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Mainframe AP Integration Engineer (z/OS Connect)

Roles & Responsibilities

  • IBM z/OS Connect (Designer, API toolkit, or VS Code tools)
  • Strong REST API development with OpenAPI 3.0
  • Mainframe technologies: CICS, IMS, Db2, COBOL, PL/I
  • Data mapping COBOL ↔ JSON (JSONata or similar tools)

Requirements:

  • Build and deploy APIs connecting mainframe systems to modern applications
  • Design and manage API specifications using OpenAPI
  • Transform legacy data structures into JSON-based services
  • Troubleshoot and optimize API performance on z/OS

Job description

Description:

CTG is hiring a Mainframe API Integration Engineer to support enterprise modernization initiatives by exposing core mainframe systems as RESTful services.

 

Location: Remote
Duration: 8 months

 

Top Skills (Must-Have):

  • IBM z/OS Connect (Designer, API toolkit, or VS Code tools)
  • Strong REST API development + OpenAPI 3.0
  • Mainframe technologies: CICS, IMS, Db2, COBOL, PL/I
  • Data mapping: COBOL ↔ JSON (JSONata or similar tools)
  • Understanding of API security (authentication/authorization)

What You’ll Do:

  • Build and deploy APIs connecting mainframe systems to modern applications
  • Design and manage API specifications using OpenAPI
  • Transform legacy data structures into JSON-based services
  • Support integration across hybrid-cloud environments
  • Troubleshoot and optimize API performance on z/OS

Nice to Have:

  • Azure API Management
  • Enterprise integration / hybrid-cloud experience
  • JCL, batch processing, and z/OS workflows

Education:

  • Bachelor’s degree in Computer Science, Information Technology, or a related field (or equivalent work experience)

Excellent verbal and written English communication skills and the ability to interact professionally with a diverse group are required.

 

CTG does not accept unsolicited resumes from headhunters, recruitment agencies, or fee based recruitment services for this role.

 

To Apply:
To be considered, please apply directly to this requisition using the link provided. For additional information, please contact Malti Jha at Malti.Jha@ctg.com. Kindly forward this to any other interested parties. Thank you!

 

The expected base salary for this position ranges from $85,000 to $95,000. Salary offers are based on a wide range of factors including relevant skills, training, experience, education, market factors, and where applicable, licensure or certifications obtained. In addition to salary, a competitive benefit package is also offered.

About Us:

CTG, a Cegeka company, delivers IT and business solutions that enhance clients’ digital agility, empowering them to seize new opportunities and overcome any challenge. Backed by more than 60 years’ experience and a commitment to being a reliable, results-driven partner, we work shoulder to shoulder with clients to shape digital together. Our vision is to be an indispensable partner to our clients and the preferred career destination for digital and technology experts. With more than 9,000 team members in over 15 countries, we combine global expertise with local insight to deliver innovative solutions. We operate across the Americas, Europe, and India, working with over 3,000 clients in many of today's highest-growth industries.

Together, we shape what’s next—working shoulder to shoulder to deliver impactful solutions for our clients and society. Our culture is built by the people who work at CTG, the values we hold, and the actions we take. It's a living, breathing thing that is renewed every day through the ways we engage with each other, our clients, and our communities. At CTG, you’ll find a workplace where you are encouraged to grow, supported in your ambitions, and empowered to shape your own career journey. For more information, visit www.ctg.com.

CTG will consider for employment all qualified applicants including those with criminal histories in a manner consistent with the requirements of all applicable local, state, and federal laws.

CTG is an Equal Opportunity Employer. CTG will assure equal opportunity and consideration to all applicants and employees in recruitment, selection, placement, training, benefits, compensation, promotion, transfer, and release of individuals without regard to race, creed, religion, color, national origin, sex, sexual orientation, gender identity and gender expression, age, disability, marital or veteran status, citizenship status, or any other discriminatory factors as required by law. CTG is fully committed to promoting employment opportunities for members of protected classes.

 

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