Senior React Native Engineer

Northmill Bank is a Swedish fintech company dedicated to revolutionizing the way we manage and protect our finances. We're creating a different kind of banking experience — digital yet personal.

Founded in 2006, Northmill has grown to over 200 employees across 3 countries, 2,500 merchants, and 600,000 users. We use the latest technology to build secure, smart, and user-friendly products for both consumers and businesses. Our customers are the reason we do what we do. We're a 100% cloud-based product company where technology drives everything we build.

Take the chance to be a part of us and our journey!

About the role:

As a Senior React Native Engineer, you’ll join a cross-functional product team and play a key role in shaping and building our mobile and web banking applications. You’ll work hands-on with React Native, React.js, and TypeScript, contributing to both the technical foundation and the user experience of our products.

You’ll help build customer-facing features for digital banking — including payments, credit, and personal finance tools — all designed to improve financial wellbeing.

You’ll work closely with backend developers, designers, and product managers to bring new features to life — always with performance, security, and usability in mind. You’ll also help guide architectural decisions and continuously improve our ways of working.

You’ll be working within international team of great engineers located in Poland (office in Katowice city center) and Sweden (headquarters located in Stockholm city center).

Your background:

• Solid experience in building mobile and/or web applications
• Strong skills in React Native (CLI or Expo) and TypeScript
• Experience with React.js and building component-based UIs
• Familiar with web services and APIs
• Comfortable using modern dev practices (code reviews, CI/CD, testing)
• Exposure to Agile workflows

You are a creative and curious person with a genuine interest in software development. You’re excited about exploring new technologies and trends, and you enjoy sharing knowledge with your team.

Like us, you probably love writing clean, high-quality code — and you're not afraid to flag issues or suggest better solutions. You're a true team player who thrives in a collaborative, agile environment.

Must have:

• Polish or UE citizenship or a company registered in Poland.
  
• Fluent Polish or English. 

Bonus points if you also have:

• Experience with native Android and/or iOS development
• A degree in Computer Science, Engineering, or a related field
• Backend experience NestJS, GraphQL and familiar with Accessibility (a11y)
  

What we offer: 

• Projects (also from scratch) within a group of experts who are one of the best in Europe! 💪
• Real influence on tech stack and financial products, small project teams (max. 8 team members).
• A non-corporate atmosphere full of openness to innovation, improvement, teamwork and data-driven approach.
• A collaborative and international work environment with a strong focus on teamwork and professional growth.
• Flexible work hours in a hybrid mode with office in Katowice city center.
• We love to celebrate our successes (small and bigger events):Northcon, Northchill.
• Benefits package (medical healthcare, life insurance, Multisport - and partially founded card for the family, English lessons, library, Employee Assistance Program).

Apply today and be a part of Northmill!