Senior API Integration Developer

GTS Technology Solutions

  • Austin, TX
  • Permanent
  • Full-time
  • 10 days ago
Sr. API Integration Developer (Contract-to-Hire)Location: Hybrid (Day 1 Onsite and Occasional Onsite Meetings. Must reside within 100 miles of Austin, TX per Company Issued Equipment Policy)
Contract Length: 12 Months (Contract to Hire - Convert in 2027)
Industry: Public Sector (experience preferred)
Convert FTE Salary: $130,000.00 plus competitive benefits
Background Requirements: Must pass a Criminal Justice Information Systems (CJIS) background check upon hire.We are seeking a highly skilled Senior API Integration Developer with strong backend expertise to support critical public sector applications and integrations. The ideal candidate will be a technical problem-solver with deep experience in .NET, Azure, C#, SQL, and Terraform, along with proven success in application support, API development, and third-party integrations.JOB RESPONSIBILITIESApplication Support & Development
Provide ongoing support for mission-critical applications including:
  • In-House Application (42+ integrations), Second In-House Application (7-10 integrations)
  • Odyssey
  • TechShare
  • Lead the Server Upgrade project to mitigate high-risk exposure due to Microsoft support ending in October 2026
API & Integration Work
  • Build, maintain, and optimize APIs to support enterprise applications.
  • Serve as Integration Specialist for third-party applications, ensuring seamless functionality and reliability.
Disclosure Officer Processing
  • Assist with updates and migration from on-prem to cloud storage.
  • Develop and maintain C# applications with SQL database integration.
  • Build Regular Expressions (RegEx) for text pattern searches (e.g., officer name/badge number).
  • Develop utilities to extract text from PDF documents.
  • Implement automated email generation and delivery within applications.
Required Skills & Experience
  • Technical Stack: .NET, Azure, C#, SQL, Terraform
  • Strong backend application development and support experience.
  • Demonstrated ability to manage and deliver integration-heavy projects.
  • Skilled in building and supporting APIs.
  • Proficiency with Regular Expressions, PDF text extraction, and automated email functions.
  • Public sector experience strongly preferred.
Preferred Attributes
  • Strong analytical and problem-solving skills.
  • Ability to work independently and as part of a collaborative technical team.
  • Excellent communication skills, with the ability to partner with business stakeholders and technical peers.
  • Adaptability to shifting priorities and project timelines.
GTS Technology Solutions, Inc. is an Equal Opportunity Employer. We are committed to providing equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, national origin, age, disability, genetic information, or any other protected status in accordance with applicable federal, state, and local laws.As part of our hiring process, we conduct background checks on all final candidates. These checks are conducted in compliance with the guidelines set forth by the U.S. Equal Employment Opportunity Commission (EEOC). We ensure that the information obtained from background checks is used fairly and does not unlawfully discriminate against any individual.GTS Technology Solutions participates in E-Verify to confirm the employment eligibility of all newly hired employees. If you are offered a position with GTS Technology Solutions, your employment will be contingent upon successful verification of your identity and legal authorization to work in the United States through E-Verify.For more information about E-Verify, please visit .

GTS Technology Solutions