Senior Software Engineer

twentyAI; New York (NY); On-site; USD 120,000 - 180,000; Full time

Job summary

twentyAI in New York is seeking an engineer who thrives on ownership to work across backend, APIs, data, and customer-facing product.

You will partner with founders to turn messy healthcare workflows into software that delivers real patient impact, building scalable backend services, APIs and data systems while shaping architecture as the platform grows.

You will collaborate with non-technical teams and help establish engineering culture as the team expands.

Qualifications

• 2-10+ years of experience building production software.
• Strong Python and full-stack comfort.
• Excellent problem solving and ownership.

Responsibilities

• Own projects from idea through to production
• Build and scale backend services, APIs, data systems and product features
• Make architecture decisions as the platform grows
• Improve reliability, scalability and observability
• Help shape engineering culture as the team expands

Skills

Python

Backend development

APIs

Data systems

Product mindset

Job description

We’re working with a fast-growing AI healthtech company using automation to make medication access simpler for patients and providers.

About the Role

High-ownership role for an engineer who likes working across backend, APIs, data and customer-facing product.

You’ll work closely with founders, product and operations to turn messy healthcare workflows into software that actually makes a difference.

What You’ll Do

• Own projects from idea through to production
• Build and scale backend services, APIs, data systems and product features
• Make architecture decisions as the platform grows
• Improve reliability, scalability and observability
• Help shape engineering culture as the team expands

You’ll Be Great At This If You

• Have 2-10+ years of experience building production software
• Are strong in Python and comfortable across the stack
• Like ambiguity, ownership and solving properly hard problems
• Have good systems judgement and strong product instincts
• Can work well with non-technical teams and drive work forward independently

Nice to Have

• Healthtech, workflow automation or early-stage startup experience
• Experience with AI-native products or agents

Why Join?

• Meaningful product with real patient impact
• Proper influence on technical and product direction