Senior AI Software Engineer - Production Systems, London

Durlston Partners; England; On-site; GBP 180,000 - 220,000; Full time

Job summary

A leading AI start-up based in London is seeking a Senior Software Engineer to join their high-impact engineering team. You will design and build AI agents that outperform human agents on complex customer interactions, collaborating with business leaders across various sectors. Candidates should have at least 2 years of software engineering experience and strong skills in Python and TypeScript. This full-time role offers a competitive salary of up to £200k, plus equity.

Qualifications

• 2+ years' experience in software engineering.
• Strong competence with Python and TypeScript, including asynchronous programming.
• Ability to debug across deep technical stacks: distributed systems, latency, failure modes, data flows.

Responsibilities

• Design and build AI agents that outperform human agents on complex customer interactions.
• Own features from inception to production, including modelling, evaluation, and integration with customer systems.
• Work directly with business leaders across sectors such as finance, healthcare, transport and hospitality.
• Experiment with the latest text and voice models and build scalable, production‑ready pipelines.
• Identify patterns across customers and feed those insights into platform improvements.

Skills

Python

TypeScript

Asynchronous programming

Debugging distributed systems

Education

Top university degree or equivalent

Job description

A leading AI start-up based in London is seeking a Senior Software Engineer to join their high-impact engineering team. You will design and build AI agents that outperform human agents on complex customer interactions, collaborating with business leaders across various sectors. Candidates should have at least 2 years of software engineering experience and strong skills in Python and TypeScript. This full-time role offers a competitive salary of up to £200k, plus equity.