Ensono · 6 hours ago
Mainframe Senior Developer
St. Paul, MN
Full-time
Hybrid
Senior Level, Lead/Staff
$100K/yr - $120K/yr
15+ years expEnsono is a technology adviser and managed service provider that empowers clients to achieve key business outcomes. The Mainframe Senior Developer role requires a highly skilled individual to support, maintain, and enhance mainframe applications, utilizing expertise in various mainframe technologies and DevOps practices.
Cloud InfrastructureCloud ManagementCloud SecurityInformation ServicesInformation Technology
Responsibilities
Design, develop, and maintain Mainframe applications using COBOL, CICS, IMS DB/DC, DB2, MQ and VSAM
Experience in enterprise-level ticketing systems (ServiceNow, JIRA, HPPPM etc.) and their operational workflows
Worked on waterfall and agile methodology projects; capable of handling - Incidents, Service Requests and Change Requests simultaneously
Provide technical troubleshooting and resolution for complex application and integration
Conduct performance tuning and optimization of Mainframe applications and database queries
Develop technical documentation (Knowledge Base articles, SOPs) for business and support teams
Understand both functional and technical requirements and provide implementation/change options aligned with business needs
Qualification
Required
Bachelor's or Master's degree in Computer Science, Information Technology, or a related field
Extensive experience in mainframe application development, support and maintenance
Experience using Telon
Proficiency in mainframe technologies such as COBOL, JCL, CICS, DB2, IMS DC/DB, MQ and VSAM
Strong understanding of software development life cycle (SDLC) methodologies
Experience with version control systems and software development tools
Excellent problem-solving and analytical skills
Strong communication and interpersonal skills
Ability to work independently and as part of a team
Benefits
Unlimited Paid Days Off
Three health plan options
401k with company match
Eligibility for dental, vision, short and long-term disability, life and AD&D coverage, and flexible spending accounts
Family Forming Benefit including fertility coverage and adoption/surrogacy reimbursement
Paid childbearing and paternal leave
Education Reimbursement, Student Loan Assistance or 529 College Funding
Sabbatical leave
Wellness program
Flexible work schedule
Company
Ensono
Ensono delivers managed IT services to optimize and modernize mainframes, infrastructure, and cloud for clients.
1001-5000 employees
H1B Sponsorship
Ensono has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (27)
2024 (20)
2023 (16)
2022 (19)
2021 (19)
2020 (7)
Funding
Current Stage
Late StageTotal Funding
unknown2021-04-14Acquired
Leadership Team
Jeff VonDeylen
Chief Executive Officer
R
Richard Dresden
Senior Vice President - Sales and Field Operations
Recent News
2025-12-09
2025-10-28
Company data provided by crunchbase