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28 founding software engineer jobs at 26 companies in Newark, NJ

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 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 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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3mo
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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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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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1w
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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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11h
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Founding Software Engineer
New York, New York, United States
$150k-$200k/yr OnsiteFull Time
Clera
Clera: AI talent agent matching professionals with high-growth startup roles
3+ YOE3+ years building production TypeScript and Python services; experience with AWS, Docker, PostgreSQL; API and data model design; strong verbal/written communication; US work authorization required.
TypeScript, Python, AWS, Docker, PostgreSQL
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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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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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1mo
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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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1mo
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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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3w
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Founding Product Engineer
Berlin or New York City or London
RemoteFull Time
Melotech
Melotech: Generative AI platform for automated music and video production.
3+ YOE3+ years engineering or product experience, built high-engagement B2C products, AI-native, user research and data-driven product decision making, autonomous early-stage founder mindset.
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2mo
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Founding Forward-Deployed Engineer
New York, New York, United States
$170k-$280k/yr OnsiteFull Time
Sandstone
Sandstone: AI-native platform for in-house legal departments.
4+ YOE4+ years as Forward Deployed Engineer or Full Stack Engineer in a high-growth B2B SaaS environment; entrepreneurial startup founder experience; strong customer-facing and strategic advisory skills.
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1mo
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Founding Forward Deployed Engineer
New York City, New York, United States
$166k-$250k/yr HybridFull Time
Alloy
Alloy: Identity and fraud decisioning platform for financial institutions.
5+ YOE5+ years building production software, customer-facing technical experience, strong backend and API skills, ability to write production code across stack and make architectural decisions.
TypeScript, JavaScript, React, Python, Django, Node.js, PostgreSQL, OpenSearch, AWS
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1mo
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Applied AI Engineer, Founding Team
New York City or Milwaukee or Dallas or Columbus or Kirkland or Cincinnati or Cleveland or Oklahoma City or Austin or Albany or Chicago or St. Petersburg or Hartford or Pittsburgh or St. Louis or Miami or Sacramento or Raleigh or Minneapolis or Mountain View or Scottsdale or San Francisco or Morristown or Denver or Boston or Philadelphia or Des Moines or Overland Park or Los Angeles or Charlotte or Walnut Creek or Carmel or Seattle or Houston or Arlington or Atlanta or Redmond or Bentonville or Beaverton or Nashville or Detroit or San Diego
$63k-$219k/yr OnsiteFull Time
Accenture
AccentureNYSE: ACN: Global provider of management consulting and technology services.
5+ YOE5+ years in software engineering/AI/enterprise tech; 1+ year building hybrid retrieval systems and agentic AI (Claude/Anthropic); experience with MCP servers; ability to translate AI concepts; Bachelor's degree or equivalent.
Anthropic, Claude, Model Context Protocol (MCP), Oracle 23ai, Oracle, Oracle Cloud Infrastructure (OCI), EPM, ERP
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3d
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Founding Product Engineer
New York City, New York, United States
$180k-$220k/yr HybridFull Time
Kinstead
Kinstead: AI-native operating system for independent healthcare clinics.
Strong React/Next.js experience, frontend ownership from concept to production, cross-boundary collaboration with backend and designers, startup experience and use of AI dev tools preferred.
React, Next.js, TypeScript, shadcn/ui, Python, Django, PostgreSQL, Twilio, AWS, GCP, OpenAI, Medplum, Vercel, Kubernetes, Terraform, Datadog, Github Actions, Claude Code, Codex
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2w
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Founding Frontend Engineer
San Francisco or New York
OnsiteFull Time
Ciridae
Ciridae: Develops AI-native operating systems for real-economy businesses.
4+ YOE4+ years building production frontend with React and TypeScript, strong UX instincts, ability to translate vague requirements into polished interfaces.
React, TypeScript
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