# Senior Software Engineer

**Company:** [Hinge Health](https://hotfix.jobs/companies/hinge-health)
**Location:** Unspecified
**Role:** ML Engineering
**Experience:** 5+ years
**Skills:** Node.js, TypeScript, LangGraph, LangChain, Langsmith, Nestjs, Aws Bedrock, Claude, RAG, Knowledge Graphs, Segment, Iterable, Distributed Systems, Feature Flags, Github Copilot
**Posted:** 2026-05-29

> Build and maintain production software for a growth data platform, including AI-powered clinical agents, agentic workflows, observability, and retrieval systems. The role requires strong Node.js and TypeScript experience, production delivery skills, and hands-on LLM application development.

## Job Description

## Responsibilities
- Deliver large projects that introduce new product capabilities and maintain key code repositories.
- Break down complex problems into manageable tasks, ensure predictable delivery, and resolve incident root causes.
- Collaborate on technical roadmaps and execute strategies while balancing short- and long-term trade-offs.
- Mentor junior engineers through code reviews and pairing.
- Design and build AI-powered clinical agents using LangGraph.js and stateful multi-node StateGraphs within a NestJS service.
- Integrate LangSmith for AI observability, prompt versioning through LangSmith Hub, per-node tracing, evaluation pipelines, golden datasets, and CI-gated regression checks.
- Develop agentic workflows using Claude Sonnet through AWS Bedrock.
- Contribute to the Member-Centric Knowledge Graph and RAG-based retrieval systems.
- Improve feature maintainability, availability, performance, architecture, and developer tooling.
- Communicate technical ideas clearly and document solutions.
- Implement feature-flag-gated deployments for growth infrastructure changes.
- Write ML model prediction outputs into a customer data platform through Segment custom events for campaign activation in Iterable.

## Requirements
- Bachelor’s degree or equivalent in Computer Science, Engineering, or a related technical field.
- 3–4+ years of non-internship, full-time professional software development experience.
- 3+ years of experience with Node.js and TypeScript.
- Experience delivering large software projects or production features.
- 1+ year of hands-on experience building LLM applications, including prompt engineering, model integration, and AI output evaluation.
- Experience with agentic AI frameworks such as LangGraph, LangChain, or similar orchestration libraries.
- Familiarity with LangSmith or equivalent AI observability and evaluation platforms.
- Experience using AI coding tools such as GitHub Copilot or Cursor.

## Nice-to-haves
- 5+ years of non-internship, full-time professional software development experience.
- Master’s degree in Computer Science, Engineering, or a related technical field.
- Experience with AI technologies for software design and coding assistance.
- Experience mentoring or onboarding junior engineers.
- Familiarity with distributed systems, cloud infrastructure, or scalable architectures.
- Understanding of responsible AI practices, including PHI/PII handling, guardrails, and output validation in healthcare or regulated environments.

## Compensation & Benefits
- Comprehensive medical, dental, and vision coverage.
- Group Medical Coverage, Group Term Life Insurance, and Group Personal Accident Insurance.
- Lifestyle stipend and learning and development opportunities.
- Discounted company stock through an employee stock purchase plan.

## Similar jobs

- [Senior Machine Learning Operations Engineer](https://hotfix.jobs/jobs/102dd624-6c60-41dd-823e-299c080f8b33) - Mercury - Remote - $157k – $208k/yr
- [Senior AI Engineer](https://hotfix.jobs/jobs/21a85bba-83b6-4f06-9c21-2eccd8cb28b4) - OPSWAT - Ho Chi Minh City, Vietnam
- [Senior Software Engineer, NLP](https://hotfix.jobs/jobs/be3f0222-b08a-4620-9ddc-402209ea73f7) - GitLab - Remote
- [Senior Software Engineer](https://hotfix.jobs/jobs/c1cce4bb-f642-43f8-9436-a7d1f7f3fbfe) - Traba - New York, NY - $200k – $240k/yr
- [Senior Applied AI Engineer](https://hotfix.jobs/jobs/4a90a405-edd3-40e0-9afb-1c5b87cfd867) - Front - San Francisco, CA - $205k – $238k/yr

**Apply:** https://hotfix.jobs/jobs/7fdca764-6fc8-46f6-93ba-40081d8d38e0
**Canonical:** https://hotfix.jobs/jobs/7fdca764-6fc8-46f6-93ba-40081d8d38e0