> Markdown version of [/jobs/ext/2756272-senior-mainframe-developer](https://www.wearedevelopers.com/jobs/ext/2756272-senior-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). --- # Senior Mainframe Developer - **Company:** Ensono - **Location:** Boston, MA, United States (Remote available) - **Experience:** Expert - **Salary:** $102,000.0 - $148,000.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Customer Information Control System (CICS), COBOL (Programming Language), IBM DB2, Database Queries, Job Control Language (JCL), IBM Information Management System, Issue Tracking Systems, Mainframes, Software Tools, Software Engineering, Virtual Storage Access Methods, Mainframe Programming, Information Technology, Software Version Control, Servicenow - **Published:** September 6, 2026 - **Apply:** https://www.bostonjobsite.com/job.asp?id=3379505089&tx=JK7569FFJ&pt=1&aff=0B19D771-A501-4A5E-8338-2A822B784D54&utm_source=Job%20Feed&utm_medium=textkernel&utm_campaign=DE&utm_term=0B19D771-A501-4A5E-8338-2A822B784D54 ## About the Role * Design, develop, and maintain Mainframe applications using COBOL, CICS, IMS DB/DC, DB2, MQ and VSAM. * Experience in Netron Frame technology. * Experience in enterprise-level ticketing systems (ServiceNow, Service Manager, etc.) and their operational workflows. * Worked on waterfall and agile methodology projects; capable of handling - Incidents, Service Requests and Change Requests simultaneously. * Provide technical troubleshooting and resolution for complex application and integration. * Conduct performance tuning and optimization of Mainframe applications and database queries. * Develop technical documentation (Knowledge Base articles, SOPs) for business and support teams * Understand both functional and technical requirements and provide implementation/change options aligned with business needs. * undefined * Education: Bachelor's or Master's degree in Computer Science, Information Technology, or a related field. * Experience: Extensive experience in mainframe application development, support and maintenance * Technical Skills: Proficiency in mainframe technologies such as COBOL, JCL, CICS, DB2, IMS DC/DB, MQ and VSAM, Netron Frame Technology. Strong understanding of software development life cycle (SDLC) methodologies. Experience with version control systems and software development tools. * Soft Skills: Excellent problem-solving and analytical skills. Strong communication and interpersonal skills. Ability to work independently and as part of a team. ## Related Videos - [Cloud as the new mainframe: why the cloud hype does not reflect the dev reality](https://www.wearedevelopers.com/videos/797-cloud-as-the-new-mainframe-why-the-cloud-hype-does-not-reflect-the-dev-reality) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Applying Agile Principles to Incident Management ](https://www.wearedevelopers.com/videos/101-applying-agile-principles-to-incident-management) - [Data Fabric in Action - How to enhance a Stock Trading App with ML and Data Virtualization](https://www.wearedevelopers.com/videos/253-data-fabric-in-action-how-to-enhance-a-stock-trading-app-with-ml-and-data-virtualization) - [".Net is too slow" was not an option](https://www.wearedevelopers.com/videos/100176-net-is-too-slow-was-not-an-option) - [Migrating from COBOL with AI: A Moonshot Demo](https://www.wearedevelopers.com/videos/1531-migrating-from-cobol-with-ai-a-moonshot-demo) ## Related Articles - [How We Built a Worry-Free System That Runs for 10+ Years – And What We’d Do Again](https://www.wearedevelopers.com/magazine/751-how-we-built-a-worry-free-system-that-runs-for-10-years-and-what-we-d-do-again) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [What’s the Difference between a Junior, Mid, and Senior Developer?](https://www.wearedevelopers.com/magazine/238-what-s-the-difference-between-a-junior-mid-and-senior-developer) - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs)