Senior Python Developer

Truss

United States

Remote

USD 180,000 - 240,000

Full time

8 days ago

Application generator

Stand out for this role — generate a tailored resume and cover letter in about a minute.

Get past ATS filters

Job summary

Truss is building a new insurance platform for a US specialty insurer. You’ll lead the backend, shape the data model, and build most of it with a small team. The work is fast and aided by AI coding tools, with regular demos to the client.

You’ll design a policy ledger, a configurable rating engine, and an event-driven background system with Celery, connecting to about 20 vendors. Expect a hands-on leadership role as the system goes live in early 2027 and the old data migrates safely.

Qualifications

7+ years of backend engineering experience, primarily in Python.
Built systems from scratch and owned them in production.
Experience with FastAPI, Celery, PostgreSQL, and cloud deployment.
Experience with AWS, Docker, Terraform, and CI/CD workflows.
Strong English communication to interface with client weekly.

Responsibilities

Design the core policy ledger and audit trail.
Build a configurable rating engine.
Develop background tasks with Celery for billing and renewals.
Create integration layer to ~20 external vendors.
Migrate legacy data without data loss.
Set standards, review code, keep team unblocked.

Skills

Backend engineering

Python

English communication

AI coding tools awareness

Tools

FastAPI

Celery

PostgreSQL

AWS

Docker

Terraform

Job description

You'll lead the backend. The design and data model are still open, so you'll shape them, then build most of it alongside a small team. The work is LLM-assisted and moves fast, and you'll demo it to th

About the employer

We’re building a new insurance platform for a US specialty insurer, to replace the legacy system that runs their whole business today. It covers quoting, rating, policies, billing, claims, agency management and the vendor integrations around them. The first program goes live on the new platform in early 2027, and the existing book moves over a few months later.

You’ll lead the backend. The design and data model are still open, so you’ll shape them, then build most of it alongside a small team. The work is LLM-assisted and moves fast, and you’ll demo it to the client every few weeks.

What will you work on?

Design the core: a policy ledger with effective-dated changes, endorsements, cancellations and renewals, plus an audit trail that records every change
Build a configurable rating engine. Underwriters change rates and rules through configuration instead of code changes
Build background work with Celery: billing schedules, renewal batches, notices, and an event pipeline that stays reliable under load
Connect the platform to around 20 outside vendors (payments, property data, e-signature, print and mail) behind one integration layer
Migrate years of policy, billing and claims data out of the old system without losing a cent
Set the standards, review the code, and keep the team unblocked

What skills and experience are we looking for?

7+ years of backend engineering, most of it in Python
Production FastAPI (or a similar framework), Celery or another task queue, and PostgreSQL you’ve tuned and modeled yourself
You’ve designed a system from scratch and owned it in production
AWS in production, with Docker, Terraform (or similar) and CI/CD you set up
Experience with financial or transactional data: ledgers, money, dates that matter
You use AI coding tools every day and know where they go wrong
Clear spoken and written English. You’ll talk to the client most weeks
Insurance experience is a plus, not a requirement