Mobile Developer
LightUnited Kingdom1 day ago
Full-timeEngineering, Information Technology
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Retire the ERP.
Light exists to replace factory-era ERPs with software that feels alive. Our Smart Financial Platform gives modern, global companies superpowers—automated accounting, real-time reporting, and financial flows that move at the speed of the business.
We build with our customers, ship fast, and obsess over craft. In a short time, Light has gone from idea to the operating core for leading companies like Lovable, Legora, and Keyshot. People don’t just use Light - they find it joyful.
We’re an early team defining a new software category. Think engineers who love debits and credits, designers who care about reconciliation states, and operators who treat finance as a product. If you’re excited to modernize how the world runs money—one workflow at a time—you’re in the right place.
Backed by world-class investors and advised by industry titans, we’re building category-defining products with the freedom to ship ambitiously and own outcomes.
Come help us make Light the global default for next-gen finance.
Mobile Developer (React Native iOS/Android)
Early Team
This is a hands-on, product-centric engineering role. You’ll work closely with design, product, and backend teams as we expand the depth and breadth of our mobile offering. Your initial focus will be on iOS, with Android expansion planned for Q1 2026.
You'll join our mobile team in its defining phase, with direct influence on architecture, roadmap, and engineering culture. You'll help shape the app to reach our targets for usability, reliability, and craftsmanship across Light's mobile platform.
Our environment:
Technologies you’ll use the most (required):
What you’ll own:
You’re someone who loves building mobile apps that feel extraordinary and not just functional. You understand how to design mobile architectures that scale, how to move quickly in early-stage environments, and when to invest in polish or performance.
You think like a product engineer and care deeply about the quality and feel of every interaction.
Your Qualifications
In addition to being part of a great team and working in a really fun and innovative environment, we offer:
At Light, we’re building the most trusted financial platform in the world — and trust shows up in every tap, transition, and interaction. As part of the early mobile team, you’ll define how next-gen finance feels on mobile.
Join the rocket ship while it’s taking off 🚀
Light exists to replace factory-era ERPs with software that feels alive. Our Smart Financial Platform gives modern, global companies superpowers—automated accounting, real-time reporting, and financial flows that move at the speed of the business.
We build with our customers, ship fast, and obsess over craft. In a short time, Light has gone from idea to the operating core for leading companies like Lovable, Legora, and Keyshot. People don’t just use Light - they find it joyful.
We’re an early team defining a new software category. Think engineers who love debits and credits, designers who care about reconciliation states, and operators who treat finance as a product. If you’re excited to modernize how the world runs money—one workflow at a time—you’re in the right place.
Backed by world-class investors and advised by industry titans, we’re building category-defining products with the freedom to ship ambitiously and own outcomes.
Come help us make Light the global default for next-gen finance.
Mobile Developer (React Native iOS/Android)
Early Team
- Product-Defining Role
This is a hands-on, product-centric engineering role. You’ll work closely with design, product, and backend teams as we expand the depth and breadth of our mobile offering. Your initial focus will be on iOS, with Android expansion planned for Q1 2026.
You'll join our mobile team in its defining phase, with direct influence on architecture, roadmap, and engineering culture. You'll help shape the app to reach our targets for usability, reliability, and craftsmanship across Light's mobile platform.
Our environment:
Technologies you’ll use the most (required):
- Mobile application built using React Native and Expo
- GitHub workflows and Expo workflows for CI/CD
- Sentry / Datadog for observability, crash reporting, and performance monitoring
- Backend API written in Kotlin
- Web application in TypeScript / Next.js
What you’ll own:
- Help evolve our existing React Native + Expo iOS application by improving architecture, performance, and reliability
- Help establish strong mobile engineering best practices: code structure, testing strategy, automation, tooling, and observability
- Build mobile-first workflows that make complex financial tasks simple, fast, and delightful for users
- Collaborate with design and product to deliver a polished, intuitive mobile experience
- Work closely with backend engineers to shape API designs that work well on mobile
- Support the release process: CI/CD pipelines, Expo workflows, rollout strategies, and automation
- Help us release an Android version of the application and ensure the codebase is ready for cross-platform growth
- Troubleshoot production issues and improve performance, stability, and error handling
- Contribute to our mobile roadmap and long-term product vision
You’re someone who loves building mobile apps that feel extraordinary and not just functional. You understand how to design mobile architectures that scale, how to move quickly in early-stage environments, and when to invest in polish or performance.
You think like a product engineer and care deeply about the quality and feel of every interaction.
Your Qualifications
- 5+ years of professional mobile development experience
- 3+ years of hands-on React Native experience in production environments
- Experience maintaining, improving, or scaling production mobile applications
- Strong understanding of mobile architecture, async data flows, and real-world edge cases
- Pragmatic decision-making — ability to balance short-term delivery with long-term maintainability
- Comfortable collaborating across design, backend, and product to shape mobile-first experiences
- Strong communication skills with the ability to explain technical decisions clearly
- A product mindset — desire to make complex financial tasks simple, fast, and delightful
- Experience designing mobile system architecture from scratch or at scale
- Launched consumer apps with 4.5+ star ratings
- Experience shipping Android apps with React Native
- Exposure to backend APIs (Kotlin) or web (TypeScript/Next.js)
- Familiarity with observability tools like Sentry or Datadog
- Experience with CI/CD for mobile (GitHub workflows, Expo EAS)
- We're looking for an architect, not an interior designer — someone who can design robust systems and see the big picture, not just polish existing features. Show us how you've made high-level architectural decisions and the trade-offs you considered.
- Demonstrate your product thinking by showing how you elevate UX, not just code
- Walk us through architectural decisions and the trade-offs behind them
- Bonus: show us your philosophy on mobile architecture and craftsmanship
In addition to being part of a great team and working in a really fun and innovative environment, we offer:
- 💸 Competitive salary + stock options in our fast-growing startup
- 🍼 Paid parental leave
- 🏝 25 days of annual leave + public holidays (in your country)
- 🥳 Regular socials and company off-sites
- 🚀 A huge opportunity to shape a market-defining product and engineering culture
At Light, we’re building the most trusted financial platform in the world — and trust shows up in every tap, transition, and interaction. As part of the early mobile team, you’ll define how next-gen finance feels on mobile.
Join the rocket ship while it’s taking off 🚀
Key Skills
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Join Light and take your career to the next level!
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