Applications Architect

Advanced Systems Design is seeking a Senior Applications Architectfor our client located in Tallahassee, FL. This position is onsite in Tallahassee, FL, and requires in-person availability starting day 1.  Job Overview: Our client is seeking an experienced Applications Architect under the working title of Senior Application Programming Interface (APIs) Administrator and Developer. The Applications Architect must have a minimum of seven (7) years of experience in multiple IT areas and two (2) to three (3) years of relevant architecture experience. Requires advanced to expert-level knowledge and understanding of architecture, applications systems design, and integration. The Senior API Administrator and Developer will serve as the primary responsible person for technicalanalysis and design aspects for the project team. The duties and responsibilities of this position are as follows: Provides design recommendations aligned with the long-term IT organization strategy; Develops enterprise-level applications and custom integration solutions, including major enhancements and interfaces, functions, and features; Uses a variety of platforms to provide automated systems applications to customers; Provides expertise regarding the integration of applications across the business; Determines specifications, then plans, designs, and develops the most complex and business-critical software solutions, utilizing appropriate software engineering processes—either individually or in concert with a project team; Assists in resolving the most difficult support problems; Develops programming and development standards and procedures, as well as programming architectures for code reuse; Possesses in-depth knowledge of state-of-the-art programming languages and object-oriented approaches in designing, coding, testing, and debugging programs; Understands and consistently applies the attributes and processes of current application development methodologies; Researches and maintains knowledge in emerging technologies and their possible application to the business; Recognized both internally and externally as a technical expert and critical technical resource across multiple disciplines; and Acts as an internal consultant, advocate, mentor, and change agent. Required Qualifications: The Department requires the following experience, skills, and knowledge for this position: A minimum of three (3) years of hands-on APIs design and development experience; Ability to effectively communicate API functionalities and design choices to both technical and nontechnical stakeholders; Possessing creative problem-solving skills is essential for effectively navigating challenges in API development and integration; Proven ability to collaborate effectively with frontend and backend developers, User Interface (UI) and UX (User Experience) designers, system architects, and project managers; Proficiency in Visual Studio, Azure API Management, Swagger, and Postman; Expert Knowledge of Representational State Transfer (REST) architectural style and the benefits of JavaScript Object Notation (JSON) for consumers, including Hypertext Transfer Protocol (HTTP) transport protocols; Ability to effectively document API decisions, including HTTP methods, Uniform Resource Identifiers (URIs), resource meanings, query parameters, headers, and example payloads; Ability to develop consumable, efficient APIs that balance a great consumer experience with best-fit backend integration using C# (C-Sharp), Model-View-Controller (MVC), .NET Core, Azure Government (AzureGov), Service-Oriented Architecture (SOA), and Microsoft Testing Framework (MSTest); Expertise in Web Services, including independent standard REST web services, including WebAPIs, Simple Object Access Protocol (SOAP), Microsoft SQL Server (MSSQL), and International Business Machines Database 2 (IBM DB2) Version 12 or 13 on mainframe systems; Front-end optimization skills include tailoring APIs for specific use cases, such as server-side heavy lifting, implementing Cross-Origin Resource Sharing (CORS), and constructing Software Development Kits (SDKs); Understanding the Orchestration Paradigm and proficiency in designing APIs that function as composites of multiple fine-grained calls, ensuring the delivery of effective and flexible mechanisms for complex API orchestration Comprehensive knowledge of enterprise integration approaches from the last two decades, with a specific focus on SOA, to support the organization’s evolution into a robust API provider. Preferred Qualifications: Ability to identify when existing internal or external APIs offer required functionality to determine when a mashup is the most efficient solution; Proven experience working within a state government environment; Proficiency in analyzing the operating parameters of third-party APIs—including SLAs, terms and conditions, and rate limits—to determine if integration is viable or poses a risk to consumers; Expertise in navigating complex challenges within diverse API programs to create advanced orchestration that goes beyond basic cross-platform capabilities; Ability to write synchronized code and interpret, modify, or customize existing codebases to meet diverse and evolving requirements; Expert orchestration skills to write synchronized code and interpret, modify, or customize existing codebases to meet evolving requirements; and Comprehensive understanding of modern integration requirements and the ability to build robust back-end systems tailored to diverse client needs. Education: A bachelor’s degree or master’s degree from an accredited college or university in Computer Science, Information Systems, or other related field, or four (4) years of equivalent work experience is required. Relevant experience may be substituted for education on a year-for-year basis when applicable. Advanced Systems Design, Inc. is: A leading Information Technology provider for Federal, State & Local government agencies. A certified minority-owned small business government contractor with capabilities related to Public Health IT, Criminal Justice, Transportation, and Defense. A certified service-disabled veteran-owned company with a proud 46-year track record of providing successful, innovative solutions for our government customers. A drug-free workplace in accordance with the Drug-Free Workplace Act of 1988.  Applicants who have a signed offer of employment or contractor agreement are subject to: the pre-employment testing protocol: background investigation drug screening Our Employees: Are actively working on next-generation technology projects with the U.S. Department of Veterans Affairs, CDC, and a wide array of Federal, State, and Local agencies throughout the United States Are eligible for wide-ranging benefits and perks, including but not limited to: Comprehensive Health Insurance with PPO and HDHP/HSA options Dental Insurance Vision Insurance Short/Long-Term Disability Group Life Insurance - Company Paid Voluntary Life Insurance 401(k) Plan with Employer Match Paid Time Off (Vacation/Sick) Holiday Pay - Company Paid Federal Holidays Professional Certification Incentive Plan Employee Referral Plan Technology Exposure For additional information regarding Advanced Systems Design, please check out our WEBSITE  or click HERE for all current job openings. Advanced Systems Design is an Equal Opportunity Employer.All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Created: 2026-03-12