> Markdown version of [/jobs/ext/610389-mainframe-developer](https://www.wearedevelopers.com/jobs/ext/610389-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:** Siri InfoSolutions Inc - **Location:** Plano, TX, United States - **Experience:** Expert - **Salary:** $110,000.0 - $130,000.0 - **Contract:** Permanent contract - **Skills:** Agile Methodology, Applications Architecture, Application Performance Management, IBM System I, Customer Information Control System (CICS), COBOL (Programming Language), Computer Programming, Databases, IBM DB2, Software Debugging, Endevor, Job Control Language (JCL), Mainframes, Release Management, Software Engineering, Virtual Storage Access Methods, Enterprise Software Applications, Gitlab, Build Process - **Published:** June 23, 2026 - **Apply:** https://www.careerjet.com/jobad/us0df672a0e6f58dd5e6ba88b4b5752968 ## About the Role 7+ years of experience with developing and implementing applications 10 to 15 years of experience in Cobol, JCL,DB2 Preferred Skills/Experience: Cobol, JCL,DB2, CICS and VSAM development experience. Strong Endevor, File Manager, CA7, IDZ, GITLAB and TSO Development skills, Tool experience. Excellent debugging skills Good understanding of third-party dependency management and transitive dependency issues Strong knowledge on DB2 database Understanding of the software development life cycle/Agile development experience Experience with implementation and release management activities Good understanding of unit/system and functional testing methodologies Experience working in large transaction-based systems Experience writing technical designs Experience documenting technical functions Strong Communication and good leadership skills Have a strong ability and interest in working with a diverse range of technical and non-technical teams. Strong proclivity to follow coding standards and execute a best practices approach in build processes. Nice to have: MQ knowledge Desired Skills: Preferred Banking/credit cards domain knowledge Quality leadership and mentoring skills Ability to work under minimal supervision Ability to foster strong collaboration among team members and multitask effectively Ability to investigate and recommend best practices and process improvements Detail oriented and able to debug complex errors. Subject matter expert in: Programming, Implementation ## Description Design, code, test, debug, document, maintain, and modify computer programs of high complexity, significance, and risk Participate in application architecture functions including estimating and defining time tables, cost and project tasks Recommend solutions to improve business with a focus on core architecture, technology strategies and standards Guide others through change impact analysis Establish, refine and integrate development and test environment tools and software as needed Review, analyze, refine and integrate development and test environment tools and software as needed Create and recommend improvements to unit, test plans and testing process based on assessment of organizational needs Collaborate closely with teams in all stages of software development lifecycle including design, development and testing of the system Design basic and detailed program specifications while ensuring that expected application performance levels are achieved by managing interfaces, service levels, standards, and configurations Guide technical staff and business partners to investigate, review, and solve complex, multidisciplinary business problems Monitor operating efficiency and organizational needs of existing application systems and identify opportunities to fine-tune and optimize applications of developed projects and recommend technical solutions Demonstrate solid understanding of the business needs driving the projects, Role Descriptions: We are seeking a skilled Mainframe and AS400 Developer to design| develop| maintain| and support enterprise applications running on mainframe and IBM AS400/iSeri… + 1 day ago + Apply easily, Job Description Must Have Technical/Functional Skills We are seeking a skilled Mainframe and AS400 Developer to design, develop, maintain, and support enterprise applications r… + 2 days ago + Apply easily + ## Related Videos - [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) - [WeAreDevelopers LIVE - Modern DevOps for IoT Devices and More](https://www.wearedevelopers.com/videos/1805-wearedevelopers-live-modern-devops-for-iot-devices-and-more) - [Building with IBM Bob](https://www.wearedevelopers.com/videos/100275-building-with-ibm-bob) - [Enabling automated 1-click customer deployments with built-in quality and security](https://www.wearedevelopers.com/videos/83-enabling-automated-1-click-customer-deployments-with-built-in-quality-and-security) - [Can This Elephant Dance? IBM Bob and the Future of AI-First Software Development](https://www.wearedevelopers.com/videos/100256-can-this-elephant-dance-ibm-bob-and-the-future-of-ai-first-software-development) - [Are Code Reviews Worth It? Insights from 16 Years of Review Data](https://www.wearedevelopers.com/videos/1135-are-code-reviews-worth-it-insights-from-16-years-of-review-data) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [7 Important Tips That Every Software Developer Should Know](https://www.wearedevelopers.com/magazine/101-7-important-tips-that-every-software-developer-should-know) - [The Best Software Developer Blogs to Read](https://www.wearedevelopers.com/magazine/156-the-best-software-developer-blogs-to-read) - [93 Java Interview Questions You Should Prepare For](https://www.wearedevelopers.com/magazine/14-93-java-interview-questions-you-should-prepare-for) - [Now is the time for industrialized software development](https://www.wearedevelopers.com/magazine/601-now-is-the-time-for-industrialized-software-development) - [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)