Staff/Senior Fullstack Engineer at VC-backed AI investment tech startup

Jack & Jill/External ATS; Greater London; On-site; GBP 125,000 - 150,000; Full time

Job summary

A leading AI investment tech startup in London seeks a Software Engineer to join their ambitious team. You'll design and implement AI-driven capabilities, integrate diverse data sources, and maintain code excellence for scalable solutions. Candidates should have over 4 years of experience in software engineering with proficiency in Python, FastAPI, and React. This role offers the chance to impact a high-growth venture while collaborating closely with a founding team of industry experts.

Qualifications

• 4+ years of software engineering experience at a venture-backed startup or top-tier technology firm.
• Deep proficiency in Python, FastAPI, and React.
• Experience in taking products from ideation to production.

Responsibilities

• Design and implement new agentic capabilities for investment expertise.
• Integrate diverse data sources into automated analyses.
• Ensure high velocity and scalable document ingestion pipelines.

Skills

Python

FastAPI

React

Software engineering

Data analysis

Job description

Company Description

VC-backed AI investment tech startup

Job Description

Join an ambitious engineering team building an AI-native platform that streamlines complex data analysis and due diligence workflows for high‑stakes investment firms. You will own features end-to-end, from architecting agentic frameworks to refining user interfaces. This role is pivotal in scaling a product that has seen significant enterprise adoption within its first year.

Location

London, UK

Why this role is remarkable

• Direct impact on a high-growth venture while working closely with a founding team of industry experts.
• Build sophisticated, streaming-first agent frameworks and finance-focused toolkits using cutting-edge LLM technologies.
• Significant career progression opportunities in a fast-paced environment backed by top-tier venture capital and prominent industry executives.

What you will do

• Design and implement new agentic capabilities that replicate high-level investment expertise and complex document authoring.
• Expand connectivity by integrating diverse data sources into the agent loop to enhance the depth of automated analyses.
• Maintain rigorous code standards and engineering excellence to ensure high velocity and scalable document ingestion pipelines.

The ideal candidate

• Has 4+ years of software engineering experience at a venture-backed startup or top-tier technology firm.
• Possesses deep proficiency in Python, FastAPI, and React, with a track record of taking products from ideation to production.
• Thrives in a fast-paced, high-ownership environment and enjoys solving complex domain problems to deliver customer value.