Senior Software Engineer

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

 

Join Us as a Senior Software Engineer!

Are you passionate about building secure, scalable, and high-quality solutions? Do you enjoy working on modern cloud platforms and enabling developers with efficiency tools? This is your opportunity to make an impact at a global financial leader.

Sounds like your kind of challenge? 

#LI- Hybrid – 6 days a month from the office in Kraków

What you’ll be doing

  • Design, develop, and maintain cloud-based applications using Java and related technologies.
  • Ensure solutions align with organizational objectives and industry best practices. 
  • Champion excellent coding practices, security principles, and maintainability across projects.
  • Implement comprehensive automated testing strategies (unit, integration, regression).
  • Collaborate across teams and approach technical challenges with an open, solution-oriented mindset.
  • Drive initiatives to enhance developer experience and efficiency.
  • Mentor and provide technical guidance to less experienced engineers.

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 setup6 days a month from the office in Kraków
  • 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

Essentials:
  • Strong communication skills in English.
  • Solid software engineering fundamentals with a polyglot mindset.
  • Hands-on experience designing, building, and operating cloud workloads.
  • Familiarity with modern concurrency models and reactive programming.
  • Strong testing strategy and application of appropriate techniques.
  • High attention to detail and commitment to quality and security.
  • Java and Spring/Spring Boot 
Desirable Skills:
  • Exposure to security engineering and API security at scale.
  • Performance testing experience.

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 Software Engineer

Kraków

B2B

1200-1500 PLN/MD netto + VAT

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.

New baby gift

Important moments matter to us.

When a child is born, we prepare a personalised gift. All it takes is a short message to the Talent Network Development team.

do you like
like our offer?

the recruitment process

We take care of every stage of process

Submit your CV

The supplier takes full responsibility for the applications, their performance and load, and monitors and fixes any problems and failures.

Contact with
a Recruiter

The supplier takes full responsibility for the applications, their performance and load, and monitors and fixes any problems and failures.

Sending your CV
to the client

The supplier takes full responsibility for the applications, their performance and load, and monitors and fixes any problems and failures.

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Referral Program

Refer a friend & get up to 6,000 PLN

Do you know an IT specialist who could be a good fit for one of our projects? Share their contact details with us and we’ll take care of the rest.

You can receive up to 6,000 PLN for a successful referral.