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Founding Backend Engineer Jobs (NOW HIRING)

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'll have a major impact on our product development ...

... founding or early engineer at a Seed or Series A company. -- Advanced systems expertise including PostgreSQL, async processing, and building agentic LLM-powered automation workflows.

Backend Engineer

San Francisco, CA · On-site

$120 - $180/hr

Experience at early-stage companies (pre-Series D) within the last 4 years; founding engineer experience is a plus * Proficiency in modern backend languages, preferably TypeScript * Background ...

Lunar Labs is the founding team behind leading lending app Moonwell and finance agent Mamo. As a Backend Engineer, you will enhance the data infrastructure and ensure reliable, real-time information ...

About the role We're hiring a founding Senior Backend Engineer to help us design, develop, and ship robust backend systems that deliver exceptional value to our members. You'll work closely with our ...

They are seeking a founding Senior Backend Engineer to design, develop, and ship robust backend systems that deliver exceptional value to their members, working closely with founders, engineers, and ...

As one of the founding members of our team, you will play a critical role in shaping our product ... Have 5+ years of experience as a backend engineer developing and deploying production-level backend ...

Backend Engineer

San Francisco, CA · On-site

$120K - $200K/yr

Our founding team includes experienced entrepreneurs with prior exits, and our culture is fast ... bonus) As a Backend Engineer , you'll contribute directly to the core of our product and ...

Our founding team includes experienced entrepreneurs with prior exits, and our culture is fast ... bonus) As a Backend Engineer , you'll contribute directly to the core of our product and ...

Senior Backend Engineer

New York, NY · On-site

$175K - $225K/yr

Founding Software Engineer Package: $175K - $225K + meaningful equity Location: New York City (5 ... The role is heavily backend-focused, with exposure to product, customer workflows, infrastructure ...

Showing results 21-40

Founding Backend Engineer information

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$60.5K

$147.7K

$199K

How much do founding backend engineer jobs pay per year?

As of Aug 27, 2026, the average yearly pay for founding backend engineer in the United States is $147,662.00, according to ZipRecruiter salary data. Most workers in this role earn between $124,000.00 and $172,000.00 per year, depending on experience, location, and employer.
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Infographic showing various Founding Backend Engineer job openings in the United States as of August 2026, with employment types broken down into 94% Full Time, 2% Part Time, and 4% Contract. Highlights an 85% Physical, 5% Hybrid, and 10% Remote job distribution, with an average salary of $147,662 per year, or $71 per hour.

Founding Engineer, Backend

San Francisco, CA • On-site

$150K - $250K/yr

Full-time

Retirement

Re-posted 9 days ago


Job description

At Falconer, we're transforming how engineers create, access, and share knowledge with each other and their AI agents. 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'll have a major impact on our product development, technical direction, and culture.
Key responsibilities:
  • Participate in the entire product development lifecycle, including architecture, coding, testing, and deploying
  • Research and apply best practices in terms of infra, deployment, and containerization of our products and ML stack
  • Develop and maintain backend systems including API services, databases, and server-side logic
  • Optimize applications for maximum speed and scalability
  • Write clean, efficient, and well-documented code, following industry best practices-the Falconer platform will help you!
  • Stay updated with emerging technologies in web development and make recommendations for adopting new tools and practices

Who you are:
  • Degree in Computer Science, Engineering or a related field, or equivalent work experience
  • Minimum of 5 years of experience in developing APIs or backend systems in different languages (we'll gravitate towards Python and Node.js)
  • You can evaluate trade-offs and propose the most appropriate storage solution (SQL, NoSQL, Vector DBs)
  • You have experience with event queues such as Kafka or RabbitMQ
  • You make containers look simple, and are the go-to person to discuss Docker or Kubernetes
  • You can make anything run in AWS or Google Cloud
  • You enjoy hard problems and open-ended assignments
  • You use data to make decisions, and experiment your way around hard problems

Bonus points:
  • You've developed products with LLMs before (extra if you've already built your own agents)
  • You're familiar with vector databases and similarity search

Perks and benefits:
  • Generous equity package
  • Competitive salary and benefits
  • 401(k) retirement account
  • The best equipment and tools, like a spec'd out MacBook, and dev prod tools like Cursor, Claude, and Linear to help you move fast
  • Flexible work arrangements with in-office work or hybrid work for the right candidate
  • Our office is in San Francisco, just steps from Caltrain

At Falconer, we value diversity and equal opportunities. We welcome applicants from all backgrounds and are committed to creating an inclusive workplace. If you are passionate about technology and thrive in a challenging environment, come join our team and help us shape the future of work communication.