Senior Java Microservices Developer – AI-Enabled Financial Platform

Project overview

Unleash innovation — develop AI-enabled financial platforms that redefine operational excellence.

Krakow-based opportunity with hybrid work model (up to 2 remote days per week).

As a Senior Java Microservices Developer, you will be working for our client in the financial services industry, delivering cutting-edge collateral and facility management solutions. You will contribute to building scalable, secure, and resilient microservice architectures that incorporate AI-driven enhancements, supporting global financial operations and innovation.

Responsibilities

You're ideal for this role if you have:

• Build, test, release, and support Java microservices (Spring Boot) in enterprise environments, ensuring high standards of security, performance, and operational resilience.
• Contribute to solution design for microservices and integration patterns, aligning with target architecture and non-functional requirements.
• Identify and resolve technical risks, dependencies, and delivery blockers collaboratively with delivery teams.
• Follow and enhance engineering standards, including CI/CD practices, testing strategies, and security protocols.
• Participate in technical reviews such as design, code, and security reviews, remediating findings efficiently.
• Use AI-assisted tooling (e.g., Copilot) responsibly to accelerate delivery while maintaining code quality and security.
• Apply GenAI techniques (LLMs, RAG, agent workflows) in development and architecture, adhering to governance and controls.
• Embed security-by-design principles, vulnerability management, and compliance into everyday development.
• Support deployment activities, environment readiness, and smooth release cycles.
• Collaborate closely with cross-disciplinary teams including architects, QA, SRE, and system owners.
• Foster a culture of continuous improvement, inclusive collaboration, and shared accountability.
• 4+ years of experience building Java microservices (Spring Boot) within enterprise environments.
• Solid expertise with RDBMS (Oracle/PostgreSQL), schema design, performance tuning, and transactional integrity.
• Proven experience with unit and integration testing (JUnit, Mockito, Testcontainers, API/contract testing).
• Familiarity with CI/CD pipelines and quality gates (Jenkins, GitLab, Sonar, SAST/DAST, dependency scanning).
• Good understanding of REST, messaging/eventing, API design, and versioning strategies.
• Hands-on experience with cloud platforms, specifically GCP or Azure
• Practical knowledge of GenAI concepts, LLMs, RAG/agent patterns, and related governance.
• Ability to design pragmatic solutions under delivery pressure.

Nice to have

Language Required for the role:

Eligibility for the role:

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• Experience delivering regulated financial services platforms with focused audit and control requirements.
• Exposure to cloud-native patterns (containers, Kubernetes, service mesh) and modern observability tooling.
• Background in performance engineering and resilience testing.
• Prior experience implementing AI-enabled SDLC practices for measurable productivity.
• Fluent English (verbal and written).
• Only candidates with an existing legal right to work in the European Union will be considered for this role.

Project details

• Start: flexible
• Remote: hybrid
• Location: Krakow, PL
• Rate: 30-330 EUR/h