Senior backend typescript developer

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. The human genome is one of the most valuable and underutilized resources in the world. 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.

The Position

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. When you do this well people get fast reliable personalized health insights from their genome instead of slow or broken experiences.

The Impact

• 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.

Dominant and Expressed Traits

• 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 Overview

• 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)

Join Sequencing

Redefine how people understand themselves through their DNA. Build category-defining products alongside scientists, engineers, and innovators. Contribute to technology that will improve and extend millions of lives. Shape one of the most important emerging categories in AI and healthcare.

Sequencing Inc. is an equal opportunity employer. All aspects of employment, including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate based on race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, veteran status, or any other status protected under federal, state, or local law.

Sequencing Inc. may use artificial intelligence (AI) or automated tools as part of the recruiting and hiring process, including for application screening and candidate evaluation. These tools may analyze information provided in your application materials or during the hiring process. Where required by applicable law, candidates may request a reasonable accommodation or an alternative selection process by contacting joinus@sequencing.com.