Founding Engineer: Build Core Backend & Own Features
Weekday AI (YC W21)
A promising startup in San Francisco is seeking a Founding Engineer to join their team. In this role, you'll take ownership of building and scaling backend systems using Python and TypeScript, while collaborating closely with founders. Ideal candidates should have 1-5 years of experience and a strong problem-solving mindset. This position offers competitive compensation, high autonomy, and an opportunity to grow into leadership as the company scales. #J-18808-Ljbffr Weekday AI (YC W21)
- Andco is hiring a Founding Engineer in San Francisco to help build the product from the ground up. You’ll own meaningful parts of the stack, moving from customer problems to system... .... This generalist role values strong backend fundamentals, frontend work in React/TypeScript...Backend
$165k - $247k
...and Under Armour—build better products and... ...for a Fullstack Engineer to join the Core Analytics team,... ...ship end-to-end features that elevate the... ...experience. You’ll own your impact from... ...robust, scalable backends and developing interactive... ...off. We were founded in 2012, went...BackendFull timeWork at officeWorldwideHome officeFlexible hours$200k - $250k
...Senior Software Engineer to join our Core Platform - Streaming... ...you will design, build, and evolve the... ...Team: The team owns foundational... ...infrastructure and backend problems, setting... ...benefits package, featuring 401k, and premium... ...Applicant Privacy Notice found here We...BackendFull timeWork at officeRemote workWorldwideFlexible hours$205k - $235k
...fast — since our founding in 2019, we’ve grown... ...an experienced backend engineer to join our growing... ...Staff Engineer on our Core Engineering team. This team owns the most essential... ...of new features in our Django monolith... ...years of experience building backend applications...BackendFull timeWork at officeWork from homeFlexible hours- Notability in San Francisco is seeking an early-career software engineer to join our backend team. You will own core features across our backend, work with API requests, databases, and scalability, and ship stable, readable code for Notability's clients. You should communicate...BackendRemote workFlexible hours
$140k - $200k
.... These include frontend and backend engineers, AI research scientists, and... ..., and many founders of their own companies. Overview With... ..., and has experience building great user experiences that delight... ...that they cried when they first found the product because it was so...BackendFull timeWork at officeRemote work$151k
...hiring a Senior Frontend Engineer to help drive Scribd’s... ...program and build the frontend foundations... ...team to build product features that help publishers upload... ...Experience collaborating with backend and platform teams to... ...better than you found them You care deeply...BackendFull timeFor contractorsLocal areaRemote workHome officeFlexible hours- Avent Industrial Inc is seeking a founding engineer to build the core system that drives industrial commerce. The role involves developing the intelligence layer for quoting, procurement, and decision-making across a vast industrial network. Candidates should possess qualities...
- ...Employers 2022 List.The Core Product Experience (CPX) team owns the heart of the... ...and our Copilot feature adoption. CPX partners... ...other pods across Engineering to deliver high-... ...helps shape what we build, leads delivery through... ...frontend and backend. Reduce regressions...BackendWork at officeImmediate startRemote workWork from homeWorldwideMonday to Friday
- Takt is seeking a Founding Full Stack Engineer to join our in-person team in San Francisco, 4-5 days... ...work directly with the founders to build the core intelligence engine powering modern... ...grade code at scale, and have strong backend skills. Salary is 120-180K with 0.5-...BackendRelocation
- ....About the role:The Core Experience team owns how companies and users... ...it every day. We build the onboarding flows... ...do:Design and build backend systems that power Core... ...design to shape how features get built, not just... ...consumed by other engineering teams across Rippling...BackendWork at office3 days per week
- ...product company building AI-powered software... ..., high-caliber founding team. They're looking... ...for a Founding Engineer to join as one of... ...Design and build core product features end-to-end across... ...and ship backend services using Kotlin... ...product workflows Own infrastructure and...BackendPart time3 days per week
$163k - $204k
...nationwide and are building a workplace that... ...full-stack software engineers to join the teams... ...facing products — the features and experiences... ...building reliable backend APIs, influencing... ...build, and test Gusto core products such as... ...teamsExperience owning multi-quarter projects...BackendFull timeWork at officeLocal areaRemote work2 days per week3 days per week- ...Caylex is building the infrastructure layer... ...it. The Role As a Founding Engineer, you’ll play a... ...user-facing product features. Build high-... ...building large-scale backend infrastructure or... ...scaling them. Enjoy owning large product... ..., and DX are the core product. Why Join...BackendFull timeWork at office
- Skiffra is building the intelligence layer for the physical... ...seeking a frontend leader to own architecture and deliver... ...product, design, AI, and backend teams to ship end-to-end features, craft intuitive... ...standards as part of the founding team in a hybrid Los Angeles...Backend
$171k
...role As a Staff Software Engineer on the Everand Core team , you’ll help shape... ...the stories they love by owning the backend platform that powers... ...capabilities. Along the way, you'll build systems that drive... ...Familiarity with experimentation or feature-flagging platforms. --...BackendFull timeTemporary workFor contractorsLocal areaHome officeFlexible hours$120k - $250k
...Overview Founding Full-Stack Engineer role at Floot (YC S25). Base pay range is... ...directly with the founders to build the product and shape our... ...AI systems, user-facing features, to backend infrastructure. Talk to users... ...: you’re autonomous and own features from start to finish...BackendFull time- ...allows companies to build proprietary... ...grounded in their own workflows.We are... ...not a typical engineering role. You’ll be our founding engineer, with an... ...matters fast Own features end-to-end, from... ...weeks Build the core product surfaces... ...React, Next.js, backend APIs, and...Backend
$171k
...About the Role Fable Core is the backend, infrastructure, and... ...book, join a book club, build a reading habit. We... ...Fable app has often been featured in the App Store, both... ...As a Staff Software Engineer on the Fable Core team... ...the Fable backend and own the reliability and health...BackendFull timeLocal areaHome officeFlexible hours- David Joseph & Company seeks a Founding Engineer in San Francisco to own core backend features for a pricing and quoting platform. You will shape the product, ship... ...-minded team. The role emphasizes ownership, building in TypeScript/Python, and managing data with SQL/...Backend
- ...(Superhuman), to build the agentic operating... ...provides value. Backend‑heavy, AI‑native,... ...to be a full‑stack engineer, an AI engineer, and... ...Responsibilities Own large parts of the... ...their pain. Scope features that actually... ...table. This is a founding role. You'll shape...Backend
- ...If you'd like to build the world's best AI cloud... ...As a Senior Software Engineer on Lambda’s Core Cloud Platform team,... ...GPU cloud. The team owns core platform capabilities... ...reliable APIs, backend services, state machines... ...About Lambda ~ Founded in 2012, with 500+ employees...BackendFull timeWork experience placementWork at officeLocal areaWork from homeFlexible hours
- Can of Soup in San Francisco is looking for a founding full-stack engineer to take ownership of the app surface and the personalized recommendations... ...storytelling app. The ideal candidate has infrastructure-building experience, a startup background, and a passion for fandom...
$194k - $267k
...AI. Okta secures AI by building the trusted, neutral... ...’ experiences. Okta's Core Engineering team is responsible for... ...looking for a staff level backend engineer to join a... ...re proud of what they own and deliver. Our elite... ...rollout of new common features and frameworksOperate,...BackendPermanent employmentLocal areaWorldwideFlexible hours- About the Role You'll be a Founding Engineer at Solderable, building the core AI-assisted PCB design... ...hardware roots—you'll own everything from the design... ...and EDA automation features that ship to users. Integrate... ...the platform, from backend systems to user-facing tooling...Backend
- ...looking for a highly motivated Founding Engineer to join us at the ground floor and help build our product from zero to... ..., build, and scale robust backend systems using Python... ...internal tools, and full-stack features when required Own core product features end-to-end...BackendFull timeWeekday work
$180k - $250k
...enterprise AI company building an intelligent... ...operators. As a Founding Engineer, AI Platform, you will build the core platform from the... ...workflow execution; own work from customer... ...surfaces and backend systems; work directly... ...AI-powered features into production and...Backend3 days per week- ...an entrepreneurial Founding Product Engineer in San Francisco.... ...directly with the CTO and Backend Lead to own the "last mile" of... ...Own UI Delivery: Build intuitive, high-impact... ...for our client's core products given REST... ...Grow into full-stack feature ownership, React Native...Backend
- ...AreAt Pave, we're building the industry’s leading... ...Craft Ventures.Core Platform @ PaveThe... ...center of Pave Engineering, bridging product... ...this role, you’ll own critical services... ...Bring3+ years of backend engineering experience... ...happen.Life @ Pave Founded in 2019 with a clear...BackendFlexible hours3 days per week
$100k - $200k
...computer interaction, building the future of... ...Francisco Bay Area. As a Founding Engineer, you will play a pivotal... ...user is looking at. Own the Core Infrastructure: Design... ...build, and optimize the backend systems and low-level... ...and contextual features can be plugged into the...BackendFull time10 hours per weekFlexible hours
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Founding Engineer: Build Core Backend & Own Features. Be the first to apply!
- senior backend developer San Francisco, CA
- entry level back-end developer San Francisco, CA
- back-end developer San Francisco, CA
- backend software engineer San Francisco, CA
- remote back end developer San Francisco, CA
- backend intern San Francisco, CA
- node js backend developer
- backend engineer
- senior backend developer
- go backend developer



