Senior Backend Engineer, Voice AI Platform

Voice AI Space; Greater London; On-site; GBP 80,000 - GBP 100,000; Full time

Job summary

A leading voice technology firm in Greater London is seeking a Senior Backend Engineer with Voice AI experience to design and scale backend systems for voice-driven applications. The ideal candidate will have over 6 years of backend engineering experience, proficiency in languages such as Python and Go, and a strong background in distributed systems and APIs. This role involves optimizing voice technologies, maintaining backend services, and contributing to platform architecture. Competitive salary and working in a dynamic environment await the right talent.

Qualifications

• 6+ years of professional backend engineering experience.
• Strong proficiency in backend programming languages.
• Experience with distributed systems, APIs, and event-driven architectures.

Responsibilities

• Design, build, and maintain scalable backend services for voice-enabled and conversational AI products.
• Integrate and optimize STT, TTS, and NLP/LLM pipelines.
• Own backend APIs, data flows, and service orchestration for voice interactions.
• Improve system performance and reliability.
• Contribute to architectural decisions and platform strategy.

Skills

Backend engineering

Python

Go

Java

Scala

Node.js

Distributed systems

APIs

Tools

SQL

NoSQL

Caching technologies

Message queues/streams

Job description

A leading voice technology firm in Greater London is seeking a Senior Backend Engineer with Voice AI experience to design and scale backend systems for voice-driven applications. The ideal candidate will have over 6 years of backend engineering experience, proficiency in languages such as Python and Go, and a strong background in distributed systems and APIs. This role involves optimizing voice technologies, maintaining backend services, and contributing to platform architecture. Competitive salary and working in a dynamic environment await the right talent.