl":"https://cf.workana.com/logos/abf4055d2b78e2171a01b0f7d23b2c9a/vl/Capturadetela20240125144136_160_160.png","profileName":"Jonatha G. C.","hash":"646dee519a331b47643ee4d41e9b1943","roleName":"Full Stack Developer","tagline":"Jonatha Gome Chaves","isVerifiedAgency":false,"rating":5,"ratingLabel":"5 of 5.00","completedProjects":1,"badges":[{"title":"Freelancer bronze","size":"small","position":"bronze","profile":"","type":"bronze"}],"country":{"name":"Brazil","img":"

","searchLinkUrl":"https://www.workana.com/jobs?country=BR"},"completedProjectsForView":"1","dangerouslyWillBeRenderAsHtml_description":"17+ YEARS EXPERIENCE | 100% Job Success
I am a developer with experience in building APIs, Web and Mobile applications for small to large companies. Whether you're trying to create your startup, manage your business, or improve your business processes.
Technical Expertise:
✅ Proficient in Java, including Java 8, Java 11, Java 17
✅ Expertise in developing web applications in the Banking and Financial domain for over 12 years
✅ Expertise in developing web applications in the Logistics company and ERP domain for over 7 years
✅ Expertise in developing with JSF
✅ Strong knowledge of JavaScript, TypeScript, React and Node in many frameworks
✅ Backend development experience with Spring Boot, REST API development, application security, scalability, and proficiency in Spring Data JPA, Hibernate, Spring Cloud, and Spring Security
✅ Mastery of Microservice architecture and Micro Frontend architecture, including Journey-based frontend UI development
✅ Knowledge of application security best practices, including OAuth 2 implementation, JWT token-based authentication, and authorization
✅ Experience in Test-Driven Development (TDD) and unit testing using JUnit 5 and Mockito, as well as snapshot testing with Jest and Enzyme
✅ Experince with both relational and NoSQL databases, including MySQL, Oracle, PostgreSQL, MongoDB, and Amazon QLDB
✅ Hands-on experience with AWS, including designing and implementing highly scalable and secure infrastructure plans, application deployment, and CI/CD pipelines using AWS services like CodeCommit. Proficiency in migrating on-premises applications to the AWS cloud
✅ Expertise in DevOps practices, including CI/CD with Jenkins and GitHub Actions, containerization using Docker, terraform script development
✅ Experience in setting up monitoring and logging solutions like Prometheus, Grafana, ELK (Elasticsearch, Logstash, Kibana), or AWS CloudWatch to ensure the health and performance of applications
✅ Understanding of distributed system concepts, including message brokers like Apache Kafka or RabbitMQ, and the implementation of distributed transactions
✅ Expertise in optimizing application performance, including profiling, caching strategies, and database query optimization
✅ Proficiency in modern Software Development Life Cycle (SDLC) methodologies, including Agile (SCRUM), and tools such as Jira, Confluence, and SonarQube
✅ Mastery of Object-Oriented Programming (OOP) concepts, SOLID principles, and Data Structures & Algorithms
I have a proven track record of delivering exceptional results for my clients, including:
☑ Boosting client revenue by 30% through targeted web application improvements
☑ Increasing code quality by 80% using best practices and the Boy Scout Rule
☑ Mentoring junior developers to enhance their Java skills and problem-solving abilities
I am confident that my strong technical background and commitment to excellence will make me an asset to your team. If you would like to discuss how I can contribute to your next project, please don't hesitate to reach out.
Thank you for considering my application, and I look forward to speaking with you soon.
Best regards,
Jonatha.","canInvite":false,"shouldShowHireMeDialog":false,"sameAsLoggedInCompany":false,"position":"bronze","hourlyRate":"R$ 100.00","hourlyWorkedProjects":0,"lastActiveLoginRelativeToUser":"March 10, 2025 08:43","lastActiveLoginRelative":"Last year","registeredSinceRelativeToUser":"May 08, 2024 14:54","registeredSinceRelative":"2 years ago","recentBreaches":{"value":0,"label":"0 recent violations"},"workerSkills":[{"anchorText":"Java (+10 years)","anchorLink":"https://www.workana.com/hire/java","isCertified":false,"title":"Java - Freelancers"},{"anchorText":"Node.js (5 to 10 years)","anchorLink":"https://www.workana.com/hire/node-js","isCertified":false,"title":"Node.js - Freelancers"},{"anchorText":"Amazon Web Services (AWS) (5 to 10 years)","anchorLink":"https://www.workana.com/hire/amazon-web-services","isCertified":false,"title":"Amazon Web Services (AWS) - Freelancers"},{"anchorText":"React.js (3 to 5 years)","anchorLink":"https://www.workana.com/hire/react-js","isCertified":false,"title":"React.js - Freelancers"},{"anchorText":"React Native (1 to 3 years)","anchorLink":"https://www.workana.com/hire/react-native","isCertified":false,"title":"React Native - Freelancers"},{"anchorText":"Spring Boot (5 to 10 years)","anchorLink":"https://www.workana.com/hire/spring-boot","isCertified":false,"title":"Spring Boot - Freelancers"},{"anchorText":"PostgresSQL (+10 years)","anchorLink":"https://www.workana.com/hire/postgressql","isCertified":false,"title":"PostgresSQL - Freelancers"},{"anchorText":"MySQL (+10 years)","anchorLink":"https://www.workana.com/hire/mysql","isCertified":false,"title":"MySQL - Freelancers"},{"anchorText":"Oracle (+10 years)","anchorLink":"https://www.workana.com/hire/oracle","isCertified":false,"title":"Oracle - Freelancers"},{"anchorText":"REST API (+10 years)","anchorLink":"https://www.workana.com/hire/rest-api","isCertified":false,"title":"REST API - Freelancers"},{"anchorText":"Java Server Faces (JSF) (+10 years)","anchorLink":"https://www.workana.com/hire/java-server-faces-jsf","isCertified":false,"title":"Java Server Faces (JSF) - Freelancers"},{"anchorText":"Spring Security (5 to 10 years)","anchorLink":"https://www.workana.com/hire/spring-security","isCertified":false,"title":"Spring Security - Freelancers"},{"anchorText":"API (+10 years)","anchorLink":"https://www.workana.com/hire/api","isCertified":false,"title":"API - Freelancers"},{"anchorText":"Software Testing (+10 years)","anchorLink":"https://www.workana.com/hire/software-testing","isCertified":false,"title":"Software Testing - Freelancers"},{"anchorText":"PrimeFaces (+10 years)","anchorLink":"https://www.workana.com/hire/primefaces","isCertified":false,"title":"PrimeFaces - Freelancers"},{"anchorText":"Data Engineer (Java) (5 to 10 years)","anchorLink":"https://www.workana.com/hire/data-engineer-java","isCertified":false,"title":"Data Engineer (Java) - Freelancers"},{"anchorText":"Architecture (+10 years)","anchorLink":"https://www.workana.com/hire/architecture","isCertified":false,"title":"Architecture - Freelancers"},{"anchorText":"Graphic Design (+10 years)","anchorLink":"https://www.workana.com/hire/graphic-design","isCertified":false,"title":"Graphic Design - Freelancers"},{"anchorText":"WordPress (+10 years)","anchorLink":"https://www.workana.com/hire/wordpress","isCertified":false,"title":"WordPress - Freelancers"},{"anchorText":"JavaScript (5 to 10 years)","anchorLink":"https://www.workana.com/hire/javascript","isCertified":false,"title":"JavaScript - Freelancers"},{"anchorText":"Typescript (3 to 5 years)","anchorLink":"https://www.workana.com/hire/typescript","isCertified":false,"title":"Typescript - Freelancers"},{"anchorText":"HTML (+10 years)","anchorLink":"https://www.workana.com/hire/html","isCertified":false,"title":"HTML - Freelancers"},{"anchorText":"PHP (+10 years)","anchorLink":"https://www.workana.com/hire/php","isCertified":false,"title":"PHP - Freelancers"}]},{"isHero":false,"profileUrl":"https://www.workana.com/freelancer/879f08f687fc3b31c6c16d100d002904","profileLogoUrl":"https://cf.workana.com/logos/26cf4615ff21eea40c26bbea98ccb86b/qg/IMG_20240825_001855_160_160.jpg","profileName":"Mapie V. M.","hash":"879f08f687fc3b31c6c16d100d002904","roleName":"Full Stack Developer","tagline":"The right tool for the right job","isVerifiedAgency":false,"rating":5,"ratingLabel":"5 of 5.00","completedProjects":4,"badges":[{"title":"Freelancer bronze","size":"small","position":"bronze","profile":"","type":"bronze"}],"country":{"name":"Mozambique","img":"

","searchLinkUrl":"https://www.workana.com/jobs?country=MZ"},"completedProjectsForView":"4","dangerouslyWillBeRenderAsHtml_description":"I'm Mapie Victorino Mamunhe, a Software engineer working in the area for more than 6 years as a Freelance developer, acting in Maputo City as well in freelancing platforms such as Upwork and Fiverr.
I have worked in a Mozambican company as an Intermediate software engineer, building fullstack software solutions using technologies such as React for frontend development, PHP and Nodejs for backend and MySQL for database management.
Working currently as a Software engineer, using Angular, Spring as main stack, additionally, working with automation of tasks using groovy, bash, and other scripting technologies.
I have been coding for more than 7 years now, and gratued as a Software Engineering in the Joaquim Chissano University","canInvite":false,"shouldShowHireMeDialog":false,"sameAsLoggedInCompany":false,"position":"bronze","hourlyRate":"USD 15.00","hourlyWorkedProjects":2,"lastActiveLoginRelativeToUser":"March 29, 2026 09:49","lastActiveLoginRelative":"Last month","registeredSinceRelativeToUser":"March 23, 2022 12:15","registeredSinceRelative":"4 years ago","recentBreaches":{"value":0,"label":"0 recent violations"},"workerSkills":[{"anchorText":"JavaScript (3 to 5 years)","anchorLink":"https://www.workana.com/hire/javascript","isCertified":false,"title":"JavaScript - Freelancers"},{"anchorText":"React.js (1 to 3 years)","anchorLink":"https://www.workana.com/hire/react-js","isCertified":false,"title":"React.js - Freelancers"},{"anchorText":"C# (1 to 3 years)","anchorLink":"https://www.workana.com/hire/c-1","isCertified":false,"title":"C# - Freelancers"},{"anchorText":"SQL (3 to 5 years)","anchorLink":"https://www.workana.com/hire/sql","isCertified":false,"title":"SQL - Freelancers"},{"anchorText":"Data Engineer (Java) (3 to 5 years)","anchorLink":"https://www.workana.com/hire/data-engineer-java","isCertified":false,"title":"Data Engineer (Java) - Freelancers"},{"anchorText":"Spring Boot (3 to 5 years)","anchorLink":"https://www.workana.com/hire/spring-boot","isCertified":false,"title":"Spring Boot - Freelancers"},{"anchorText":"SQL Server (3 to 5 years)","anchorLink":"https://www.workana.com/hire/sql-server","isCertified":false,"title":"SQL Server - Freelancers"},{"anchorText":"Angular (1 to 3 years)","anchorLink":"https://www.workana.com/hire/angular","isCertified":false,"title":"Angular - Freelancers"},{"anchorText":"Git (5 to 10 years)","anchorLink":"https://www.workana.com/hire/git","isCertified":false,"title":"Git - Freelancers"},{"anchorText":"Testing (1 to 3 years)","anchorLink":"https://www.workana.com/hire/testing","isCertified":false,"title":"Testing - Freelancers"},{"anchorText":"Java (3 to 5 years)","anchorLink":"https://www.workana.com/hire/java","isCertified":false,"title":"Java - Freelancers"},{"anchorText":"Typescript (1 to 3 years)","anchorLink":"https://www.workana.com/hire/typescript","isCertified":false,"title":"Typescript - Freelancers"},{"anchorText":"ASPNET Core (1 to 3 years)","anchorLink":"https://www.workana.com/hire/aspnet-core","isCertified":false,"title":"ASPNET Core - Freelancers"},{"anchorText":"Blazor (1 to 3 years)","anchorLink":"https://www.workana.com/hire/blazor","isCertified":false,"title":"Blazor - Freelancers"},{"anchorText":"REST API (1 to 3 years)","anchorLink":"https://www.workana.com/hire/rest-api","isCertified":false,"title":"REST API - Freelancers"}]},{"isHero":false,"profileUrl":"https://www.workana.com/freelancer/3f71ba9f56f59601775c4bddf6b0d99b","profileLogoUrl":"https://cf.workana.com/logos/e9c64a9fe82a6ac5111f442b0cf6a5bb/gs/Perfil_160_160.jpeg","profileName":"Felipe A.","hash":"3f71ba9f56f59601775c4bddf6b0d99b","roleName":"Web Developer","tagline":null,"isVerifiedAgency":false,"rating":5,"ratingLabel":"5 of 5.00","completedProjects":1,"badges":[{"title":"Freelancer bronze","size":"small","position":"bronze","profile":"","type":"bronze"}],"country":{"name":"Brazil","img":"

","searchLinkUrl":"https://www.workana.com/jobs?country=BR"},"completedProjectsForView":"1","dangerouslyWillBeRenderAsHtml_description":"Desde cedo, fui fascinado pela programação e pela capacidade de transformar problemas complexos em soluções inteligentes. Iniciei minha jornada no SENAI aos 16 anos e, embora meu primeiro foco tenha sido na automação industrial, logo percebi que minha verdadeira paixão estava no desenvolvimento de software e na análise de dados.
Com o tempo, minha trajetória se moldou para a integração de sistemas, processamento de dados, arquitetura de software e análise de desempenho. Ao longo da minha carreira, desenvolvi competências em criar soluções que otimizam processos e ajudam empresas a tomar decisões estratégicas baseadas em dados sólidos e insights valiosos.
Atualmente, como Analista de Dados e Sistemas, utilizo meu conhecimento para otimizar operações, automatizar processos e transformar dados em informações acionáveis. Minha experiência envolve não apenas a aplicação de tecnologias específicas, mas também a construção de soluções escaláveis e eficientes, alinhadas com os objetivos de negócios.
- Análise e modelagem de dados: Capacidade de transformar dados brutos em soluções analíticas avançadas, fornecendo insights estratégicos que suportam a tomada de decisões e melhoram a performance dos negócios.
- Integração de sistemas e automação: Expertise em conectar sistemas e automatizar processos complexos, garantindo uma troca de informações eficiente e sem falhas, otimizando operações e impulsionando a produtividade.
- Arquitetura de software e desenvolvimento de soluções escaláveis: Projetar e implementar soluções de software robustas e escaláveis, alinhadas com os requisitos de negócios, visando inovação e resultados duradouros.
- Apoio em projetos de inovação e transformação digital: Contribuição ativa para projetos inovadores, utilizando metodologias ágeis para facilitar a entrega de soluções eficazes e melhorar processos internos.
Sou motivado por desafios e estou sempre em busca de oportunidades para aplicar minha experiência e expandir meu conhecimento, sempre com o objetivo de entregar soluções que agreguem valor e melhorem a eficiência operacional.","canInvite":false,"shouldShowHireMeDialog":false,"sameAsLoggedInCompany":false,"position":"bronze","hourlyRate":"R$ 40.00","hourlyWorkedProjects":0,"lastActiveLoginRelativeToUser":"May 14, 2026 14:59","lastActiveLoginRelative":"17 hours ago","registeredSinceRelativeToUser":"March 19, 2024 17:21","registeredSinceRelative":"2 years ago","recentBreaches":{"value":0,"label":"0 recent violations"},"workerSkills":[{"anchorText":"Java (1 to 3 years)","anchorLink":"https://www.workana.com/hire/java","isCertified":false,"title":"Java - Freelancers"},{"anchorText":"Microsoft PowerApps (1 to 3 years)","anchorLink":"https://www.workana.com/hire/microsoft-powerapps","isCertified":false,"title":"Microsoft PowerApps - Freelancers"},{"anchorText":"Data Engineer (Python) (1 to 3 years)","anchorLink":"https://www.workana.com/hire/data-engineer-python","isCertified":false,"title":"Data Engineer (Python) - Freelancers"},{"anchorText":"Power BI (1 to 3 years)","anchorLink":"https://www.workana.com/hire/power-bi","isCertified":false,"title":"Power BI - Freelancers"},{"anchorText":"SQL (1 to 3 years)","anchorLink":"https://www.workana.com/hire/sql","isCertified":false,"title":"SQL - Freelancers"},{"anchorText":"Data Engineer (Java) (1 to 3 years)","anchorLink":"https://www.workana.com/hire/data-engineer-java","isCertified":false,"title":"Data Engineer (Java) - Freelancers"},{"anchorText":"Spring Framework (1 to 3 years)","anchorLink":"https://www.workana.com/hire/spring-framework","isCertified":false,"title":"Spring Framework - Freelancers"},{"anchorText":"Angular (1 to 3 years)","anchorLink":"https://www.workana.com/hire/angular","isCertified":false,"title":"Angular - Freelancers"},{"anchorText":"Extract Transform Load (ETL) (1 to 3 years)","anchorLink":"https://www.workana.com/hire/extract-transform-load-etl","isCertified":false,"title":"Extract Transform Load (ETL) - Freelancers"},{"anchorText":"Python (1 to 3 years)","anchorLink":"https://www.workana.com/hire/python","isCertified":false,"title":"Python - Freelancers"}]},{"isHero":false,"profileUrl":"https://www.workana.com/freelancer/a706b47276a8195c7cf51e0a3752dde6","profileLogoUrl":"https://cf.wkncdn.com/static/assets/build/img/jobs/sneak-peek-user.dc8777a76.svg","profileName":"Kass H.","hash":"a706b47276a8195c7cf51e0a3752dde6","roleName":"Full Stack Developer","tagline":null,"isVerifiedAgency":false,"rating":0,"ratingLabel":"No ratings yet","completedProjects":0,"badges":[{"title":"Freelancer iron","size":"small","position":"iron","profile":"","type":"iron"}],"country":{"name":"United States","img":"

","searchLinkUrl":"https://www.workana.com/jobs?country=US"},"completedProjectsForView":"0","dangerouslyWillBeRenderAsHtml_description":"","canInvite":false,"shouldShowHireMeDialog":false,"sameAsLoggedInCompany":false,"position":"iron","hourlyRate":null,"hourlyWorkedProjects":0,"lastActiveLoginRelativeToUser":"January 23, 2026 05:33","lastActiveLoginRelative":"3 months ago","registeredSinceRelativeToUser":"January 23, 2026 05:33","registeredSinceRelative":"3 months ago","recentBreaches":{"value":0,"label":"0 recent violations"},"workerSkills":[{"anchorText":"PHP (5 to 10 years)","anchorLink":"https://www.workana.com/hire/php","isCertified":false,"title":"PHP - Freelancers"},{"anchorText":"Java (5 to 10 years)","anchorLink":"https://www.workana.com/hire/java","isCertified":false,"title":"Java - Freelancers"},{"anchorText":"Data Engineer (Java) (5 to 10 years)","anchorLink":"https://www.workana.com/hire/data-engineer-java","isCertified":false,"title":"Data Engineer (Java) - Freelancers"}]},{"isHero":false,"profileUrl":"https://www.workana.com/freelancer/4f4ccb92c60790dc695cb4ef77803334","profileLogoUrl":"https://cf.workana.com/logos/6f46aff26317fd4afc23eac84f46ed0e/en/liyajun_160_160.jpeg","profileName":"Yazhen L.","hash":"4f4ccb92c60790dc695cb4ef77803334","roleName":"Data Engineer","tagline":null,"isVerifiedAgency":false,"rating":0,"ratingLabel":"No ratings yet","completedProjects":0,"badges":[{"title":"Freelancer iron","size":"small","position":"iron","profile":"","type":"iron"}],"country":{"name":"China","img":"

","searchLinkUrl":"https://www.workana.com/jobs?country=CN"},"completedProjectsForView":"0","dangerouslyWillBeRenderAsHtml_description":"Hello, I'm Yazhen, a tech enthusiast and versatile professional specializing in big data engineering and Java programming. My skills span a wide range, from design patterns to big data components, enabling me to deliver efficient and reliable solutions to clients.
Key Skills:
Java and Scala Programming: Proficient in both Java and Scala programming languages, with the ability to adapt to various project requirements.
Big Data Processing: Expertise in Spark, Flink, Hbase, and Kafka, providing experience in handling large-scale data and real-time data streams.
Design Patterns and Algorithms: Familiar with commonly used design patterns such as strategy and template patterns, coupled with the capability to optimize algorithms and data structures.
Why Choose Me:
I not only prioritize technical depth but also focus on creating value for clients. With a wealth of project experience, I can provide high-quality technical solutions to ensure the success of your projects.
Let's collaborate to create outstanding technical solutions and achieve your goals!","canInvite":false,"shouldShowHireMeDialog":false,"sameAsLoggedInCompany":false,"position":"iron","hourlyRate":"USD 25.00","hourlyWorkedProjects":0,"lastActiveLoginRelativeToUser":"March 06, 2024 11:10","lastActiveLoginRelative":"2 years ago","registeredSinceRelativeToUser":"March 04, 2024 06:25","registeredSinceRelative":"2 years ago","recentBreaches":{"value":0,"label":"0 recent violations"},"workerSkills":[{"anchorText":"Data Engineer (Scala) (3 to 5 years)","anchorLink":"https://www.workana.com/hire/data-engineer-scala","isCertified":false,"title":"Data Engineer (Scala) - Freelancers"},{"anchorText":"Data Engineer (Java) (3 to 5 years)","anchorLink":"https://www.workana.com/hire/data-engineer-java","isCertified":false,"title":"Data Engineer (Java) - Freelancers"},{"anchorText":"SQL (3 to 5 years)","anchorLink":"https://www.workana.com/hire/sql","isCertified":false,"title":"SQL - Freelancers"}]},{"isHero":false,"profileUrl":"https://www.workana.com/freelancer/7c2907c323c4f09fccf89a0d07cdca6b","profileLogoUrl":"https://cf.wkncdn.com/static/assets/build/img/jobs/sneak-peek-user.dc8777a76.svg","profileName":"Oguz K. K.","hash":"7c2907c323c4f09fccf89a0d07cdca6b","roleName":"Back-end Developer","tagline":null,"isVerifiedAgency":false,"rating":0,"ratingLabel":"No ratings yet","completedProjects":0,"badges":[{"title":"Freelancer iron","size":"small","position":"iron","profile":"","type":"iron"}],"country":{"name":"Turkey","img":"

","searchLinkUrl":"https://www.workana.com/jobs?country=TR"},"completedProjectsForView":"0","dangerouslyWillBeRenderAsHtml_description":"","canInvite":false,"shouldShowHireMeDialog":false,"sameAsLoggedInCompany":false,"position":"iron","hourlyRate":null,"hourlyWorkedProjects":0,"lastActiveLoginRelativeToUser":"November 02, 2024 17:27","lastActiveLoginRelative":"Last year","registeredSinceRelativeToUser":"November 02, 2024 17:27","registeredSinceRelative":"Last year","recentBreaches":{"value":0,"label":"0 recent violations"},"workerSkills":[{"anchorText":"Java (1 to 3 years)","anchorLink":"https://www.workana.com/hire/java","isCertified":false,"title":"Java - Freelancers"},{"anchorText":"Data Engineer (Java) (1 to 3 years)","anchorLink":"https://www.workana.com/hire/data-engineer-java","isCertified":false,"title":"Data Engineer (Java) - Freelancers"}]},{"isHero":false,"profileUrl":"https://www.workana.com/freelancer/1f4f8d36caa3f7c1172d38a41c4a4878","profileLogoUrl":"https://cf.wkncdn.com/static/assets/build/img/jobs/sneak-peek-user.dc8777a76.svg","profileName":"Igor T.","hash":"1f4f8d36caa3f7c1172d38a41c4a4878","roleName":"Back-end Developer","tagline":null,"isVerifiedAgency":false,"rating":0,"ratingLabel":"No ratings yet","completedProjects":0,"badges":[{"title":"Freelancer iron","size":"small","position":"iron","profile":"","type":"iron"}],"country":{"name":"Turkey","img":"

","searchLinkUrl":"https://www.workana.com/jobs?country=TR"},"completedProjectsForView":"0","dangerouslyWillBeRenderAsHtml_description":"","canInvite":false,"shouldShowHireMeDialog":false,"sameAsLoggedInCompany":false,"position":"iron","hourlyRate":null,"hourlyWorkedProjects":0,"lastActiveLoginRelativeToUser":"November 11, 2024 07:54","lastActiveLoginRelative":"Last year","registeredSinceRelativeToUser":"November 03, 2024 16:13","registeredSinceRelative":"Last year","recentBreaches":{"value":0,"label":"0 recent violations"},"workerSkills":[{"anchorText":"Python (1 to 3 years)","anchorLink":"https://www.workana.com/hire/python","isCertified":false,"title":"Python - Freelancers"},{"anchorText":"Java (3 to 5 years)","anchorLink":"https://www.workana.com/hire/java","isCertified":false,"title":"Java - Freelancers"},{"anchorText":"Data Engineer (Java) (1 to 3 years)","anchorLink":"https://www.workana.com/hire/data-engineer-java","isCertified":false,"title":"Data Engineer (Java) - Freelancers"}]},{"isHero":false,"profileUrl":"https://www.workana.com/freelancer/7d9865ecc76aee741d60af92d544c450","profileLogoUrl":"https://cf.workana.com/logos/74aa1895b3b30026cf61fdd935679532/gs/1715286581146_160_160.jpeg","profileName":"João V.","hash":"7d9865ecc76aee741d60af92d544c450","roleName":"Data Engineer","tagline":null,"isVerifiedAgency":false,"rating":0,"ratingLabel":"No ratings yet","completedProjects":0,"badges":[{"title":"Freelancer iron","size":"small","position":"iron","profile":"","type":"iron"}],"country":{"name":"India","img":"

","searchLinkUrl":"https://www.workana.com/jobs?country=IN"},"completedProjectsForView":"0","dangerouslyWillBeRenderAsHtml_description":"? Sobre Mim
Sou engenheiro de computação formado pela Universidade Federal de Mato Grosso (UFMT) e atualmente pós-graduando em Engenharia e Arquitetura de Dados. Ao longo da minha carreira, descobri minha paixão pela análise e estruturação de dados para gerar insights estratégicos que impulsionam a eficiência organizacional.
? Minha Jornada Profissional
Iniciei minha carreira com foco em Business Intelligence e análise de dados. Trabalhei como estagiário no Tribunal de Contas do Estado de Mato Grosso, onde contribuí com desenvolvimento e suporte de painéis no Qlik Sense. Desde então, evoluí na área de dados, ocupando cargos de assistente e analista, passando por empresas como o Grupo OTG, onde fui responsável por desenvolver relatórios no Power BI e gerenciar bancos de dados na nuvem (AWS, Azure).
Hoje, atuo como Desenvolvedor Full Stack na Empaer, combinando meu conhecimento em BI com desenvolvimento de sistemas em Angular e Flutter, e automações em Python. Essa experiência tem me permitido expandir minha atuação e aprofundar minhas habilidades em soluções orientadas a dados.
? Expertise Técnica
Possuo experiência em:
Ferramentas de BI: Qlik Sense, Power BI
Programação: Python, Angular, Flutter, Java
Bancos de Dados: SQL Server, MySQL, PostgreSQL
Plataformas de Cloud: AWS, Azure
Desenvolvimento Web: HTML, CSS, JavaScript","canInvite":false,"shouldShowHireMeDialog":false,"sameAsLoggedInCompany":false,"position":"iron","hourlyRate":"USD 30.00","hourlyWorkedProjects":0,"lastActiveLoginRelativeToUser":"December 19, 2024 15:45","lastActiveLoginRelative":"Last year","registeredSinceRelativeToUser":"November 27, 2024 19:58","registeredSinceRelative":"Last year","recentBreaches":{"value":0,"label":"0 recent violations"},"workerSkills":[{"anchorText":"Python (3 to 5 years)","anchorLink":"https://www.workana.com/hire/python","isCertified":false,"title":"Python - Freelancers"},{"anchorText":"Data Engineer (Java) (1 to 3 years)","anchorLink":"https://www.workana.com/hire/data-engineer-java","isCertified":false,"title":"Data Engineer (Java) - Freelancers"},{"anchorText":"Amazon Web Services (AWS) (1 to 3 years)","anchorLink":"https://www.workana.com/hire/amazon-web-services","isCertified":false,"title":"Amazon Web Services (AWS) - Freelancers"}]}],"pagination":{"total":10,"limit":10,"page":1,"pages":1,"urls":{"base":"https://www.workana.com/freelancers/data-engineer-java","template":"https://www.workana.com/freelancers/data-engineer-java?page={:page}","1":"https://www.workana.com/freelancers/data-engineer-java?page=1"},"offset":0,"nextPage":null},"g11n":{"addFreelancerToList":"Add to list","verifiedAgency":"Verified agency","completedProjects":"Completed projects","expandText":"View more","collapseText":"View less","hire":"Hire","hourlyRate":"Hourly rate: ","hourlyWorkedProjects":"Hours worked in hourly projects: ","lastActiveLogin":"Last login: ","registeredSince":"Registered since: ","certifiedSkill":"Certified skill","viewMore":"View more","pagination":{"start":"Home","final":"Final","previous":"Previous","next":"Next"}}}

Data Engineer (Java) - Freelancers

Looking for Freelance Data Engineer (Java)? Post your project and get proposals within minutes.