Senior Cobol Developer Jobs (NOW HIRING)

Job Title: Senior Mainframe Applications Developer (COBOL)
Role Overview
We are seeking a Senior Mainframe Applications Developer to design, develop, and integrate complex information systems within our core enterprise environment. You will be the technical lead for our mission-critical batch processing applications, ensuring that our core systems remain high-performing, reliable, and scalable.
This is a key technical role for a developer who understands the rigor of mainframe environments. You will own the full development lifecycle-from research and requirements definition to coding, testing, and debugging. If you are a seasoned COBOL developer who enjoys leading small-to-medium project efforts and translating complex technical logic into meaningful results for business stakeholders, we want to talk to you.
Key Responsibilities
System Development & Optimization
• Application Design: Formulate and define system scope and objectives. Translate business requirements into robust, high-performing application logic and procedures.
• Full-Lifecycle Coding: Design, code, test, and debug complex COBOL programs, subroutines, and scripts. Optimize systems for capacity, response time, and operating efficiency.
• System Stability: Serve as a subject matter expert during system failures. Implement proactive measures to eliminate the recurrence of technical issues and reduce overall system downtime.
Leadership & Strategy
• Technical Mentorship: Provide guidance and training to junior analysts/programmers, fostering a culture of technical excellence and adherence to programming standards.
• Project Leadership: Act as a project lead, technical lead, or systems analyst for core initiatives. Manage phases of medium-to-large projects and ensure adherence to IT standards and methodologies.
• Business Partnership: Translate complex technical/mainframe concepts into clear, actionable insights for non-technical project team members and business personnel.
Qualifications & Requirements
Minimum Qualifications
• Education: Bachelor's degree in Computer Science, Business, or equivalent technical work experience (1:1 ratio for degree years/experience).
• Experience Baseline: 3+ years of systems and programming experience; 1+ years of expert-level working knowledge of COBOL.
• Technical Mastery: Proven experience with mainframe information technology environments and SQL.
• Core Competency: Demonstrated experience with complex batch processing and core financial data workflows.
Preferred Attributes
• Proven ability to lead large, complex project workstreams independently.
• Exceptional analytical and problem-solving skills, with a "work-ethic" mindset focused on reliability and organization.
• Ability to communicate effectively across both technical engineering teams and non-technical business units.
Equal Opportunity Employer / Disabled / Protected Veterans
The Know Your Rights poster is available here:
https://www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_KnowYourRights6.12.pdf
The pay transparency policy is available here:
https://www.dol.gov/sites/dolgov/files/ofccp/pdf/pay-transp_%20English_formattedESQA508c.pdf
For temporary assignments lasting 13 weeks or longer, AllSTEM Connections is pleased to offer major medical, dental, vision, 401k and any statutory sick pay where required.
We are committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation for any part of the employment process, please contact your staffing representative who will reach out to our HR team.
AllSTEM Connections participates in the E-Verify program in certain locations as required by law. Learn more about the E-Verify program.
https://e-verify.uscis.gov/web/media/resourcesContents/E-Verify_Participation_Poster_ES.pdf
We also consider for employment qualified applicants regardless of criminal histories, consistent with legal requirements, including, if applicable, the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance. Pursuant to applicable state and municipal Fair Chance Laws and Ordinances, we will consider for employment-qualified applicants with arrest and conviction records, including, if applicable, the San Francisco Fair Chance Ordinance. For Los Angeles, CA applicants: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.
Additional Skills
(none specified)
AllSTEM Representative Contact Info
Account Executive:
Nichols
Branch Phone:
(909) 244-1777
Location:
Ontario, CA