Demo

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

HTC Global Services
Livonia, MI Full Time
POSTED ON 8/25/2026
AVAILABLE BEFORE 9/29/2026
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 (GCP) 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.

Salary.com Estimation for Senior Mainframe Software Engineer (COBOL, DB2, z/OS) in Livonia, MI
$82,207 to $104,984
If your compensation planning software is too rigid to deploy winning incentive strategies, it’s time to find an adaptable solution. Compensation Planning
Enhance your organization's compensation strategy with salary data sets that HR and team managers can use to pay your staff right. Surveys & Data Sets

What is the career path for a Senior Mainframe Software Engineer (COBOL, DB2, z/OS)?

Sign up to receive alerts about other jobs on the Senior Mainframe Software Engineer (COBOL, DB2, z/OS) career path by checking the boxes next to the positions that interest you.
Income Estimation: 
$110,730 - $135,754
Income Estimation: 
$128,617 - $162,576
Income Estimation: 
$117,033 - $148,289
Income Estimation: 
$88,984 - $115,784
Income Estimation: 
$111,369 - $141,168
Income Estimation: 
$117,871 - $153,580
Income Estimation: 
$109,939 - $144,341
Income Estimation: 
$114,500 - $144,633
Employees: Get a Salary Increase
View Core, Job Family, and Industry Job Skills and Competency Data for more than 15,000 Job Titles Skills Library

Job openings at HTC Global Services

  • HTC Global Services Grand Rapids, MI
  • Job Description Job Title: Agile Scrum Master Overview / Summary We are seeking an Agile Scrum Master to own the Scrum board in partnership with the Produc... more
  • 2 Days Ago

  • HTC Global Services Southfield, MI
  • Job Description Senior Scrum Master – Application Development & DevOps Delivery Bring your Scrum leadership experience to a modern application-development ... more
  • 2 Days Ago

  • HTC Global Services Dearborn, MI
  • Job Description Job Title HIL Test Engineer (Controls & Test Automation) Overview / Summary We are seeking a Test Engineer to support controls software val... more
  • 2 Days Ago

  • HTC Global Services Dearborn, MI
  • Cloud Prognostics Systems Engineer Overview / Summary We are seeking a Cloud Prognostics Systems Engineer to support the development and delivery of progno... more
  • 2 Days Ago


Not the job you're looking for? Here are some other Senior Mainframe Software Engineer (COBOL, DB2, z/OS) jobs in the Livonia, MI area that may be a better fit.

  • OneStream Software Rochester, MI
  • Description Senior Software Engineer Location: Remote, USA Employment Type: Full-Time Benefits offered: Vision, medical, Life, Dental, 401K Gross Annual Ba... more
  • 22 Days Ago

  • Controls Engineer THE COMPANY Invio Automation New Baltimore, MI
  • Senior Controls Engineer THE COMPANY Invio Automation is an Industry 4.0 automation leader that serves a variety of high-growth end-markets including medic... more
  • 30 Days Ago

AI Assistant is available now!

Feel free to start your new journey!