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Offer summary
(Summary generated by AI based on the full job description)
The project focuses on building high-quality web and mobile interfaces for banking apps within the Banking-as-a-Service domain. Technologies include React, React Native, TypeScript, GraphQL/Apollo and advanced testing (React Testing Library, Vitest). Responsibilities involve feature development, microservices integration, performance optimization, and ensuring code security and quality. The offer includes training access and comprehensive benefits such as private healthcare and insurance.
from: 17 August 2026
to: 16 September 2026
150 - 188 złnet (+ VAT)/ hr.B2B contract (full-time)
Offer parameters
level:senior
working mode:hybrid
location:Warszawa, Masovian
Warszawa, Masovian
Requirements
Expected technologies
React.js
React Native
TypeScript
JavaScript
GraphQL
Apollo
React Testing Library
Vitest
WebdriverIO
Playwright
Operating system
Windows
Our requirements
- Strong experience with React and React Native, with a focus on user experience.
- Expertise in TypeScript and modern JavaScript, advanced state management, and component patterns.
- Proficiency in managing complex data fetching using REST and GraphQL/Apollo.
- Strong focus on software quality and testing (React Testing Library, Vitest, WebdriverIO, Playwright).
- Deep understanding of web and mobile security, secure data storage, and privacy-first engineering.
- Active contributor in code reviews and technical knowledge sharing.
- Pragmatic problem-solver with robust, efficient solutions mindset.
Your responsibilities
- Build and maintain features in React and React Native apps, ensuring smooth integration with event-driven microservices.
- Collaborate in cross-functional teams with product managers and designers to solve complex UX challenges.
- Deliver clean, maintainable, and robust code with high reliability and security standards.
- Own quality through testing to keep CI/CD pipelines fast and reliable.
- Share knowledge, mentor peers, and participate in technical problem-solving sessions.
- Contribute to frontend shared libraries and design systems for consistency across banking apps.
- Optimize app performance for diverse environments, including low-connectivity scenarios, ensuring secure data handling.
- Troubleshoot production issues and contribute to long-term architectural improvements.
About the project
Are you passionate about building exceptional web and mobile experiences? Do you excel in creating clean, maintainable code and collaborating in cross-functional teams? If so, this is the role for you!
We are looking for a Frontend Engineer (mobile focused) to design and develop high-quality web and mobile interfaces that power customer banking apps and flexible services for our Banking-as-a-Service (BaaS) clients.
You’ll work with cutting-edge technologies, ensure top-notch security practices, and drive frontend innovation while being part of an inclusive, collaborative, and high-performing team.
Join Our Team as a Frontend Engineer (React Native)!
Note: Detailed project information will be shared during the recruitment process.
Warsaw: 2 days/month on-site
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
- Hybrid work setup – remote days available depending on the client’s arrangements
- 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.
Senior Frontend Engineer (React Native)
150–188 zł / hr. (B2B)
I apply to:
Mindbox Sp. z o.o.
Warszawa, Masovian
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