Barani Vijayan
Site Reliability Engineer E-commerce Platform Reliability @Tata Consultancy Services
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WORK HISTORY
Site Reliability Engineer E-commerce Platform Reliability @Tata Consultancy Services
Leeds, GB
Tata Consultancy Services – Leeds, UK | Feb 2024 – PresentOwn production reliability for high-traffic UK retail e-commerce platform supporting authentication, checkout, payment, OMS and warehouse integrations.Key Contributions:Led P1/P2 incident response across order lifecycle systems, reducing MTTR through structured triage and cross-team coordination.Diagnosed and resolved complex payment authorisation and settlement failures, preventing customer-facing inconsistencies and financial impact.Investigated authentication and session-related defects impacting checkout conversion flows.Analysed asynchronous BlueYonder OMS workflows to identify stuck transactions and integration bottlenecks.Designed and implemented Selenium-based synthetic monitoring replicating real customer journeys (login → navigation → checkout → payment).Built anomaly-based monitoring comparing real-time order volumes against historical baselines (>25% deviation detection).Optimised alert policies and dashboards in New Relic, significantly reducing monitoring noise and improving signal accuracy.Led large-scale inventory reconciliation (~1.7M SKUs), defining validation logic and guiding automation implementation.Performed distributed tracing and transaction-level analysis to identify cross-service latency and failure patterns.Authored runbooks and operational SOPs to standardise incident handling and improve platform resilience.Actively upskilling in Dynatrace focusing on service health modelling and problem detection.
EDUCATION
Rajalakshmi Institute of Technology
Bachelor of Engineering - BE, Mechanical Engineering
ABOUT BARANI VIJAYAN
I am a Site Reliability Engineer with 8+ years of experience supporting large-scale retail e-commerce platforms in the UK. My focus is on production stability, payment reliability, authentication flows, and observability-driven operations across distributed systems.Currently leading reliability initiatives for ASDA George e-commerce, I own production stability across checkout, OMS, warehouse, and payment integrations. I specialize in:• Incident ownership (P1/P2) and structured RCA• Payment authorisation & settlement failure analysis• Observability using New Relic APM & Synthetic Monitoring• Distributed tracing & cross-system workflow debugging• Inventory reconciliation at scale • Automation of monitoring & anomaly detectionI strongly believe SRE is about reducing toil through automation, improving signal over noise, and aligning reliability with business impact. I am currently expanding my enterprise monitoring capabilities with Dynatrace and deepening my knowledge in SLO/error-budget based reliability engineering.
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