API Developer III

Galloup•Knoxville, TN

2d•Onsite

About The Position

The Kendall Group is comprised of eight divisions with 75+ locations in ten states. Combined, we serve the Electrical, Automation, Pipe, Valve, and Fitting products, Steam, Lighting, Industrial Controls, and Instrumentation Industries. The Kendall Group is a 100% employee-owned company. Kendall offers a great opportunity for a rewarding career. Our employee ownership model is the core of who we are. You will not only own part of the company, but you will own your future. At Kendall, you'll have opportunities to learn and grow while being coached and mentored along the way. We're that company where people stay! We're proud to say more than 60% of our associates have more than 5 years of tenure, and more than 40% have greater than 10 years. At Kendall, you will be valued and supported, your ideas will be heard, your voice will matter, and you'll work alongside incredible people who care about your success. 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.

Requirements

3 years of professional experience in API development and SSIS system integrations
Bachelor’s degree in computer science, information systems, or equivalent experience
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
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
Ability to work well cross-functionally
Provides excellent internal and external customer service
Strong verbal and written communication skills
Ability to present information in a manner that non-technical staff can understand
Ability to see, talk and hear
Ability to sit for 8 hours a day

Nice To Haves

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

Responsibilities

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 multi‑valued 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 third‑party 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 long‑term API and integration roadmap planning
Perform other duties and special projects as assigned