remoteonsite
Backend Developer - kwill
Backend Engineer
Backend Developer focused on building robust, high‑throughput services for real‑money transactions using TypeScript, PostgreSQL, and payment APIs. Own payment, auth, and API layers while ensuring correctness and speed.
About the role
Key Responsibilities
- Design, implement, and maintain production‑grade backend services handling real‑money transactions.
- Own the payment, authentication, and API surfaces, ensuring secure and reliable data flows.
- Integrate with third‑party payment providers and manage webhooks for real‑time event processing.
- Collaborate closely with the founder and senior engineers to shape architecture and delivery cadence.
- Write clean, well‑tested TypeScript code and maintain comprehensive documentation.
Requirements
- 1–2 years of hands‑on experience building production server code in TypeScript.
- Strong knowledge of PostgreSQL schema design and query optimization.
- Proven experience with payment integrations (e.g., Stripe, PayPal) and webhook handling.
- Solid understanding of authentication flows and API security best practices.
- Passion for correctness, performance, and rapid iteration.
Skills
typescriptpostgresql