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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on building a Banking-as-a-Service (BaaS) platform for the UK market. The tech stack includes Java, Spring Boot or Micronaut, containerization with Docker, orchestration with Kubernetes, AWS cloud and message-driven architectures using Kafka / event sourcing. Responsibilities cover development and maintenance of core banking technology, delivering and enhancing the platform, mentoring junior engineers, writing well-tested reusable code and collaborating with stakeholders to shape platform direction. Offer includes flexible cooperation models, hybrid work (2 days/month on-site), private healthcare and a benefits package.
from: 9 October 2026
to: 8 November 2026
28 000 - 32 000 złnet (+ VAT)/ mth.B2B contract (full-time)
Offer parameters
level:senior
working mode:hybrid
location:Warszawa, Masovian
Warszawa, Masovian
Requirements
Expected technologies
Java
Spring Boot
Kubernetes
Docker
Micronaut
AWS
Kafka
Operating system
Windows
Our requirements
- Strong practical and theoretical knowledge of Java software development.
- Proven experience with Spring Boot or Micronaut.
- Understanding of Kubernetes and Docker.
- Excellent knowledge of AWS (deployment and configuration).Experience with message-driven architectures (Kafka, event sourcing).
- Success delivering in an agile environment.
- Experience working in a highly secure application environment.
- Ability to act as a subject matter expert and communicate clearly with both technical and non-technical audiences.
- Understanding how to translate business objectives into data-driven insights.
Your responsibilities
- Work as part of a core cross-functional team to develop next-generation core banking technology.
- Deliver and enhance an innovative banking platform product.
- Support and mentor junior engineers, acting as a subject matter expert.
- Write clean, reusable, and well-tested code that’s easy to maintain and extend.
- Collaborate with stakeholders to shape the direction of platform engineering and ensure customer needs remain central to key decisions.
- Uphold standards, follow best practices, and promote innovation across the backend chapter.
- Resolve complex technical issues through team collaboration and knowledge sharing.
- Note: Full project details will be provided during the recruitment process.
About the project
We’re looking for a Backend Engineer passionate about building innovative solutions using cutting-edge technologies.
We are on a mission to become the leading Banking-as-a-Service (BaaS) provider in the UK. Our solutions are powered by innovative technology and backed by strong financial stability. We’re building a team of visionaries who want to transform the financial industry landscape.
Sounds like your kind of challenge?
This is how we organize our work
This is how we work
agilescrum
This is how we work on a project
- Continuous Deployment
- Continuous Integration
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.
What we offer
- Flexible cooperation model – choose the form that suits you best (B2B, employment contract, etc.)
- Hybrid work setup – 2 days per month required on-site in Warsaw
- 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
Benefits
- sharing the costs of sports activities
- private medical care
- sharing the costs of professional training & courses
- life insurance
Mindbox Sp. z o.o.
At Mindbox, we connect top IT talents with technology projects for leading enterprises across Europe.
Our focus is on matching your skills with work that matters – projects that use modern tech stacks, solve real business challenges, and give you space to grow. By joining us, you’ll deliver technology solutions for well-known brands, supported by the Mindbox team that values knowledge-sharing and continuous development. We make sure you have the tools, flexibility, and guidance to do your best work – and to keep moving forward in your career.
Backend Engineer (Java)
28k–32k zł / mth. (B2B)
I apply to:
Mindbox Sp. z o.o.
Warszawa, Masovian
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