Senior Fullstack Developer (Java + React) to $6800

Senior Full Stack Developer (Java + React)

📍 Location: Remote

📃 Contract type: B2B

💰 Rate: up to 25,000 PLN / 6,800 USD net + VAT per month

🚀 Start date: ASAP / flexible

📆 Project duration: Long-term cooperation

💼 About the Role

We’re looking for an experienced Senior Full Stack Developer to join a highly agile team working on the end-to-end development of modern applications. You’ll be involved in design, architecture, coding, and DevOps, all within an Extreme Programming (XP) setup that includes remote pairing, Test-Driven Development (TDD), and continuous integration.

🧩 Responsibilities

• Full ownership of the software development lifecycle: architecture, implementation, and deployment
• Collaborate with a remote-first, XP-driven development team
• Build scalable, cloud-native applications using Java and React
• Design and develop microservices-based architecture and RESTful APIs
• Deploy and maintain solutions using Kubernetes and CI/CD pipelines (Jenkins)
• Follow TDD and BDD best practices with proper testing frameworks
• Continuously improve software quality, architecture, and team processes

✅ Required Skills

• 8+ years of experience in backend development using Java and Spring Boot / Spring Cloud
• 4+ years of experience in frontend development with React (must-have)
• Experience with Java Streams and functional programming concepts
• Hands-on experience building Reactive UI (Reactive JS)
• 2+ years of experience in TDD / BDD (JUnit, Jasmine, Mockito, Protractor/Selenium)
• Solid experience with microservices architecture
• Proficiency with DevOps tools and CI/CD pipelines (e.g., Jenkins, Git)
• Hands-on experience with Kubernetes / Cloud Foundry
• Experience designing cloud / hybrid solutions
• Familiarity with microservices design patterns (service discovery, circuit breaker, etc.)
• Good command of English (min. B2)

➕ Nice to Have

• Experience with Kotlin
• Strong understanding of architecture evaluation and technical decision-making
• Hands-on experience with cloud platforms (AWS, Azure) or other containerization tools