Senior Software Engineer- Mainframe
About The Position
Wells Fargo is seeking a Senior Software Engineer to design, build, and support mission‑critical mainframe applications that power core banking capabilities. This role is part of a highly visible technology team responsible for developing and maintaining high‑volume, highly regulated enterprise systems that require exceptional stability, performance, and resilience. In this role, you will contribute hands‑on to all phases of the software development lifecycle, partner with cross‑functional teams, and support production platforms that operate at enterprise scale. The successful candidate will bring strong COBOL and z/OS expertise, demonstrated production ownership, and an operational mindset suited for a regulated financial institution. In this role, you will: Design, develop, test, and maintain mainframe COBOL applications supporting core banking functions Participate in end‑to‑end SDLC activities, including requirements analysis, design, development, testing, deployment, and support Develop and support batch and online processing workflows in high‑volume environments Analyze and resolve complex production incidents, performing root‑cause analysis and developing preventative solutions Contribute to application enhancements, regulatory changes, and modernization initiatives Collaborate with business partners, architects, QA, and infrastructure teams Participate in release planning, production readiness, and post‑release validation Ensure applications meet Wells Fargo security, risk, compliance, and audit requirements Support operational excellence, including performance tuning and availability improvements Participate in Agile delivery processes and enterprise SDLC standards Hands‑on technical contribution and ongoing production ownership Support critical banking systems with a focus on stability, accuracy, and risk management
Requirements
- 4+ years of Software Engineering experience, or equivalent demonstrated through one or a combination of the following: work experience, training, military experience, education
- 3+ years strong hands‑on experience with COBOL development on z/OS
- 3+ years' experience with mainframe batch and online processing
- 2+ years working experience in JCL, VSAM, and mainframe data structures
- 2+ years' experience with DB2 and/or IMS databases
- 1 year Experience with GitHub Copilot and AI tooling
- 1 year experience with Endevor or similar source control/version management tools like Git
- 1 year experience supporting production systems in a regulated or mission‑critical environment
- 2 years' experience in analyzing complex system behaviors and troubleshoot issues effectively
- 2 years' experience working within Agile or structured SDLC methodologies
Nice To Haves
- Experience supporting core banking, deposits, payments, or financial services systems
- Strong understanding of high‑availability and high‑volume transaction processing
- Experience with regulatory or compliance‑driven system changes
- Familiarity with mainframe integrations (APIs, messaging, file‑based interfaces)
- Experience participating in on‑call rotations and supporting 24x7 production systems
- Exposure to mainframe modernization or hybrid integration initiatives
- Bachelor’s degree in Computer Science, Engineering, or related technical field, or equivalent experience
Responsibilities
- Design, develop, test, and maintain mainframe COBOL applications supporting core banking functions
- Participate in end‑to‑end SDLC activities, including requirements analysis, design, development, testing, deployment, and support
- Develop and support batch and online processing workflows in high‑volume environments
- Analyze and resolve complex production incidents, performing root‑cause analysis and developing preventative solutions
- Contribute to application enhancements, regulatory changes, and modernization initiatives
- Collaborate with business partners, architects, QA, and infrastructure teams
- Participate in release planning, production readiness, and post‑release validation
- Ensure applications meet Wells Fargo security, risk, compliance, and audit requirements
- Support operational excellence, including performance tuning and availability improvements
- Participate in Agile delivery processes and enterprise SDLC standards
- Hands‑on technical contribution and ongoing production ownership
- Support critical banking systems with a focus on stability, accuracy, and risk management
Benefits
- Information about Wells Fargo's US employee benefits
- Information about Wells Fargo's International employee benefits
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What This Job Offers
Job Type
Full-time
Career Level
Senior
