Senior Software Engineer – Mainframe (COBOL, CICS, DB2)

HTC Global Services; Dearborn (MI); Hybrid; USD 120,000 - 160,000; Full time

Benefits offered by this job

Group Health Insurance

Paid Time Off

Paid Holidays

401(k) Matching

Life & Disability Insurance

Professional Development

Wellness Programs

Job summary

HTC Global Services is seeking a Senior Mainframe Software Engineer to design, develop, test, maintain, and support COBOL-based applications on z/OS with CICS and JCL. The role emphasizes AI-assisted development and modern tooling to accelerate delivery and quality.

The position requires extensive mainframe experience, strong knowledge of COBOL, z/OS, CICS, JCL, TSO/ISPF, and DB2/SQL, plus experience with REST APIs, testing, and Agile practices. Hybrid work arrangement preferred.

Qualifications

• Bachelor's degree in a relevant field.
• 10+ years of IT experience.
• 8+ years of software development experience.
• Experience with COBOL and mainframe systems.
• Experience with z/OS.
• Experience with CICS.
• Experience with JCL.
• Experience with TSO/ISPF.
• Experience with IBM DB2 and SQL.
• Experience with REST APIs and JSON.
• Experience with software testing and application testing.
• Experience with performance testing and root cause analysis.
• Experience with batch processing and program analysis.
• Experience with requirements analysis and application support.
• Experience with Agile software development.
• Experience with GitHub.
• Experience with GitHub Copilot and AI-assisted development.
• Experience with prompt engineering, LLM API integration, and AI code review.
• Experience with CA-7 and AIPGEE.

Responsibilities

• Engage with customers to understand use cases and advocate for user-centric software solutions.
• Design, develop, test, and deliver software solutions using appropriate tools and technologies.
• Use AI-assisted coding tools such as GitHub Copilot or similar assistants.
• Assess requirements and determine technology stacks, integration methods, and deployment strategies.
• Create high-level software architecture designs outlining components and interfaces.
• Collaborate with product owners, designers, and architects.
• Define and implement software testing strategies and processes.
• Continuously improve application performance and development efficiency.
• Apply software development practices such as TDD, CI/CD.
• Support security practices including encryption and anonymization.
• Create user-friendly and interactive interfaces.
• Develop and maintain back-end applications, APIs, and microservices.
• Evaluate emerging technologies and capabilities for solutions.
• Monitor and participate in new technology stack layers and industry collaboration.

Skills

COBOL

Mainframe systems

z/OS

CICS

JCL

TSO/ISPF

IBM DB2/SQL

REST APIs/JSON

Agile software dev

GitHub

AI-assisted development

Prompt engineering

LLM API integration

AI code review

GitHub Copilot

Education

Bachelor's degree

Tools

GitHub Copilot

CA-7

AIPGEE

Job description

Job Description

Senior Mainframe Software Engineer – COBOL / z/OS / CICS

Overview

We are seeking a Senior Mainframe Software Engineer to design, develop, test, maintain, and support software applications and products. This role is involved throughout the software development lifecycle, including software architecture, coding, testing, deployment, application performance optimization, and application support.

The position will also leverage AI-assisted development tools and techniques to accelerate delivery, improve code quality, and enhance team productivity.

Key Responsibilities

• Engage with customers to understand use cases, pain points, and requirements and advocate for user-centric software solutions.
• Design, develop, test, and deliver software solutions using appropriate tools, programming languages, frameworks, methodologies, and technologies.
• Use AI-assisted coding tools such as GitHub Copilot, OpenCode, or similar LLM-based development assistants.
• Assess software application and service requirements and determine appropriate technology stacks, integration methods, and deployment strategies.
• Create high-level software architecture designs outlining application structure, components, and interfaces.
• Collaborate with cross-functional teams, including product owners, designers, and architects.
• Define and implement software testing strategies, guidelines, policies, and processes.
• Continuously improve application performance and optimize applications to increase development efficiency.
• Apply software development practices such as test-driven development, continuous integration, and continuous delivery.
• Support security practices designed to safeguard user data, including encryption and anonymization.
• Create user-friendly and interactive interfaces.
• Develop and maintain back-end applications, including APIs and microservices, using server-side programming languages.
• Evaluate and incorporate emerging technologies and capabilities into software solutions.
• Monitor and participate in solutions involving new technology stack layers and industry collaboration.

Required Qualifications

• Bachelor's degree.
• 10+ years of IT experience.
• 8+ years of software development experience.
• Practical experience in two coding languages or advanced practical experience in one coding language.
• Experience with COBOL and mainframe systems.
• Experience with z/OS.
• Experience with CICS.
• Experience with JCL.
• Experience with TSO/ISPF.
• Experience with IBM DB2 and SQL.
• Experience with REST APIs and JSON.
• Experience with software testing and application testing.
• Experience with performance testing and root cause analysis.
• Experience with batch processing and program analysis.
• Experience with requirements analysis and application support.
• Experience with Agile software development.
• Experience with GitHub.
• Experience with GitHub Copilot and AI-assisted development.
• Experience with prompt engineering, LLM API integration, and AI code review.
• Experience with CA-7 and AIPGEE.

Preferred Qualifications

• Experience with process improvement.
• Experience with Google Cloud Platform.
• Experience with BigQuery.
• Experience with data migration.
• Experience with data management.

Work Arrangement

• Hybrid work environment with four days per week in the office.
• Overtime may be required.

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.