65 founding software engineer jobs at 42 companies in Bohemia, NY
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Founding Software Engineer, Full-Stack & Platform
Boston or New York City
$160k-$190k/yrHybridFull Time
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.
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.
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.
Clera: AI-powered talent agent matching candidates to startup roles.
3+ YOE3+ years of software engineering experience, production AI/ML experience, Python and TypeScript proficiency, data modeling and scalable systems expertise, and early-stage startup experience.
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.
Rollout: Private software providing a universal API for real-estate and mortgage CRMs, transaction systems, and loan-origination systems.
Fluency with modern AI coding tools, solid CS fundamentals, ability to ship software, fast learner, strong communication, and willingness to work in person with customers.
4+ YOE4+ years building backends and user interfaces for scientific or engineering software, with experience validating computational output at scale and deploying models. Requires scientific curiosity, communication, and agentic engineering skills.
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.
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.
Continual Research: AI-native hedge fund building automated investment research and strategies for retail and institutional investors.
2+ YOERequires 2–5 years building and shipping at an early-stage tech startup or quant fund, with production systems experience in distributed pipelines, data platforms, low-latency services, or ML infrastructure.
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.
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.
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.
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.
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.
Ambral: AI customer-success platform for businesses that monitors accounts, identifies churn and expansion opportunities, and automates follow-up actions.
4+ YOE4+ years building production software or ML systems, including 2+ years with RL environments or evaluation/agent infrastructure; strong software engineering, data processing, reproducibility, and evaluation skills.
Neptune: Lawyer-led online prenup and financial-planning platform helping couples navigate legal and financial decisions with vetted independent experts.
3+ YOE3–6 years full-stack experience, AI-native mindset, strong product orientation, ability to own features end-to-end; experience with LLMs and shipping production software.