CareerPlan

Sr. Site Reliability Engineer (UK)

Hybrid- London, UKFull-time2026-11-03 → 2026-11-11

Core

Design, build, and operate reliable, scalable, and resilient production services for Firstup's public APIs, Agentic tools, and third-party integrations with enterprise systems.

Role type

Senior Site Reliability Engineer (SRE)

Builds

Public APIs, Agentic tools, third-party integrations with HRIS platforms, and shared platform services

Domain

Enterprise workforce communication platform, cloud infrastructure, distributed systems

Required skills

Site Reliability Engineering, Kubernetes, AWS, observability (Datadog), Python/Go/Java/TypeScript, Terraform, CI/CD, incident response, capacity planning, automation

Preferred skills

Generative AI tools usage, mentoring engineering teams, progressive delivery strategies

Technologies

AWS, Kubernetes, Datadog, Terraform, Python, Go, Java, JavaScript/TypeScript

Responsibilities

Partner with application engineering teams to design and operate reliable production services; Establish and drive SRE best practices including SLIs/SLOs and error budgets; Lead initiatives to reduce MTTD/MTTA/MTTR through improved telemetry and automation; Own and evolve the monitoring and observability strategy; Lead and participate in incident response and post-incident actions; Identify recurring operational work and eliminate toil through automation; Conduct capacity planning, performance engineering, and resilience testing; Provide technical leadership and mentoring to engineering teams; Participate in on-call rotations for service restoration.