Senior Full Stack Engineer (Front End)

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

You will design, develop, and enhance responsive, user-centric applications within a global cybersecurity context. You’ll be part of an Agile DevSecOps team, collaborating with other UI developers, UX specialists, product owners, and software engineers to improve user experience through innovation, design thinking, and first-class engineering practices.

This role offers a unique opportunity to impact the security posture of one of the largest financial institutions in the world by enabling better visibility and faster vulnerability remediation across the enterprise.

Sounds like your kind of challenge?

What you’ll be doing

Develop and test new UI features for enterprise-level cybersecurity applications
Translate UX designs and wireframes into functional code using modern web technologies
Ensure responsiveness, scalability, and optimal performance of web applications
Build modular and reusable UI components and libraries for future use
Develop and maintain interactive prototypes (low- and high-fidelity) to validate design concepts
Contribute to design systems and shared frameworks to maintain brand and UX consistency across platforms
Collaborate with product owners, business stakeholders, and engineers to align UI solutions with business requirements
Validate user input and integrate front-end with backend services via REST APIs and microservices
Support continuous testing and feedback loops to optimize user experience based on real-world metrics
Promote Design Thinking principles across teams and integrate UX best practices into the Agile workflow

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 – remote days available depending on the client’s arrangements – 6 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

5+ years of experience in front-end development roles
Proficiency in HTML, CSS, JavaScript, React, and associated frameworks (AngularJS desirable)
Strong understanding of responsive and adaptive design principles
Experience delivering modern SPA (Single Page Applications)
Familiarity with DevOps concepts and CI/CD pipelines
Experience consuming RESTful APIs and working with microservice architectures
Effective communication skills with ability to work in global Agile teams
Excellent problem-solving and interpersonal skills
Strong analytical mindset and willingness to take ownership of design and technical problems

Nice to Have

Experience creating UX/UI design assets, wireframes, and prototypes using Figma, Sketch, or similar tools
Knowledge of graphic/UI design principles
Experience on complex web-based financial applications or cybersecurity tools built in React
Understanding of design systems and front-end performance optimization

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 (Front End)

Kraków

B2B

1400-1600 pln/md netto + VAT

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.