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109 founding engineer jobs at 72 companies in Bohemia, NY

1mo
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Founding Engineer
New York City, New York, United States
$125k-$225k/yr OnsiteFull Time
Clusia
Clusia: AI-native assurance firm completing audits and independent testing for fintechs, banks, and other companies that move money.
Hands-on experience with LLMs and production AI, full-stack product engineering, cloud infrastructure, deployment and observability, and strong product-minded execution.
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4d
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Founding Engineer
New York City, New York, United States
$150k-$300k/yr OnsiteFull Time
Asymptote Labs
Asymptote Labs: AI security giving enterprises telemetry, detection, and response controls for agent activity.
5+ YOE5+ years building production software, infrastructure, developer tools, data platforms, or distributed systems; strong backend, distributed systems, databases, APIs, architecture, and product engineering skills.
Beacon, MCP, eBPF
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17h
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Founding Engineer
New York City, New York, United States
$170k-$220k/yr OnsiteFull Time
Clera
Clera: AI-powered talent agent matching candidates to startup roles.
5+ YOE5+ years shipping production software or equivalent 0-to-1 experience; expertise in LLM applications, agentic systems, distributed backends, full-stack development, infrastructure automation, and rapid startup product delivery.
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3mo
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Founding Engineer
New York City, New York, United States
$170k-$200k/yr OnsiteFull Time
Alden Labs
Alden Labs: Private AI healthcare software serving home care agencies with agents that automate coordination, scheduling, and communications.
3+ YOEFull-stack software engineer with 3+ years, skilled in React/NextJS, Express, PostgreSQL; strong ownership; healthcare and AI interest; able to ship features end-to-end.
React, NextJS, Express, PostgreSQL
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4d
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Founding Engineer
New York City, New York, United States
OnsiteFull Time
Andreessen Horowitz
Andreessen Horowitz: Private venture capital firm investing in startups from seed through growth stages and helping founders build companies.
3+ YOE3+ years of engineering experience, Python and TypeScript proficiency preferred, strong data modeling fundamentals, fast product delivery, sound judgment with coding agents, and ability to learn from feedback.
Python, TypeScript
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1mo
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Founding Engineer, Open Source
New York, New York, United States
$225k-$300k/yr OnsiteFull Time
Datalab
Datalab: Document intelligence research lab that trains models and provides enterprise document-processing infrastructure for AI labs and businesses.
5+ YOE5+ years building production software, strong open-source contributions, fluent in Python, experience creating technical content and engaging developer communities.
Python, GitHub, Discord, X, Reddit, marker, surya, chandra, lift, SDK, API, YouTube, Twitch, OCR
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2mo
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Senior / Staff Founding Engineer
New York City, New York, United States
$250k-$320k/yr OnsiteFull Time
Rovi Health
Rovi Health: AI healthcare concierge and virtual clinic helping employees in self-funded health plans access better-value care.
8+ YOE8+ years building software with deep experience in Python, React, and TypeScript; ownership of products end-to-end; production AI/ML and LLM/agent experience; systems and scale experience; healthcare/fintech a plus.
Python, React, TypeScript, LLM
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1mo
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Founding GTM Engineer
New York, New York, United States
HybridFull Time
Hearth
Hearth: Financial software platform for home improvement contractors
Proven track record moving revenue metrics, building GTM systems, shipping production integrations; familiarity with Salesforce/HubSpot, Redshift, Python, SQL and AI-driven workflows.
Salesforce, HubSpot, Redshift, Clay, Python, SQL, Claude
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1mo
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Founding Engineer
New York City, New York, United States
$150k-$180k/yr OnsiteFull Time
Company Ventures
Company Ventures: Private early-stage venture capital firm investing in technology startups and supporting founders through its residency and venture studio.
Proven experience building systems from scratch, owning architecture and data pipelines, strong technical judgment, high ownership, comfort with ambiguity, and interest in healthcare and AI-driven products.
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3d
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Founding Engineer
New York City, New York, United States
$125k-$175k/yr OnsiteFull Time
Ceno Group
Ceno Group: US fintech brokerage giving retail investors access to Korean and Japanese equities and cross-border financial services.
5+ YOE5+ years building and operating production backend systems; fluency in Go, TypeScript, Python, Java, or Rust; experience with data infrastructure, scalable systems, testing, observability, and incident response.
Go, TypeScript, Python, Java, Rust, PostgreSQL, Redis, Interactive Brokers, Apex, DriveWealth, Alpaca, FIX
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3mo
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Founding Engineer
New York, New York, United States
$140k-$500k/yr OnsiteFull Time
Rehearsals Research
Rehearsals Research: AI customer-simulation platform that helps marketing teams predict consumer behavior with digital twins of real people.
3+ YOEBachelor's in CS/Math/Physics or equivalent; 3+ years; proven shipping software; ability to work in NYC in-person.
TypeScript, Next.js, React, CI/CD, data scraping, infrastructure tooling
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3mo
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Founding Engineer
New York, New York, United States
HybridFull Time
Jetty
Jetty: Private AI health software helping people with chronic symptoms track patterns and prepare for medical care.
3+ YOE3–8+ years of software product experience; strong backend, end-to-end product shipping; familiarity with APIs, data models, CI/CD, observability; startup mindset; privacy-focused health tech experience bonus.
Go, Rust, Java, Swift, Frontend
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2w
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Founding Engineer - NYC
New York City, New York, United States
$175k-$250k/yr OnsiteFull Time
Corridor
Corridor: AI-native health insurance brokerage helping small businesses choose, enroll in, and manage employee benefits.
Demonstrated technical ownership, high-stakes systems judgment, sound decision-making with incomplete specifications, production shipping velocity, and strong Python and TypeScript proficiency.
Python, TypeScript, React, MCP, LLM
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3mo
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Founding AI Engineer
New York City or United States
$160k-$220k/yr OnsiteFull Time
Nolla Health
Nolla Health: AI-guided digital-health offering dermatological skincare and telehealth services.
4+ YOE4+ years backend, platform, or product engineering; ships own projects; strong TS and Python; AI tooling experience; small team experience; ability to scope and ship.
TypeScript, Python, Node.js, PostgreSQL, AWS, OpenAI API, Anthropic API, EMR systems, Eval frameworks
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3mo
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Founding Sales Engineer
Boston or London or New York City
HybridFull Time
Clarasight
Clarasight: AI-native corporate travel and expense operating system serving enterprise travel and expense leaders.
Hands-on technical seller leading enterprise deals; prototypes integrations; helps shape scalable presales.
Python, JavaScript, Demos, Prototyping
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3mo
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Founding Engineer
New York City, New York, United States
$150k-$250k/yr OnsiteFull Time
Pascal
Pascal: N AI software serving consumer packaged goods brands with data foundations and operational agents.
3+ YOE3+ years engineering experience, cross-stack technical design, production debugging, customer-driven problem solving, familiarity with large-scale data and agentic workflows.
GCP, Terraform
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2mo
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Founding Engineer
New York City, New York, United States
$150k-$250k/yr OnsiteFull Time
Pascal
Pascal: N AI software serving consumer packaged goods brands with data foundations and operational agents.
3+ YOE3+ years engineering experience across server- and client-side languages; cross-stack design, production debugging, customer technical engagement, and delivering infrastructure and agent-based solutions.
GCP, Terraform
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1w
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Founding Engineering Team
New York City, New York, United States
$200k-$280k/yr OnsiteFull Time
Altis
Altis: Venture intelligence platform helping investors make faster decisions on Series A/B/C companies through primary research.
Track record shipping adopted software, ownership of delivery timelines, strong technical and non-technical communication, and experience with AI-native, LLM- or RAG-powered products. Engineering leadership experience is preferred.
AI, LLM, RAG, API, MCP
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1w
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Founding Software Engineer, Full-Stack & Platform
Boston or New York City
$160k-$190k/yr HybridFull Time
Vincer
Vincer: AI decision-support software gives life sciences and medtech sales teams continuous field guidance and manager reinforcement.
5+ YOERequires 5+ years of full-time software engineering experience, full-stack development with strong backend/API/platform skills, real-time or low-latency systems experience, and end-to-end cloud infrastructure ownership.
CRM, Veeva, Salesforce, Slack, Microsoft Teams
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1mo
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Founding GenAI Engineer
New York City, New York, United States
$150k-$220k/yr OnsiteFull Time
Arbor
Arbor: AI research platform that conducts voice interviews with frontline employees and customers, delivering operational intelligence to enterprises.
Experienced engineer with strong fundamentals, hands-on LLM work, production systems experience, proficiency in Python and TypeScript, and end-to-end product ownership.
LiveKit, Pipecat, Twilio, Deepgram, ElevenLabs, OpenAI, Anthropic, Google Gemini, Python, FastAPI, TypeScript, React, WebRTC, STT, TTS
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