Head of Production Reliability & Operations

Complexio; Sheffield; On-site; GBP 90,000 - 150,000; Full time

Job summary

Complexio is seeking an experienced Operations Team Lead to own production reliability across live customer-facing systems. You will shape processes, lead incidents, and build a scalable team to move from firefighting to proactive reliability engineering.

The role demands hands-on leadership, setting standards, and driving observability, incident management, and on-call practices. You will partner with engineering and product to ensure uptime, performance, and predictable releases.

Qualifications

• Proven hands-on experience in SRE, DevOps, or Production Engineering.
• Experience leading technical teams and coordinating across disciplines.
• Deep incident management experience with blameless postmortems.
• Strong observability mindset and ability to reduce MTTR.
• Calm, clear communicator under pressure with systems thinking.

Responsibilities

• Production stability and availability of live systems.
• Own incident lifecycle: detection, response, and postmortems.
• Manage on-call rotations, escalation paths, and runbooks.
• Define SLIs/SLOs and monitor reliability metrics.
• Lead and grow the Operations team with clear KPIs.

Skills

SRE

DevOps

Infrastructure

Production Engineering

Technical leadership

Incident management

Observability

Communication under pressure

Job description

Complexio is seeking an experienced Operations Team Lead to own production reliability across live customer-facing systems. You will shape processes, lead incidents, and build a scalable team to move from firefighting to proactive reliability engineering.

The role demands hands-on leadership, setting standards, and driving observability, incident management, and on-call practices. You will partner with engineering and product to ensure uptime, performance, and predictable releases.