React Jobs - January 2026
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Stealth PropTech Startup
Founding Full-Stack Engineer
Posted 5 months, 2 weeks ago
Contract-to-hire role for a Founding Full-Stack Engineer to build a high-performance, gamified "Command Center" web app (not a CRUD app) featuring a dynamic AI companion. Work includes turning an MVP concept into a secure, living product with strong micro-int…
Tech stack
Location
Boston, MA, Remote
Compensation
Contract-to-hire. Paid MVP project with competitive market rate plus equity; successful contractor becomes the Founding Engineer.
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Farmgirl Flowers
Senior Software Engineer
Posted 5 months, 3 weeks ago
Director of Engineering at Farmgirl Flowers seeking a product-minded Senior Software Engineer to own projects end-to-end, keep systems simple, safe, and maintainable. Small team of three, emphasis on pragmatic shipping over perfection. Stack includes Rails 8,…
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Valis Insights
Software Engineer
Posted 5 months, 3 weeks ago
Hi, I'm Caleb (co-founder/CTO) from Valis Insights. We're a small climate-tech B2B SaaS/HaaS startup, based out of MA. We build material sampling, sorting analytics, and material monitoring web-based and hardware/computer-vision enabled solutions for metals r…
Roles
Tech stack
Location
Remote-first hybrid, Worcester, MA
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Layer Health
Data Infra Lead Engineer
Posted 5 months, 3 weeks ago
Layer Health (founded 2023) is an AI/ML company building an LLM-powered platform to synthesize information from medical records. Headcount ~35, Series A funded. Engineering stack includes React, Typescript, Python, and GCP. Locations are Boston (Boston Common…
Roles
Location
Boston, MA, New York, NY
Compensation
Competitive base salary + equity, health/medical benefits, unlimited PTO
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Join
Staff Software Engineer (full-stack)
Posted 5 months, 3 weeks ago
Hiring full-stack Staff Software Engineer to build a React + Go + Postgres B2B SaaS collaboration platform for construction teams (contractors, owners, architects). Role is fully remote (US & Canada); at least one hire needs deep frontend/React expertise. Sub…
Location
Remote (US & Canada)
Compensation
Salary is $175k–$205k + equity + full benefits, fully remote.
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Kato
Senior Software Engineer
Posted 5 months, 3 weeks ago
Kato is building a compliance-first AI servicing platform for the lending market, focused on regulatory rules and an AI decision engine. Their first product is a Voice AI agent handling loan servicing calls for major fintechs. Backed by Pear VC and angel inve…
Roles
Tech stack
Location
San Francisco, CA