Companies β€Ί Endgame β€Ί Principal Software Engineer

About the role

Endgame Β· Remote

About Endgame 🌎

Endgame is the context graph for every GTM agent. We process every call, deal, and playbook into structured knowledge that both humans and AI agents can act on β€” 140Γ— faster and a fraction of the cost of throwing raw data at an LLM.

Revenue teams at Monte Carlo, BetterUp, Braze, and dozens of other leading companies use Endgame as their source of truth. Instead of context scattered across fifteen disconnected systems, their reps, managers, and CS teams β€” and the agents working alongside them β€” all operate from the same structured view of every customer and every deal.

We've raised $47.5M from EQT Ventures, Menlo Ventures, Upfront Ventures, and Unusual Ventures, plus executives from Zoom, Stripe, Notion, and Airtable. We're a team of ~25, mostly engineers, and we build production systems with real architecture β€” not prototypes.

How we build πŸ› οΈ

We're an AI-native engineering team. Agentic coding tools are integral to how we build and ship 15-20 times daily, if not more. We build with Claude Code, Cursor, and Copilot, and we're constantly sharing what works and what doesn't. We move fast, we're not afraid to throw things away, and we keep the bar high because customers depend on us. You'll help push that culture forward.

What you'll do πŸš€

  • Build and evolve the MCP server and agent tool surfaces that AI clients use to query Endgame's context graph β€” designing tool schemas, managing context windows, and making sure every tool call returns the right data fast.

  • Ship the frontend features, tRPC routes, and React components that customers interact with daily β€” from admin dashboards to the core product UI.

  • Design and harden the public API layer: authentication, Redis-backed rate limiting, quota enforcement, and the observability to know when something goes wrong.

  • Wire new data sources into the product by integrating with the context graph and making that data available through both human-facing UI and agent-facing tool surfaces.

  • Translate ambiguous product goals into concrete engineering scope, then ship it. You'll work closely with product, design, and the rest of engineering, and you'll often be the person turning a customer pain point into a novel solution.

  • Own end-to-end quality on the surfaces you ship: performance, reliability, security, observability. AI raises the floor, your taste raises the ceiling.

What we're looking for πŸ…

  • Deep understanding of the TypeScript and JavaScript ecosystem. You've built and maintained serious systems in it, not just touched it.

  • Familiarity with Python.

  • Experience designing and implementing LLM and agent tool surfaces, including the tools themselves and the context management around them.

  • Experience developing APIs with a real focus on observability and authentication.

  • Strong product instincts. You can take an ambiguous product requirement and translate it into deliverable engineering scope.

  • Deep experience with agentic coding tools and modern testing practices. You use AI coding tools daily, have opinions about them, and know when to trust the agent versus reading the diff yourself.

  • You default to collaborative action. You write, you share early, you make decisions reversible when you can.

  • Bonus: prior experience with revenue-data systems (Salesforce, CRMs, sales tooling) or developer-platform infrastructure (SDKs, APIs, agent tooling).

Benefits πŸ†

  • Competitive compensation and equity

  • 401k, health, dental, and vision insurance

  • Flexible time off

  • Paid parental leave

  • Education stipend

The qualifications listed in our job descriptions are meant as guidelines, not strict requirements. You don’t need to meet every qualification to applyβ€”if you believe your skills and experience make you a strong candidate, we want to hear from you! Apply directly or reach out to us at hiring@endgame.io.

Ready to apply to Endgame?
Apply to Endgame

Similar jobs

Horizon3 AI
Principal Engineer, Technical Lead
Horizon3 AI
⚑ Apply early US, Remote Β· location restricted $213,000–$273,000
● New πŸ‘ Seen βœ“ Applied 5h ago
Fluidstack
Principal Operations Engineer, Electrical β€” Data Center Operations
Fluidstack
⚑ Apply early U.S. Remote Β· location restricted $150,000–$250,000
● New πŸ‘ Seen βœ“ Applied 5h ago
Fluidstack
Principal Operations Engineer, Mechanical β€” Data Center Operations
Fluidstack
⚑ Apply early U.S. Remote Β· location restricted $150,000–$250,000
● New πŸ‘ Seen βœ“ Applied 5h ago
Fluidstack
Principal Operations Engineer, Controls β€” Data Center Operations
Fluidstack
⚑ Apply early U.S. Remote Β· location restricted $150,000–$250,000
● New πŸ‘ Seen βœ“ Applied 5h ago
Olsson
Principal Engineer - Site Design
Olsson
⚑ Apply early Dallas, TX; Fort Worth, TX; Ok... · location restricted
● New πŸ‘ Seen βœ“ Applied 11h ago
Fluxx
Principal Engineer
Fluxx
⚑ Apply early Remote Β· location restricted $164,000–$210,000
● New πŸ‘ Seen βœ“ Applied 11h ago
Meade
Principal Electrical Engineer
Meade
⚑ Apply early Remote Β· location restricted $164,000–$195,000
● New πŸ‘ Seen βœ“ Applied 12h ago
EDB
Principal Performance Engineer (Database & AI Benchmarking)
EDB
⚑ Apply early Remote Europe · location restricted
● New πŸ‘ Seen βœ“ Applied 12h ago
Block
Principal Security Engineer
Block
⚑ Apply early Bay Area, CA, United States of... Onsite $319,000–$478,600
● New πŸ‘ Seen βœ“ Applied 13h ago

Sign up for suggestions tailored to the jobs you open and the searches you save.

Apply now
πŸ€–

Whoa β€” hold up

JobsRadar was built for real people having a rough time in their job search β€” not for automated requests. You're clicking way too fast and you're now temporarily blocked.

Come back later. If you're genuinely job hunting, we've got your back β€” just act like a human.

Catch your next role the second it’s posted.

Create a free account and we’ll watch the boards for you — the instant a job matches your search, it lands in your inbox or Telegram. No digging, no refreshing.

Create free account

Free forever · takes 30 seconds · already have one?

Get the worldwide-remote edge.

Join our Telegram channel for the stuff that helps you land the role β€” salary benchmarks, the weekly market pulse, and new-feature drops. No spam, just signal.

Join the channel β€” it's free