Senior Python AI Engineer for Legacy Modernisation (Hybrid)

Jit Team; Polska; Hybrid; PLN 190,000 - 260,000; Full time

Job summary

Jit Team in Poland is seeking a Python-focused AI-enabled specialist to design, develop and evolve AI-powered agent workflows for modernising legacy applications. You will work in a hybrid setup across Poland, collaborating with international teams to deliver scalable automation.

Proficiency in Python, CI/CD, Docker and Kubernetes is required, with hands-on experience in AI tooling and LLMs. The role offers a Scandinavian-style collaboration culture and a strong focus on work-life balance.

Qualifications

• Strong programming skills in Python.
• Solid understanding of software engineering principles including Git, code reviews, testing and clean code.
• Practical knowledge of CI/CD and containerisation, with Docker and Kubernetes.
• Hands-on experience with or strong interest in LLMs, prompt engineering and AI-assisted development.
• Understanding of agentic AI concepts, including agents, tool use and agent workflows.
• Ability to read and understand code written in different programming languages, including legacy technologies such as Java.
• Experience with CI/CD and GitOps tools such as Tekton or ArgoCD.
• Knowledge of Ansible or other Infrastructure as Code tools.
• Familiarity with agentic coding tools such as Claude Code or similar solutions.
• Knowledge of LLM evaluation, context engineering or Model Context Protocol (MCP).
• Experience with legacy modernisation, code migration or large-scale refactoring is a strong advantage.
• Familiarity with Java/Spring, frontend technologies or other modern target stacks is a plus.
• Experience working in enterprise or regulated environments, preferably banking.
• Strong analytical and problem-solving skills, with a structured approach to experimentation.
• Good communication skills in English and ability to work effectively in a collaborative team.

Responsibilities

• Design, develop and improve AI-powered agent workflows for legacy code modernisation.
• Build and maintain tooling for automated code analysis, migration and refactoring.
• Develop solutions in Python following clean, maintainable software engineering practices.
• Integrate AI-driven workflows with CI/CD and deployment platforms such as Tekton, ArgoCD and Ansible.
• Work with LLMs, prompting, agentic coding tools and tool-use workflows.
• Analyse legacy codebases and help transform them into modern, platform-approved technology stacks.
• Collaborate with application teams to turn real migration cases into reliable and repeatable automation.
• Experiment with different LLM providers, models and approaches in a vendor-agnostic environment.
• Contribute to testing, evaluation and continuous improvement of AI-generated migrations.
• Work with containerised environments using Docker and Kubernetes.

Skills

Python

LLM / AI

CI/CD

Docker

Kubernetes

Git

Agentic AI concepts

Tools

Tekton

ArgoCD

Docker

Kubernetes

Ansible

Git

Java

Spring

Job description

Jit Team in Poland is seeking a Python-focused AI-enabled specialist to design, develop and evolve AI-powered agent workflows for modernising legacy applications. You will work in a hybrid setup across Poland, collaborating with international teams to deliver scalable automation.

Proficiency in Python, CI/CD, Docker and Kubernetes is required, with hands-on experience in AI tooling and LLMs. The role offers a Scandinavian-style collaboration culture and a strong focus on work-life balance.