Senior Backend Engineer (+ Equity) at Caplight
Join Caplight as a Senior Backend Engineer to architect the data infrastructure powering private market investing. You will design core systems, develop LLM-driven data pipelines, and build AI-native workflows that bring transparency to billions in live order volume, helping the world's leading institutional investors make high-stakes decisions with real-time intelligence.
About the role
Join Caplight as a Senior Backend Engineer to architect the data infrastructure powering private market investing. You will design core systems, develop LLM-driven data pipelines, and build AI-native workflows that bring transparency to billions in live order volume, helping the world's leading institutional investors make high-stakes decisions with real-time intelligence.
Responsibilities
- Design and own core backend systems and APIs that ingest, structure, and enrich fragmented data using LLM-powered pipelines.
- Develop and maintain an MCP server to enable institutional clients to interact with private market data through AI-native workflows.
- Collaborate with the CTO on system design, evolving the architecture toward modular services that support institutional-grade speed and reliability.
Requirements
- 4+ years of backend-focused experience, ideally at an early-stage startup, with deep proficiency in TypeScript or typed functional languages like Rust or Haskell.
- Proven track record of shipping production-grade systems and contributing to high-level architectural decisions rather than just implementing feature specs.
- Local to the San Francisco Bay Area and excited to work in a high-velocity, in-person environment at least 3 days per week.
Qualifications
- Strong problem-solving skills and ability to work independently and collaboratively.
- Experience with modern AI tooling and advanced data pipelines.
- Knowledge of modular, event-driven architectures.
Skills
- Proficiency in TypeScript or typed functional languages like Rust or Haskell.
- Experience with LLM-powered data pipelines.
- Understanding of modular, event-driven architectures.
Benefits
- Cash-flow positive startup in San Francisco.
- Opportunity to work on cutting-edge technology and infrastructure.
- High-ownership role working directly with the CTO.
- Collaborative and supportive team environment.
Pay
Not Disclosed + Equity
Schedule
Full-time
Company Description
Caplight is a seed-stage, cash-flow positive fintech startup in San Francisco building the "Bloomberg Terminal for private markets" to provide institutional-grade data and trading infrastructure for VCs and leading global investors.
Why this role is remarkable
- Build the "Bloomberg Terminal for private markets" for a cash-flow positive startup already handling billions in live order volume for top-tier institutional investors.
- High-ownership role working directly with the CTO to evolve a modular, event-driven architecture using modern AI tooling and advanced data pipelines.
- Join a fast-moving, 15-person team in San Francisco where your technical decisions will directly shape the execution infrastructure modern VC investing runs on.
What You Will Do
- Design and own core backend systems and APIs that ingest, structure, and enrich fragmented data using LLM-powered pipelines.
- Develop and maintain an MCP server to enable institutional clients to interact with private market data through AI-native workflows.
- Collaborate with the CTO on system design, evolving the architecture toward modular services that support institutional-grade speed and reliability.
The Ideal Candidate
- 4+ years of backend-focused experience, ideally at an early-stage startup, with deep proficiency in TypeScript or typed functional languages like Rust or Haskell.
- Proven track record of shipping production-grade systems and contributing to high-level architectural decisions rather than just implementing feature specs.
- Local to the San Francisco Bay Area and excited to work in a high-velocity, in-person environment at least 3 days per week.
Jack & Jill
Jack is an AI that gets to know you on a quick call, learning what you're great at and what you want from your career. Then he helps you land your dream job by finding unmissable opportunities as they come up, supporting you with applications, interview prep, and moral support.
Jill is the AI Recruiter working for the company. She recruits from Jack's network, making an introduction when she spots an excellent candidate.
How this works
- Jack is an AI agent for job searching and career coaching. He works for you.
- Jill is the AI recruiter working for the company. She recruits from Jack's network.
- If it's a match and the company wants to meet you, they'll make the intro.
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- We never post fake jobs. This isn't a trick. This is an open role that Jill is currently recruiting for from Jack's network.
- Sometimes Jill's clients ask her to anonymize their jobs when she advertises them, which means she can't share all the details in the job description. We appreciate this can make them look a bit suspect, but there isn't much we can do about it.
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