Staff Software Engineer, Fermat Commerce
Core Product
Plus equity
AI native commerce platform
Be an early applicant
AI native commerce platform
21-100 employees
Be an early applicant
Plus equity
21-100 employees
Company mission
To provide lighting-fast creation of high-converting, dynamic shopping experiences.
Role
Who you are
- 6+ years of professional software engineering experience
- Strong experience with Go, Python, or similar modern backend languages
- Proven track record designing and scaling distributed systems and microservices
- Deep understanding of API design principles and best practices
- Hands-on experience with data warehouses and diverse storage systems (relational databases, key-value stores, cloud storage)
- Ability to drive strategic engineering and product discussions
- Comfort with ambiguity, rapid iteration, and pivoting based on learnings
- Ownership mindset - you're energized by startup momentum and turning complex problems into elegant solutions
Desirable
- GraphQL API design experience
- Containerization and orchestration expertise (Docker, Kubernetes)
- Background in eCommerce or adtech
- Experience with subscription-based payment models
What the job involves
- We're looking for a Senior/Staff Software Engineer to help architect and build FERMÀT's enterprise product offerings. You'll work across our tech stack to:
- Scale our infrastructure to handle 10x growth in traffic and transaction volume
- Build delightful UX for millions of shoppers interacting with our storefronts
- Leverage AI agents to personalize experiences across millions of product SKUs
- This is a 0-to-1 opportunity where you'll tackle complex technical challenges while working directly with customers to shape a new business line
- You'll join an exceptional engineering team in our SF office, leading technical direction while building, iterating, and having fun
- Design and implement scalable full-stack solutions for enterprise product lines
- Lead technical direction for a team of 4 engineers, balancing velocity with quality
- Architect robust systems across our platform - including cart, checkout, and offers management
- Transform manual workflows into self-serve capabilities in collaboration with product teams
- Mentor engineers to accelerate their impact and growth
- Partner closely with internal stakeholders and customer-facing teams to ship critical features
- Our Tech Stack:
- Golang
- TypeScript
- React
- Next.js
- PostgreSQL
- Google Cloud
- You'll spend roughly 60% of your time coding and reviewing code, 20% in collaborative design discussions and planning sessions, and 20% working directly with product managers and customers to refine requirements
- You'll ship meaningful features weekly and see immediate impact on customer outcomes
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.
The eCommerce ecosystem has seen recent change with privacy policies, like the recent Apple privacy shift that prevents third-party cookie tracking, massively increasing the cost of discovering new customers. CEO, Rishabh Jain, was well placed to tackle this industry problem coming from LiveRamp. He understood the necessity of allowing brands to effectively scale first-party interactions and own 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.
Salary benchmarks
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