Role: Lead API Developer (Java) Location: Lisle, IL (Onsite) Type: Fulltime/Contract Job description: We are seeking a highly skilled and hands-on Lead Developer to drive the design and implementation of APIs for our VIN-based parts catalog. This role will lead the technical development of a modular, scalable, and secure eCommerce platform, integrating with Azure API Management (APIM) and leveraging the existing architecture and Java-based backend systems. Key Responsibilities • Lead the design and development of RESTful APIs to support VIN-based parts lookup, shopping cart, and order processing workflows. • Integrate Azure APIM to manage, secure, and monitor APIs across development and production environments. • Collaborate with cross-functional teams to modernize the existing Java/J2EE-based catalog system using modular JavaScript and microservices architecture. • Translate business requirements into scalable technical solutions using tools such as SOAP/REST, and secure SSO flows (ADFS, SAML). • Oversee the migration of legacy scripts into modular components and ensure seamless integration with International’s platforms • Ensure secure and performant API design, including token-based authentication, TLS encryption, and SOAP header security • Provide technical leadership and mentorship to junior developers and contractors. Required Skills & Experience • 8+ years of experience in Java/J2EE development, including JSP, Servlets, and Spring Framework. • Proven experience designing and deploying RESTful APIs and SOAP-based services. • Strong knowledge of Azure API Management (APIM), including policy configuration, gateway deployment, and analytics. • Experience with RequireJS, jQuery, Bootstrap, and modular JavaScript architecture • Experience with Oracle or SQL Server databases and WebSphere environments. • Strong understanding of secure transport (SSL/TLS), WS-Security, and SOAP fault handling Preferred Qualifications • Exposure to CI/CD pipelines and DevOps practices in Azure environments. • Knowledge of VIN decoding, parts master data, and related automotive domain concepts.