Senior API Administrator / Applications Architect

Position Overview

Our client is seeking an experienced Senior API Administrator and Developer to support enterprise application architecture and integration initiatives. The selected candidate will act as a technical expert responsible for API architecture, application integration, and enterprise system development to support critical business operations.

Education Requirements

• Bachelor’s or Master’s degree from an accredited college or university in Computer Science, Information Systems, or a related field; or

• Four (4) years of equivalent work experience may substitute for education on a year-for-year basis when applicable.

  Experience Requirements

  • Minimum seven (7) years of IT experience across multiple technology areas.

  • 2–3 years of architecture-level experience in enterprise applications and system integration.

  • Advanced to expert knowledge of application architecture, system design, and enterprise integrations.

• Key Responsibilities

  The Senior API Administrator and Developer will:

  • Provide architecture and design recommendations aligned with long-term IT strategy.

  • Develop enterprise-level applications and integration solutions, including enhancements, interfaces, and features.

  • Design and build complex, business-critical software solutions using modern software engineering practices.

  • Provide technical expertise in application integration across enterprise systems.

  • Develop programming standards, reusable architectures, and development procedures.

  • Troubleshoot and resolve complex technical and support issues.

  • Apply modern development methodologies and object-oriented programming approaches.

  • Research and evaluate emerging technologies for potential business use.

  • Serve as a technical expert, mentor, and advisor across multiple development teams.

• Required Skills

  • Minimum 3 years of hands-on API design and development experience.

  • Strong experience with REST APIs, JSON, and HTTP protocols.

  • Proficiency with Visual Studio, Azure API Management, Swagger, and Postman.

  • Experience developing APIs using C#, .NET Core, and MVC architecture.

  • Knowledge of Service-Oriented Architecture (SOA) and enterprise integrations.

  • Experience with Web Services (REST, SOAP, WebAPI).

  • Strong experience with Microsoft SQL Server (MSSQL) and IBM DB2 (v12/13).

  • Experience documenting APIs including URIs, HTTP methods, query parameters, and payload structures.

  • Ability to build secure, scalable APIs and backend integrations.

  • Strong collaboration skills with frontend developers, UI/UX designers, architects, and project managers.

• Preferred Qualifications

  • Experience working in state government or public sector environments.

  • Experience integrating third-party APIs and evaluating API SLAs and rate limits.

  • Expertise in API orchestration and complex integration architectures.

  • Experience building SDKs and optimizing APIs for frontend consumption.

  • Ability to analyze, modify, and extend existing codebases to support evolving requirements.

  • Strong knowledge of modern enterprise integration strategies.

• Communication Skills

  • Extensive oral communication skills

  • Extensive written communication skills