Full Stack Software Engineer – Data & AI Systems

Henderson Scott is recruiting for an unnamed early-stage AI company in New York. The Full Stack Software Engineer will build data-intensive backend systems and workflows that support LLMs, agents, and AI applications, while working with founders and users to deliver production software.

Responsibilities

Build backend services and data-intensive systems end-to-end

Design scalable ingestion and processing workflows

Work with event-driven and distributed architectures

Build the systems that feed LLMs, agents and AI workflows

Make decisions around storage, retrieval, reliability and performance

Work directly with founders and users to understand real problems

Turn loosely defined requirements into working production software

Use modern AI development tools to build, test and iterate quickly

Preferred

Experience in a startup, founding team or 0→1 environment would be useful, but it isn't essential

Startup Experience

Founding Team Experience

0-to-1 Experience

Benefits

Equity

Hybrid work in New York City

Company

Professional recruitment agency for technology, legal, marketing, sales, and finance.

London, England, GBR

https://www.hendersonscott.co.uk/

Founded in 1999

51-200 employees

Qualifications

Strong hands-on software engineering experience

Python and modern backend development

Experience building systems that process significant amounts of data

Strong system design and architecture skills

Experience with technologies such as Kafka, Spark, Airflow, Databricks or similar

Experience building with LLMs, RAG, agents or agentic workflows

Comfortable with tools such as Claude Code, Cursor, Copilot or similar

Able to work independently and make good technical decisions without everything being defined upfront

They're much more interested in finding a strong engineer who can build software, reason deeply about data and systems, and apply modern AI in production

Experience in a startup, founding team or 0→1 environment would be useful, but it isn't essential

Required skills

AI Agents, Apache Airflow, Apache Spark, Backend Development, Claude Code, Cursor, Databricks, GitHub Copilot, Kafka, Large Language Models (LLMs), Python, Represents the skills you have, Retrieval-Augmented Generation (RAG), System Design, click on the tags