Founding Senior Software Engineer

Farsyt; Cambridge (MA); On-site; USD 100,000 - 130,000; Full time

Benefits offered by this job

Health/Dental/Vision

401k

PTO

Relocation

Job summary

Farsyt is seeking an experienced engineer to join their founding technical team in Cambridge, MA. The role involves architecting and building core systems and AI-powered workflows, shaping the company’s direction. Ideal candidates will have over 5 years of experience in backend engineering, particularly with Python, and familiarity with cloud infrastructure. Farsyt offers competitive salary, equity, and benefits including health, dental, and PTO, emphasizing in-office collaboration.

Qualifications

• 5+ years building production systems.
• Experience with Python or similar backend technologies.
• Comfortable operating in ambiguity and moving quickly.

Responsibilities

• Architect and build core systems including backend and APIs.
• Design AI-powered workflows that replace manual operations.
• Make foundational technical decisions that define the company.

Skills

Backend engineering skills

Experience with cloud infrastructure

Strong systems thinking

Product intuition

Experience with modern AI tooling

Tools

Python

Django/DRF

FastAPI

React/TypeScript

PostgreSQL

AWS

Docker

Job description

Company Description

Farsyt is an AI-native insurance services company reimagining how insurance is bought, sold and operated - using automation, data and AI from the ground up.

Small team, high ownership, fast pace, venture-backed. This role is for someone who wants to take real ownership, move quickly, and build systems that matter.

Role Description

You’ll work directly with the founders to build the core product from zero to one.

• Architect and build core systems (backend, APIs, data models)
• Design AI-powered workflows that replace manual operations
• Integrate with fragmented, unreliable real-world systems (external tools, documents, communication layers)
• Build production-grade automation systems powered by LLMs (reliability, evaluation, and failure handling matter)
• Design and operate asynchronous, event-driven systems (queues, workers, long-running tasks)Ship fast — from idea → production in days, not months
• Make foundational technical decisions that define the company

There are no rigid specs. You’ll help define what gets built and how.

Qualifications

• 5+ years building production systems
• Strong backend engineering skills — you’ve built and scaled real systems (we use Python, but care more about depth than specific frameworks)
• Experience with cloud infrastructure (AWS, GCP, or similar)
• Experience building systems from scratch
• Comfortable operating in ambiguity and moving quickly
• Experience with modern AI tooling (LLMs, RAG, agent frameworks) and an understanding of making them reliable in production (evaluation, structured outputs, failure handling)
• Strong systems thinking — you think beyond individual features
• Product intuition — you care about what gets built, not just how

Bonus

• Experience with voice, email, or messaging systems
• Familiarity with fintech, insurance, or regulated environments

Technical Stack

Python (Django/DRF, FastAPI), React/TypeScript, PostgreSQL, Redis, Celery, AWS, Gemini/OpenAI/Anthropic APIs, Pydantic AI/LangChain, Docker

The Team

You’d be joining the founding technical team, with direct input into what gets built and how. The people who join now will shape the company in ways that won’t be possible later.

Why this role?

• You’ll be one of the first engineers — your decisions will shape the company
• Direct access to founders, no layers
• Real problems, not toy demos
• A massive, outdated industry ready to be rebuilt

Compensation

• Competitive salary & equity
• Benefits
  • PTO
  • Health/Dental/Vision
  • 401k
  • Relocation

Location

Cambridge, MA

In-office, 5 days/week — we believe early-stage teams build best in person.

Don’t meet every requirement?

If you’re excited about the role but don’t check every box, we still encourage you to apply. We’re open to candidates across a range of experience levels, including those who may be more senior than this role suggests.

We are an equal opportunity employer and value diversity at our company.