Senior Engineer, Core

Senior Engineer, Core ABOUT US We’re building the world’s leading cross-border fintech for emerging markets - empowering families, fueling local economies, and changing how millions access financial services. Since our launch in 2019, we have transformed how money moves across borders with our operations spanning 6 out of 7 continents and covering both the busiest and most underserved (remittance) corridors. We tapped into a massive shift - from banks to phones - bringing digital finance to places where traditional systems never reached. The next stage of growth will fuel a network of services and products especially designed to make money more accessible to diaspora communities including local cards, and additional savings and payments features. We’re growing fast, backed by world-class investors, and scaling a product that blends real world impact with cutting edge fintech innovation. Here’s a little more: - Founded by Harvard grads and 3-time founders who previously built Segovia (acquired) and GiveDirectly (>$300M revenue, fastest-growing NGO in the world) - Backed by top investors including Spark Capital, Canaan, Reid Hoffman, Breyer Capital, Unbound, Wamda, and more - Built by global top performers from Bain, Google, McKinsey, Uber, Checkout, Bolt, and beyond - we move fast, stay humble, and care deeply about our mission - Truly global team - 250+ people, 50+ nationalities, 50+ languages - Guided by our values - ownership, impact, humility, and heart - in deed, not just word The Role We are looking for a Senior Product Engineer to join our growing engineering team to define, build and iterate on features for our consumer-facing product. You will work closely with Product, Operations, Customer Support, Growth and other functions to design and build a reliable, intuitive, and simple experience for our users. As an early member of the team, we hope you will also have a lot of impact on our team culture, processes and norms. Taptap Send is a cross-platform mobile app developed with React Native and TypeScript, which talks to a backend service written in Kotlin and backed by a PostgreSQL database, all of which runs on AWS and is managed via Terraform and Ansible. This is a frontend-focused role, but you will have plenty of opportunities to work on all parts of our tech stack. We’re an encouraging environment that values both teamwork and autonomy, and have many exciting upcoming challenges, including: scaling up to handle increased volume and complexity, improving UI and UX to drive growth and retention, building internal tools for our customer support and acquisition efforts, and much more! Your Responsibilities - Take ownership of development of mobile application products - Build experiences across the stack using React Native and Spring - Write well-tested, high quality code, with an eye towards generics and re-use - Work closely with design and product teams to regularly ship working features - Participate in release planning and deployment of released build - Mentor and advise team members - Evaluate and deliver timeline estimates for projects Requirements - 5+ years of professional experience building consumer facing applications - Experience owning user-facing features end-to-end, from conception to launch - Experience developing software in a collaborative, multi-functional, and fast-paced environment - Expertise building, maintaining, or working with a shared component library - Proficiency with React or React Native - Experience working on systems that have real-world performance and reliability constraints - Strong communication and ability to manage conflicting priorities, setting expectations with stakeholders and be a driving force Ideally - Experience with native code, libraries, or SDKs  on iOS or Android - Experience working on a multi-platform mobile app with a significant volume of traffic - High personal code/development standards (code review, unit testing, documentation ... (truncated, view full listing at source)