senior production support engineer (L2/L3) (weekends/shifts) #IKR

Successful applicants need to be comfortable with working on shifts and weekends as and when required. We are seeking an experienced Senior Production Support Engineer to provide hands-on L2/L3 support for business-critical enterprise applications operating in a highly available 24x7 production environment. The role requires strong technical troubleshooting across application, Linux/Unix, database, API, microservices, batch-processing and monitoring layers. The successful candidate must be comfortable working in a structured production environment with rotational shifts and onsite operational support. Key Responsibilities • Provide hands-on L2/L3 production support for business-critical applications operating in a 24x7 environment. • Lead investigation and resolution of P1/P2 and other critical production incidents within defined SLA timelines. • Troubleshoot application failures across Linux/Unix, databases, REST APIs, microservices, middleware and infrastructure layers. • Perform Linux/Unix diagnostics covering CPU, memory, disk, processes, services, connectivity and application/system logs. • Perform SQL-based investigation of production issues, including data validation, connectivity and transaction-related problems. • Troubleshoot REST APIs, HTTP errors, application integrations and service-to-service communication issues. • Monitor and recover failed batch workloads, scheduled jobs and upstream/downstream processing dependencies. • Perform RCA and Problem Management for recurring incidents and drive permanent corrective/preventive actions. • Use enterprise monitoring/observability tools such as Grafana, Kibana/ELK, AppDynamics or Prometheus for production investigation. • Support CI/CD pipelines, application releases, production deployments, post-deployment validation and rollback activities. • Develop/support operational automation using Shell, Python, JavaScript or Java. • Coordinate incident resolution across Development, Database, Infrastructure, Network, Middleware, vendors and business teams. • Maintain runbooks, operational procedures, incident records and production-support documentation. • Any other ad-hoc duties as assigned by supervisor Mandatory Technical Requirements • 5–9 years of hands-on Application Production Support / L2-L3 Production Support experience. • Strong Linux/Unix production troubleshooting. • Strong SQL and database troubleshooting. • Hands-on P1/P2/major incident management. • Incident Management, Problem Management and RCA experience. • Batch processing/workload scheduling and job-failure recovery. • REST API troubleshooting in production. • Experience supporting distributed/microservices-based applications. • Hands-on monitoring using Grafana, AppDynamics, Kibana/ELK or Prometheus. • CI/CD pipeline and production deployment support. • Shell, Python, JavaScript or Java scripting/programming exposure. • Change and Release Management experience in controlled production environments. Operational / Shift Requirements • This is a fully onsite role. The successful candidate will be required to work from the designated client location; work-from-home/hybrid arrangements are not available for this position. • Must be comfortable working on a rotational shift arrangement based on production-support requirements. • Must be available for weekend and public-holiday support when scheduled as part of the support roster. • Must participate in 24x7 production support/on-call coverage, including after-hours support where required. • Must be available for planned weekend/night production releases, maintenance activities, patching, DR exercises and deployment support. • Shift schedules and support rosters may change according to operational and business requirements. • Candidates should be comfortable working in a high-pressure production environment requiring timely response to critical incidents. Banking/financial-services production support experience; BMC Control-M or Autosys; ServiceNow; Docker/Kubernetes/OpenShift; AWS/Azure/GCP; ITIL certification; and experience supporting high-volume transactional applications. Important: This position is suitable for candidates specifically seeking a hands-on, fully onsite Production Support role involving rotational shifts, weekend/on-call coverage and 24x7 operational responsibilities. Interested applicants, please email your resume to Karin Chan Wei Kien Email: karinchan@recruitexpress.com.sg CEI Reg No: R1104584 Recruit Express Pte Ltd UEN: 199601303W EA Licence No: 99C4599