Founding Engineer Jobs

Analogy Group is an early-stage startup building AI-enabled political intelligence tools. We ingest data from across the news, web, and social media and create in-depth reports and visualizations. We are mission-driven, working with nonprofits, advo…

RepIntel builds field-intelligence software for pharmaceutical sales teams. Our platform turns Medicare, NPI, and claims data into optimized walking routes, live physician scoring, and actionable insights reps use in the field. We’re looking for a C…

Jupiter is building a better approach to healthcare for 80 million working age Americans like you and me. We all know that healthcare is broken. In large part, this is because too much quality, pricing, and access data has been hidden from view, and…

Elastics is building an AI-native operating system for trading - deterministic agents, live data, portfolio management and execution across prediction markets, crypto, and beyond. We are Pre-Seed funded, working with our first clients, and need a Fo…

We’re growing our engineering teams in San Francisco and New York and are looking for builders who want to help shape both product and technical direction. Our teams are collaborative and fast-moving, tackling hard technical problems with real impac…

Join Meegos as our Founding Engineer. Our goal is clear - build the most beloved soccer app in the world. You'll own architecture, infrastructure, data pipelines, and end‑to‑end product experiences from day one. We’re just getting started but have s…

This will be the most challenging (but rewarding) build of your life. You'll be joining a kind & smart fully remote team of engineers that delivers at the highest level. You're not here for the early startup paycheck, you know the pay is (VERY) low …

Own category creation, positioning & narrative for AI-driven timekeeping. Lead GTM + product launches. Build scalable, high-perf DOM + rendering systems. React + Python + TypeScript, WebGL shaders, AI video pipelines. Next.js/TypeScript, LLM/AI apps…

Hi HN - I'm the founder of Stardrift, and we're looking for a founding engineer to join our team of 3-4. We are building a world-class travel search experience. In the future, you won’t book travel by opening ten tabs in Google Flights; you’ll book …

Collecting data from the web is painful with custom scripts everywhere, Cloudflare roadblocks, and pricey infrastructure. I’m Rohit, the CEO at String, where we are building the first scraping platform that just works. In the last two years, with a …

Phosphor builds recursively self-improving systems (via malleable software and natural language interfaces) to enable the efficient development and financing of the physical world (infrastructure, energy, real estate). Our product is built around a …

We are building a cutting-edge product leveraging generative AI and machine learning for multi-modal data processing at the edge. Own the end-to-end architecture & tech / product roadmap – choose the stack, design data pipelines, secure cloud infra,…

We’re building AI agents that help B2B companies scale customer relationships. We’re already live with several enterprise customers and receiving a lot of positive feedback: “I’m super excited!! You’re changing our lives!!” — Account Manager for eme…

Can you handle projects that seem unsexy and uncool but are actually incredibly gratifying and great businesses? Read on. We’re building software to help small manufacturing firms ($10 - $20MM in revenue) build things with higher quality and speed. …

Raremarq is building the Stripe for Auctions — a no-code/low-code platform that lets brands, creators, and businesses embed auctions and dynamic pricing directly into their stores. Our auction engine already powers real-time bidding, payments, and f…

At Solitude Labs, we're securing the future of the energy grid. Solar, batteries, EV chargers, and other distributed energy resources (DERs) are transforming how energy is produced and consumed. While they present endless opportunities to modernize …

This will be the most challenging (but rewarding) build of your life. You'll be joining a kind & smart team of engineers that delivers at the highest level. You're not here for the early startup paycheck, instead, you're in for the long game and car…

Sales software platform (CRM, Prospecting Service) for independent businesses in the construction supply industry. Our customers are blue-collar, entrepreneurial teams who have been underserved by technology. We provide them the tools to compete hea…

At Pocketflows, we’re on a mission to help Main Street SMBs grow. We build marketing and communication APIs that embed inside the vertical SaaS platforms that businesses like salons, fitness studios, and restaurants already use to run their operatio…

We are building the best-in-class phone AI for restaurants, enabling autonomous agents to handle orders, reservations, and customer inquiries. As a founding engineer, you’ll shape our core product while working directly with cutting-edge LLMs, devel…

We are building a truly private, open-source LLM gateway to address privacy problems around using LLMs. When we interact with AI-based services, we face the fundamental tension between utility and privacy. Current solutions to this problem are inade…

We just raised series seed and looking for a founding engineer. We're reshaping healthcare for the $60 billion Medicare market. Engineering culture is one that values learning, freedom to write code instead of overhead, fast pace, and using AI tooli…

We're building an AI Creative Suite that empowers creators with cutting-edge AI models and an advanced editor.

CreativeMode is building Lovable for video game mods, starting with Minecraft. In our first three months, we built the most powerful no-code modding platform ever for Minecraft and created a double digit percentage of all mods ever released. We’re b…

Our final boss is to de-throne Yelp with co-op

Energy is the #1 constraint in new datacenter buildouts. Neuralwatt is reshaping AI compute around energy efficiency to maximize revenue per kilowatt. We’re a VC-backed, early-stage startup building optimization tools for AI, HPC, and datacenter wor…

We're the UK's fastest growing AI voice company (~30% MoM) - very deeply focused on the trades industry right now (think your friendly neighbourhood plumbing company). We're a small but experienced team hiring 3 more to join.

We're building the customer platform for developers — think of a single service that does auth, payments, analytics, marketing emails, and so much more. We're selling to developers & startups so our audience is right here on this website! If you app…

Channel3 is hiring a Founding Engineer to help us build a database of every product on the internet. Our API lets any AI app or agent add shopping capabilities and earn commission on sales. As commerce moves from in-store, to online, to AI-native, t…

We are building an AI platform that empowers retail traders with institutional-grade research tools and real-time strategy guidance. As our first technical hire, you will own the full lifecycle from AI model research to production deployment. You wi…

Early stage Rails engineer wanted to build AI-driven enterprise wealth tools in NYC. Founding role, high ownership, direct impact. We’re a seed-stage NYC startup reimagining how wealth management firms work. LEA extracts structured data from complex…