Senior Full Stack Java Engineer

At Mindbox we connect top IT talents with technology projects for leading enterprises across Europe.

We are seeking an experienced Senior Full Stack Java Engineer to join a global technology team building a modern microservices-based Collateral Platform for an enterprise-scale financial organization. This is a key position within a long-term transformation program aimed at replacing legacy monolithic systems with cloud-native, API-first solutions leveraging the latest Java and Angular technologies.

This opportunity offers involvement in cutting-edge projects, exposure to DevOps practices, AI-assisted coding techniques, cloud migration strategies, and the chance to make a tangible impact on global markets technology.

Sounds like your kind of challenge?

What you’ll be doing

Design, develop, and maintain performant, reusable, and reliable Java code as part of a microservices-based ecosystem.
Contribute to all phases of the software development lifecycle, including design, implementation, unit/integration testing, and deployment.
Drive adoption of DevOps practices, CI/CD automation, and AI-assisted development tools.
Implement test-driven development (JUnit, Cucumber) and ensure quality standards across code, security, and performance.
Provide technical mentorship to junior engineers, promoting knowledge sharing and team development.
Collaborate with global teams and Agile delivery squads to ensure timely delivery of features and enhancements.
Assist with platform support, incident resolution, and tooling automation to improve operational efficiency.
Partner closely with business and QA teams to translate requirements into robust solutions.

Note: Detailed project information will be shared during the recruitment process.

What you get in return

Flexible cooperation model – choose the form that suits you best
(B2B, employment contract, etc.)
Hybrid work setup – 2 times a week from the office
Collaborative team culture – work alongside experienced professionals eager to share knowledge
Continuous development – access to training platforms and growth opportunities
Comprehensive benefits – including Interpolska Health Care, Multisport card, Warta Insurance, and more
High quality equipment – laptop and essential software provided

Who we’re looking for

8+ years in Java technology stack development, including solid experience in microservices design using Java 17/21 and Spring Boot 3.x.
Proficiency with PostgreSQL and relational database systems; ability to write efficient, optimized code.
Experience implementing secure delivery pipelines (DevSecOps, CI/CD) and integrating testing frameworks.
Proven history of delivering enterprise-grade applications from design to production in Agile/DevOps environments.
Strong understanding of REST APIs, messaging channels, and distributed system architecture.
Unit and integration testing experience using JUnit, Cucumber scenarios, and CI/CD pipeline integration.
Solid communication skills and ability to work collaboratively within global delivery teams.

Nice to have:

Hands-on experience with Spring Cloud components (Hystrix, Eureka, Zuul, Feign, Ribbon).
Familiarity with AI-assisted development tools (e.g., GitHub Copilot).
Knowledge of in-memory data grid technologies (Redis, Hazelcast, Oracle Coherence).
Competency in TypeScript, Angular 17, HTML5 for front-end application development.
Experience with Ansible for deployment automation.
Exposure to cloud platforms (GCP / AWS) and container orchestration tools (Docker / Kubernetes).
Understanding of messaging systems (MQ, Solace) and event-driven architectures.

Joining this project you’ll become part of Mindbox – a tech-driven company where consulting, engineering, and talent meet to build meaningful digital solutions. We’ll back you up every step of the way, accelerate your development, and ensure your skills make a difference.

Senior Full Stack Java Engineer

Kraków

B2B

1440 - 1760 PLN/MD + VAT

Apply for position

I will handle your recruitment

Karolina Kuśmierczyk-Pazdro

SUPPORT & BENEFITS

Private healthcare

Fast access to doctors and medical tests.

Mindbox fully covers the individual package. You can extend the coverage to your partner and family on preferential terms. A wide network of medical providers and clear rules for everyday use.

Multisport

Energy that pays off.

We cover 50% of the card cost. You get access to thousands of sports facilities across Poland, plus a convenient mobile app. Additional cards for family members are available.

Training & development

Practical support for your career growth.

We co‑fund courses, certifications and conferences under a clear Training Policy. You also get access to a library of recorded webinars and trainings – available whenever you need them.

Eyewear or contact lenses co‑funding

Clear vision means comfortable work.

Up to PLN 500 every two years, with an additional PLN 300 available in justified cases. Simple reimbursement, regardless of your form of cooperation.

Group life insurance

Real protection from day one.

Option I is fully funded by Mindbox, Option II is co‑funded. You can include your partner and adult children, with coverage that also applies to treatment and hospitalisation abroad.

Ongoing support from the Talent Network Development

You’re not on your own in a project.

Regular contact, quick response and a partnership‑based approach. You focus on your work — we help take care of the rest.

Regular integration meet‑ups

Relationships that work beyond the project.

Cyclical meet‑ups for contractors in major cities across Poland. A space to talk, exchange experience and stay in real contact with the Mindbox team.

Annual company‑wide integration

One event. The whole community.

A two‑day company gathering with accommodation, transport and a full activity programme. Time to connect teams from across Poland and build shared experiences.