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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # API Developer III - **Company:** The Kendall Group - **Location:** Knoxville, TN, United States - **Experience:** Experienced - **Contract:** Permanent contract - **Skills:** Application Programming Interfaces (APIs), Data Analysis, Business Logic, User Authentication, Business Systems, Code Review, Information Systems, Databases, Data Integration, Data Integrity, Extract Transform Load (ETL), Data Transformation, Data Normalization, Data Structures, Hypertext Transfer Protocols (HTTP), JSON, Microsoft Office, OAuth, SQL Server Integration Services, Systems Integration, Management of Software Versions, Data Logging, SAP Integration Solutions, Information Technology, Api Design, Restful APIs, Api Management - **Published:** August 5, 2026 - **Apply:** https://jobs.localjobnetwork.com/apply/add/87966819/1 ## About the Role * Customer Focus * Results, Action Oriented * Accountability and Responsibility * Teamwork and Collaboration * Strategic Ability * Problem-Solving * Process Management * Displaying Technical Expertise * Self-starter, Self-motivation * Integrity * Attention to Detail What you'll need: * Work Experience: 3 years of professional experience in API development and SSIS system integrations * Education:Bachelor's degree in computer science, information systems, or equivalent experience * Analytics/Computer Skills:Strong analytical and problem solving skills; experience working with MS Office with a heavy emphasis on SSIS for API driven integration; Strong knowledge of REST, HTTP, JSON, authentication methods (API keys, OAuth, tokens); familiarity with ETL patterns, data normalization, and transactional integrity; working knowledge of basic programming concepts and syntax; proven ability to troubleshoot complex data and integration issues across systems * Organization Skills:Highly organized and detail-oriented; ability to multi-task and shift priorities as needed; ability to work in fast-paced, continuously evolving, and at times challenging environment; ability to work independently and be responsible for solutions end-to-end * Cross-functional skills:Ability to work well cross-functionally; provides excellent internal and external customer service * Communication Skills:Strong verbal and written communication skills; ability to present information in a manner that non-technical staff can understand * Physical, Mental and Visual Skills: The physical demands described here are representative of those that must be met by an employee to successfully perform the essential functions of this job. Reasonable accommodations may be made to enable individuals with disability to perform the essential functions. + Ability to see, talk and hear + Ability to sit for 8 hours a day * Physical Environnent :Normal office environnement * Travel: willing to travel up to 5%; including occasional overnight travel ## Description Role Summary: Reporting to the API Product Manager, The API Developer III is responsible for designing, building, and maintaining enterprise APIs and integration solutions that connect Enterprise Resource Planning to internal systems, customers, vendors. This role operates in a Microsoft SSIS centric integration environment and requires deep understanding of ERP data models, multi valued databases, and transactional workflows. The API Developer III will be responsible for complex integrations end to end, establishing standards for API and SSIS development, and mentoring other developers while ensuring reliability, performance, and data integrity across the enterprise. Exciting work you will do: The essential duties and responsibilities of the API Developer III position will consist of, but are not limited to the following: * Design, develop, and maintain RESTful APIs that expose and consume ERP data from business system, supporting orders, pricing, inventory, customers, and transactional workflows * Build and maintain SSIS packages to orchestrate API integrations, data transformations, scheduling, and error handling * Translate complex multivalued data structures into normalized API payloads suitable for external consumption * Implement API versioning, error handling and retry logic to support reliable enterprise integrations * Develop and maintain integrations using thirdparty vendors, customers, eCommerce platforms, and internal systems * Work directly with business system multi-value data models, files, and business logic to ensure accurate and consistent data movement * Understand ERP transactional dependencies (orders, shipments, invoices, pricing, inventory) and design APIs accordingly * Partner with ERP analysts and business stakeholders to validate data definitions, workflows, and integration behavior * Establish and enforce API and SSIS development standards, naming conventions, logging, and documentation practices * Lead code reviews and design reviews for APIs and SSIS packages * Monitor integration performance and proactively troubleshoot data, performance, or reliability issues * Ensure security best practices are followed, including authentication, authorization, and protection of sensitive ERP data * Mentor API Developers in SSIS, API design, and ERP integration concepts * Collaborate closely with product management, ERP teams, infrastructure, vendors, and external partners * Contribute to longterm API and integration roadmap planning * Perform other duties and special projects as assigned ## Related Videos - [Why make use of an integration platform in today's software developments and infrastructure?](https://www.wearedevelopers.com/videos/758-why-make-use-of-an-integration-platform-in-today-s-software-developments-and-infrastructure) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [Kubernetes and Microservices with Multi-Model Databases](https://www.wearedevelopers.com/videos/382-kubernetes-and-microservices-with-multi-model-databases) - [Keeping applications secure by evolving OAuth 2.0 and OpenID Connect](https://www.wearedevelopers.com/videos/100152-keeping-applications-secure-by-evolving-oauth-2-0-and-openid-connect) - [API = Some REST and HTTP, right? RIGHT?!](https://www.wearedevelopers.com/videos/1675-api-some-rest-and-http-right-right) - [Introducing JSON Structure](https://www.wearedevelopers.com/videos/100219-introducing-json-structure) ## Related Articles - [The Most Popular IT Jobs on the Market](https://www.wearedevelopers.com/magazine/376-the-most-popular-it-jobs-on-the-market) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Top-Paying Tech Jobs (with Salaries)](https://www.wearedevelopers.com/magazine/372-top-paying-tech-jobs-with-salaries) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Why Upskilling And Reskilling is Important For Developers](https://www.wearedevelopers.com/magazine/428-why-upskilling-and-reskilling-is-important-for-developers) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)