Application Developer - .NET / Angular
Location: Remote (United States). Occasional on-site meetings in Oklahoma City may be requested; travel is not separately reimbursed.
Engagement: Long-term contract, multi-year. Expected to run several years, subject to contract renewal and funding.
Client: Teachers' Retirement System of Oklahoma
About the work
The Teachers' Retirement System of Oklahoma serves more than 210,000 active members and retirees across 600-plus school districts, career tech centers, colleges and universities. It is the largest of Oklahoma's six state pension systems, and it is in the middle of a multi-year modernization: retiring the legacy ALICE platform and building MyPAS 3.0, a cloud-native Azure pension administration system that integrates with MyTRS and MyERS.
The legacy environment already moved to Azure in May 2024 and the member portal was modernized in July 2025. The foundation for the modern application stack is defined and close to complete. You would be joining to build on that foundation, working alongside TRS technical staff who continue to support the legacy systems while the new ones come up.
This is real greenfield-plus-migration work with a clear finish line: retire ALICE, eliminate the technical debt behind it, and replace fragmented manual workflows with something that scales.
What you will do
Build and maintain application components in C# .NET and Angular 16+ against Azure SQL Managed Instances and Azure Function Apps
Design and develop REST APIs, system interfaces and automation workflows connecting MyPAS 3.0 to MyTRS, MyERS and remaining legacy dependencies
Write clear, actionable user stories with real acceptance criteria, and help keep a prioritized backlog honest
Own the full development cycle for your work: coding, unit testing, documentation, code review, and submitting pull requests for TRS staff review
Translate functional and technical specifications into maintainable, production-ready software with a low defect rate
Trace and document legacy system architecture, dependencies and integration points so migration decisions are made on evidence rather than assumption
Work inside an established SDLC and project charter, in Agile delivery, with TRS analysts, testers and project managers
Explain technical trade-offs clearly to non-technical stakeholders, including pension business staff
Required skills
C# .NET - production hands-on, not incidental
Web API / REST design and development
Angular 16 or newer
SQL - strong query and data-modeling ability, Azure SQL preferred
Azure DevOps for boards, pipelines and repos
Git and a disciplined pull-request workflow
Working knowledge of secure coding practices
Working knowledge of Agile SDLC methodology
Ability to write user stories and acceptance criteria, not just consume them
Computer Science or MIS degree with 3 - 5 years of experience preferred, or an equivalent combination of experience and education
Nice to have
Azure Function Apps, Azure SQL Managed Instance
Power BI
Public sector, pension, benefits administration or financial services background
Experience migrating off a legacy platform rather than only building new
Document management or process automation platform experience
What we are actually looking for
Someone who can be handed an ambiguous business rule from a 30-year-old pension system, figure out what it really does, write the story for it, and then ship the replacement. Two people are being hired for this work. You will be one of a small number of contractors embedded with TRS technical staff, so the ability to work independently and communicate clearly matters as much as the stack.
Engagement details
100% remote within the United States
Occasional on-site attendance in Oklahoma City may be requested. Travel expenses are not reimbursed separately
Corp-to-corp or W2 hourly
Background check required. The role has access to protected member data
Must be authorized to work in the United States. No third-party layered vendors
About MANDO Technologies
MANDO Technologies is a fast-growing data and IT services firm delivering precision engineering to enterprise and government clients across the U.S. We are an MBE-certified, ISO 9001 and CMMI Level 3 certified equal opportunity employer.
Apply for This Role
Takes about a minute. We respond to every qualified applicant.