AI-Native Senior Software Engineer: End-to-End Impact

FERMÀT; United States; Remote; USD 150,000 - 230,000; Full time

Benefits offered by this job

Competitive salary + equity

Health, dental, and vision insurance

401(k) with matching

Parental leave 4 months

Unlimited PTO

Job summary

FERMÀT is seeking an experienced software engineer to own high‑impact initiatives across our platform, including backend services, APIs, and frontend experiences. We welcome engineers who thrive in ambiguity, have strong product instincts, and ship meaningful features with AI-native workflows.

You’ll operate across stacks, contribute to architecture, and help raise engineering quality and velocity through AI tooling. Join a fast-growing Series B company building AI-enabled commerce experiences.

Qualifications

• 4+ years of professional software engineering experience.
• Experience as a founder, or as an early engineer at a startup.
• AI native workflow: you actively use LLMs and modern coding agents to increase leverage.
• Ability to work across multiple stacks without rigid specialization.
• Strong systems design fundamentals and comfort owning production systems.
• Clear communication and low-ego collaboration.

Responsibilities

• 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.

Skills

Software engineering

Startup experience

AI/LLM tooling

Systems design

Cross-stack development

Communication

Job description

FERMÀT is seeking an experienced software engineer to own high‑impact initiatives across our platform, including backend services, APIs, and frontend experiences. We welcome engineers who thrive in ambiguity, have strong product instincts, and ship meaningful features with AI-native workflows.

You’ll operate across stacks, contribute to architecture, and help raise engineering quality and velocity through AI tooling. Join a fast-growing Series B company building AI-enabled commerce experiences.