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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Principal IOM Mainframe Developer - **Company:** Fmr LLC - **Location:** Smithfield, RI, United States - **Experience:** Expert - **Contract:** Permanent contract - **Skills:** Java (Programming Language), Customer Information Control System (CICS), Cloud Computing, COBOL (Programming Language), Databases, Software Debugging, Endevor, Job Control Language (JCL), Mainframes, Software Engineering, Software Systems, SQL Stored Procedures, Virtual Storage Access Methods, File-aid - **Published:** June 24, 2026 - **Apply:** https://www.indeed.com/viewjob?jk=48974326a3858118 ## About the Role Do you have experience in Mainframe development?, Do you have a Bachelor's degree?, * 8+ years of software development experience with large mainframe-based systems. * BS/BA or advanced degree, or equivalent experience preferred. * Solid hands-on development skills in mainframe languages and technologies (Cobol, CICS, VSAM, JCL, utilities, FileAid, Endevor, debuggers, schedulers, etc.). * Proficiency with the DB2 database management system and database processing concepts. * Knowledge of native stored procedures is a plus. * Deploy and support software releases into production environments. * Strong knowledge of and experience with the overall testing process. * Any knowledge or experience in distributed technologies, cloud computing, and/or Java programming is a plus. * Ability to work with business partners to help define requirements and solutions. * Provide estimates and scoping for proposed projects. * Ability to perform detailed analysis for maintenance and enhancement projects, both batch and online. * Proven and strong interpersonal and organizational skills coupled with effective written communication skills. * Confidence to think and act strategically, share innovative insights, and offer creative solutions to deliver exceptional user experiences. * Embrace flexibility and shift focus to meet the most pressing customer/client needs. * You bring a growth mentality to work every day as you continue to learn new applications and technologies and are willing to share that knowledge with your fellow squad members. ## Description Seeking a Principal Software Engineer with superb mainframe technical and analytical skills to help maintain, enhance, and transform high volume production platforms in the Defined Contribution Product Record Keeping domain of Workplace Investing Technology. Our mission is to enable millions of Fidelity customers to better prepare for retirement while delivering outstanding customer experiences. As part of this effort, you will engage collaboratively with systems and business partners to deliver high quality and innovative software solutions. As a principal software engineer, you will apply your skills in all aspects of various projects including design, development, and implementation. You should have a desire to gain an understanding of our systems and business, as well as providing leadership, guidance, and mentoring as needed to other team members. The Team We are an agile squad providing support and development within the Defined Contribution Product recordkeeping platforms. Working together and with other squads, we deliver solutions to our customers by aligning the right skillsets to their most critical business priorities. 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