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Mainframe Developer

Minneapolis, MN

Posted: 05/06/2026 Industry: Engineering - Software & Systems Job Number: 6926

Job Description


Mainframe Developer (COBOL / VSAM) – Enterprise Core Systems
Location: Minneapolis, MN (Hybrid – 3 days onsite / 2 remote)

We partner with leading enterprise technology environments to secure engineers who specialize in maintaining and evolving mission-critical systems that power high-volume financial operations.

This opportunity is ideal for a Mainframe Developer who thrives in stability-focused, high-impact environments, where precision, system integrity, and deep technical knowledge matter more than greenfield builds.

You’ll join a long-standing engineering team in Minneapolis responsible for core data distribution and deposit systems, supporting applications that process and validate critical financial data at scale. These are highly integrated, legacy platforms where performance, accuracy, and uptime are non-negotiable.

This is not a “build from scratch” role — it’s about owning, improving, and protecting systems that already work at scale.

What You’ll Do:

  • Enhance and maintain complex COBOL-based applications supporting core business operations

  • Work heavily with VSAM datasets and batch processing workflows

  • Develop and modify JCL to support production job streams and data processing

  • Validate and distribute high-volume data across interconnected systems

  • Troubleshoot and resolve production issues in a controlled, process-driven environment

  • Participate in Agile ceremonies while operating within structured enterprise change management

  • Contribute to system stability and continuous improvement of long-standing applications

  • Support and mentor junior engineers on mainframe best practices

What You Bring:

  • Strong COBOL development experience in enterprise mainframe environments

  • Deep hands-on experience with VSAM and batch processing

  • Proven ability to work within highly customized, legacy systems

  • Solid understanding of JCL and production workflows

  • Experience supporting business-critical applications where downtime is not an option

What Sets You Apart:

  • Background in financial services or regulated environments

  • Understanding of how transactional data (accounts, routing, deposits) flows through systems

  • Experience working in batch-heavy, overnight processing environments

  • Familiarity with tools like ServiceNow for incident/change management

  • Ability to mentor and elevate junior talent

Work Environment:

  • Hybrid schedule based in Minneapolis, MN (3 days onsite / 2 remote)

  • Long-term engagement supporting enterprise-scale systems

  • Collaborative team with deep institutional knowledge

This role is for engineers who take pride in owning complex systems, ensuring stability, and making incremental improvements that drive real business impact.

Meet Your Recruiter

John Briggs
Technical Recruiting Manager

With over 12 years in IT talent acquisition, John Briggs is a business leader specializing in workforce strategy, technical hiring, and market-driven talent solutions. As a Technical Recruiting Manager at CornerStone TTS, John has been instrumental in optimizing hiring frameworks, expanding technical talent pipelines, and driving workforce planning initiatives. His expertise spans application development, cloud computing, cybersecurity, and full-cycle IT hiring. John works closely with business leaders and technical teams to align hiring with emerging trends, leverage AI-driven recruitment technology, and refine scalable hiring strategies. Known for his ability to bridge technical expertise with organizational needs, John cultivates trusted relationships that enhance retention and drive strategic placements. His ability to integrate data-driven talent acquisition with consultative workforce solutions makes him a key driver of TTS’s success, ensuring companies secure specialized talent that aligns with long-term business objectives.

 

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About Minneapolis, MN

Ready to take the next step in your career? Explore our job opportunities in the vibrant Minneapolis, Minnesota area! Known for its picturesque lakes, thriving arts scene with renowned spots such as the Walker Art Center and Guthrie Theater, and home to the iconic Mall of America, this region offers a perfect blend of urban excitement and natural beauty. With top-tier professional sports teams like the Minnesota Vikings and Timberwolves, delicious local cuisine including Juicy Lucys and Scandinavian pastries, and an abundance of parks and outdoor activities like Minnehaha Falls and the Chain of Lakes, Minneapolis provides an unmatched quality of life for job seekers looking to grow their careers. Join us in discovering all that this charming and diverse area has to offer!
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