Senior Software Engineer

Motive Group; Greater London; On-site; GBP 85,000 - 120,000; Full time

Benefits offered by this job

Equity

Private health insurance

Gym membership

Lunch in-office

Offsites

Job summary

Motive Group in London is seeking a backend engineer to own end-to-end systems for high-throughput LLM interactions, vector search, and multi-agent orchestration.

You will architect and scale infrastructure, build retrieval pipelines, and stitch together model providers, data stores, and internal APIs into clean, performant systems. Equity, private health insurance, gym, lunch in-office, and visa sponsorship are on offer.

Qualifications

• Able to ship fast and own technical projects from architecture through to production.
• Strong production TypeScript code; Python is welcome.
• Know your way around PostgreSQL and data modelling for reliability.

Responsibilities

• Own backend systems end-to-end for high-throughput LLM interactions.
• Architect and scale infrastructure, vector search and multi-agent orchestration.
• Build retrieval pipelines, caching layers, and async task queues.

Skills

Ship fast

Architecture ownership

Team collaboration

Production-grade code

Tools

TypeScript

Python

PostgreSQL

Job description

We've partnered with a profitable, fast-growing (10x last year) AI company building LLM-powered tools that are already used by some of the world's largest private equity and consulting firms. The team is 40+ across London & New York and this is a key backend hire for the London office.

You'll own backend systems end-to-end: architecting and scaling infrastructure for high-throughput LLM interactions, vector search and multi-agent orchestration, building retrieval pipelines, caching layers and async task queues, and stitching together model providers, data stores and internal APIs into clean, performant systems. There's real scope to shape engineering culture and infrastructure decisions early.

You might be a fit if you:

• Ship fast and have owned technical projects from architecture through production
• Write strong production TypeScript (Python also welcome)
• Know your way around PostgreSQL and care about data modelling, reliability and system design
• Enjoy turning messy business problems into clean systems and automation
• Thrive in lean, fast-moving startups and can work directly with non-technical stakeholders

Bonus: billing / payments or usage-based pricing, internal dev tooling, event-driven systems, or retrieval / embeddings / prompt orchestration.

On offer: competitive salary plus equity, private health insurance, gym membership, lunch in-office, multiple all-expenses paid offsites a year, and visa sponsorship.

Flat structure, direct access to the founders, five days a week in a Farringdon office.

Apply here or message me directly for a confidential chat.