Freelance Mobile Application Developer Jobs in Oklahoma

Contract | Tri-Force Consulting Services, Inc. | United States

Posted On 08/17/2026

IT Services

Work Experience 5+ years

NA

City Oklahoma City

State/Province Oklahoma

73102

Job Titles: Application Developer Location: Oklahoma City byNote: Remote and In‑person attendance may be required for some on‑site meetings. Job Description:

• The Teachers’ Retirement System of Oklahoma (TRS) is undertaking a comprehensive, multiyear modernization initiative to replace aging legacy systems—including full retirement of the ALICE platform—and transition to a unified, cloud native environment. This effort centers on building MyPAS 3.0, a modern Azure‑hosted pension administration system that integrates seamlessly with MyTRS and MyERS.
• TRS serves a large and diverse membership of over 210,000 employees and retirees across more than 600 school districts, career tech centers, colleges, and universities, making it the largest of Oklahoma’s six state pension systems.
• The modernization responds to long standing challenges such as fragmented workflows, manual processes, limited scalability, and stability issues in legacy technologies. The initiative introduces a modern stack—Angular, REST APIs, Azure SQL Managed Instances, Azure Function Apps, Power BI, a document management and process automation solution (pending platform evaluation and alternatives)—to support scalable, secure, and efficient operations.

• Current state:
  • Legacy systems moved from on‑premises hosting to Azure cloud migration in May 2024
  • Member portal modernized July 2025
  • All IS resources support legacy systems while simultaneously building modernized ones
  • Project charter and Software Development Life Cycle established and in practice
  • Environment and foundation for modern applications defined and nearing completion
• Expected outcomes:
  • All major systems operate on the Azure platform with improved performance, scalability, and maintainability.
  • Retirement of ALICE and elimination of legacy technical debt.
  • Reduced manual work, fewer errors, and significantly improved turnaround times.
  • A modern document storage and capture solution, with improved workflows and reduced fragmentation
  • Enhanced security posture.
  • Improved user satisfaction and accessibility.
  • Greater operational resilience and adaptability.
  • Reduced maintenance burden, lower infrastructure costs, and fewer workarounds through modern platform infrastructure.

• Knowledge of modern application development frameworks, programming languages, and secure coding practices
• Knowledge of software development lifecycle (SDLC) methodologies, including Agile
• Knowledge of business process analysis, functional design principles, documentation standards, user story development, and acceptance criteria definition
• Knowledge of TRS business rules, including those specific to the Pension Software System
• Familiarity with legacy systems architecture, dependencies, technologies, and integration points
• Skill in performing all aspects of application development, including coding, unit testing, documentation, code reviews, and submitting pull requests for TRS staff to review
• Skill in developing, enhancing, and maintaining application components that meet functional and technical requirements
• Skill in developing clear, actionable user stories and maintaining a prioritized backlog
• Skill in developing APIs, system interfaces, and automation workflows
• Ability to deliver high-quality work output with minimal defects
• Ability to translate technical specifications into maintainable, production‑ready software
• Ability to collaborate effectively with TRS technical staff, analysts, testers, and project managers
• Ability to manage multiple development tasks and meet established timelines
• Ability to communicate complex concepts clearly to both technical and non-technical audiences.

• C# .Net
• Web API
• Angular 16+
• SQL
• Azure DevOps
• GIT
• Computer Science or MIS degree with 3-5 years’ experience also preferred or equivalent combination of experience and education

About Us:
Since 2000, Tri-Force Consulting Services (https://triforce-inc.com ) has been an MBE/SDB certified IT Consulting firm in the Philadelphia region. Tri-Force specializes in IT staffing, software development (web and mobile apps), systems integration, data analytics, system automation, cybersecurity, and cloud technology solutions for government and commercial clients. Tri-Force works with clients to overcome obstacles such as increasing productivity, increasing efficiencies through automation, and lowering costs. Our clients benefit from our three distinguishing core values: integrity, diligence, and technological excellence. Tri-Force is a six‑time winner among the fastest‑growing companies in Philadelphia and a four‑time winner on the Inc. 5000 list of the nation’s fastest‑growing companies.