Application Support Engineer II
About The Position
Trimark Associates is seeking a Tier II Application Support Engineer to support our mission-critical T1-S Vantage and True:SCADA platforms. In this role, you’ll work at the intersection of software engineering, infrastructure, and operations—ensuring system reliability, resolving complex issues, and improving overall platform stability. You’ll collaborate with development, OT, integration, project management, and customer operations teams to troubleshoot production systems, support data flows and integrations, and drive long-term improvements. This is a technical, hands-on role for mid-level engineers comfortable owning issues from initial triage through root cause identification and resolution. Ideal candidates will have 3–5 years of experience supporting complex, mission-critical systems and working directly in production environments, along with the desire and ability to grow into full-time software development.
Requirements
- Bachelor’s degree in Computer Science, Software Engineering, a related field, and/or an equivalent combination of education and practical experience
- 3–5 years of professional experience in software development, application support, or a similar technical role
- Experience working in production environments and handling real-world system issues
- Must be legally authorized to work in the United States for any employer. This position is not eligible for sponsorship of a work visa.
- Experience with SQL Server (writing queries, data analysis and troubleshooting; performance tuning and database management are a plus)
- Understanding of relational database fundamentals (transactions, indexing, ACID, DML/DDL)
- Experience troubleshooting web applications and RESTful APIs
- Exposure to Windows Server environments and administration
- Ability to read and understand C#/.NET code for debugging and issue analysis
- Working knowledge of HTML and JavaScript for troubleshooting front-end issues
- Strong analytical and problem-solving skills in complex systems
- Ability to support time-sensitive, high-availability environments
- Clear communication skills for working across technical and non-technical teams
Nice To Haves
- Experience with PostgreSQL and time-series data (e.g., TimescaleDB)
- Linux system administration experience
- Familiarity with Docker, Kubernetes, and containerized environments
- Understanding of TCP/IP networking fundamentals
- Experience with Azure, especially relational database services and monitoring (e.g., Application Insights)
- Development experience with .NET/C# or other modern languages (JavaScript/TypeScript, Java)
- Familiarity with Git/source control and Agile development practices
- Understanding of object-oriented design principles
- Experience with SCADA systems or energy/utilities environments
- Familiarity with industrial protocols such as Modbus and DNP3
Responsibilities
- Troubleshoot and resolve issues in production, mission-critical applications
- Write SQL queries to analyze data issues, database performance, and data integrity
- Diagnose and resolve issues across REST APIs, web applications, and backend services
- Partner with developers to identify root causes, implement fixes, and deploy changes
- Support and monitor Windows and Linux systems and services
- Work within a biweekly sprint cycle, contributing to planning and execution
- Proactively identify recurring issues and implement solutions to improve system reliability and reduce support load
- Communicate findings and resolutions clearly to both technical and non-technical stakeholders
Benefits
- Compensation is based on market rate, job level, job related knowledge, skills, experience, education, and certifications.
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What This Job Offers
Job Type
Full-time
Career Level
Mid Level
