Senior Integrations Developer

Summary We are seeking a Senior Integrations Developer to own the design, development, and ongoing management of the organization's API and system-to-system integrations, connecting internal IBM i (AS/400) applications with external vendor, partner, and mobile platforms. Beyond hands-on development, this role builds out new integrations, brings a mentoring presence to the broader development team, and partners with the Application Services Manager to shape a strategic, forward-looking vision for the integration environment that keeps it secure, scalable, and future-proofed.

Essential Duties and Responsibilities Own the design, development, and lifecycle management of REST/SOAP APIs and system-to-system integrations connecting internal IBM i (DB2 for i, RPG/RPGLE) applications with external vendor, partner, and mobile-application platforms.

Lead the build-out of new integrations from requirements through deployment, managing data mapping, authentication design, and error-handling standards end-to-end.

Serve as a technical mentor to other developers, reviewing code and integration designs, sharing best practices, and helping build integration expertise across the team.

Troubleshoot and resolve complex issues in Web applications, APIs, and integrations; lead root-cause analysis on data and connectivity failures.

Coordinate with vendors and internal teams on integration requirements and technical approach, advising on feasibility, risk, and long-term maintainability of proposed interfaces.

Establish, document, and enforce coding, security, and documentation standards for integration development, including use of the change management system (Rocket Dev Ops Core / Aldon LMi).Ensure security of Web applications, APIs, and integration endpoints, including authentication, encryption, and safe handling of data in transit.

Monitor integration and API performance, availability, and throughput; proactively recommend and implement improvements ahead of business impact.

Support integration of mobile applications (iOS and Android) with backend APIs and data sources, ensuring mobile clients have secure, reliable access to the integration layer.

Provide the Application Services Manager with a development vision for the integration platform, identifying emerging technologies, technical debt, and opportunities to future-proof the environment as system demands evolve.

Essential Competencies and Skills Able to mentor and elevate the technical skill of other developers through code review, guidance, and knowledge sharing.

Comfortable balancing hands-on development work with strategic, big-picture thinking about system architecture and future direction.

Able to communicate effectively with non-technical staff and with members of interdisciplinary teams.

Able to work both independently and in a team-oriented, collaborative environment.

Highly self-motivated and directed.

Strong understanding of coding methods and best practices.

Education, Work Experience, and Certifications In-depth knowledge of Web technologies, protocols, and tools (HTML, CSS, JavaScript, PHP).Advanced knowledge of API design and integration methods (REST, SOAP, JSON, XML, Web services), with a track record of architecting integrations end-to-end.

Experience integrating Web and API layers with backend databases and applications, including DB2 for i and RPG/RPGLE-based systems.

Understanding of authentication and security practices for APIs and data-in-transit (API keys, OAuth, encryption).Thorough understanding of application development and integration testing methodologies.

Working knowledge of mobile application architecture (iOS and Android) sufficient to design, troubleshoot, and secure mobile-to-backend integrations.

Ability to evaluate and recommend emerging Web, API, and integration technologies to keep the platform future-proofed.

Ability to mentor other developers and present technical concepts in business-friendly, user-friendly language.

Proven analytical and problem-solving abilities, with experience leading root-cause investigations.

Preferred knowledge of a change management system, including Rocket Dev Ops Core (Aldon LMi).Preferred knowledge of the insurance industry.

Physical Requirements Light Work: involves a mix of sitting, standing, and walking.

Exerting up to 20 pounds of force occasionally and/or up to 10 pounds frequently to lift, carry, push, pull, or move objects.

Requires close visual acuity to perform an activity such as preparing and analyzing data and figures,…