Senior Software Engineer

Pulse Group; Greater London; On-site; GBP 110,000 - 140,000; Full time

Benefits offered by this job

Equity

Job summary

Pulse Group is partnering with a fast-growing AI startup in London to hire a Backend Engineer. The role offers genuine ownership and the opportunity to work directly with the CTO and founders on an AI-native product.

You’ll build backend infrastructure and APIs, make architectural decisions, and tackle scaling challenges. Expect involvement with Celery-based background tasks, LLM integrations, and RAG pipelines, taking features from idea through production.

Qualifications

• 5+ years of backend engineering experience with Python/Django.
• Strong ownership of production systems.
• Experience with APIs and scalable backend infrastructure.

Responsibilities

• Build backend infrastructure powering an AI-native product.
• Own APIs, orchestration, and background processing tasks.
• Integrate LLMs and RAG pipelines for AI features.
• Shape architecture and scale systems as the company grows.
• Take features from idea through to production.

Skills

Python

Django

Backend engineering

Production systems

API design

Tools

Celery

Job description

Backend Engineer – AI Startup | London | £120k + Equity

I’m working with a fast-growing, well-funded AI startup building a product already being used daily and has huge uptake.

They’re now looking for a Backend Engineer to join their early engineering team in London, working directly alongside the CTO and founders.

This is a genuinely hands‑on position where you’ll have significant ownership of the technology, building the backend infrastructure that powers an AI‑native product, including APIs, agent orchestration, LLM integrations, RAG pipelines, and background processing.

What you’ll be working with

• Celery / background processing
• Backend architecture & distributed systems

You’ll take features from idea through to production, make architectural decisions, solve scaling and performance challenges and help shape how the engineering function develops as the company grows.

What we’re looking for

You’ll ideally have 5+ years of backend engineering experience, with strong commercial Python/Django experience and a track record of owning production systems.

We’re particularly interested in engineers who enjoy startup environments, want genuine technical ownership and are excited about building at the cutting edge of AI rather than simply integrating an LLM API.

Central London – 5 days per week in the office

Open to relocating exceptional engineers from Europe

This is a great opportunity for someone who wants to join an ambitious company early, work directly with the founding team and have a real influence over the product and technical direction.