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Mainframe Engineer

Eliassen Group

Westlake, TX • 10/20/2026

Engineering , Information Technology , Professional

Job Description

Job Description
Description:

Onsite in Westlake, TX

Our client seeks a Mainframe Engineer to develop and maintain high-volume, business-critical money movement platforms within brokerage record-keeping technology. You will collaborate with product, architecture, operations, and vendor partners to deliver stable, secure, and high-quality software across batch and online environments. The role requires strong COBOL, CICS, DB2, VSAM, and JCL expertise, with a focus on analysis, testing, release management, and production support. Exposure to cloud integration, RESTful services, and stored procedures is beneficial.

Due to client requirements, applicants must be willing and able to work on a w2 basis. For our w2 consultants, we offer a great benefits package that includes Medical, Dental, and Vision benefits, 401k with company matching, and life insurance.

Rate: $55.00 to $60.00/hr. w2

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Responsibilities:
  • Engage with business and systems partners to deliver high-quality, innovative software solutions.
  • Develop, maintain, and enhance mainframe applications across batch and online environments.
  • Perform detailed analysis for maintenance and enhancement projects.
  • Design, deploy, and support software releases into production environments.
  • Collaborate with operations teams and vendors to ensure system stability and performance.
  • Employ data security practices to safeguard customer information.
  • Execute thorough unit, functional, and regression testing.
  • Identify root causes of problems and implement technical solutions.
  • Handle high-severity and critical production issues.
  • Create and maintain clear, accurate technical documentation.
Experience Requirements:
  • 7 to 10 years of software development experience in business-critical, enterprise applications.
  • Excellent mainframe development skills in COBOL, CICS, DB2, VSAM, JCL, IBM utilities, FileAID, Endevor, SQL, debuggers, schedulers, and IOMs.
  • Proven ability to perform hands-on, detailed analysis for batch and online systems.
  • Experience designing, deploying, and supporting production software releases.
  • Demonstrated capability to troubleshoot and resolve high-severity production issues.
  • Strong documentation and testing discipline, including unit, functional, and regression testing.
  • Experience writing COBOL or native stored procedures (preferred).
  • Experience with distributed technologies such as Java and RESTful APIs (preferred).
  • Awareness or exposure to cloud platforms such as AWS or Azure, including hybrid mainframe–cloud integration scenarios (preferred).
Education Requirements:
  • BS/BA or advanced degree, or equivalent experience preferred.
  • Training or certification exposure related to AWS or Azure (preferred).
Recruitment Transparency Notice
Eliassen Group values transparency in our recruitment practices. Please be advised that Eliassen Group utilizes artificial intelligence (AI) tools as part of its initial application screeningand hiringprocess. You may receive email and SMS notifications from the Eliassen Virtual Recruiting Team (, ) inviting you to complete a brief voice screening as part of your application process. These tools assist our hiring teams in different ways, including but not limited to, assistance in reviewing application materials to help identify candidates whose qualifications most closely match the requirements of the position. All AI-assisted evaluations and responses are reviewed by human recruiters before any hiring decisions are made. The use of AI in our process is intended to support fairness, efficiency, and consistency, and Eliassen Group takes measures to prevent bias or discrimination in connection with its hiring practices. By proceeding, you acknowledge, agree, and consent to Eliassen Group’s use of these tools, including AI tools, as part of the application and hiring process.

Skills, experience, and other compensable factors will be considered when determining pay rate. The pay range provided in this posting reflects a W2 hourly rate; other employment options may be available that may result in pay outside of the provided range.W2 employees of Eliassen Group who are regularly scheduled to work 30 or more hours per week are eligible for the following benefits: medical (choice of 3 plans), dental, vision, pre-tax accounts, other voluntary benefits including life and disability insurance, 401(k) with match, and sick time if required by law in the worked-in state/locality.If anyone reaches out to you about an open position connected with Eliassen Group, please ensure that you are working directly with us by confirming the following:

· When you work with Eliassen Group, all email communication will come from an Eliassen.com address, never Gmail, Yahoo, etc.

· Eliassen Group will never ask you for personal information (home address, bank account, or check routing number) until you have worked with someone clearly associated with Eliassen Group.

If you have any indication of fraudulent activity, please contact.

About Eliassen Group:
Eliassen Group is a strategic consulting firm that helps organizations reach further and achieve more through our technology, business advisory, and life sciences solutions. For nearly 40 years, we have combined exceptional people, deep domain expertise, and intelligent capabilities to expand our clients’ capacity and accelerate meaningful outcomes. We are driven by a purpose to positively impact the lives of our employees, clients, consultants, and the communities we serve.
Eliassen is committed to building a diverse and inclusive team from a variety of backgrounds, perspectives, and skills. We are an Equal Opportunity and Affirmative Action Employer and all employment decisions are based on merit, performance, and business needs. Eliassen does not discriminate on the basis of race, color, gender identity or expression, sexual preference or orientation, sex (including pregnancy, childbirth, and related medical conditions), marital status, creed, religion, physical or mental disability, genetic information, military or veteran status, age, ancestry, national origin, citizenship status, prohibited criminal record inquiries of applicants and employees, or any other category protected by federal, state, or local laws.
Don’t miss out on our referral program! If we hire a candidate that you refer us to then you can be eligible for a $1,000 referral check!