Software Development Engineer in Test (frontend)

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

Join Our Team as a Software Development Engineer in Test (SDET)!

Are you passionate about building scalable automated testing systems and ensuring the highest standards of quality engineering? We’re looking for an SDET to help shape our testing strategy and make a real impact on our cutting-edge products.

Sounds like your kind of challenge?

What you’ll be doing

Define and implement testing strategies across our products.
Collaborate with teams to constantly improve testing strategies for both new and existing products.
Develop clean, elegant, and reusable code to build efficient test systems.
Design and maintain scalable automated testing frameworks to deliver value at pace.
Support software engineers as a subject matter expert and help them test their solutions effectively.
Drive the vision and direction of the testing chapter to uphold high standards of technology and processes.
Work closely with stakeholders across the business to ensure product quality aligns with customer needs.

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 days per month on-site in Warsaw 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

Excellent programming skills in a modern language (mainly Java and JavaScript/TypeScript).
Hands-on experience with frontend test automation frameworks and CI/CD pipelines.
Background in testing distributed microservices in an agile team.
Knowledge of performance and security testing techniques and tools.
Familiarity with cloud infrastructure (AWS, GCP) and configuration.
Strong understanding of BDD (Behaviour-Driven Development).

Our Tech Environment

Languages & Frameworks: Java, JavaScript/TypeScript, React Native, GraphQL
Infrastructure: AWS, Google Cloud Platform, Kubernetes
Tools: Kafka, CI/CD, automated testing frameworks

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.

Software Development Engineer in Test (frontend)

Warszawa

B2B

1300-1500 PLN/MD

Apply for position

I will handle your recruitment

Klaudia Józefowicz

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.