Senior Java Fullstack Developer
Kyotu Technology
Remote · Wrocław, Warszawa, Kraków, Gdańsk, Poznań · Poland · Senior
Agentic fit score: 60/100
- Claude Code
- Cursor
- Copilot
🔍 Senior Java Fullstack Developer
Location: 100% remote (Poland)
Contract type: B2B
Capacity: Full-time
Rate: 120–150 PLN + VAT / h
🚀 About the role
We are looking for an experienced Senior Java Fullstack Developer to join our Talent Pool for upcoming software development projects.
We collaborate with international clients on modern web applications, enterprise platforms, and scalable backend systems. Depending on the project, you may be involved in developing new solutions, extending existing products, or modernizing established applications.
We are looking for an engineer with a strong Java and Spring Boot background who is also comfortable working on the frontend using React, Angular, or Vue.js .
You should be able to independently deliver features, contribute to technical decisions, and use modern development practices, including AI-assisted coding tools .
💡 Who we are
Kyotu Technology is a boutique software house based in Wrocław and Warsaw, working fully remotely or in hybrid mode across Poland. We focus on long-term, high-quality engineering and building production-grade systems with real business impact.
Our engineers have real influence on technical decisions and the way solutions are delivered.
🧠 Your responsibilities
design, develop, and maintain backend services using Java and Spring Boot
build and enhance frontend features using React, Angular, or Vue.js
develop and integrate REST APIs
work with relational databases and optimize application performance
contribute to system architecture and technical design decisions
write clean, maintainable, and well-tested code
participate in code reviews, troubleshooting, and continuous improvement
work with CI/CD pipelines and support application deployments
use AI-powered development tools to improve coding efficiency, debugging, and everyday engineering workflows
collaborate with developers, QA engineers, and other project stakeholders
🧩 Must haves
minimum 5 years of commercial software development experience , including solid experience with Java
strong knowledge of Java 17+ and Spring Boot
practical experience with Spring Framework, Spring Data JPA / Hibernate, and Spring Security
commercial experience with at least one modern frontend framework: React, Angular, or Vue.js
good knowledge of JavaScript / TypeScript, HTML, and CSS
experience designing and developing REST APIs
good understanding of SQL and relational databases , such as PostgreSQL or MySQL
experience with microservices or distributed systems
practical knowledge of Git, Docker, and CI/CD pipelines , using tools such as GitHub Actions, GitLab CI, or Jenkins
experience with automated testing, including JUnit, Mockito , or similar tools
hands-on experience using AI-assisted development tools , such as GitHub Copilot, Cursor, Claude Code, or ChatGPT, in daily development work
understanding of software design principles, clean code, and application security
ability to independently deliver features and solve technical problems
good communication skills and English at B2+ level
✨ Nice to have
experience with AWS, Azure, or Google Cloud
knowledge of Kubernetes
experience with Kafka, RabbitMQ, or other messaging technologies
familiarity with Redis or other caching solutions
experience with GraphQL
knowledge of infrastructure as code, such as Terraform
experience with application monitoring and observability tools
📦 What we offer
B2B contract
rate: 120–150 PLN + VAT / h
100% remote work
opportunity to collaborate on international software development projects
modern technology stack and engineering practices
opportunity to work with AI-assisted development tools
collaboration with experienced engineering teams
real influence on technical decisions and delivered solutions
Please note: This recruitment is part of our Talent Pool initiative. We are connecting with experienced Java Fullstack Developers for upcoming opportunities. Project details and potential start dates will be discussed individually as suitable opportunities become available.