Senior Fullstack Engineer / Tooling Architect

Introduction We are looking for an experienced professional for the role of Senior Fullstack Engineer / Tooling Architect. In this role, you will design and develop internal developer tools as well as automate testing and release processes for a project delivered for a client from the insurance industry (HDI). You will join a 4-person technical team and deliver solutions used by approximately 200 developers across the organization. Project start: within 2–6 weeks. The project is planned until the end of the year, with the possibility of extension. Responsibilities • Designing and implementing backend CLI tools and APIs in C# / .NET (latest versions) to automate documentation and release processes • Developing and maintaining frontend interfaces supporting automation tools and documentation (mainly React; frontend-related tasks may also be delegated to other team members) • Creating and managing Azure DevOps Pipelines (YAML, scripting) and supporting infrastructure configuration using Terraform (basic/intermediate level) • Integrating mechanisms powered by Large Language Models (e.g. automatic test case updates based on Pull Requests) and applying them in the software development lifecycle • Implementing software quality concepts, including Contract Testing (PACT) and E2E frameworks (e.g. Playwright, Cypress) — experience with at least one framework is sufficient • Providing architectural guidance on integrating E2E testing with legacy systems and dedicated applications • Designing and modernizing the CI/CD toolchain as well as acting as a technical leader within the team, including organizing work and taking ownership of the domain Requirements • At least 5 years of experience in software development • Expert knowledge of C# / .NET (latest versions) with hands-on experience in building CLI tools and backend solutions • Experience with React and readiness to collaborate with frontend teams (Angular experience is also acceptable) • Practical experience with Azure DevOps Pipelines (YAML, scripting) • Basic/intermediate knowledge of Terraform (e.g. App Services configuration) • Knowledge of Contract Testing (PACT) concepts and experience with at least one E2E framework (e.g. Playwright, Cypress) — nice to have • Experience integrating tools powered by Large Language Models (OpenAI or similar) is considered an advantage • English proficiency allowing smooth technical collaboration; German is welcome but not required • A mindset focused on enabling teams and improving the productivity of other developers, combined with organizational and leadership skills We Offer • Remote work with occasional visits to the office and the client site — work from home while having the opportunity (and sometimes the need) to meet in our Wrocław office • Clear communication and a flat organizational structure — no unnecessary hierarchy and easy access to decision-makers • An individual growth path — together with your leader, you will plan your development, supported by external training and knowledge-sharing sessions • A supportive team culture — we value openness, trust, and mutual support • Engaging projects — work on meaningful solutions across various industries such as e-learning, energy, finance, manufacturing, and logistics • International teams and clients — improve your English and/or German in real project environments • Language classes — company-funded English and German lessons at all levels, including sessions with native speakers • Benefits package — private healthcare (LuxMed), life insurance (Unum), and Multisport card • Focus on integration and wellbeing — regular team meetings, internal initiatives, squash and badminton groups, and many everyday activities that help build relationships and a positive atmosphere