Detailed description of work task to be carried out We're looking for an engineer to join the team building our Tech Modernisation Framework. The framework uses AI to analyse legacy code repositories and rewrite them onto our modern, platform-approved technology stacks. You'll design and improve the agent workflows, prompts and tooling that drive these migrations, and connect them to our CI/CD and deployment platform (Tekton, ArgoCD, Ansible).
The work combines software engineering, platform automation and applied AI. You'll work hands-on with agentic coding tools such as Claude Code and the Maister project, using Anthropic and other LLM providers. The framework is deliberately vendor-agnostic, so we value people who understand the underlying concepts more than people tied to one product. You'll work closely with application teams to turn real migration cases into repeatable, reliable automation.
Must-have knowledge and experience
Strong programming skills in Python
Solid software engineering basics: Git, code review, testing, clean and maintainable code
Working knowledge of CI/CD concepts and containerised environments (Docker, Kubernetes basics)
Hands-on experience with, or strong interest in, LLMs and AI-assisted development (prompting, agents, tool use)
Able to read and understand code in several languages, including legacy code (e.g. Java)
Analytical, structured approach to problem-solving, comfortable with ambiguity and experimentation
Good communication skills in English and a collaborative attitude
Nice-to-have knowledge and experience
Experience with Tekton, ArgoCD or other GitOps/pipeline tools
Ansible or other infrastructure-as-code tools
Experience with agentic coding tools (Claude Code or similar) and agent frameworks
Knowledge of LLM evaluation, context engineering, or the Model Context Protocol (MCP)
Background in legacy modernisation, code migration or large-scale refactoring
Familiarity with Java/Spring, front-end stacks, or other target technologies
Experience working in a regulated or enterprise environment (e.g. banking)
Senior Engineer - Tech modernization framework in Gdynia – pracodawca: B2B Network
B2B Network to doskonały pracodawca, który oferuje dynamiczne środowisko pracy w branży IT, szczególnie w obszarze bankowości i rozwiązań API. Nasza kultura pracy opiera się na współpracy i innowacyjności, co sprzyja rozwojowi zawodowemu pracowników. Oferujemy atrakcyjne benefity oraz możliwość pracy w międzynarodowym zespole, co pozwala na zdobywanie cennych doświadczeń i rozwijanie umiejętności w globalnym kontekście.
