JobLarper
JobLarperCompaniesPrimer › Software Engineer, Full-Stack

Software Engineer, Full-Stack

Primer — Education · Educational and Training Services (B2C) · Educational Software

San Francisco Mid Posted Jun 16, 2026
TypeScriptSQLReactREST/APIsFull-Stack

About the role

ABOUT PRIMER

Primer is a growing network of K–8 schools restoring the timeless foundations of American education. Inspired by the original teaching primers that shaped a nation of readers, thinkers, and builders, our schools begin with what has always worked, and build for what lies ahead. Close-knit learning environments. Skilled educators. A culture that takes kids seriously as learners and leaders.

Primers shaped the first 200 years of American children. Primer will ready them for the next.

ROLE OVERVIEW

Primer's goal is simple: fix K–12 education in America. We build schools from the ground up — and we run them on something nobody's built before: a single operating system for the entire school. We call it PrimerOS.

It covers real estate, teacher experience, parent experience, the most advanced academic program in the world, our back-office operating stack, and much more. We're looking for exceptional, multidisciplinary engineers to help build it. You'll redesign the school experience around modern technology and ship features that teachers, students, families, and state teams rely on every day. Based out of our sunny office in the Mission District of San Francisco 5 days/week.

WHAT YOU’LL DO

- Work with TypeScript, Node, GraphQL, Prisma, Postgres, Next, React, and Relay. We invest heavily in our DevEx and agent stack.

- Work daily with team members from engineering, product, design, academic program, and executive teams.

- Take ownership of projects. You’ll lead initiatives that shape the entire product, with room to learn and grow along the way.

- Play a key role in setting the foundation for our engineering culture as we grow the team.

- Build quality product. We set a high bar for quality, so expect to work hard to deliver excellence.

WHAT WE'RE LOOKING FOR

- You have an unbridled passion for fixing the US education system. This work is incredibly hard. But if we succeed, it will be the most fulfilling work of our lives. On the days and weeks that it feels like we’re chewing glass, there are only two things that will get you through: a deep passion for fixing this problem, and looking around and seeing a team that shares that passion. We can guarantee the latter, but only you can guarantee the former.

- The unknowns of the early-stage fuel you. You love rolling up your sleeves and figuring out what needs to happen.

- You have a strong grasp of engineering fundamentals and know how to apply them.

- You take immense pride in your craft. Watching a session replay of a user having a bad experience with product you built makes you sick. Every detail matters.

- You have experience and love owning a feature or product from idea to live in production with active users.

Competitive salary plus equity

Benefits: Generous health, dental, vision, and retirement benefits included.

Primer is a mission-first company. We believe our mission is the highest-leverage way we can create positive change. In service of that, we keep work centered on mission execution and avoid social or political activism at work that’s unrelated to the mission. If that energizes you, we’d love to see you apply.

What the index says about this role

  • First seen by JobLarper — Aug 2, 2026, 6 days ago. Older postings collect hundreds of applicants — a tailored résumé matters more the longer a role has been live.
  • No pay range in our index for this listing. Across 164 indexed Full Stack Engineer roles in US that do publish one, the middle half sits between $195k and $278k, median $225k — JobLarper's read of the market, not a figure from Primer.
  • What Full Stack Engineer roles ask for — across 791 indexed openings: Full-Stack (100%), Frontend (66%), Backend (66%), React (65%), REST/APIs (60%). This posting names Full-Stack, React, REST/APIs, TypeScript.
  • Primer is hiring actively — 4 open roles indexed.

Derived from the 27,000 roles JobLarper indexes daily from official company boards — not from the job description above.

⚡ JobLarper watched this role appear on Primer's official board on Jun 16, 2026. Sign up free to get alerted minutes after roles like this go live, and tailor your real résumé to the exact description — nothing invented.

More open roles at Primer

All 4 open roles at Primer →

Similar Full Stack Engineer roles at other companies