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FERMÀT Logo

Staff Software Engineer, Core Product

FERMÀT

Salary not specified
Nov 5, 2025
San Fransisco, CA, US
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FERMÀT is looking for a Senior/Staff Software Engineer to help architect and build enterprise product offerings, scale infrastructure to handle significant growth, build delightful UX, and leverage AI agents for personalization.

Requirements

  • 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)
  • GraphQL API design experience
  • Containerization and orchestration expertise (Docker, Kubernetes)
  • Golang • TypeScript • React • Next.js • PostgreSQL • Google Cloud

Responsibilities

  • 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
  • Scale our infrastructure to handle 10x growth in traffic and transaction volume

Other

  • 6+ years of professional software engineering experience
  • 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
  • Background in eCommerce or adtech