Mainframe Developer

Arlington Heights, Illinois

Ascendion
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About Ascendion


Ascendion is a full-service digital engineering solutions company. We make and manage software platforms and products that power growth and deliver captivating experiences to consumers and employees. Our engineering, cloud, data, experience design, and talent solution capabilities accelerate transformation and impact for enterprise clients. Headquartered in New Jersey, our workforce of 6,000+ Ascenders delivers solutions from around the globe. Ascendion is built differently to engineer the next. Ascendion Engineering to elevate life


We have a culture built on opportunity, inclusion, and a spirit of partnership. Come, change the world with us:


  • Build the coolest tech for world's leading brands
  • Solve complex problems - and learn new skills
  • Experience the power of transforming digital engineering for Fortune 500 clients
  • Master your craft with leading training programs and hands-on experience

Experience a community of change makers.


Join a culture of high-performing innovators with endless ideas and a passion for tech. Our culture is the fabric of our company, and it is what makes us unique and diverse. The way we share ideas, learning, experiences, successes, and joy allows everyone to be their best at Ascendion.


Job Title: Mainframe production Support


Roles and Responsibilities:


  • Proven experience working with IBM Mainframe systems (z/OS, JCL, and COBOL is a plus).
  • Strong knowledge of Control-M job scheduling and automation.
  • Experience with Electronic Secure File Transfer (ESFT), including configuration, troubleshooting, and ensuring secure file exchange processes.
  • Strong troubleshooting skills and the ability to quickly resolve critical issues in high-pressure situations.
  • Familiarity with system monitoring tools and proactive issue resolution.
  • Knowledge of ITIL incidents and problem management processes.
  • Ability to work independently and as part of a team in a 24/7 shift-based environment.
  • Excellent communication skills, both written and verbal.
  • Flexibility and adaptability to handle evolving tasks in a dynamic environment.
  • Experience with automation scripting (e.g., Shell, Python, Perl).
  • Familiarity with monitoring and alerting systems (Dynatrace, Big Panda, Splunk, Nagios, or similar tools).
  • Understanding of security best practices related to file transfers and system access control.
  • Familiarity with cloud environments and integration with mainframe systems.
  • "Responsible for supporting and maintaining critical systems including IBM Mainframe, Control-M, and Electronic Secure File Transfer (ESFT) systems. As a part of this team, you will ensure the continuous availability, performance, and security of these key systems that drive our operations. This role demands a high level of technical expertise, quick troubleshooting abilities, and a strong commitment to ensuring uninterrupted system functionality.

Key Responsibilities:


  • IBM Mainframe Support: Monitor and manage the performance, availability, and health of IBM mainframe systems, including job scheduling, resource allocation, and system diagnostics.
  • Control-M Job Scheduling: Oversee the timely and efficient execution of scheduled jobs via Control-M, ensuring that batch jobs are processed smoothly and resolving any failures in real-time.
  • Electronic Secure File Transfer (ESFT) Management: Monitor and support the secure file transfer system, ensuring secure and reliable file transfers across different platforms, and troubleshooting any transfer issues promptly.
  • Incident Management: Quickly respond to system alerts and incidents, perform root cause analysis, and resolve issues to minimize downtime and system impact.
  • System Monitoring: Use system monitoring tools to proactively identify issues and maintain system performance; perform routine checks and escalate potential problems to higher levels when necessary.
  • Collaboration: Work closely with other teams (e.g., Infrastructure, Security, and Application Support) to address system issues, enhance operational processes, and improve system reliability.
  • Documentation and Reporting: Maintain accurate records of incidents, issues, resolutions, and routine maintenance tasks. Provide regular reports on system health, incidents, and any recommendations for improvements.
  • Continuous Improvement: Identify areas for automation and efficiency improvements, particularly within job scheduling and file transfer processes, and contribute to the enhancement of monitoring and troubleshooting protocols

Range: The salary for this position is between $70,000 - $80,000 annually. Factors which may affect pay within this range may include geography/market, skills, education, experience, and other qualifications of the successful candidate.


Benefits: The Company offers the following benefits for this position, subject to applicable eligibility requirements: medical insurance dental insurance vision insurance 401(k) retirement plan long-term disability insurance short-term disability insurance 5 personal days accrued each calendar year. The Paid time off benefits meet the paid sick and safe time laws that pertains to the City/ State 10-15 days of paid vacation time 6 paid holidays and 1 floating holiday per calendar year Ascendion Learning Management System

Want to change the world? Let us know.


Tell us about your experiences, education, and ambitions. Bring your knowledge, unique viewpoint, and creativity to the table. Let's talk.

Date Posted: 24 April 2025
Job Expired - Click here to search for similar jobs