Senior Fullstack Engineer (Java & React & AI)

Senior Fullstack Engineer (Java & React & AI) Tech stack: Java Java/ Jakarta EE React TypeScript Docker Kubernetes GitHub Copilot Microsoft Copilot CI/CD AI Integration Services Model Context Protocol (MCP) Requirements: 5+ years of experience in software engineering and enterprise application development Strong hands-on experience with Java and Java/Jakarta EE Proven experience in software architecture and technical leadership Strong experience with React and TypeScript Experience designing scalable and maintainable applications Knowledge of distributed systems and cloud-based architectures Experience with Azure, CI/CD and DevOps practices Practical experience with Docker and containerized environments Experience mentoring engineers and driving engineering best practices Very good English communication skills (B2/C1) Nice to have: Kubernetes experience Experience modernizing legacy or monolithic applications Experience with ERP, financial or enterprise software products Hands-on experience with GitHub Copilot, Microsoft Copilot or other AI-assisted development tools Experience with AI services, integrations or developer platforms Knowledge of C or C-based technologies Experience working in international distributed teams Project description: We are looking for a Senior Software Engineer with strong architectural expertise to support the evolution of enterprise financial management platform. In this role, you will actively contribute to architectural decisions, application modernization initiatives, front-end technology standards, and AI-driven engineering practices. Working closely with architects, engineering managers, product teams, and developers, you will help shape the future technical direction of a large-scale enterprise solution while ensuring high standards of quality, scalability, maintainability, and developer productivity. Main responsibilities: Contribute to the definition and evolution of the platform architecture and technical strategy Drive technical decision-making and provide guidance across multiple engineering teams Review solution designs and implementations to ensure architectural consistency and quality Identify technical debt and support long-term modernization initiatives Lead front-end engineering standards using React and TypeScript Define reusable UI patterns, component strategies, and development best practices Support the modernization of existing applications towards modular and cloud-native architectures Contribute to containerization and orchestration initiatives using Docker and Kubernetes Champion AI-assisted software development practices and developer productivity improvements Support the implementation of AI-related services, integrations, and engineering workflows Promote engineering excellence through automation, quality standards, and Test-Driven Development (TDD) Mentor engineers, supporting their technical growth and development Collaborate closely with Product, Engineering, and Architecture teams to align technical initiatives with business objectives Participate in technical interviews and recruitment activities Stay current with emerging technologies and evaluate their applicability within the product ecosystem Department Software Delivery Role Software Engineer Locations Poland (PL) Remote status Fully Remote Hourly salary PLN120 Experience Senior Area AI, Fullstack 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.