Sr SDE - React Native
Nium
Software Engineering
Mumbai, Maharashtra, India
Posted on Jun 26, 2025
Nium, the Leader in Real-Time Global Payments
Nium, the global leader in real-time, cross-border payments, was founded on the mission to deliver the global payments infrastructure of tomorrow, today. With the onset of the global economy, its payments infrastructure is shaping how banks, fintechs, and businesses everywhere collect, convert, and disburse funds instantly across borders.
Its payout network supports 100 currencies and spans 220+ markets, 100 of which in real-time. Funds can be disbursed to accounts, wallets, and cards and collected locally in 35 markets. Nium's growing card issuance business is already available in 34 countries. Nium holds regulatory licenses and authorizations in more than 40 countries, enabling seamless onboarding, rapid integration, and compliance – independent of geography. The company is co-headquartered in San Francisco and Singapore.
About the Role
We are looking for a Senior React Native Developer to join our dynamic product engineering team. In this role, you will be responsible for developing and maintaining high-quality mobile applications using React Native, as well as contributing to our React-based web applications. You will collaborate closely with cross-functional teams, including Backend Engineers, QA, and SRE teams, to deliver scalable and performant user-facing features. This is a hands-on technical role with opportunities to influence architecture, design, and development practices.
Key Responsibilities
- Design, develop, and maintain mobile applications using React Native.
- Contribute to and maintain web applications built with React.
- Work closely with Backend teams to integrate APIs and ensure seamless functionality across platforms.
- Partner with QA to define testing strategies, write unit and integration tests, and ensure high-quality deliverables.
- Collaborate with SRE teams to ensure app performance, reliability, and deployment readiness.
- Translate product requirements into scalable, maintainable, and efficient code.
- Participate in code reviews, architecture discussions, and sprint planning.
- Stay up to date with the latest industry trends and technologies to ensure our applications remain modern and competitive.
- Mentor junior developers and share best practices for mobile and web development.
Requirements
- 4+ years of professional experience developing mobile applications using React Native.
- 1+ year of hands-on experience working with React for web applications.
- Strong understanding of JavaScript (ES6+), TypeScript, and functional programming concepts.
- Experience integrating RESTful APIs and third-party services.
- Good understanding of mobile UI/UX design principles and best practices.
- Familiarity with Git, CI/CD workflows, and Agile/Scrum development processes.
- Experience with performance optimization, debugging, and troubleshooting in mobile and web apps.
- Excellent communication and collaboration skills.
What we offer at Nium
We Value Performance: Through competitive salaries, performance bonuses, sales commissions, equity for specific roles and recognition programs, we ensure that all our employees are well rewarded and incentivized for their hard work.
We Care for Our Employees: The wellness of Nium’ers is our #1 priority. We offer medical coverage along with 24/7 employee assistance program, generous vacation programs including our year-end shut down. We also provide a flexible working hybrid working environment (3 days per week in the office).
We Upskill Ourselves: We are curious, and always want to learn more with a focus on upskilling ourselves. We provide role-specific training, internal workshops, and a learning stipend
We Constantly Innovate: Since our inception, Nium has received constant recognition and awards for how we approach both our business and talent opportunities.
We Celebrate Together: We recognize that work is also about creating great relationships with each other. We celebrate together with company-wide social events, team bonding activities, happy hours, team offsites, and much more!
We Thrive with Diversity: Nium is truly a global company, with more than 33 nationalities, based in 18+ countries and more than 10 office locations. As an equal opportunity employer, we are committed to providing a safe and welcoming environment for everyone.
For more information visit www.nium.com
Depending on your location, certain laws may regulate the way Nium manages the data of candidates. By submitting your job application, you are agreeing and acknowledging that you have read and understand our Candidate Privacy Notice located at www.nium.com/privacy/candidate-privacy-notice.