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USD
I will build java spring boot and react web applications
Pavlo Putrenkov
About this gig
Need a reliable Java/Spring Boot backend and a React interface that work together? I am a senior engineer with 10+ years of experience in payments, e-commerce and document processing. I work with Java 21, Spring Boot, PostgreSQL, Kafka, React and TypeScript.
Choose a focused bug fix, one API endpoint plus one React screen, or a small module with up to three screens. I will review the existing code and requirements, agree on acceptance criteria, implement the scoped change, add relevant automated tests and deliver source code with a short handoff note.
I can help with REST APIs, database changes, integrations, performance issues and frontend behavior. Please message me before ordering with your repository access method, expected behavior, current issue and deadline so we can confirm the package fits. New infrastructure, design from scratch and unscoped features need a custom quote.
Get to know Pavlo Putrenkov
Pavlo Putrenkov
Senior Java, Spring Boot and React Developer
- FromUkraine
- Member sinceNov 2016
- Avg. response time1 hour
Languages
English, Ukrainian
I am a senior Java engineer with 10+ years of experience building production software for payments, e-commerce and document processing. I design Java 21 and Spring Boot APIs, Kafka integrations, PostgreSQL services and automated tests. I also deliver React and TypeScript interfaces and document workflows using PDFBox, Tika and Aspose. I focus on clear scope, maintainable code, reliable delivery and direct communication. I can help with a focused bug fix, an API integration, a full-stack feature or document automation.
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FAQ
Can you work in my existing codebase?
Yes. Share the repository structure, stack versions and acceptance criteria before ordering. I can deliver a focused change in your existing project and include relevant tests.
What is included in each package?
Basic covers one reproducible defect. Standard covers one API endpoint and one React screen. Premium covers a small module with up to three screens. All include source code and relevant tests in the agreed scope.
