Senior Software Engineer (£100,000-£120,000 + Equity) at VC-backed AI data platform

Jack & Jill/External ATS; Greater London; On-site; GBP 100,000 - 120,000; Full time

Job summary

A dynamic tech firm in London is seeking a Senior Software Engineer to shape and scale their AI-native data pipelining platform. The role involves designing and implementing scalable backend features with a strong focus on Python and FastAPI while collaborating closely with customers to enhance product experiences. The ideal candidate boasts over five years of full-stack development experience and strong AWS knowledge. This position offers a unique opportunity to influence product culture in a high-velocity environment.

Qualifications

• Over five years of professional experience building and shipping full-stack products.
• Mastery of Python and backend system design.
• Experience in AWS cloud environments.

Responsibilities

• Design, implement, and maintain scalable backend features using Python and FastAPI.
• Build exceptional product experiences by collaborating closely with customers.
• Scale the core declarative framework for data efficiency.

Skills

Python

Backend system design

AWS cloud environments

Containerization

CI/CD best practices

Job description

Senior Software Engineer

Location: London, UK

Salary: £100,000-£120,000 + Equity

Company Description: VC‑backed AI data platform

This is a Senior Software Engineer position where you will build and scale the core experience of an AI-native data pipelining platform. You will implement features across the full stack, with a heavy focus on backend systems, while owning projects end‑to‑end. This role is critical for shaping the infrastructure that data teams use to manage complex lifecycles.

Why this role is remarkable

• Impactful founding‑team environment where you will directly contribute to shaping the product culture and strategy from the ground up.
• Backed by top‑tier VCs from San Francisco, New York, and London, providing significant runway and global market reach.
• High‑velocity engineering culture that deploys to production multiple times daily using a modern, serverless cloud‑native tech stack.

What you will do

• Design, implement, and maintain scalable backend features using Python and FastAPI while owning the full development lifecycle.
• Build exceptional product experiences by collaborating closely with customers to understand their pain points and data orchestration needs.
• Scale the core declarative framework to ensure robust data observability and pipelining efficiency for enterprise‑grade data teams.

The ideal candidate

• Over five years of professional experience building and shipping full‑stack products with a mastery of Python and backend system design.
• Proven track record working in AWS cloud environments with a strong understanding of containerization and CI/CD best practices.
• Fast‑paced generalist with an opinionated approach to shipping high‑quality code and conducting experiments to drive product growth.

Next steps

1. Visit our website.
2. Click "Talk to Jack."
3. Talk to Jack so he can understand your experience and ambitions.
4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
5. If Jill thinks you’re a great fit and her client wants to meet you, they will make the introduction.
6. If not, Jack will find you excellent alternatives. All for free.