Senior Software Engineer – AI‑Driven End‑to‑End Platform

Signal; Greater London; On-site; GBP 90,000 - 150,000; Full time

Job summary

Signal AI in London is seeking senior software engineers who bring a product mindset and comfort with ambiguity. You will work across the full stack in small cross‑functional teams, building intuitive interfaces, scalable services, and the AWS infrastructure that supports your domain.

You’ll pair program, contribute to architecture, define technical plans, and ensure observability and reliability while applying AI‑aware practices.

Responsibilities

• Building intuitive user interfaces and data visualisations that unlock valuable insights for our customers.
• Building services that can cope with large volumes of data.
• Implementing and maintaining the AWS infrastructure that supports the services owned by the team.
• Build, maintain and evolve large‑scale distributed systems, ensuring they remain resilient.
• Building observability into everything you ship (logging, metrics, alerting).
• Owning BAU in your primary domain and building enough operational familiarity with the other domains to support incidents, understand cross‑domain interactions, and describe architectural boundaries.
• Collaborating with Product and Design to define and scope the products we build.
• Communicating with other teams and stakeholders when needed.
• Working in a collaborative environment. Pairing for most of your time, giving and receiving reviews, and helping to uphold the team’s shared quality standard.

Job description

Signal AI in London is seeking senior software engineers who bring a product mindset and comfort with ambiguity. You will work across the full stack in small cross‑functional teams, building intuitive interfaces, scalable services, and the AWS infrastructure that supports your domain.

You’ll pair program, contribute to architecture, define technical plans, and ensure observability and reliability while applying AI‑aware practices.