Senior Backend Engineer Jobs

The Problem: Agentic AI systems are becoming increasingly powerful and autonomous. Most companies deploying them have no idea how vulnerable they are. We’re building the offensive security platform that will become the industry standard for AI safet…

JotPsych is a behavioral health AI scribe tool and we're looking for frontend and backend engineers as we build the first agentic EHR for behavioral health. We're looking to hire ASAP!

Estuary is a VC-backed startup building the next generation of real-time data infrastructure. Our platform, Estuary Flow, combines change data capture (CDC), stream processing, and declarative configuration to unify real-time and batch data movement…

At Gigs, we're building the operating system for mobile services - a platform that enables tech companies to seamlessly embed connectivity into their products.

Weave Bio is a <50 person start-up building an AI-native regulatory automation management platform redefining regulatory submissions for novel therapeutic candidates.

We're hiring a Backend Engineers and a PM at Greystone, a leading real estate finance and investment company. We're building internal platforms and external tools to help investors, lenders, and originators operate smarter and faster with a strong f…

Modash is an end-to-end influencer marketing platform for Shopify stores. We help every creator earn a living. Headquartered in Tallinn, Estonia, with engineering distributed across Europe. 60 person team, raised €11M in Series A funding, ARR growin…

We’re building software to help high-volume law firms handle their caseload more efficiently—starting with an AI assistant that transcribes and classifies inbound calls so teams can focus on what needs action. That system is already in use, and we’r…

Build high-quality, robust engineering at the rarest of things - a Silicon Valley startup that is both wholesome AND profitable. We have 8-figure revenue, are YC-backed, and growing fast.

Connie Health is a fast-growing healthtech startup on a mission to empower older Americans to make confident, worry-free Medicare plan decisions. We offer a tech-enabled Medicare navigation platform that combines an AI-driven technology with local M…

Checkly helps engineers build reliable products by unifying testing, monitoring and observability. OpenTelemetry, Playwright, and Monitoring as Code are our foundation for unifying performance and reliability.

We are looking for candidates that are excited to join us on a mission to raise the standard of trust online. All of our roles are fully-remote, except where specific locations are noted. Most of the software engineering positions have been repeatin…

Akkio is building applications and agentic workflows for media agencies: audience building and distribution, measurement / campaign analysis, media planning, etc. Generative and traditional AI/ML.

Promise (YC W18) is building modern payment infrastructure for the government. We help people stay on track with rent, utilities, court fines, and more—without falling into cycles of debt or incarceration. It’s complex, high-scale work with real hum…

Estuary is a VC-backed startup building the next generation of real-time data infrastructure. Our platform, Estuary Flow, combines change data capture (CDC), stream processing, and declarative configuration to unify real-time and batch data movement…

At Gigs, we're building the operating system for mobile services - a platform that enables tech companies to seamlessly embed connectivity into their products.

Office Hours is a consulting platform and marketplace. We connect businesses with experts, and experts with opportunities to get paid to share what they know. On the surface, it’s a simple marketplace: search, match, connect, and pay. Under the hood…

Modash is an end-to-end influencer marketing platform for Shopify stores. We help every creator earn a living. Headquartered in Tallinn, Estonia, with engineering distributed across Europe. 60 person team, raised €11M in Series A funding, ARR growin…

We're building the future of cloud access management - helping companies achieve Zero Standing Privileges through just-in-time access and intelligent entitlement management. What you'll work on: - Build intelligent scheduling engines that orchestrat…

We are looking for candidates that are excited to join us on a mission to raise the standard of trust online. All of our roles are fully-remote, except where specific locations are noted. Most of the software engineering positions have been repeatin…

Connie Health is a fast-growing Medicare brokerage on a mission to empower older Americans to make confident, worry-free Medicare plan decisions. We offer a tech-enabled Medicare navigation platform that combines an AI-driven technology with local M…

We’re mission-driven capitalists: making life-saving drugs more accessible, and building a $200B+ company—on the scale of Palantir or ServiceNow—serving the largest healthcare enterprises. Traction: profitable and growing fast. Selling 7+ figure con…

We make the number one AI Notetaker and are hiring across the stack (rails/typescript/go/k8s/gcp). About Fathom: • YC W'21, raised Series A this summer, ~70 employees • Growing 10-20% every month (ARR + Usage) • 82 NPS, #1 app on both G2 + Zoom mark…