Senior React Native developer - Team *instinctools

Home Vacancies Senior React Native developer

*instinctools is a software development company that provides custom software solutions for businesses of all sizes. Our team works closely with clients to understand their specific needs and provide personalized solutions that meet their business requirements.

*instinctools is looking for a Senior React Native developer for one of our clients.

Our client: is the world’s first regulated digital asset bank, founded in Switzerland and Singapore, offering bank-grade services for digital assets like Bitcoin, Ethereum, and tokenized assets, including custody, trading, asset management, lending, and tokenization for institutional and private clients, bridging traditional finance with the crypto economy. They provide an integrated platform for investing in digital assets with full regulatory compliance, security, and convenience

Tasks:

Build a mobile application from scratch (greenfield project)
Define and implement the application architecture
Select and set up the technology stack
Set up and maintain: CI/CD pipelines, Core project infrastructure
Development workflows and best practices
Actively contribute to building the technical foundation of the product
Work closely with: Product Manager, Internal Technical Lead
Take part in technical and architectural decision-making
Ensure high-quality, production-ready deliverables

Our expectations of the ideal candidate:

Need-to-Have skills:

5+ years of hands-on experience with React Native using TypeScript
Strong knowledge of modern React patterns and state management solutions
(e.g. Zustand, Jotai Toolkit, or similar)
Experience with React Query or other server-state management libraries
Experience with mobile navigation: React Navigation or Expo Router
Understanding of secure storage solutions and basic mobile security concepts
Solid experience with unit and integration testing for React Native applications
Ability to work with native modules
Basic configuration and troubleshooting in:
Xcode, Android Studio
High standards for code quality and delivered results
Upper-Intermediate English (written and spoken).

Nice-to-have skills:

Experience working on banking or financial applications
Experience with enterprise-grade CI/CD pipelines for mobile applications
Familiarity with: Expo modules, Expo config plugins
Experience designing scalable mobile application architectures

Soft Skills:

Strong sense of ownership
“My feature — my responsibility” mindset
Willingness to quickly investigate and fix emerging issues
High level of proactivity
Ability to identify gaps and unfinished work
Proactively suggest improvements and alternative solutions
Readiness to challenge ideas constructively
Quality-oriented mindset
Independently testing own work
Enhancing acceptance criteria when needed
Strong attention to detail
Accountability for results, not just task completion
Creative and solution-oriented thinking

We offer:

flexible working time
professional and ambitious team
learning opportunities, seminars and conferences and time for exploring new technologies
co-funding for language courses (English)

Important Notice Regarding Your Personal Data Security

At *instinctools, we take the security of your personal data very seriously. Please be informed that all official communication, offers, and correspondence from *instinctools are conducted only through our verified company resources, including:
Official Email Domain: @instinctools.com
Company Website: https://www.instinctools.com
Important Reminder:
*instinctools will NEVER ask for sensitive personal or financial information, including:
– Bank account details
– Credit/debit card numbers
– Passwords or PINs
If you receive any suspicious requests claiming to be from *instinctools via unofficial channels (e.g., personal emails, social media DMs, or phone calls), please:
– Do not respond or share any information.
– Report it immediately to compliance@instinctools.com or your official contact.
Your trust and security are our top priorities. For any questions, always verify through our official channels.

Thank you for your attention and cooperation.

Developers

*instinctools is a developer of IT solutions for Western Europe. We have over 350 projects in our portfolio. The spheres are different – from healthcare and medicine, training and education, to digital advertising, economics and IT. For the software implementation and maintenance across such a number of projects, competent developers are important.

We use a modern technology stack, the key of which are:

Javascript, ReactJS, Angular, Node.js, Golang, Python, Java, iOS, Android, Blockchain, AWS.

Join the *instinctools team!

*instinctools Poland
We have had a representative office in Poland (Warsaw) since 2021. Our Polish team consists of highly qualified and experienced specialists – most of them are Middle to Senior level Developers.
Right now we’re on the lookout for bright and innovative minds to join our professional team!

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