Role – Application Support Engineer-.NET based apps, L2/L3 support
Technology –C#, .NET Framework, .NET Core, ITIL processes and ITSM tools (ServiceNow or equivalent), Monitoring & observability tools (APM, logs, alerts)
Location – Stockholm, Sweden
Business Unit – CMTADM
Compensation – Competitive (including bonus)
Your role
In the role of Application Support Engineer, you will be responsible for proactive identification of issues in production environment leveraging observability tools with the aim of reducing MTTD and MTTR. In the process, you will also be collaborating and working closely with business, product and engineering teams, across geographies. You will be part of a learning culture, where teamwork and collaboration are encouraged, excellence is rewarded, and diversity is respected and valued.
Flexibility to work in rotation shifts/on call support environment is required for this role.
Key Responsibilities
Application Support (L2/L3)
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Provide Level 2 and Level 3 support for .NET based applications in production environments
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Diagnose and resolve complex application, performance, and integration issues
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Perform root cause analysis (RCA) and implement permanent fixes
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Handle major incidents, outages, and escalations with timely resolution
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Monitor application health, logs, and alerts to ensure system stability
Technical Troubleshooting
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Debug issues involving C#, ASP.NET, ASP.NET MVC/Core, Web APIs
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Analyse application logs, IIS logs, Windows Event Viewer, and custom logs
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Troubleshoot issues related to SQL Server (queries, performance, deadlocks, indexing)
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Support integrations with third party services, APIs, and message queues
Production & Release Support
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Support deployments, hotfixes, patches, and releases in production
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Coordinate with DevOps teams for CI/CD pipeline execution
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Ensure rollback plans, post deployment validation, and monitoring
Performance & Reliability
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Identify and resolve performance bottlenecks in applications and databases
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Support application scalability, availability, and resiliency
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Perform proactive maintenance and preventive fixes
Collaboration & Documentation
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Work closely with development, QA, infrastructure, and business teams
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Create and maintain support documentation, SOPs, KBs, and runbooks
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Participate in on call rotations and out of hours support (as required)
Required Technical Skills
Core Technologies
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Strong experience in C#, .NET Framework, .NET Core
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ASP.NET, ASP.NET MVC, Web APIs
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SQL Server (T SQL, performance tuning, execution plans)
Application & Infrastructure
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IIS, Windows Server
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REST/SOAP web services
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Familiarity with Azure or AWS (App Services, VMs, monitoring – preferred)
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Logging & monitoring tools (App Insights, Splunk, ELK, etc.)
DevOps & Tools
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CI/CD pipelines (Azure DevOps, GitHub Actions, Jenkins – any)
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Source control: Git
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Ticketing tools: ServiceNow(or equivalent), JIRA, Azure DevOps
Preferred Skills-
Experience in telecommunication domain.
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Exposure to PowerShell scripting
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ITIL Foundation certification
Personal
Besides the professional qualifications, we respect and place equal importance to the candidate’s personality which facilitates success in customer environments. Few traits we look for are:
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High analytical skills
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A high degree of initiative, flexibility and adaptability
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High customer orientation
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Quality awareness
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Good verbal and written communication skills
About Infosys
Infosys is a global leader in next-generation digital services and consulting. We enable clients in over 50 countries to navigate their digital transformation. With over three decades of experience in managing the systems and workings of global enterprises, we expertly steer our clients through the many next of their digital journey. We do it by enabling the enterprise with an AI-powered core that helps prioritize the execution of change. We also empower the business with agile digital at scale to deliver unprecedented levels of performance and customer delight. Our always-on learning agenda drives their continuous improvement through building and transferring digital skills, expertise and ideas from our innovation ecosystem.
Visit www.infosys.com to see how Infosys can help your enterprise navigate your next.
All aspects of employment at Infosys are based on merit, competence and performance. We are committed to embracing diversity and creating an inclusive environment for all employees. Infosys is proud to be an equal opportunity employer 