Founding Backend Engineer
Intro Corporation
Join Our Team at Intro
Intro is growing our team of amazing people who are on a mission to give everyone access to anyone, empowering each other to create a better world. Intro started in 2022 by first building a tool for the world's top founders and experts, enabling their audiences from all over the world to be able to access them, jump on a live video call, and get personalized advice. We were (and still are) grateful to see that it was an INSTANT hit.
Today, we have over 20k five star reviews, and the founders of Reddit, Zillow, Sweetgreen, DryBar, and 1k+ more all became partners, as well as advocates of our product, company, and mission. We then launched a marketplace, chat, subscriptions, and more, each leading to faster growth.
We're just getting started — the Intro of tomorrow will look very different than the Intro of today. In fact, we're confident that Intro will become the go-to network for access, knowledge, and…(we can't say the last part just yet), all over the world.
If you're interested in joining an amazing company that is growing (fast), loved by its users, and deeply cares about quality, we'd love to meet you.
Team
Hey everyone! it's Raad, CEO at Intro.
Our team is world-class. It's the best team I've ever worked with because everyone here is (1) a good person who cares about the mission (2) they're functionally great at their craft, and (3) they help each other out! It's a very no-drama type of place which is what happens when everyone is really good at what they do.
In their past careers, people on our team helped create or build major products like QuickBooks Online, Uber Eats, Calm, and more. We love working on BIG problems for a LOT of people and believe that Intro will be the most impactful yet.
Role Overview
We are looking for a Senior/Staff level Backend Engineer to design, build, and maintain scalable backend systems that power our product. You will work closely with cross-functional teams to deliver robust and reliable solutions.
Key Responsibilities
Design and implement backend services and APIs that are scalable, reliable, and secure.
Collaborate with frontend engineers, product managers, and designers to define and build new features.
Optimize performance and scalability of the backend systems.
Write clean, maintainable, and well-documented code.
Conduct code reviews, provide feedback, and mentor junior engineers.
Identify technical debt and provide recommendations for improvements.
What We're Looking For
5+ years of experience in backend development.
Strong experience with Go, Node.js, Python, Java, or similar backend languages.
Expertise in RESTful APIs
Experience building ecommerce / payment systems
Proficiency in SQL and NoSQL databases (e.g., PostgreSQL, MongoDB).
Familiarity with cloud platforms like AWS, GCP, or Azure.
Experience with CI/CD pipelines and test automation.
Excellent problem-solving skills and attention to detail.
Strong communication and collaboration skills.
Our Investors
We're backed by Andreessen Horowitz (A16Z), 776, Alexis Ohanian (founder of Reddit), Tiffany Haddish, Kevin Durant, and a group of world-class investors.
Company Values
Impress the customer
Be successful as a company
Be creative, inventive, and scrappy
Keep it simple and execute
Take a moment to understand others
Feedback should make us stronger, not weaker
Ideas are important. Execution is 10x more important.
Stay grateful
Why Work With Us?
On your first day, we'll do a few exercises to help you identify your life goals. We'll ask questions like "what do you imagine your life looking like if you achieved all of your goals" and "why are those goals important to you?" Once we identify these, they become our goals and we will work together to help make them a reality.
Next, we'll ask you about things that matter to you in the short term. These could be things like a gym membership, meditation classes, or an allowance to attend concerts. It's an open ended exercise and we'll come up with a perks package that makes you feel valued. Please note, we cannot yet buy you a ticket on a SpaceX rocket. It's been asked!
Finally, here are the things you'll definitely get: competitive salary, equity (you become an owner of the business), health insurance, apple equipment, company trips and events, allowances, flexible vacation days, flexible sick days, recharge days, and more.
Note: Certain aspects of compensation, benefits, and the onboarding process may not apply to contract and part-time roles.
- ...final pre-launch phase and ship a public iOS/Android app in the next 4–6 months. We’re seeking a highly skilled and motivated Founding Backend Engineer with expertise in marketplace architecture, geospatial matching, and scalable system design. You’ll join a small,...Suggested
- ...companies while building a long-term career. Job Title: Founding Infrastructure & Reliability Engineer Location | On-Site — San Francisco, CA Time Zone |... ...operating production infrastructure or high-throughput backend systems Strong debugging ability across services,...Suggested
- ...Design, develop, and maintain scalable backend services to help us serve millions of users... ...new features. Collaborate with frontend engineers to design and implement RESTful APIs and... ...Previous experience as a founder or founding engineer is highly preferred. Hard skills...SuggestedFull timeContract workWork experience placementWork at officeImmediate start
$160k - $200k
*Founding Backend Engineer* *Company Overview* Client is a fast-growing social shopping platform co-founded by Phoebe Gates and Sophia Kianni. The platform currently serves over 350,000 users and boasts a 90% retention rate. Phia combines community, personalization...SuggestedFull timeH1bRelocationVisa sponsorshipRelocation packageNight shift- ...The role We are hiring for a founding backend software engineer to build the systems that power Hera’s care platform with rigor, reliability, and long‑term scalability. This role is for an engineer who cares deeply about sound systems design, high‑quality architecture...Suggested
$200k - $300k
...Founding Backend Engineer As a Founding Backend Engineer at Overtone, you will build and own the core systems behind a new kind of dating experience—one centered on real-time voice, AI-driven insight, and trust. You'll be joining the founding engineering team, with...Contract workWork at office$150k - $300k
...–1% equity About the Company A Seed-stage AI company (founded 2024, $7.5M raised) building production-grade systems... ...–10 people · Industry: AI Tools. The Role A founding, backend & infrastructure-heavy engineering role on a small, talent-dense team. You'll own production...Full timeH1bWork at officeVisa sponsorship- ...can perform like a 20-year veteran. The engineering challenge is building a platform deeply... ...happen to know the right person. Our founding team We've raised 34M from Accel and... ...role We are hiring for a founding backend software engineer to build the systems that...Work at officeLocal area
$175k - $300k
...300K cash. You will own a meaningful piece of the company. High talent density: Be a part of a great founding team in SF. Shivaal Roy (CTO) was a founding engineer at Glean ($100M+ ARR today) and managed the Assistant and Search teams, where he solved similar problems...- ...perfect job. Hiring.Cafe is building a 100 times better job search engine — fast, comprehensive, honest, and actually useful. We index... ...systems that help people discover opportunities they wouldn’t have found on their own A product where engineering, data, and design...Flexible hours
- A healthcare technology startup in New York is looking for a founding engineer to work on an electronic health record system. In this role, you will focus on backend development, contributing to core services and owning parts of the codebase. Ideal candidates have 4+ years...
- Zania is recruiting a founding software engineer to join our backend team in San Francisco. You will design, build, and deploy scalable backend services powering our core product and the agentic AI platform, with a focus on reliability and security. This role emphasizes...
$150k - $250k
AgentMail (YC S25) is seeking a Founding Engineer in San Francisco to design intuitive APIs and architect high-performance systems. This role requires prior engineering experience and a proven ability to ship software used by real users. The compensation package includes...$140k - $180k
A leading AI software firm in Seattle is seeking founding engineers passionate about changing software development. Ideal candidates have 4+ years of backend API experience, specifically with integrations like GitHub or Jira. The role involves architecting integrations...$150k - $300k
Compound AI seeks exceptional backend engineers in San Francisco to build the data pipelines that drive its AI agents. You will work directly with the founding team to integrate diverse financial data sources, ensuring precise query performance. The ideal candidate has...$130k - $200k
...San Francisco, is looking for a talented engineer to architect and own core systems that... ...leverage expertise in high-performance backend systems, especially in Python, to deliver... ...-paced environment alongside a world-class founding team. #J-18808-Ljbffr Kastle (YC S24)- GetReal Security LLC is seeking a Founding Backend Engineer to design and build secure APIs for enterprise software integration. This role involves constructing a cloud-native product, optimizing database interactions, and implementing best practices in security. The ideal...
- An innovative tech company in San Francisco is seeking a Founding Backend Engineer to build an AI-powered knowledge platform. This role involves shaping product development, defining technical direction, and working on backend systems, APIs, and databases. Candidates should...Flexible hours
- ...with elegant, simple, more intuitive software. About the role As a founding engineer, you’ll work closely with the CTO to realize Pario’s vision and bring our product to market. With a focus on backend development, you’ll be working on the core services that support...Work experience placement
- At Falconer, we’re transforming how engineers create, access, and share knowledge. We’re looking for a Founding Backend Engineer to help us build an AI-powered knowledge platform that companies love. As a founding engineer, you won’t just help shape our product development...Work experience placementWork at officeFlexible hours
- ...Job Description Job Description Our client, a fast-growing AI B2B education startup, is hiring a Founding Backend Engineer to own and lead the core systems that make their AI assistant work. This is a high-ownership, high-autonomy role at a company with real paying...Immediate startFlexible hours
- ...Job Description Job Description Founding Senior Backend Engineer (Data Platform / Integrations) Location: New York City — In-Person The Opportunity Our client is hiring a Founding Senior Backend Engineer to own the data platform end-to-end and build the...
- ...Job Description Job Description We are hiring a Founding Software Engineer in San Francisco. We are building a small, talent-dense team... ...developer experience. Architect, build, and scale core backend systems powering document intelligence and VLM-based workfows...
- HiringCafe, located in Cupertino, California, is on a mission to create a superior job search engine. We prioritize real opportunities and aim to transform how job seekers find their next employment. We are looking for talented individuals with strong programming fundamentals...Flexible hours
- ...rarely produce consequences. Twenty was founded to change that, by making our... ...Tel. Role Summary You'll build the backend systems that power Twenty's cyber and electromagnetic... ...features. Collaborate with frontend engineers on API contracts and data structures...Full timeWork at officeFlexible hours
- ...automate compliant, reference-backed pharma marketing. As a founding full-stack engineer, you’ll own core parts of the application stack, designing... ....co to learn more. What you’ll be working on Backend services & APIs: Build and harden FastAPI services; design...Visa sponsorshipRelocation packageNight shift
- ...Backend Engineer | Legal AI Startup | NYC Primis is partnered with a well-funded, early-stage AI startup in NYC building frontier legal infrastructure for private markets. Founded by a former Law partner, the platform extracts, structures, and reconciles corporate...
- ...Backend Engineer Job Location: Sunnyvale, CA Job Type: Contract Skills Required: ~4-5 years of experience ~ Strong backend skills... ...Us: InterSources Inc, a Certified Diverse Supplier, was founded in 2007, offers innovative solutions to help clients with Digital...Contract work
$135k - $250k
...problem. Backed by Greylock Partners and founded by early Abnormal Security team... ...Your skillset ~3+ years developing backend software ~ Designed, implemented, and... ...We are an AI-native company, and Fable engineers are excited to use AI-powered development...Work experience placementWork at officeRelocation package3 days per week- ...customer codebases and popular open source software. Our founding team includes deep expertise in data, infrastructure, security... ...Infrastructure. About this role: We're seeking an experienced Backend Engineer to lead the charge in building the world's first AI-native...Full timeWork at office
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Founding Backend Engineer. Be the first to apply!
- junior backend developer United States
- c# backend developer United States
- back-end developer United States
- entry level back-end developer United States
- remote back end developer United States
- backend python developer United States
- lead backend developer United States
- senior backend developer United States
- backend software engineer United States
- java developer backend United States



