Demo

Senior Backend Engineer

Conversion
San Francisco, CA Full Time
POSTED ON 12/27/2025
AVAILABLE BEFORE 2/19/2026
About Us

Conversion is building the AI-native marketing automation platform for modern software companies. Today, marketing is stitched together from outdated software, enrichment tools, and disconnected workflows. Funnels are broken. Messaging is misaligned. Most teams are flying blind.

We’re fixing that. Conversion lets growth teams build and automate their entire go-to-market motion in one place. From acquisition to activation to retention, it’s all managed in a single interface: fast, personalized, and powered by AI.

We’ve raised over $28 million from top firms such as Abstract Ventures, True Ventures, and HOF Capital. We’re at $5M ARR, growing quickly, and powering go-to-market for 4000 customers.

We’re a lean, high-performing team in San Francisco. If you’re excited about building creative, modern, product-led marketing and doing your best work alongside world-class teammates; we’d love to meet you.

  • Over $28M in funding
  • $0 to $6M ARR in under 12 months, 4000 customers
  • Elite team from Airbnb, Palantir, Pinterest, IMC Trading, Shopify, Linkedin, Microsoft, and more

About the Role

Hey there! James here 👋, co-founder and CTO at Conversion. Just wanted to share my thoughts on the perfect candidate we're looking to join our engineering team.

First off, I want to stress the technical difficulty and scale of what we're building here at Conversion. The reason marketing automation platforms haven't seen a new player in decades is because building one is hard. Our platform needs to handle gigabytes of data syncs per customer with the utmost reliability, coordinate complex workflows that automate mission critical "go-to-market" processes, handle form submissions that directly generate revenue for customers, and serve high delivering emails to millions of our customer's recipients.

With that being said, here's what we're looking for in a backend software engineer to join our core team:

  • Product focused: There is quite a bit of features that go into a marketing automation platform, and so we're looking for folks that can own entire products and scope out, design, and build features end to end. We believe the best PMs are engineers who understand the pain point, since they can best evaluate both the benefit and the cost of building a feature.
    • P.S. if you prefer building the systems that power our infrastruture, check out our Platform Engineering role!
  • Love building for customers: We at Conversion are extremely close with customers- every customer gets their own Slack channel in our organization for faster communication, and we add every engineer to the channel to directly answer questions, fix bugs, and build features! You feel the urgency much more when you hear it directly from the end user.
  • Intellectually curious: Conversion engineers are group of bright-eyed and constantly curious individuals, who love debating database designs (or if we'd win in a fight against an ostrich) at lunchtime.

This role is in-person 5 days/week in San Francisco.

You Might Be a Good Fit If You

  • Have a few years of relevant industry experience building robust and reliable systems
  • Have a startup mindset - Scrappy, intelligent, and entrepreneurially minded individuals interested in joining a fast paced startup and looking for early ownership and growth
  • Have experience with our tech stack: Golang in the backend, a job queuing system with Kafka, PostgreSQL as our database and cloud hosting with GCP

You Might Be a Great Fit If You

  • Often on tech Twitter
  • Track record of side projects, apps, hackathons. Our engineers have built a live streaming security system for their parent's new house, a database from scratch, a better "Splitwise" app, and hosted our Minecraft server, all while at Conversion!

Useful links

Website: https://conversion.ai/

Learn more about our company culture here: https://conversion.ai/careers

  • Check out out this Next Play article about our team! https://nextplayso.substack.com/p/how-a-big-pivot-helped-this-company

Engineering blog: https://conversion.ai/blog

Compensation Range: $200K - $500K

Salary : $200,000 - $500,000

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