Mainframe Developer; COBOL​/DB

Overview / Summary

We are seeking an experienced Mainframe Developer to design, develop, test, maintain, and support critical software applications. The role involves participating in the full software development lifecycle (SDLC), including business analysis, technical consultation, solution design, development, testing, deployment, and production support. This position focuses on backend mainframe development and integration with Java-based systems to support enterprise applications and transaction processing.

Mainframe Developer (COBOL/DB2)

• Collaborate with business partners and product owners to understand requirements, business processes, and system needs.
• Design, develop, troubleshoot, and enhance mainframe applications using COBOL, DB2, JCL, VSAM, IMS, and REXX.
• Analyze application and service requirements to determine appropriate technologies, integration approaches, and deployment strategies.
• Design high-level software architecture, including interfaces between Java-based applications and DB2 backend databases.
• Work closely with cross-functional teams, including product owners, developers, architects, and database administrators.
• Define and implement software testing strategies, guidelines, policies, and processes for batch and online transaction applications.
• Improve application performance and recommend DB2 database tuning enhancements.
• Support and utilize development tools, including Endeavor, to improve engineering efficiency.
• Apply software development practices such as test-driven development (TDD), continuous integration, and continuous delivery (CI/CD).
• Support security practices, including data protection, encryption, secure APIs, and data anonymization across multiple database platforms.
• Develop and maintain backend applications, APIs, microservices, database layers, stored procedures, and integration components.
• Evaluate and implement emerging technologies, including modern mainframe tools, hybrid-cloud integration capabilities, and DB2 REST services.
• Provide production support and participate in issue resolution activities as required.
• Provide off-hours production support for North America Eastern Time Zone operations when needed.

• Bachelor's Degree.
• 5–10 years of hands‑on experience in Mainframe development, systems analysis, and production support across all phases of the SDLC.
• Extensive experience with COBOL, DB2, JCL, VSAM, IMS, and REXX in batch and online transactional environments.
• Strong experience with DB2 stored procedures, DB2 REST services, Message Queues (MQs), SQL Server, and Endeavor.
• Experience working with both mainframe (DB2) and non‑mainframe (SQL Server) data structures.
• Experience supporting integration between Java applications and DB2 databases through stored procedures, MQs, or REST services.
• Strong analytical and problem‑solving skills.
• Experience working in Agile software development environments.

• Group Health (Medical, Dental, and Vision)
• Paid Time Off
• Paid Holidays
• 401(k) matching
• Group Life and Disability insurance
• Professional Development opportunities
• Wellness programs
  
  Other perks

HTC is an Equal Opportunity Employer and a proud National Minority Supplier. We seek to empower each individual, fostering an environment where everyone feels valued, included, and respected.