Senior Integration Developer

Hajoca Corporation is one of the country’s largest privately-held wholesale distributors of plumbing, heating & cooling, and industrial supplies. Founded in 1858, Hajoca is a company based on the principles of “Service, Integrity, Reliability,” and on relationships of trust and support with teammates, customers, and suppliers. Throughout its history, Hajoca has played an active role in shaping advances in plumbing. However, we attribute our success to two simple truths; a unique business philosophy and talented people. Hajoca is all about the people, who give us our advantage, and who will guide us successfully into the future.

Hajoca has over 400 locations nationwide, called Profit Centers; and at the foundation of our family of businesses is a National Support Center (NSC) where Centers of Excellence are dedicated to enabling the success of our Profit Centers.

Our Technology team is at the forefront of keeping our business on the front edge of the future supply chain and distribution. We have a technology roadmap that will transform our business, and we are growing our team to lead this change. To support this effort, the Information Technology team in our National Support Center (NSC) is looking for a Senior Integration Developer at their Lafayette Hill, PA office. This is a hybrid role requiring three days in office.


Do you have hands-on experience with Boomi integration and API management? Do you enjoy designing and securing external-facing APIs? Are you excited by the opportunity to help modernize Hajoca’s integration platform? If so, then we’d like you to join our dedicated team as a Senior Integration Developer.

About the Role:

Hajoca’s integration solutions are a key part of our architecture, supporting internal system to system integrations as well as customer and vendor facing integrations. As a key member of the Hajoca Information Technology organization, the Senior Integration Developer reports to Hajoca’s Director of IT Engineering and is responsible for implementing integration solutions. This includes cloud-based solutions, data design, event and API driven systems, microservices, middleware platforms, and systems integration.
Boomi serves as Hajoca’s strategic integration platform and the connective tissue across the enterprise, linking core systems such as Epicor Eclipse ERP, SAP, CRM, and Azure-based applications with the data, events, and services that run the business. Increasingly, this role also designs and manages the external-facing APIs that connect Hajoca to its trading partners, customers, and vendors—making integration a differentiator in how quickly, securely, and reliably we do business.

In this role, you will:
• Implement integration solutions including cloud-based solutions, data design, event and API driven systems, microservices, middleware platforms and system integration.
• Collaborate with stakeholders to gather and analyze business requirements for integration projects.
• Develop detailed technical specifications and design documentation for integration solutions.
• Identify approaches to all applicable non-functional requirements in detailed designs, including, but not limited to, performance, security, and observability.
• Configure and customize Boomi connectors, components, and processes to meet specific integration requirements.
• Build, maintain, and optimize Boomi integration processes that connect Hajoca’s core systems—including Epicor Eclipse ERP, SAP, CRM, and Azure-hosted applications—into a cohesive, well-governed integration fabric that ties the enterprise together.
• Working with Hajoca’s Field Technology Group, design, publish, and manage external-facing APIs for trading partners, customers, and vendors using Boomi API Management, including gateway configuration, versioning, and full API lifecycle management.
• Implement API security and governance—authentication (OAuth 2.0, API keys), authorization, rate limiting, and traffic monitoring—to safely and reliably expose internal capabilities to external partners.
• Develop reusable Boomi components, canonical data models, and shared integration patterns that reduce duplication and accelerate delivery across the integration portfolio.
• Migrate and consolidate legacy point-to-point and file-based integrations onto Boomi to improve standardization, security, maintainability, and observability across the integration estate.
• Manage Boomi runtime environments (Atoms, Molecules, and cloud runtimes), deployments, and environment promotion across development, test, and production in line with DevOps and CI/CD practices.
• Support Hajoca’s evolving integration and automation roadmap, including opportunities to leverage Boomi’s API and emerging AI and agentic integration capabilities to modernize how systems and partners connect.
• Design and develop microser