Fullstack Software Engineer
Company: Confidential
Location: New York
Type: Full-time
Posted: 2026-06-24
About this role
About
We are on a mission to revolutionize B2B payments. We’re a well-funded, early-stage startup operating in stealth mode, building cutting-edge solutions that will transform the way businesses move money. If you’re excited about tackling big problems from the ground up, we want to hear from you.
As we grow, we are looking for a
Fullstack Software Engineer
to join our Platform team and help build the core infrastructure that powers our payment solutions. You’ll work on challenging technical problems while contributing to the foundation of our technology stack.
About The Role
As a Fullstack Software Engineer, you will be pivotal in designing, building, and maintaining web applications and the APIs that power them. You’ll focus on crafting intuitive, secure, and responsive UIs while architecting backend systems that support large-scale financial transactions with real-time processing capabilities.
In an agile environment, you’ll report to the Engineering Manager and work alongside a cross-functional team of engineers, designers, and product managers. This role is ideal for someone who enjoys working across the stack, thrives in early-stage environments, and is passionate about building secure, compliant financial technology.
Key Responsibilities
- Frontend Development: Build and maintain modern, responsive, and secure web applications using ReactJS with TypeScript, focusing on performance and accessibility.
- UI Frameworks: Leverage React-based libraries to create enterprise-grade UI components that meet financial industry standards.
- Backend Development: Design, build, and maintain RESTful APIs and GraphQL endpoints.
- Database & Data Management: Design efficient data models and work with SQL and NoSQL databases to securely handle transactional and analytical workloads.
- Real-time Systems: Implement websockets, message queues, and event-driven architectures to support real-time payment processing and notifications.
- Testing & Quality: Writ...