Senior Java Developer - AI

Location: Kraków (2 times per week from the office)

B2B | 220–240 PLN netto/hour

About the Role:

We are looking for a skilled and motivated Senior Java Developer to join the AI‑Enabled Delivery Programme within the Global Collateral & Facility Management area.

In this role, you will develop and integrate production‑grade Java microservices, contribute to solution design, and work across multiple workstreams. You will collaborate closely with Tech Leads, architects, QA, platform teams, and engineering partners to deliver secure, well‑tested, and reliable services.

Key Responsibilities:

• Build, test, release, and support Java microservices

• Contribute to solution design aligned with architecture and non‑functional requirements

• Identify and resolve technical risks, dependencies, and delivery blockers

• Follow engineering standards (coding, branching, CI/CD quality gates, test strategy)

• Deliver unit, integration, and contract tests with measurable coverage

• Participate in design, code, and security reviews

• Use AI‑assisted tooling (e.g., Copilot) responsibly to accelerate delivery

• Apply guardrails for AI‑generated code (reviews, secure coding, traceability)

• Use GenAI techniques where appropriate (LLMs, prompt engineering, validation)

• Contribute to GenAI‑enabled patterns (LLMs, RAG, agent workflows)

• Embed security‑by‑design and vulnerability management

• Build production‑ready services with observability and performance readiness

• Support release activities, integration, and environment preparation

• Collaborate with Tech Leads, QA, SRE, architects, and platform teams

Requirements:

• Strong hands‑on experience building Java microservices (Spring Boot)

• Solid experience with RDBMS (Oracle/PostgreSQL)

• Strong unit and integration testing practices (JUnit, Mockito, Testcontainers)

• Experience with CI/CD pipelines and quality gates (Jenkins/GitLab, Sonar, SAST/DAST)

• Good understanding of integration patterns (REST, messaging/eventing)

• Experience contributing to technical design and making pragmatic trade‑offs

• Hands‑on experience with GCP

• Practical exposure to GenAI concepts and engineering tooling

• Familiarity with RAG/agent patterns and governance

Nice to Have:

• Experience delivering regulated financial services platforms

• Exposure to cloud‑native patterns (containers, Kubernetes, service mesh)

• Experience with performance engineering and resilience testing

• Experience implementing AI‑enabled SDLC practices

• Hands‑on experience with GenAI integrations (RAG pipelines, evaluation, prompt/versioning)

What We Offer:

• Opportunity to work on strategic, high‑impact engineering initiatives

• Exposure to modern AI‑enabled SDLC practices

• Flexible working model

• Supportive, international engineering environment

• Benefits package: Multisport Card, Luxmed

Why apply for an Antal job offer?

When your application is successful, you will be supported by a dedicated Consultant who will stay in regular contact with you (via email or phone), help you prepare for interviews with your future employer, and ensure a smooth and professional recruitment process.

About Antal

Antal is a leading recruitment and HR advisory company, present in Poland since 1996 and later expanded to the Czech Republic and Hungary. Across the CEE region, we employ around 150 professionals who deliver a full range of services – from specialist and executive recruitment, employee outsourcing and HR consulting, to employer branding and market research.

Our division-based structure combines deep industry expertise with functional specialisation, enabling us to provide tailored solutions for companies in every sector. We act as a trusted partner for both employers and candidates, sharing our knowledge and guiding them through every stage of the talent journey. We connect exceptional people with the right opportunities and help organisations build successful teams.

Discover our latest job openings: https://en.antal.pl/candidates 
Follow us on LinkedIn: https://www.linkedin.com/company/antalpoland