Senior Backend Typescript Developer

Role Description

As a Senior Backend TypeScript Engineer, you build and maintain the high-performance backend services that power our core personalized health experiences. You work side by side with other senior engineers to build and grow scalable infrastructure APIs and event-driven services.

• Design, build, and maintain performant backend services in TypeScript that power our core personalized experiences.
• Build and grow scalable infrastructure APIs and event-driven services that deliver data-driven features to users.
• Support and optimize production-ready backend systems so they stay fast and dependable under load.
• Integrate and manage services such as PostgreSQL, MySQL, AWS SQS, and Centrifugo in the backend.
• Make systems reliable, secure, and observable so people can trust their DNA data is safe.
• Own and drive end-to-end feature development with a strong eye on user experience.
• Write clean, reliable code with performance and maintainability in mind from the start.
• Champion clean code, technical excellence, and continuous improvement across the team.
• Debug, test, and performance tune across services to catch problems before users feel them.
• Maintain, modernize, and migrate legacy code so older systems keep up with new demand.
• Take ownership of complex problems and drive them to a clear working solution.

Qualifications

• 5+ years of backend development experience.
• Expert with TypeScript and comfortable owning production backend services.
• Experience with functional programming.
• Deep hands-on experience with PostgreSQL, MySQL, and service-based architectures.
• Strong debugging, testing, and performance tuning skills.
• Able to work independently while collaborating closely with key teammates.
• Customer-driven with a passion for building systems that deliver exceptional experiences.
• Nice to have: familiarity with genomics, health data, or personalization systems; startup or fast-paced environments; or Rust.

Benefits

• Comprehensive medical, dental, and vision insurance coverage.
• 401(k) with company matching.
• Paid time off (PTO).
• Paid volunteer time off.
• Fully remote work with home office stipend.
• Parental bonding leave.
• Clinical-grade whole genome sequencing for you and your family (private and confidential).

Company Description

Sequencing is building the interface between humanity and its DNA. Using clinical-grade whole genome sequencing, AI, and a rapidly expanding ecosystem of genomic applications, we help people better understand themselves, their health, and their future through their DNA. Our mission is to transform the human genome into a lifelong source of personalized guidance and build the trusted home for every genome on Earth.

As the world’s largest direct-to-consumer whole genome sequencing platform, Sequencing is helping define the future of AI-powered personalized health. We’re a profitable, venture-backed, fully remote company building category-defining products that help people better understand themselves through their DNA.