Software Engineer - Backend
$180k - $250kTheory Ventures
Location San Francisco; New York Employment Type Full time Location Type Hybrid Department Engineering Compensation $180K – $250K • Offers Equity At Koah Labs, we believe in rewarding world-class talent with highly competitive compensation. Our approach ensures that every team member is recognized and incentivized for their impact with a comprehensive package that includes a strong base salary, meaningful equity, and top-tier benefits. We are committed to providing an environment where our people are empowered to do their best work, knowing their skills and contributions are valued and rewarded accordingly. Who We Are Koah Labs is building the ad network to power the next generation of AI-native products. Our mission is to help publishers monetize and help advertisers reach the right audience — without compromising speed, UX, or privacy. We’re a small, tight-knit team in San Francisco with backgrounds at X, Apple, Meta and early-stage startups. We’ve raised from top investors and are growing fast with real traction on both the publisher and advertiser sides of the marketplace. Working at Koah means joining at the ground floor: you’ll ship code that shapes the company and the ecosystem we’re building. We move quickly, operate with high trust, and care deeply about craft. Our Stack Infra : Terraform, AWS, LGTM (Loki, Grafana, Tempo, Mimir), Tailscale, Cloudflare Data : PostgreSQL, ClickHouse, Redis, Kafka, Python Core Application : Ruby on Rails, React, TypeScript SDKs : Flutter, React Native, Android, iOS Example projects Build scalable data models that support multiple impressions for an ad request Design abstractions that allow us to experiment and ship new formats that allow for a flexible way of tracking engagement events Build a low-latency frequency capping system to improve an end user's experience You might be a fit if You like debugging and optimizing performance You are detail oriented and like to create good abstractions that others rely on You enjoy experimentation, measuring, and creating reliable systems Compensation Range: $180K - $250K #J-18808-Ljbffr Theory Ventures
$180k - $220k
...by David Sacks and Evan Owen, Glue is redefining how teams communicate and get work done in the AI era. We’re looking for a backend engineer to join our small team and help lead the effort to prepare the product for launch. Our technical foundation -- Golang, GraphQL...SuggestedWork at officeLocal areaImmediate startFlexible hoursGlu Mobile Inc.
San Francisco, CA4 days ago- ...production at high-scale companies across fintech, ride-sharing, and autonomous vehicles. About the role We’re hiring a Software Engineer, Backend to help build and scale our autonomous agent. This role is ideal for engineers who want to build, ship, and work on production...Suggested
- DocuSign, Inc. is seeking Software Engineers to join their team in San Francisco, California. This hybrid role involves building secure, scalable... ...languages and experience developing user interfaces and backend services. The ideal candidate will possess essential skills...Suggested
$150k - $350k
...Partner at YCombinator and founder of Lever. Our AI researchers, engineers, and designers have worked at Google, Nvidia, Meta, Netflix,... ...scale. About the Role We’re looking for a Full‑Stack Engineer (Backend‑leaning) to design and build the systems and user‑facing features...Suggested- Are you a skilled software engineer looking to advance your career? MLabs is hiring a Mid-level Software Engineer to join their innovative team... ...‑time inference. Leading Technical Initiatives : Influence backend, data, and AI/ML systems to optimize architecture and...SuggestedFull timeImmediate start
- ...legacy systems with adaptive, learning software. Founded in early 2024, Serval is already... ...across IT, HR, Finance, Security, Legal, and Engineering. Our mission is to eliminate repetitive... ...Overview As a Senior Software Engineer, Backend at Serval, you will play a pivotal role...
- We are looking for a founding backend engineer with unusually strong engineering and design taste. The world’s most critical infrastructure... ...agentic systems, applied to some of the most critical enterprise software in the world. Learn why we’re excited about mainframe...H1bVisa sponsorshipWork visaRelocation package
$186.4k - $266.3k
About the Role: Tubi's Core Experience Backend team is responsible for building the high‑performance, secure, and scalable systems... ...office two days/week. What You'll Do: We are looking for a software engineer who is proactive, collaborative, and pragmatic with a passion...Work at office2 days per week$161k - $230k
Software Engineer: Backend at Thatch Location: Remote (US); San Francisco, California, United States Compensation: $161,000 - $230,000 USD About the role Thatch is building a healthcare system people actually love. We give companies a smarter, more personal way to offer...Remote work$180k - $275k
About the role You’ll build and scale the backend systems that power millions of users creating content every day on Gamma. This role... ...features across the full stack, working closely with frontend engineers to deliver polished experiences Architect solutions for complex...Full timeWork at officeWork from home- Software Engineer Intern - Backend Focused - Winter 2027 Rippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses, benefits, and computers. For the...Full timeInternshipWork at office3 days per week
$135k - $236.25k
...About the HR Product Team The HR Product Engineering team is the foundational layer of... ...intersection of HR, compliance, and enterprise software. Our products manage the most sensitive... ...Do Design, implement, and test reliable backend services and APIs that power core product...Work at office3 days per week- Software Engineer, Backend (Cooperative AI) OpenAI | Posted Mar 14 Full-time Negotiable Unknown About The Team The Cooperative AI team is scaling OpenAI with OpenAI. We are building a model powered knowledge system that evolves and learns as our products, systems and...Full timeInternship
- ...movement and access to financial data simple and secure. As a Software Engineer, you will design and build the systems that power how... ...their finances. You will work across the stack, from reliable backend services and APIs to intuitive applications that bring those...Work experience placementInternshipLocal area
- Company Background Specter is creating a software-defined “control plane” for the physical world. We are starting with protecting American... ...by 10x. Our platform will ultimately become the perception engine for a company’s physical footprint, enabling real-time perimeter...
- Who are you? We are seeking a Software Engineer to join the Ema team. You are passionate about designing and developing maintainable software applications. You are a creative problem solver who thrives in ambiguity and can make abstract problems concrete. Most importantly...Work experience placement
- ...that significantly outperforms individual engineers. We combine language models with human ingenuity to push the boundaries of software development efficiency and quality. Role... ...productivity. You’ll help architect and build core backend systems — the infrastructure that powers...Remote work
$160k - $180k
...platform to help professionals scale. Role Summary As a Senior Software Engineer, you’ll own major parts of our AI stack. You’ll prototype... ...attorneys use within days, not quarters. You’ll work across backend, orchestration, retrieval, and product-integrated AI systems....Full timeContract workTemporary workWork experience placementWork at office$150k - $220k
The simple task of buying software, services, or tools at work has become hopelessly complicated at even the most innovative companies... ...incredible value for our customers. Join us! Your Role As a Software Engineer, you will be responsible for building Zip’s core products and...Immediate startHome officeFlexible hours- Who We Are Koah Labs is building the ad network to power the next generation of AI-native products. Our mission is to help publishers monetize and help advertisers reach the right audience — without compromising speed, UX, or privacy. We’re a small, tight-knit team in San...Flexible hours
$135k - $225k
Software Engineer II, Backend Full Stack - AI Platform About this position Rippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses, benefits, and...Work at officeShift work3 days per week$140k - $200k
...authorization and ledger accounting, to credit decisioning, to rewards engines and payment processing. Build net-new products, not just... .... Your Profile 5+ years of experience building production backend systems (fintech experience a plus) You’ve built services that...Flexible hours$149.6k - $308k
...about our AI interview philosophy and how we use AI in our recruiting process here. We are looking for inquisitive, well-rounded Backend engineers to join our Core, Monetization, and Tech Foundations engineering teams. Working closely with product managers, designers, data...Local areaRelocation package$140k - $260k
...in marketing in 25 years. If you want to do the best work of your career at the frontier of AI, come build it with us. As a Backend Engineer, you will build and optimize the infrastructure that powers our AI-driven insights. You will design scalable APIs, process large...Work at officeVisa sponsorshipShift work- ...prompts, and catch regressions — turning production data into better AI with every release. About the role We’re looking for a backend engineer who’s excited to build the infrastructure behind cutting-edge AI development tools. Under the hood, Braintrust is a real-time,...Flexible hours
$168k - $280k
Senior Software Engineer, Backend Full Stack - Service Cloud About this position About Rippling Rippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses...Work at officeShift work3 days per week$166k - $225k
...deep data insights to improve their business. Founded by engineers — and customer obsessed — we leap at every opportunity... ...virtual machines. And we're only getting started. As a software engineer with a backend focus, you will work with your team to build infrastructure...For contractorsLocal areaWorldwideFlexible hours$130k - $155k
...improve maternal and child health outcomes. About You: As a backend engineer with Delfina, you will have the opportunity to contribute to... ...testing and debugging to ensure the delivery of high-quality software. Stay updated with the latest trends and advancements in software...Full timeFlexible hours$159k - $278.25k
Senior Software Engineer, Backend Full Stack - HR Product Rippling gives businesses one place to run HR, IT, and Finance. It brings together all of the workforce systems that are normally scattered across a company, like payroll, expenses, benefits, and computers. For...- ...healthcare AI company The Role We're seeking an experienced Senior Backend Engineer who is motivated to meaningfully improve the way healthcare... ...Tusk What we’re looking for: 5+ years experience building software applications Prior experience leading engineering teams as a...Work at officeRemote workHome officeFlexible hours2 days per week3 days per week
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