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.

About the Role:

As a Team Lead on our Platform team, you will lead and manage the team building the foundational infrastructure that powers our entire commerce ecosystem. You'll play a pivotal role in transforming our platform architecture to support rapid scaling, owning the core systems that serve our external users (agencies, brand partners, and self-serve customers) while enabling internal teams to build and ship features with greater speed and confidence. At this exciting inflection point, you'll help scale our backend platform to support an order of magnitude increase in brands, usage, and products.

Your work will directly impact every engineering team at FERMÀT as they interact with and leverage the platform you build. You'll strike the perfect balance between shipping new capabilities quickly and establishing sustainable infrastructure that can handle our ambitious growth plans. This is a unique opportunity to shape the technical direction of our platform while creating intuitive, self-serve functionality that allows our customers to scale their experimental operations with minimal friction.

Responsibilities:

• Design and implement scalable backend services powering our AI-driven personalization engine

• Manage and grow a small team of 4 engineers, ensuring both velocity and quality

• Architect robust solutions across our platform stack—including cart functionality, checkout flows, and offer management

• Collaborate with product teams to transform manual processes into self-serve capabilities

• Coach engineers to maximize their impact and growth

• Partner with internal stakeholders and customer-facing teams to ship critical features

Requirements:

• 7+ years of experience in software engineering, including 1+ years in managing a team

• Proficient in Go, Python, or other modern backend languages

• Strong understanding of distributed systems design and scaling microservices

• Deep knowledge of API design principles and best practices

• Familiarity with data warehouses and other storage systems (relational databases, key-value stores, cloud buckets, etc.)

• Comfortable discussing and debating strategic engineering and product decisions

• Thrive in ambiguity and rapid change

• Energized by startup momentum and take ownership in transforming complex challenges into elegant solutions

Nice to Haves:

• Experience with GraphQL API design

• Familiarity with containerization and orchestration (Docker, Kubernetes)

• Previous experience in eCommerce or AdTech domains

• Experience with subscription-based payment models

Tech Stack:

• Golang

• TypeScript

• React

• Next.js

• Postgres

• Google Cloud

Benefits

• 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!)