Backend Engineer jobs

Harmony AI is described as "the AI operating system for American manufacturing" that runs a plant on real-time data, connecting machines, software, paperwork, and tribal knowledge. Roles are deployed on factory floors; you relocate to a plant and ship inside …

Xata is building Postgres for agentic workloads. As AI agents become software’s newest users, they need isolated Postgres environments to experiment, test, and execute safely. Xata enables companies to create Postgres branches instantly, giving every agent it…

Lago (https://getlago.com/) is an open source, AI-native billing platform. The posting indicates Lago is hiring in Paris and remote across wider Europe and the Americas for various roles, with open roles including Infrastructure Engineer (Europe, Canada or Br…

Yuzu Health (Series A) is hiring engineers for in-person work at Yuzu's HQ in Chelsea, NYC. Yuzu is rebuilding health insurance from the ground up, enabling anyone to create their own health plan from scratch. Their platform handles member/HR portals, claims …

Runway is building AI to simulate the world—merging art and science. We’re a team of researchers, engineers, artists, and designers shipping the models and infrastructure behind a new generation of creative tools. We’re hiring across a lot of teams right now…

Repeat founder building something new and putting together a founding team. This high ownership, high equity, ideally for people with prior startup experience or previous founder/founding team. Roles listed: AI Engineer (ML/data); Backend Engineer; Full-Stac…

Annex is solving the homeowners insurance cost problem by enabling insurance agents to quote and bind policies within 90 seconds using better digital infrastructure, replacing the current multi-day phone/email/fax-based transaction process. The company grew 4…

Building a dynamic runtime on top of the Linux BPF sub-system. Looking for extremely talented / passionate Rust developers / Backend Engineers with a deep interest in Linux internals, Distributed Systems, Dev Tools, Great Developer Experiences and Systems pro…

Neurotone.ai builds AI-assisted auditory training for people with hearing loss. Our product is live in clinics and growing internationally. Backend Engineer: Postgres-heavy work on Supabase, including PL/pgSQL functions, pgmq queues, Deno edge functions, bil…

If you or a loved one has ever suffered from confusing/egregious medical bills or insurance communications, this is your chance to give the power back to others in a similar situation. Our mission is to demystify health insurance, healthcare and medical bill…

Twindo (Formerly Canvas; The Spatial Computing Company) | Full-time | Remote. At Twindo, we’re working on spatial computing - using computer vision to 3D reconstruct and understand your surroundings so that software can operate over real-world spaces. Twindo …

At Shepherd, we’re pursuing the most ambitious technical vision in commercial insurance: fully autonomous underwriting. Shepherd is an AI-native commercial insurance platform transforming how high-hazard industries get covered. We built Shepherd to solve the…

Air Space Intelligence is hiring in Boston. The company is a frontier AI and product company for critical industries and defense, backed by a16z. They are rebuilding America’s air traffic control system from scratch, focusing on a large real-time optimization…

Woosmap runs location APIs including geocoding, routing, store locator, and address autocomplete at enterprise scale. When a checkout page resolves your address or a courier finds you, that’s provided by the company. Small team owning and driving complex solu…

At Gigs, we are building the operating system for mobile services - a platform that enables tech companies to seamlessly embed connectivity into their products. Klarna Mobile, OnePay Wireless and Revolut Mobile are powered by Gigs. We are looking for exceptio…

Repeat founder building something new and putting together a founding team. High ownership; ideally candidates with prior startup experience or previous founder/founding team experience. Open roles include Full-Stack/Frontend/AI Engineer, Backend Engineer, De…

ThreatMark protects >50M end users from financial fraud and saves > $100M every year in losses. The company works with top banks in the EU and US. Responsibilities include developing large-behavioral models that recognize returning users using mouse movements…

Mitte is an AI creative suite with a built-in media agent. Founded by an ex-Superhuman lead engineer. Lean startup and unix philosophy; they ship every day and focus on systems design and thoughtful patterns before scaling. Hiring Backend Engineer (Elixir, Go…

Hammock is building the first HSA/FSA that works for modern life—letting people spend pre-tax dollars on everyday wellness like the gym, recovery, and prevention. Backed by a16z Speedrun and others. Small NYC team shipping fast and hiring two engineers. Back…

Building a dynamic runtime on top of the Linux BPF sub-system. Looking for extremely talented and passionate Rust developers / Backend Engineers with a deep interest in Linux internals, Distributed Systems, Dev Tools, Great Developer Experiences, and Systems …

Yuzu Health is rebuilding health insurance from the ground up with a platform that helps employers create health plans from scratch. The platform covers member/HR portals, claims adjudication, invoice automation, member support tools, printing and sending out…

Sheer Health demystifies health insurance, healthcare, and medical billing by using cutting-edge technology and advanced data analytics to deliver personalized recommendations to save money, maximize plan benefits, stay on top of reimbursements, and avoid err…

Starbridge is building an AI platform that turns large-scale public and enterprise data into reliable sales insights. The role offers huge ownership and product impact. Backend Engineer: build enterprise integrations, large-scale scraping and parsing pipeline…

Shepherd is an AI-native commercial insurance platform focused on fully autonomous underwriting for high-hazard industries. The company is growing its engineering team and hiring product-minded engineers who value ownership, technical excellence, and customer…