Senior Software Engineer – AI-Driven, Production-Focused

Arqit; Belfast City District; On-site; GBP 70,000 - 110,000; Full time

Job summary

Arqit in Belfast is seeking a Senior Software Engineer to join a fast-moving product team. Your code ships to customers within weeks, not quarters, and you will influence what we build next.

You’ll mentor junior engineers, apply AI tooling across the full software development lifecycle, from design through testing and deployment, and work in an agile environment where resilience and performance matter.

Job description

Arqit in Belfast is seeking a Senior Software Engineer to join a fast-moving product team. Your code ships to customers within weeks, not quarters, and you will influence what we build next.

You’ll mentor junior engineers, apply AI tooling across the full software development lifecycle, from design through testing and deployment, and work in an agile environment where resilience and performance matter.