Senior .NET Software Developer

Overview

The Senior Software Developer is responsible for leading and overseeing the development, configuration, integration, testing, and deployment of complex agency-wide information systems to address the business requirements of the state courts system. This position provides senior-level expertise to all software development functions.

Job #: 2025-97

Status: Regular, Full-Time

Location:

Olympia, Washington

Salary: Range 72: $93,804 - $123,084 per year (DOQ)

Opens: December 10, 2025

Closes: Open until filled (AOC reserves the right to close the recruitment at any time, but no sooner than seven calendar days after posting).

AOC requires employees to reside in Washington State. If invited to interview and you reside outside Washington State, seek more information about residency requirements from the AOC hiring manager for this recruitment.

This position requires at least 2 days per week working onsite at AOC facilities.

• Collaborates with project managers, business analysts, and other IT resources to develop IT applications/software using the Software Development Life Cycle (SDLC).
• Serves as the technical leader on highly complex software or application development efforts.
• Develops and maintains functionality used by software applications, including change management, security and authentication, application distribution, support for data access, search routines, system-wide configurations, and reports.
• Defines and analyzes IT problems, conducts in-depth research, and provides recommendations on solutions based on business and technical requirements.
• Reviews and comments on functional and technical specifications written by AOC staff.
• Develops applications and software solutions using assigned languages, platforms, and frameworks.
• Conducts code reviews of other software developers’ work products.
• Creates and maintains technical documentation for research and reference.
• Performs initial unit and system testing using both manual and automated test processes with all assignments and work products delivered to ensure they work as expected.
• Coordinates with business owners/analysts, other developers, and the test team to assist in testing as development progresses.
• Coordinates and performs in-depth tests, including end-user reviews, for modified and new systems.
• Creates documentation for ISD staff to deploy developed solutions to various environments. Provides technical mentorship and coaching to other system support staff.
• Maintains IT applications and associated components while coordinating with the application support team.
• Proactively monitors system performance to identify emerging issues.
• Evaluates new software development products and programming languages and makes recommendations to ensure consistency with industry best practices.
• Liaises with technical, business and stakeholder groups, communicating effectively between the two entities.
• Responds to customer service requests and provides senior-level troubleshooting, problem resolution and consulting.
• Works collaboratively to enhance or improve business processes via integration, or as necessary, minimize the impact of integration on those processes.
• Evaluates results of integration efforts, then reports and makes recommendations based on findings.
• Communicates data problems and issues to key stakeholders, including both technical and business end users.
• May perform lead duties for a workgroup, including resolving procedure or workflow conflicts and informing the manager of needs, issues and concerns.
• Performs other duties as required.

A combination of education and experience demonstrating knowledge of the duties, responsibilities and competencies of the Senior Software Developer may substitute for the qualifications listed.

Minimum education:

Bachelor’s degree in Information Technology, Computer Science, or closely allied field, AND:

• Eight (8) years of experience in a complex information technology environment, TO INCLUDE:

• Six (6) years of experience developing and enhancing applications using C#, .NET, MS Entity Framework, Java, Magic XPA, COBOL, Natural, and Cold Fusion, or other high-level languages and tools.
  
  Note:
  
  This recruitment specifically requires development experience in C#, .NET, MS Entity Framework and Magic XPA.

• Highly proficient in one or more major programming languages/frameworks, such as C#, .NET, MS Entity Framework, Java, Magic XPA, ISPW, Software AG Designer and Cold Fusion.
  
  Note:
  
  This recruitment specifically requires development experience in C#, .NET, MS Entity Framework and Magic XPA.
• Working knowledge in software development methodologies, design and implementation.
• Skill using version control systems, web services, and/or automated build/deploy agents.
• Knowledge of the fundamentals of Enterprise Architecture.
• Proficient in utilizing Microsoft 365 products, including Teams, Outlook, Word, One Note, PowerPoint, and others, with expertise appropriate to the…