> Markdown version of [/jobs/ext/3845889-mainframe-developer](https://www.wearedevelopers.com/jobs/ext/3845889-mainframe-developer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Mainframe Developer - **Company:** Eliassen Group - **Location:** Pittsburgh, PA, United States - **Experience:** Expert - **Salary:** $156,000.0 - $170,560.0 - **Contract:** Temporary to permanent - **Skills:** Application Programming Interfaces (APIs), Batch Processing, Customer Information Control System (CICS), Cloud Computing, COBOL (Programming Language), Continuous Integration, IBM DB2, Endevor, Job Control Language (JCL), IBM WebSphere MQ, Rexx (Programming Language), Mainframes, Online Transaction Processing, Data Streaming, Virtual Storage Access Methods, Data Processing, Gitlab, Easytrieve, Software Version Control, Control M - **Published:** October 20, 2026 - **Apply:** https://www.juju.com/job/16_e246e3c31 ## About the Role * 7+ years of mainframe development experience, preferably in financial services. * Proficiency in COBOL, JCL, DB2, VSAM, and CICS. * Hands-on experience with Control-M, MQ Series, and Easytrieve or REXX. * Understanding of batch processing, online transaction processing, file-based data flows, and EBCDIC data handling. * Experience with production support and incident resolution. * Experience with CI/CD and source control tools such as Endevor, GitLab, or similar. * Experience in large-scale enterprise environments. * Strong analytical, troubleshooting, and problem-solving skills. * Effective communication and collaboration skills., * Bachelor's degree required. ## Description * Design, develop, test, and implement enhancements for the ACAM platform while supporting modernization initiatives. * Develop and maintain mainframe applications using COBOL, JCL, DB2, VSAM, and CICS. * Support batch processing by building, maintaining, and troubleshooting Control-M schedules and related processes. * Investigate and resolve production issues, perform root-cause analysis, and ensure application stability and reliability. * Collaborate with product teams, production support, business stakeholders, and offshore development teams to gather requirements and deliver technical solutions. * Contribute to modernization via CI/CD practices, cloud technologies, API enablement, and hybrid integration strategies. * Review and maintain technical documentation and participate in knowledge sharing across global teams.