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Salary
≈ $18k – $42k per year (Estimated)
Location
In office (Bengaluru)
Seniority
Senior · 6+ years exp

Confirmed on the employer's own hiring board on Nov 2, 2026. First seen by Alion on Oct 16, 2026.

Overview
Company
Impact
Profile match
HCLTech is a major Indian multinational information technology (IT) services and consulting company headquartered in Noida, Uttar Pradesh. Spun off from the original HCL Group in 1991, it ranks as one of India's largest technology companies alongside firms like TCS, Infosys, and Wipro.

Job Summary

The SRE L3 Engineer - Windows Based Applications is responsible for ensuring the stability, availability, performance, scalability, and reliability of enterprise production applications built on the Microsoft technology stack, including.NET / ASP.NET, IIS, Windows Server, and Microsoft SQL Server. The role extends beyond advanced production support and focuses on deep technical troubleshooting, permanent problem resolution, reliability engineering, automation, performance optimization, and technical governance. The L3 Engineer acts as a technical escalation point and subject matter expert for complex incidents, recurring problems, performance issues, and platform-level application stability concerns. The role collaborates closely with L1/L2/L3 support teams, development teams, infrastructure teams, database teams, and business stakeholders to drive service restoration, eliminate repeat incidents, improve SLO adherence, and strengthen the overall reliability posture of business-critical applications.

Key Responsibilities

Application Operations & Technical Ownership

  • Own and manage L3-level application operations for Windows-based enterprise applications built on.NET / ASP.NET, hosted on IIS, and integrated with Microsoft SQL Server.
  • Provide expert-level support for complex production issues impacting availability, latency, performance, errors, capacity, and reliability.
  • Act as the technical owner for application stability, ensuring production environments remain reliable, resilient, and aligned with agreed service levels.
  • Review application configuration, deployment patterns, environment dependencies, and operational risks to improve service reliability. ________________________________________ Incident & Major Incident Management
  • Serve as the L3 technical escalation point for incidents escalated from L1/L2 support teams.
  • Lead technical investigation and resolution of complex P1/P2 incidents, ensuring timely service restoration and effective stakeholder communication.
  • Perform deep-dive analysis across application logs, IIS logs, Windows event logs, SQL performance indicators, metrics, traces, and monitoring dashboards.
  • Support on-call and 24x7 major incident response as required for business-critical applications. ________________________________________ Problem Management & Root Cause Elimination
  • Lead root cause analysis for recurring, complex, or business-critical incidents and define corrective and preventive actions.
  • Identify systemic reliability gaps and drive permanent fixes, workarounds, automation, configuration changes, or architectural improvement recommendations.
  • Work with development, infrastructure, and database teams to resolve underlying application, platform, configuration, and performance bottlenecks.
  • Ensure known errors, recurring issues, and technical risks are captured, tracked, and addressed through structured problem management. ________________________________________ Monitoring, Observability & Reliability Engineering
  • Design, configure, and enhance monitoring, alerting, dashboards, and observability solutions for application health, user impact, performance, and reliability indicators.
  • Analyze metrics, logs, traces, and monitoring trends to proactively detect performance degradation, stability risks, capacity constraints, and emerging failure patterns.
  • Drive adherence to SLOs, SLIs, SLAs, and error budget principles, ensuring reliability objectives are measurable and actionable. ,
  • Recommend improvements to monitoring coverage, alert quality, runbooks, dashboards, and operational readiness.

Skill Requirements

Core Technical Skills

  • Strong hands-on experience supporting and troubleshooting.NET / ASP.NET applications in enterprise production environments. ,
  • Advanced knowledge of IIS, including application pools, bindings, SSL certificates, configuration, deployment, performance tuning, and troubleshooting.
  • Strong working knowledge of Microsoft SQL Server, including querying, performance tuning, troubleshooting, database health monitoring, and capacity considerations. ,
  • Strong understanding of Windows Server environments, application deployment, configuration management, log analysis, and debugging.
  • Experience with observability and monitoring tools such as Splunk or equivalent platforms. ________________________________________ SRE / Operations Skills
  • Strong experience in production support, application operations, and SRE practices, preferably at L3 or senior technical escalation level.
  • Strong understanding of Incident, Problem, and Change Management processes aligned with ITIL practices.
  • Practical knowledge of monitoring, observability, performance tuning, capacity management, SLOs, SLAs, and error budgets.
  • Ability to analyze complex application behavior using logs, metrics, traces, SQL data, IIS configuration, and infrastructure signals.
  • Strong automation mindset with experience in scripting and operational tooling. ________________________________________ Soft Skills
  • Strong analytical, diagnostic, and problem-solving capabilities for complex production issues.
  • Ability to work effectively under pressure during major incidents and high-priority escalations.

Other Requirements

  • 6-10 years of experience in Application Support, Production Support, Site Reliability Engineering, or Application Operations, with strong exposure to Microsoft technology-based enterprise applications.
  • Bachelor’s degree in Computer Science, Information Technology, Engineering, or a related discipline.
  • Experience working in enterprise-scale production environments supporting business-critical applications.
  • Prior experience in an L3, technical lead, senior support engineer, or SRE role is preferred.
  • Experience supporting applications in regulated, large-scale, or complex multi-team environments will be an added advantage.
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