Senior Application Support Engineer

Senior Application Support Engineer

We are seeking a highly experienced Senior Application Support Engineer with strong expertise in.NET technologies, SQL Server, SSIS, and retail domain applications. This is a critical, highly technical role focused on ensuring the stability, performance, and reliability of customer-facing and backend business applications. The ideal candidate will be responsible for Level 2/Level 3 production support, troubleshooting complex application issues, maintaining database systems, automating operational processes, and collaborating with both technical and business teams to resolve customer-impacting issues in a fast-paced production environment.

Key Responsibilities

• Provide L2/L3 production and application support for enterprise retail applications
• Troubleshoot and resolve customer-facing software and system issues across proprietary and third-party platforms
• Monitor production systems, interfaces, batch jobs, and application performance
• Support and maintain.NET applications, SQL Server databases, and SSIS packages
• Perform root cause analysis and implement preventive solutions for recurring incidents
• Utilize PowerShell, T-SQL, and automation tools to optimize backend processes and operational workflows
• Develop internal support utilities and tools to improve operational efficiency
• Work closely with technical and non-technical teams to resolve production and customer-impacting issues
• Participate in production release engineering and deployment support on a rotating basis
• Analyze SQL queries and perform performance tuning and optimization
• Ensure adherence to SLA commitments and ITIL support processes
• Create and maintain technical documentation, support procedures, and knowledge base articles

Required Skills

• 10+ years of experience in Application Support / Production Support / Systems Analysis
• Strong hands-on experience with:
  • .NET / ASP.NET / C#
  • SQL Server, T-SQL
  • SSIS (SQL Server Integration Services)
  • PowerShell scripting
• Experience supporting enterprise retail or eCommerce applications
• Strong database troubleshooting and query optimization skills
• Experience with incident management, defect resolution, and release support
• Hands-on experience with batch processing and job monitoring
• Familiarity with ticketing and monitoring tools such as ServiceNow, JIRA, or Remedy
• Excellent troubleshooting and problem-solving skills in high-pressure environments
• Strong technical writing and documentation skills
• Excellent communication and cross-functional collaboration abilities

Preferred Qualifications

• Experience with CRM platforms or customer support systems
• Experience with automation tools and AI-assisted operational workflows
• Knowledge of POS systems, merchandising, warehouse management, inventory, or order management systems
• Experience working in Agile and ITIL-based support environments
• Exposure to Azure or cloud-based infrastructure environments

Domain Experience

• Retail domain experience is required
• Experience supporting customer-facing retail applications, eCommerce platforms, warehouse operations, or order processing systems is highly preferred

Education

Bachelor's degree in Computer Science, Information Technology, or related field.

Required Skills

• ETL: Strong experience in designing and managing ETL processes for data integration and transformation.
• SQL: Advanced proficiency in writing complex queries, stored procedures, performance tuning, and database optimization.
• SSIS: Hands-on expertise in building, deploying, and maintaining SSIS packages for data workflows.
• .NET MVC Good to Have
• Angular /React
• MAS500 (Sage MAS 500 ERP): Familiarity with ERP systems, particularly MAS500, for financial and operational data handling.
• EDI (Electronic Data Interchange): Experience in implementing and supporting EDI transactions for business-to-business communication.
• Seeburger: Knowledge of Seeburger middleware for integration and EDI solutions.

About Us: InterSources Inc

InterSources Inc, a Certified Diverse Supplier, was founded in 2007 and offers innovative solutions to help clients with Digital Transformations across various domains and industries. Our history spans over 16 years and today we are an Award-Winning Global Software Consultancy solving complex problems with technology. We recognize that our employees and our clients are our strengths as the diverse talents and opportunities they bring to the table enable us to grow as a global platform and they are causally linked with our success. We provide strategic and technical advice, and we have expertise in areas covering Artificial Intelligence, Cloud Migration, Custom Software Development, Data Analytics Infrastructure & Cloud Solutions, Cyber Security Services, etc. We make reasonable accommodations for clients and employees and we do not discriminate based on any protected attribute including race, religion, color, national origin, gender sexual orientation, gender identity, age, or marital status. We also are a Google Cloud partner company. We align strategy with execution and provide secure service solutions by developing and using the latest technologies that thrive our resources to deliver industry-leading capabilities to our clients and customers, making it convenient for our clients to do business with InterSources Inc. Our teams also drive growth by refining technology-driven client experiences that put the users first, providing an unparalleled experience. This results in strengthening the core technologies of clients, enabling them to scale with flexibility, create seamless digital experiences and build lifelong relationships.