Site Reliability Engineer

📋 Job Overview

At Signal AI, we use cutting-edge AI technology to offer clarity on decisions that shape businesses and society. We value restless curiosity, creative thinking, and diverse perspectives as we strive to become AI-native. We believe that AI is a collaborator, not just a tool, and we invite passionate individuals to join us on our journey as we continue to learn, experiment, and grow together. We're hiring an SRE to help us run and evolve the infrastructure behind Signal AI's decision intelligence platform.

🏢 About Signal AI

Signal AI is a company that leverages AI to provide decision intelligence for businesses and society. We are committed to fostering an inclusive environment where diverse perspectives strengthen our teams and drive innovation.

🎯 The Role

You'd be joining a small, collaborative Infrastructure team at a moment when the work is genuinely changing shape. Over the last year we've hardened the platform, reduced cost, and built serious observability into our highest-volume systems. The next year is about scaling that work, absorbing infrastructure from a recent acquisition, and being thoughtful about how AI shows up in operational work: not as a gimmick, but as a tool we trust ourselves to use well.

✅ Key Responsibilities

• Help run and evolve the infrastructure behind Signal AI's decision intelligence platform.
• Scale the platform's work, absorb infrastructure from a recent acquisition, and integrate AI into operational work.
• Define what good looks like for SRE in AI-augmented operations, incident triage, runbook generation, capacity planning, and cost analysis.
• Think seriously about security in the age of AI, focusing on supply chain security and emerging models.
• Drive multi-quarter workstreams with clear direction and contribute insights to our AI-in-operations playbook.

📌 Required Qualifications

• Solid AWS and Terraform experience.
• Comfortable writing Python or Go to solve operational problems.
• Think in distributed systems: failure modes, observability, blast radius.
• Pragmatic about AI tooling, able to determine when to use an LLM and when not to.
• Communicate openly and comfortably push back when something could be better.

⭐ Desirable Experience

• Networking depth: TCP/IP fundamentals, DNS, VPC design.
• Operational security instincts: Follow the threat landscape and shifts in attacks.
• Linux internals comfort: Know where to look when something behaves strangely under load.
• Communication across technical levels: Explain concepts clearly to both technical and non-technical colleagues.

🎁 Benefits

Salary range: £70K – £85K with bonus offers.

🛂 Visa & Eligibility

Not specified.