Principal Software Engineer, AI Platform

Valence; New York (NY); Hybrid; USD 180,000 - 280,000; Full time

Job summary

Valence is hiring a Principal Software Engineer, Product to architect, build, and scale backend systems and user-facing experiences for our AI-native coaching platform. You will ship features end-to-end—from designing APIs and integrating models to delivering polished browser interfaces—working closely with product, design, and infra teams.

You will help evolve engineering culture, tooling, hiring, and the technical roadmap as the team grows, while delivering resilient experiences to enterprise

Qualifications

• Strong full stack experience shipping production-grade systems end-to-end.
• Experience with Python (Django preferred) or similar backend languages.
• Frontend craftsmanship with React or Vue and responsive UI.
• Enterprise-grade thinking: scale, performance, security, and maintainability.
• Builder at heart with ability to prototype and iterate quickly.

Responsibilities

• Build and extend critical backend services: architect APIs, integrate LLMs, optimize server-side systems.
• Develop polished frontend experiences: intuitive UI, accessibility, responsive design, data flow between layers.
• Own end-to-end delivery: scope, tests, deployment, monitoring in production.
• Collaborate across product, design, data and infrastructure to solve real user problems.
• Drive best practices: CI/CD automation, observability, and performance benchmarking.
• Mentor team members through code reviews and scalable practices.

Skills

Full stack

Python

Django

JavaScript

React

Vue

Frontend UX

Security

Tools

CI/CD

Observability

APIs

Job description

Valence is hiring a Principal Software Engineer, Product to architect, build, and scale backend systems and user-facing experiences for our AI-native coaching platform. You will ship features end-to-end—from designing APIs and integrating models to delivering polished browser interfaces—working closely with product, design, and infra teams.

You will help evolve engineering culture, tooling, hiring, and the technical roadmap as the team grows, while delivering resilient experiences to enterprise