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Senior Software Engineer - Mainframe

ensono

Backend Full-time Permanent US

Job details

Not specified Salary
US Eligibility
Senior Experience
Full-time Employment

About this role

Role overview

This senior-level position focuses on supporting, maintaining, and enhancing a suite of critical mainframe applications. The role combines hands-on technical work with technical leadership, mentoring junior developers while acting as a subject-matter expert across enterprise application support and delivery.

Responsibilities

- Design, develop, and maintain mainframe applications using COBOL, CICS, JCL, DB2, and VSAM. - Lead complex troubleshooting and resolution for application and integration issues. - Conduct performance tuning and optimization of mainframe applications and database queries. - Manage incidents, service requests, and change requests through enterprise ticketing systems such as ServiceNow. - Translate functional and technical requirements into implementation options that align with business needs. - Author and maintain technical documentation, including knowledge-base articles and standard operating procedures.

Requirements

- Bachelor's or Master's degree in Computer Science, Information Technology, or a related field. - 8+ years of specialized experience in mainframe application development, support, and maintenance. - Proficiency in COBOL, JCL, CICS, DB2, and VSAM, plus strong command of SDLC methodologies. - Hands-on experience with version control systems and modern software development tools. - Comfort working across both waterfall and agile delivery models. - Excellent problem-solving, analytical, and interpersonal communication skills.

Nice to have

- Prior experience acting as a technical lead guiding junior engineers. - Familiarity with DevOps practices applied to mainframe environments.

Benefits and work setup

- Unlimited paid days off plus a flexible work schedule. - Three health plan options, 401(k) with company match, and eligibility for dental, vision, short- and long-term disability, life and AD&D, and flexible spending accounts. - Family-forming benefits including fertility coverage and adoption or surrogacy reimbursement. - Paid parental leave, education reimbursement, student loan assistance, sabbatical leave, and a wellness program. - Remote-first posture when client site presence is not required, with the option to work from home or office. - Annual bonus plan plus eligibility for an equity appreciation grant based on company and individual performance.

Detected Sep 3, 2026
Last verified Sep 3, 2026
Original source: ensono.com · application link requires Hidden Jobs Access

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