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Kepler is hiring a
Full Stack Engineer

About Kepler

We're building the trust layer for AI in high-stakes industries. The LLM orchestrates (decides what data to gather, what to compute, how to structure the output), but the model never touches the data itself. Every actual value flows through deterministic code pipelines with provenance metadata back to source. Verification loops cross-check outputs before users see them. We started in finance because tolerance for wrong answers is zero. First product is a research platform for buy-side analysts: pull comparables, build models, research filings. Same architecture extends to chemicals, legal, healthcare. Models are commoditizing fast; the trust layer is what's missing. In-office NYC.

Job Description

You will build the source-explorer UI, data extraction and provenance pipelines, and the agent orchestrator that handles partial failures to avoid blocking parallel work. Responsibilities include implementing verification rules, and ensuring correctness across multiple sources. Stack: Rust backend (orchestration, extraction, computation), TypeScript/React frontend, PostgreSQL, AWS. Distributed systems fundamentals like concurrency, fault tolerance, retries, and idempotency are important. We are looking for someone with 5+ years of production experience, strong in TypeScript/React, and comfortable with backend work. Equity is part of compensation. This is an in-office NYC role.

Location

New York, NY

Salary

230K

Β toΒ 

260K

Benefits

equity

Tech Tags

Equity Offered

Senior Role

Date Listed

01 June, 2026 (6 days ago)
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