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Senior Mainframe Software Engineer (COBOL, DB2, z/OS)

HTC Global ServicesLivonia, MI🇺🇸United StatesPosted 31 Jul 2026

Quick Overview

Work Type
Hybrid
Level
Mid Senior

Job Description

Job Title

Senior Mainframe Software Engineer (COBOL, DB2, z/OS)

Overview

We are seeking an experienced Mainframe Software Engineer to support and enhance enterprise mainframe applications while contributing to ongoing modernization initiatives. This role includes application development, production support, defect resolution, customer interaction, and collaboration with cross-functional teams to deliver business-critical solutions and support cloud migration efforts.

Key Responsibilities

  • Develop, maintain, and support enterprise mainframe applications.
  • Provide production support, on-call support, and incident resolution.
  • Implement required features to support business and compliance requirements.
  • Manage assigned product deliverables and actively maintain the development backlog.
  • Review, prioritize, and resolve application defects.
  • Collaborate with Product Owners, Product Managers, engineers, vendors, and business stakeholders.
  • Participate in application modernization initiatives and migration efforts.
  • Deliver solutions that provide value to both customers and the business.

Required Qualifications

  • Bachelor's degree in Computer Science or an equivalent field.
  • 7+ years of experience in mainframe application design, analysis, development, and coding.
  • Strong experience with COBOL (IMS), JCL, CA7, DB2 and/or BigQuery, COBOL Stored Procedures, and real-time and batch processing.
  • 2+ years of experience implementing z/OS Connect, SFTP, SOAP APIs, REST APIs, and other system-to-system integration methods.
  • Experience designing, developing, and maintaining Mainframe COBOL and JCL applications.
  • Experience using source code management tools such as Endeavor and GitHub.
  • Ability to troubleshoot and resolve production incidents and application support issues.
  • Experience performing application support activities, including system support, security and audit reviews, and maintenance.
  • Strong written and verbal communication, teamwork, and organizational skills.
  • Ability to solve complex technical problems in a collaborative environment.
  • Ability to manage multiple priorities based on business impact and urgency.
  • Experience with unit testing and integration testing.
  • Ability to work independently and take initiative.
  • Experience with Google BigQuery and Google Cloud Platform (Google Cloud Platform) is a plus.

What Makes HTC A Great Place To Build Your Future

HTC Global Services wants you to join our team. Come build new things with us and advance your career. At HTC Global, you ll collaborate with experts, work alongside clients, and be part of high-performing teams driving success together. You ll have long-term opportunities to grow your career and develop skills in the latest emerging technologies.

At HTC Global Services, our employees have access to a comprehensive benefits package. Benefits can include Group Health (Medical, Dental, and Vision), Paid Time Off, Paid Holidays, 401(k) matching, Group Life and Disability insurance, Professional Development opportunities, Wellness programs, and a variety of other perks.

Our success as a company is built on inclusion and diversity. HTC Global Services is committed to providing a workplace free from discrimination and harassment, where every employee is treated with dignity and respect. We celebrate differences and believe that diverse cultures, perspectives, and skills drive innovation and success. 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.

#LI-Hybrid #LI-CP1

Skills

SOAP
BigQuery
COBOL
Google Cloud
REST

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