Site Reliability Engineering Lead (Hiring Immediately)

Job Title: Site Reliability Engineering (SRE) Lead – Observability

Location: Stratford, London (Hybrid – 2 days per week onsite)

Contract Length: 6 months

Rate: £450–£500 per day (Inside IR35)

Industry: Financial Services

A leading Financial Services organisation in London is seeking a Site Reliability Engineering (SRE) Lead – Observability to join their team on a 6-month contract. This is a hybrid role requiring two days per week onsite at their Stratford, London offices. The role sits Inside IR35 .

Key Responsibilities:

• Lead the SRE Observability team and champion observability practices across multiple product groups.
• Provide thought leadership from the Cognizant delivery team on all things SRE.
• Leverage hands-on experience with Datadog to implement and enhance observability capabilities.
• Guide and oversee the day-to-day operation and maintenance of observability tools.
• Partner directly with engineering teams to support delivery of observability backlogs.
• Collaborate with product teams to create monitoring and alerting blueprints, patterns, and automation.
• Capture, analyse, and report on performance and capacity metrics.
• Shape observability requirements with product teams for new and existing services.
• Design and deliver business-focused dashboards based on stakeholder needs.
• Drive the creation and QA of project-level Observability Plans.
• Input into and assure the quality of testing strategies and results.

Requirements

• Proven experience in an SRE role with a strong focus on Observability.
• Expert-level proficiency with DevOps tools including GitHub, GitHub Actions, Jenkins, Nexus, CloudFormation/Terraform, and CodeQL.
• Extensive hands-on experience with observability tools – Datadog preferred .
• Deep understanding of AWS services such as EC2, ELB, ECS, S3, Config, CloudTrail, Lambda, EFS, and VPC.
• Strong scripting skills in Python and Shell.

Interested?

Apply now to be considered for this exciting contract opportunity, and play a key role in driving observability excellence within a major financial services organisation