Software Engineer, Core Product

FERMÀT is the AI native commerce platform that optimizes shopping experiences, leading to best-in-class shopper engagement and conversion. We help brands transform clicks into conversions with dynamic, personalized shopping experiences—built and optimized in minutes.

Backed by VMG, Bain Capital Ventures, Greylock, QED, and named The Information’s #1 commerce startup, we’re a 70+ person team based in SF, Austin, NYC, and Bangalore. As a fast-growing Series B company, we’re building the infrastructure for the future of online retail—and we’re just getting started.

We're looking for a Full Stack Engineer to join our team building FERMÀT's enterprise product offerings. You'll work across our tech stack to:

• Build scalable features that handle millions of shoppers and thousands of merchants

• Create intuitive UX that makes complex commerce workflows feel simple

• Work with AI to help personalize shopping experiences at scale

This role offers significant growth potential - you'll work alongside senior engineers who are invested in your development while taking on meaningful ownership of features that directly impact customers. You'll be in our San Francisco office collaborating with a talented team that values learning, experimentation, and shipping quality code.

• Build and ship full-stack features for our enterprise product lines

• Write clean, tested code across our platform - from frontend components to backend services

• Collaborate with product and design to understand requirements and propose solutions

• Participate in code reviews and learn from feedback to continuously improve your craft

• Work with customer-facing teams to understand user needs and iterate on solutions

• Help maintain and improve our existing codebase and infrastructure

• Opportunity to level up your skills working with experienced engineers on challenging problems

• Meaningful ownership where your work directly impacts customers

• Fast-paced environment where you can ship code frequently and see real results

• Team that invests in your growth through mentorship, feedback, and increasing responsibility

• 2-4 years of professional software engineering experience

• Solid foundation in at least one backend language (Go, Python, Node.js, or similar)

• Experience building web applications with modern frontend frameworks (React, Vue, Angular)

• Understanding of API design and RESTful services

• Familiarity with relational databases and SQL

• Strong problem-solving skills and attention to code quality

• Excitement about learning new technologies and taking on challenges outside your comfort zone

• Collaborative mindset—you work well with others and communicate clearly

• Experience with TypeScript or Go

• Exposure to distributed systems or microservices architecture

• Background in eCommerce, payments, or adtech

• Contributions to open source projects or personal projects you're proud of

Golang • TypeScript • React • Next.js • PostgreSQL • Google Cloud

Don't worry if you haven't used all of these - we'll help you ramp up on our stack. What matters most is your ability to learn quickly and write quality code.

You'll spend most of your time coding - building features, fixing bugs, and improving existing code. You'll participate in daily standups, collaborate with your team on design decisions, and pair program with senior engineers who can help you grow. You'll ship code multiple times per week and see your work go live to real customers quickly.

• Technical depth: Work on distributed systems, high-scale infrastructure, and AI-powered features

• Full-stack breadth: Gain experience across our entire stack from database to UI

• Product thinking: Learn how to balance technical decisions with customer needs

• Mentorship: Regular 1:1s with senior engineers focused on your growth and career development

We're committed to helping you grow into a senior engineer. You'll get regular feedback, increasing ownership of complex features, and opportunities to lead technical decisions.

• Competitive salary + equity package

• Comprehensive health, dental, and vision insurance for you and all your dependents.

• Retirement benefits:

  • US: 401(k) plan with 4% matching

  • India: Provident Fund with 12% matching

• 4 months of paid parental leave

• Unlimited PTO policy (with minimum 5 days PTO / quarter!)