Senior Full Stack Engineer

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

We are looking for an experienced Senior Full Stack Engineer to join our Data and Insights Technology team, which is responsible for global reporting and analytics across business, technology, and transformation operations. Our mission is to enable effective decision-making through accurate and relevant data insights, covering financial management, manpower planning, delivery tracking, and service resilience.

You will work on designing, developing, and implementing web-based applications, supporting the migration of reporting suites to the cloud, and mentoring team members during technology stack transitions.

Sounds like your kind of challenge?

#LI – Hybrid

What you’ll be doing

Design, develop, test, and implement web-based applications independently and as part of a cross-country team.
Support the migration of the current reporting suite from vendor BI technology to cloud-based solutions.
Mentor and guide team members, facilitating smooth technology stack changes.
Follow IT development methodologies and security standards, ensuring adherence to coding best practices and documentation requirements.

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 – 5 days onsite per month
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

Proven experience delivering large-scale web applications in full-stack roles with microservices-based architecture.
Excellent knowledge of Java (Java 17+), Spring/Spring Boot, and RESTful APIs.
Strong front-end expertise with ReactJS, JavaScript, TypeScript.
Hands-on experience with Google Cloud Platform (GCP) products.
Experience working with relational databases/data warehouses (e.g., PostgreSQL, BigQuery, AlloyDB).
Familiarity with Git and SCM systems (e.g., GitHub).
Understanding of CI/CD pipelines (e.g., Jenkins).
Experience in data visualization (e.g., Apache ECharts) is an advantage.
Strong communication skills and ability to explain complex technical concepts clearly.
A natural desire to share knowledge and mentor others.

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 Engineer

Kraków

B2B

1600 - 1800 PLN/MD net + VAT

Apply for position

I will handle your recruitment

Magdalena Szymoniuk

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.