Backend Engineer

Ketryx•Boston, MA

5d•$130,000 - $150,000•Hybrid

About The Position

Join us in an exciting opportunity as a Backend Engineer, where you will become an integral part of an extraordinary team of engineers dedicated to shaping the future of software at Ketryx. In this dynamic role, you will contribute to a small, highly motivated team, actively steering projects to successful completion. In this role, you will play a pivotal role in shaping the technological landscape, assuming ownership of critical technology decisions and roadmaps. With a self-starting attitude and a robust hands-on mentality, you will be at the forefront of tackling complex problems and driving innovation. Embracing agile working models, you will foster ideation, envision future possibilities, and address detailed improvements concurrently, contributing to Ketryx's commitment to reinventing how medical device manufacturers bring life-saving innovations to market. If you're reliable, detail-oriented, and ready to contribute to a global team, you could be a part of our mission to create safe and reliable medical software!

Requirements

Ability to work in a fast-moving startup environment, taking ownership of features and pushing them forward
3+ years of full-time industry experience building production web applications, with a focus on backend development
Solid skills in TypeScript
Experience with PostgreSQL or a comparable relational database: schema design, writing efficient queries, and basic performance tuning
Working knowledge of React, enough to build and modify UI for the features you own
Solid understanding of backend maintainability, including refactoring and managing technical debt
Comfortable collaborating across teams in English and participating in technical discussions and design review.

Nice To Haves

Experience with Prisma and Next.js
Experience with GraphQL (urql or Apollo)
Familiarity with AWS services like S3, RDS, and ECS
Familiarity with Docker in production or near-production environments
Strong testing habits (Vitest, Playwright, Cucumber)
Prior experience with logging and observability tools such as Datadog, AWS CloudWatch, or Sentry
Experience building AI-related features, particularly for large language models
Experience working in regulated industries like healthcare or finance.

Responsibilities

Build features end to end — API design, business logic, and integrations between the Ketryx platform and external systems and workflows.
Contribute to improving latency, throughput, and fault tolerance across the backend stack.
Design and evolve PostgreSQL schemas, write efficient queries, and apply indexing strategies to keep the database performant as the product grows.
Write clean, well-tested code and contribute to standards around migrations, documentation, and testing.
Participate in monitoring, debugging, and incident response.
Help identify performance bottlenecks and reliability issues, and contribute fixes.
Take features across the finish line in our React/Next.js frontend — you won't own the design system, but you should be comfortable building the UI for the backend work you ship.
Engage directly with customers, collect feedback, and shape product features with designers, product managers, and the Boston team (Pre-Sales, Sales, Post-Sales, Marketing).
Provide technical support to customers alongside Client Operations.