Mainframe Developer

Ethereum Technologies; Charlotte (NC); On-site; USD 110,000 - 150,000; Full time

Job summary

Ethereum Technologies in Charlotte, NC seeks an experienced Software Engineer to design, develop, test, and maintain mainframe COBOL applications in a regulated banking environment. You will participate in end-to-end SDLC, support high-volume batch and online processing, and contribute to performance tuning and reliability.

The role requires strong COBOL on z/OS, JCL, VSAM, DB2/IMS, and experience with agile SDLC. Familiarity with Endevor and AI tooling is a plus; Bachelor's degree is preferred.

Qualifications

• 5+ years of Software Engineering experience or equivalent.

Responsibilities

• Design, develop, test, and maintain mainframe COBOL applications supporting core banking functions.

Skills

COBOL on z/OS

JCL

VSAM

Agile SDLC

AI tooling

Education

Bachelor's degree in CS/Engineering

Tools

Endevor

DB2/IMS

GitHub Copilot

Job description

US Citizen, Green Card, H-1B, OPT-EAD, CPT, Other

• 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

Required Qualifications:

• 5+ years of Software Engineering experience, or equivalent demonstrated experience
• Strong hands‑on experience with COBOL development on z/OS
• Experience with mainframe batch and online processing
• Working knowledge of JCL, VSAM, and mainframe data structures
• Experience with DB2 and/or IMS databases
• Experience with GitHub Copilot and AI tooling
• Familiarity with Endevor or similar source control/version management tools
• Experience supporting production systems in a regulated or mission‑critical environment
• Ability to analyze complex system behaviors and troubleshoot issues effectively
• Experience working within Agile or structured SDLC methodologies .

Desired Qualifications:

• 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

We are an equal opportunity employer. All aspects of employment including the decision to hire, promote, discipline, or discharge, will be based on merit, competence, performance, and business needs. We do not discriminate on the basis of race, color, religion, marital status, age, national origin, ancestry, physical or mental disability, medical condition, pregnancy, genetic information, gender, sexual orientation, gender identity or expression, national origin, citizenship/ immigration status, veteran status, or any other status protected under federal, state, or local law.