Senior Java FullStack Developer
Tech Stack:
Java 17+ / Spring Boot
Angular lub React
REST APIs
Git, CI/CD
AI Tools & LLMs
Azure, AWS lub GCP
Required Qualifications:
5+ years of commercial software development experience
Strong hands-on experience with Java 17+
Very good knowledge of Spring Boot and the modern Spring ecosystem
Commercial experience in frontend development
Strong practical experience with Angular and/or React
Commercial experience with cloud platforms such as Azure, AWS, or GCP
Commercial experience working with AI solutions
Hands-on experience with LLMs, AI agents, or agentic AI solutions in professional projects
Experience using GitHub Copilot or similar AI-assisted development tools
Proven experience building and integrating REST APIs
Solid understanding of modern application architectures
Understanding of SDLC, CI/CD, and software engineering best practices
English proficiency at B2 level or higher
Strong analytical and problem-solving skills
Good communication skills and ability to collaborate in international teams
Nice to Have:
Experienced in using AI tools in day-to-day workflow
Experience with DevOps practices and Infrastructure as Code (Terraform or similar)
Experience with Docker and/or Kubernetes
Experience with Kafka or other event-driven technologies
Experience with AI frameworks, orchestration tools, APIs, or RAG-based solutions
German language skills
Previous experience in financial services, banking, or FinTech environments
Project Description:
Join an international team working on modern, AI-driven software solutions. In this role, you will contribute to the design, development, and evolution of scalable applications, combining robust backend services with intuitive frontend experiences. A key aspect of the project is the integration of artificial intelligence into the software development lifecycle and business applications.
We are looking for someone who has already worked commercially with Large Language Models (LLMs), AI agents, agentic workflows, or other AI-powered solutions and understands how to apply these technologies in real-world scenarios. You will collaborate with cross-functional teams, participate in architectural discussions, and help shape innovative solutions that leverage modern software engineering practices and AI technologies.
Please note: this is a freelance engagement with a 12-month project duration.
Scope of Services:
Develop end-to-end full stack solutions using Java/Spring Boot and Angular/React.
Design and implement scalable REST APIs and backend services.
Build modern, user-focused frontend applications.
Integrate and optimize AI-powered solutions, including LLMs and AI agents.
Collaborate on architecture, technical design, and best engineering practices.
Utilize AI-assisted development tools such as GitHub Copilot.
Contribute to CI/CD processes and cloud-based deployments (Azure, AWS, GCP).
Work closely with international, cross-functional teams to deliver innovative software solutions.
- Department
- Software Delivery
- Location
- Poland (PL)
- Remote status
- Fully Remote
- Contract rate
- PLN120 - PLN150/hour
- Skills
- Java, ReactJS
- Experience
- Senior
About Spyrosoft
Spyrosoft is an authentic, cutting-edge software engineering company, established in 2016. In 2021 and 2022, we were among the fastest growing technology companies in Europe, according to the Financial Times. We were founded by a group of tech experts with established backgrounds in software engineering, who created an ‘engineer-to-engineer’ workplace, powered by enthusiasm, fairness and authentic relationships. Having a unique offering, which bridge the gap between technology and business, we specialise in technology solutions for industry 4.0, automotive, geospatial, healthcare & life sciences, employee experience & education and financial services industries.