Senior Software Engineer, Fermat Commerce

Salary not provided

+ Equity package

React

TypeScript

GCP

Python

Kafka

WebSocket

Senior and Expert level

San Francisco Bay Area

AI-native commerce platform

Open for applications

AI-native commerce platform

21-100 employees

B2BArtificial IntelligenceMarketingSaaSSocial MediaConsumer Goods

Open for applications

Salary not provided

+ Equity package

React

TypeScript

GCP

Python

Kafka

WebSocket

Senior and Expert level

San Francisco Bay Area

21-100 employees

B2BArtificial IntelligenceMarketingSaaSSocial MediaConsumer Goods

Company mission

To provide lighting-fast creation of high-converting, dynamic shopping experiences.

Job

Company

Role

Who you are

We’re especially interested in engineers who are AI-native in their workflow. You use modern AI tools to increase velocity, improve quality, and explore solutions faster. You have strong product instincts, operate with high agency, and care deeply about shipping meaningful outcomes
4+ years of professional software engineering experience
Experience as a founder, or as an early engineer at a startup
Strong product sense and a track record of shipping meaningful features or products
AI native workflow: you actively use LLMs and modern coding agents to meaningfully increase leverage
Ability to work across multiple stacks without rigid specialization
Strong systems design fundamentals and comfort owning production systems
High agency, strong judgment, and comfort operating in ambiguity
Clear communication and low-ego collaboration

What the job involves

We’re looking for exceptional engineers who can operate across teams, stacks, and problem spaces, and turn ambitious ideas into production-grade systems
This is not a narrowly scoped, team-specific role. You’ll work wherever impact is highest across our platform: core infrastructure, customer-facing features, data systems, internal tooling, or new product initiatives
Own high-impact initiatives from concept through production
Design and build scalable backend services, APIs, and frontend experiences
Prototype quickly and iterate based on user feedback and business impact
Move fluidly across different parts of the stack as company needs evolve
Improve engineering quality and velocity through thoughtful use of AI tooling
Contribute to architectural decisions and help raise the bar across engineering

Application process

Please include GitHub, side projects, demos, or write-ups of products you’ve built. We prioritize engineers who consistently ship

Our take

The rise of social media has awarded substantial social currency to influencer culture. Fermàt Commerce enables brands to embed shopping inside of influencer content, allowing consumers to do their online shopping whilst engaging with their daily content.

Recently, with the prevention of third-party cookie tracking, the eCommerce ecosystem has found it harder and more costly to discover new customers. Fermat is well placed to tackled this industry problem, allowing brands to effectively scale first-party interactions and own their first-party data.

Although relatively young, Fermàt’s integrated and frictionless solution for brands and influencers alike has raised multiple rounds of funding. This capital will see operations scale up, further product development, and increased partnerships, akin to that with Shopify.

Freddie

Company Specialist at Welcome to the Jungle

Company

Funding (last 2 of 3 rounds)

Jun 2025

$45m

SERIES B

Mar 2024

$17m

SERIES A

Total funding: $74m

Company HQ

China Basin, San Francisco, CA

Leadership

Rishabh Jain

(Co-Founder & CEO)

Previously co-founded OpenLab app and Invisergy, acting as CEO for both. Spent nearly 6 years at LiveRamp, eventually as Vice President/Head of Innovation and New Business Initiatives.

Shreyas Kumar

(Co-Founder & CTO)

Spent over 7 years at LiveRamp, eventually as Senior Director of Engineering. Studied and taught at Harvey Mudd College until 2014.

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