Senior .NET Application Developer

Insight Global; Jackson (MS); Hybrid; USD 76,000 - 90,000; Full time

Job summary

Insight Global is seeking a Senior Application Developer to support the IPS for a major energy client. This hands-on role combines application development with infrastructure duties, focusing on .NET, C#, and T‑SQL in a hybrid setup.

The position spans Jackson, MS and nearby sites, with an hourly pay range of $55–$65. The candidate will stabilize system health, performance, and stability while working within a production-support environment and leveraging AWS, Python, or Bash scripting for

Qualifications

• Senior backend developer with strong .NET/C# and SQL Server experience.
• Experience maintaining and supporting production enterprise applications.
• Infrastructure support including OS management and security remediation.

Responsibilities

• Stabilize and maintain the Integrated Planning System (IPS).
• Own system stability, maintenance, and production support for a COTS product.
• Provide hands-on development with strong infrastructure responsibilities.
• Support health, performance, and stability improvements in the initial six months.
• Hybrid work arrangement across Jackson, MS or other listed sites.

Skills

Backend development

.NET

C#

T-SQL

SQL Server

Production apps

OS management

Security remediation

Networking basics

COTS apps

System stability

AWS

Python

Bash scripting

Legacy systems

Power generation/ transmission

Job description

Job Description

Insight Global is currently looking for a Senior Application Developer for one of our largest energy production and transmission clients in the greater Houston area. This individual will support the Power Generation and Transmission team and play a critical role in stabilizing and maintaining the Integrated Planning System (IPS). This is a hands‑on developer role with strong infrastructure responsibility, combining application development and system support for a commercial off‑the‑shelf (COTS) product rather than custom-built software. The ideal candidate will bring deep experience in .NET, C#, and T‑SQL, along with infrastructure skills such as operating system management, security vulnerability remediation, and networking fundamentals. The initial six months will focus heavily on improving system health, performance, and stability, including support of the AFRM (facility ratings) module. Experience with AWS, Python, or Bash scripting is a plus for long-term system support and automation. This position is going to be hybrid (2/3 rotating), and can sit in Jackson, MS, The Woodlands, TX, New Orleans, LA, or Little Rock, AR. The pay rate for this position will be between $55-65/hr.

We are a company committed to creating diverse and inclusive environments where people can bring their full, authentic selves to work every day. We are an equal opportunity/affirmative action employer that believes everyone matters. Qualified candidates will receive consideration for employment regardless of their race, color, ethnicity, religion, sex (including pregnancy), sexual orientation, gender identity and expression, marital status, national origin, ancestry, genetic factors, age, disability, protected veteran status, military or uniformed service member status, or any other status or characteristic protected by applicable laws, regulations, and ordinances. If you need assistance and/or a reasonable accommodation due to a disability during the application or recruiting process, please send a request to [e-mail] learn more about how we collect, keep, and process your private information, please review Insight Global's Workforce Privacy Policy: https://insightglobal.com/workforce-privacy-policy/.

Skills and Requirements

• Senior-level backend development experience
• Strong experience with .NET and C#
• Strong T‑SQL / SQL Server experience
• Experience supporting production enterprise applications
• Infrastructure support experience, including OS management and security remediation
• Working knowledge of networking fundamentals
• Experience supporting COTS applications
• Ability to own system stability, maintenance, and production support
• AWS cloud experience
• Python or Bash scripting experience
• Experience supporting legacy or niche enterprise systems
• Exposure to power generation, transmission, or outage management systems