Application Developer; Enterprise Systems

Location:

OPC Headquarters – Tucker, GA.

Department:
Billing Services.

The Application Developer (Enterprise Systems) is an early‑senior, hands‑on software development role focused on building, enhancing, and sustaining OPC's internally developed billing applications. This position is best suited for a developer who enjoys deep ownership of business‑critical systems, close partnership with business users, and working on applications that directly power core operations, not shorter project work.

This role sits between senior engineering execution and business systems partnership, offering long‑term stability, meaningful ownership, and exposure to complex enterprise systems.

• Design, build, and maintain custom web‑based Java enterprise applications, with primary responsibility for backend logic and core business algorithms
• Develop and optimize Microsoft SQL stored procedures that support complex billing calculations and high‑volume data processing
• Translate business rules, billing contracts, and operational needs into clean, reliable system logic
• Own enhancements, maintenance, and controlled changes to internally developed and vendor-supported applications
• Collaborate with Accounting, Billing, and IT partners to ensure applications align with business and regulatory requirements
• Participate in application architecture discussions and contribute to long‑term system improvement efforts
• Perform hands‑on coding, testing, debugging, and production support
• Support User Acceptance Testing (UAT) and quality assurance efforts to ensure reliable releases
• Troubleshoot production issues, investigate root causes, and implement durable solutions
• Maintain code and documentation using Git Hub and established development standards
• Use AI‑assisted development tools (e.g., Copilot, ChatGPT, Claude) thoughtfully to support development, testing, and analysis

• A solid software development foundation with growing senior‑level judgment
• Interest in long‑term system ownership rather than short‑term consulting or product churn
• Comfort working closely with business partners and explaining technical concepts clearly
• A steady, detail‑oriented approach to building reliable enterprise systems
• Ability to manage multiple priorities while contributing consistently to team goals

• Bachelor's degree in Computer Science, Business, Information Technology, or a related field
• Typically 5–8 years of experience in software development, systems analysis, or enterprise application support
• Experience working in transactional, data‑driven, or regulated system environments
• Exposure to leading small initiatives, system enhancements, or functional areas preferred
• Equivalent education and experience combinations will be considered

• Working proficiency in Java or another object‑oriented programming language (Java preferred)
• Strong experience developing and maintaining MS SQL stored procedures and working with relational databases
• Familiarity with web technologies such as JavaScript, HTML, CSS, and related frameworks
• Understanding of basic application architecture, system design, and data modeling concepts
• Experience following structured development, testing, and QA practices
• Familiarity with Git Hub and collaborative development workflows
• Ability to work effectively in a stable enterprise environment where systems evolve thoughtfully
• Exposure to billing systems, accounting concepts, or the electric utility industry is a plus, but not required