Senior Python Backend Engineer — AI & LLMs (Hybrid, NYC)

Pyyne Llc.; New York (NY); Hybrid; USD 140,000 - 190,000; Full time

Benefits offered by this job

Hybrid work 3 days in office

Career development opportunities

401(k) with match

Healthcare plan with Vision & Dental

Job summary

Pyyne seeks a Sr. Backend Engineer in New York to design and build the Python backend of an AI-powered solution for a private equity client.

You will work hands-on with LLM-based systems, architect multi-step agent workflows, and ensure reliable data ingestion and scalable backend services. This hybrid role requires strong collaboration with a small cross-functional team, and you will translate business needs into technical designs while maintaining security and performance.

Qualifications

• 3+ years of strong Python backend engineering (FastAPI, SQL), with hands-on work in AI systems.
• Production experience building with LLMs and agentic systems.
• Strong mental model of the Generative AI space: can compare models and frameworks and decide when and how to use LLMs.
• Stakeholder management with technical teams and non-technical business leaders, ideally in a client-facing or consulting role.
• Experience working in structured, production environments.

Responsibilities

• Build and extend the Python backend of an AI-powered solution for a private equity client
• Integrate LLMs and agentic workflows into backend services, including multi-step agent design
• Build and optimize data ingestion pipelines that bring external data sources into the application layer
• Collaborate closely with a small cross-functional team (frontend, DevOps, full-stack) to ship features end-to-end
• Meet production standards for reliability, performance, and data integrity
• Translate business needs from non-technical stakeholders into technical designs, and explain tradeoffs clearly
• Present your work with confidence and earn the client's trust through clear, credible communication
• Take ownership of backend delivery with minimal oversight and contribute to architectural decisions

Skills

Python Backend

FastAPI

SQL

LLMs

Agentic workflows

Stakeholder mgmt

Job description

Pyyne seeks a Sr. Backend Engineer in New York to design and build the Python backend of an AI-powered solution for a private equity client.

You will work hands-on with LLM-based systems, architect multi-step agent workflows, and ensure reliable data ingestion and scalable backend services. This hybrid role requires strong collaboration with a small cross-functional team, and you will translate business needs into technical designs while maintaining security and performance.