Senior Site Reliability Engineer (SRE)

Job summary

About us: We are an international IT and Fulfillment Services company with offices in the US, UK, and Portugal. The*** works with organisations to create digital and technology platforms that drive transformation, develop capabilities, and build businesses around the world.

Responsibilities

• In this role, you will be responsible for bringing order, stability, and robust resource hygiene to a complex, high-stakes core banking environment deployed on Azure Kubernetes Service (AKS).
• You will lead the transition from a reactive firefighting posture to a proactive, durable operational baseline—ensuring that complex data flows and multi-tiered applications run reliably.
• Kubernetes Resource Governance & Architecture
• Enforce Pod-Level Hygiene: Mandate and configure explicit CPU, memory, and ephemeral storage requests and limits across all microservices to completely eliminate resource over-commitment and node-level evictions.
• Autoscaling Safeguards: Manage Horizontal Pod Autoscaler (HPA) configurations carefully, ensuring that high-risk, single-replica overrides (e.g., min=max=1) are banned on critical web UI and front-office tiers.
• Cluster Readiness Management: Implement and maintain robust application readiness probes to properly gate traffic post-restart, ensuring clients never hit un-initialized or un-ready application pods.
• Database & Application Performance Tuning
• Deadlock Mitigation: Analyze, trace, and remediate persistent database performance bottlenecks, specifically focusing on Azure SQL Hyperscale deadlocks, aborted transactions, and high data I/O contention.
• Advanced Observability & Alert Engineering
• De-noise the Paging Layer: Take ownership of an inherently noisy alerting system generating hundreds of daily threshold alerts, implementing aggressive deduplication and alert-noise reduction.
• Incident Response & Root Cause Analysis (RCA)
• Telemetry-Driven Diagnostics: Utilize deep-dive APM

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