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37 founding software engineer jobs at 34 companies in Paramus, NJ

3mo
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Founding Software Engineer
New York, New York, United States
$150k-$200k/yr OnsiteFull Time
Avallon
Avallon: AI agents automating insurance claims operations for carriers.
4+ YOE4+ years building production software; TypeScript and SQL; high ownership; founding role; NYC-based or willing to relocate.
TypeScript, SQL
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3mo
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Founding Engineer
New York City, New York, United States
$130k-$200k/yr OnsiteFull Time
Ficus
Ficus: Fintech startup building payout infrastructure for life insurance.
Founding engineer with full-stack skills; ownership of product and infra; experience with backend systems, APIs, security, and regulated financial workflows.
Backend, Frontend, APIs, Databases, Cloud
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2mo
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Founding Engineer
New York City, New York, United States
$170k-$200k/yr OnsiteFull Time
Alden Labs
Alden Labs: Frontend and backend software building AI-powered care coordination infrastructure.
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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2mo
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Founding Software Engineer, Platform
New York City, New York, United States
$190k-$260k/yr HybridFull Time
GovWell
GovWell: Automates permitting and licensing for local government agencies
5+ YOE5+ years backend/infrastructure/platform experience; strong distributed systems; ownership of CI/CD, observability, incident response; proficient in Node/TypeScript; startup-oriented operator.
AWS, Kubernetes, Datadog, GitHub Actions, React, TypeScript, Node.js, GraphQL, PostgreSQL, RedwoodJS, OpenAI API
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2mo
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Founding Engineer
New York, New York, United States
$140k-$500k/yr OnsiteFull Time
Rehearsals
Rehearsals: Simulates consumer behavior using AI replicas for business decisions.
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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2mo
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Founding Engineer
New York, New York, United States
HybridFull Time
Jetty
Jetty: AI-powered functional health doctor and coaching platform.
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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3mo
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Founding Engineer
New York, New York, United States
$160k-$200k/yr OnsiteFull Time
Kinetic
Kinetic: Fintech startup providing consumer financial services
Full-stack engineer with product judgment, startup experience, and ability to work autonomously; AI-assisted coding mindset.
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2w
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Founding Engineer
New York City, New York, United States
$150k-$200k/yr OnsiteFull Time
Neptune
Neptune: Legal technology platform for prenuptial and estate planning.
3+ YOE3–6 years full‑stack engineering experience, AI-native, strong product and communication skills, experience shipping production features and building LLM-powered workflows.
LLMs, React, TypeScript, TanStack, Plaid
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3mo
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Founding Technical Leader (CTO/Founding Engineer), Orbital
New York City, New York, United States
HybridFull Time
25 Madison
25 Madison: Incubates and invests in early-stage AI and SaaS startups.
Founding technical leader with hands-on system architecture, real-time data pipelines, and product-facing software; ability to hire and lead early engineering team.
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3mo
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Founding Engineer
New York City, New York, United States
$150k-$250k/yr OnsiteFull Time
Precharm
Precharm: An algorithmic trading firm solving trading problems in prediction markets.
1+ YOEOpen to candidates with 1–5 years of experience; strong production-grade backend skills and ownership of end-to-end systems.
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2w
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Founding Engineer
New York City, New York, United States
$150k-$180k/yr HybridFull Time
Terrarium
Terrarium: Builds a unified system of record for aging to help seniors live longer, healthier, and happier lives.
Proven experience building production systems from scratch, owning architecture, data ingestion and storage, AI/agentic systems, and compliance; high ownership, strong technical judgment, and comfort with ambiguity.
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5d
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Founding Engineer, Open Source
New York, New York, United States
$225k-$300k/yr OnsiteFull Time
Datalab
Datalab: Develops high-precision AI document intelligence models and software tools.
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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1mo
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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-powered care concierge and virtual clinic for employers.
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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2mo
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Senior Founding Engineer
New York City, New York, United States
$185k-$245k/yr OnsiteFull Time
Ambral
Ambral: AI-powered account managers for enterprise customer success teams.
3+ YOE3+ years of full-stack development with distributed architectures; experience with AI systems and large data processing; strong communication and scalable system design.
TypeScript, Nuxt.js, PostgreSQL, Vercel, Claude Code/Cursor
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2mo
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Founding AI Engineer
New York City or United States
$160k-$220k/yr OnsiteFull Time
Nolla Health
Nolla Health: Building AI-powered personal health diagnostic and management platforms.
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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1w
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Founding Engineer
San Francisco or Los Angeles or New York City
OnsiteFull Time
Clera
Clera: AI talent agent matching professionals with high-growth startup roles
Proven full-stack or backend engineering experience, strong software design and system architecture fundamentals, ability to operate in ambiguous startup environments, excellent communication, must be authorized to work in the US without sponsorship.
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3w
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Founding Engineer
New York, New York, United States
$180k-$210k/yr OnsiteFull Time
Volca
Volca: AI-powered automation platform for home services businesses.
Experienced engineer (front-end biased full-stack or applied AI) with system design ability; comfortable solving ambiguous problems and shipping product in a fast-paced, in-person startup.
Ruby on Rails, React, Postgres, AWS, Redis
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3w
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Founding Principal Engineer
New York City, New York, United States
$200k-$240k/yr HybridFull Time
Handspring
Handspring: Providing specialized mental health care for children and families.
8+ YOE8+ years building production software with staff/principal level experience; deep full‑stack skills; experience leading distributed teams; building in regulated or data‑sensitive environments; strong communication and technical leadership.
TypeScript, Node, React, AWS, EHR
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3w
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Founding Backend Engineer
New York City, New York, United States
OnsiteFull Time
Hera
Hera: Medicare-covered platform providing dedicated senior care coordination.
Experienced backend engineer with strong systems design, cloud and database experience, API and SDK development, security/compliance awareness, and ownership in early-stage environments.
AWS, SQL, APIs, SDKs
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4w
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Founding Design Engineer
New York City, New York, United States
$125k-$185k/yr OnsiteFull Time
Clark
Clark: AI-powered trust infrastructure for audit and accounting firms.
3+ YOE3+ years building modern web applications; strong React, TypeScript, HTML, CSS skills; experience with design and frontend engineering; product sensibility and attention to interaction detail.
React, TypeScript, HTML, CSS, Tailwind CSS, Figma
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