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Darrel Kelley
Mainframe Developer
Summary
Highly skilled and experienced Mainframe Developer with over 8 years of experience in developing and maintaining core banking applications in a z/OS environment. Proven expertise in migrating legacy COBOL and PL/I applications to modern programming languages on the mainframe, resulting in improved efficiency and maintainability. Implemented DevOps practices to streamline the application development and deployment process, reducing lead time and improving software quality. Managed and monitored mainframe infrastructure, including z/OS, DB2, and CICS, to ensure optimal system performance and availability. Collaborated with cross-functional teams to gather requirements, design, and implement mainframe solutions that meet business objectives. Proficient in COBOL, JCL, DB2, IMS, CICS, TSO/ISPF, JCL, DFSORT, and other mainframe tools. Proven ability to optimize mainframe applications using performance analysis tools such as ISPF and GTF, identifying performance bottlenecks and implementing solutions to improve efficiency.
Education
Computer Science
April 2017
Skills
- COBOL
- JCL
- DB2
- IMS
- CICS
- TSO/ISPF
Work Experience
Mainframe Developer
- Troubleshot and resolved complex technical issues related to mainframe applications and infrastructure, ensuring business continuity.
- Collaborated with crossfunctional teams to gather requirements, design, and implement mainframe solutions that meet business objectives.
- Designed and built highperformance data pipelines using JCL, DFSORT, and other mainframe tools to extract, transform, and load large datasets.
- Optimized mainframe applications using performance analysis tools such as ISPF and GTF, identifying performance bottlenecks and implementing solutions to improve efficiency.
Mainframe Developer
- Developed and maintained core banking applications in a z/OS environment, ensuring high availability and performance.
- Migrated legacy COBOL and PL/I applications to modern programming languages on the mainframe, resulting in improved efficiency and maintainability.
- Implemented DevOps practices to streamline the application development and deployment process, reducing lead time and improving software quality.
- Managed and monitored mainframe infrastructure, including z/OS, DB2, and CICS, to ensure optimal system performance and availability.
Accomplishments
- Led a team of developers in implementing a new billing system on the mainframe, resulting in a 30% reduction in billing errors and a 15% increase in customer satisfaction.
- Developed a new performance monitoring tool that reduced mainframe downtime by 20%.
- Designed and implemented a new security architecture for the mainframe, resulting in a 40% reduction in security breaches.
- Developed a new data warehousing solution on the mainframe, resulting in a 25% increase in data accessibility and a 10% reduction in data storage costs.
- Led a team of developers in implementing a new ERP system on the mainframe, resulting in a 20% increase in operational efficiency and a 15% reduction in operating costs.
Awards
- IBM Champion for Mainframe Excellence
- Mainframe Technical Excellence Award
- Top Performer Award for Mainframe Development
- IBM Innovation Award for Mainframe Technologies
Certificates
- IBM Certified System Administrator – Mainframe
- IBM Certified Application Developer – Mainframe
- IBM Certified Capacity Planner – Mainframe
- IBM Certified Performance Analyst – Mainframe
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How To Write Resume For Mainframe Developer
- Quantify your accomplishments whenever possible to demonstrate your impact on the business.
- Highlight your skills in modern programming languages and DevOps practices.
- Showcase your experience in optimizing mainframe applications for performance.
- Demonstrate your ability to work effectively in a team environment and collaborate with cross-functional teams.
- Include relevant certifications, such as the IBM Certified Mainframe Developer or the AWS Certified Solutions Architect – Associate
Essential Experience Highlights for a Strong Mainframe Developer Resume
- Developed and maintained core banking applications in a z/OS environment, ensuring high availability and performance.
- Migrated legacy COBOL and PL/I applications to modern programming languages on the mainframe, resulting in improved efficiency and maintainability.
- Implemented DevOps practices to streamline the application development and deployment process, reducing lead time and improving software quality.
- Managed and monitored mainframe infrastructure, including z/OS, DB2, and CICS, to ensure optimal system performance and availability.
- Troubleshot and resolved complex technical issues related to mainframe applications and infrastructure, ensuring business continuity.
- Collaborated with cross-functional teams to gather requirements, design, and implement mainframe solutions that meet business objectives.
- Designed and built high-performance data pipelines using JCL, DFSORT, and other mainframe tools to extract, transform, and load large datasets.
Frequently Asked Questions (FAQ’s) For Mainframe Developer
What are the key skills required for a Mainframe Developer?
The key skills required for a Mainframe Developer include programming languages such as COBOL, JCL, DB2, IMS, CICS, TSO/ISPF, JCL, DFSORT, and other mainframe tools. Additionally, a strong understanding of mainframe operating systems such as z/OS, and experience in DevOps practices are highly desirable.
What are the career prospects for Mainframe Developers?
Mainframe Developers are in high demand due to the critical role mainframes play in many industries. With the increasing adoption of cloud computing, there is a growing need for skilled Mainframe Developers who can bridge the gap between traditional mainframe systems and modern cloud technologies.
What is the salary range for Mainframe Developers?
The salary range for Mainframe Developers varies depending on experience, skills, and location. According to Salary.com, the average salary for a Mainframe Developer in the United States is around $100,000 per year.
What are the common challenges faced by Mainframe Developers?
Common challenges faced by Mainframe Developers include the need to work with legacy systems, the complexity of mainframe environments, and the shortage of skilled Mainframe Developers. Additionally, the transition to cloud computing can pose challenges for Mainframe Developers who need to adapt to new technologies and practices.
What are the best ways to prepare for a career as a Mainframe Developer?
The best ways to prepare for a career as a Mainframe Developer include earning a degree in computer science or a related field, gaining experience in mainframe programming languages and technologies, and obtaining relevant certifications such as the IBM Certified Mainframe Developer or the AWS Certified Solutions Architect – Associate.
What is the future of Mainframe Developers?
The future of Mainframe Developers is bright as mainframes continue to play a critical role in many industries. The increasing adoption of cloud computing and the need for skilled professionals to bridge the gap between traditional mainframe systems and modern cloud technologies will drive the demand for Mainframe Developers in the years to come.
What are the key trends in Mainframe Development?
Key trends in Mainframe Development include the adoption of DevOps practices, the use of modern programming languages such as Java and Python on the mainframe, and the integration of mainframes with cloud computing technologies. Additionally, there is a growing focus on data analytics and artificial intelligence on the mainframe.
What are the different types of Mainframe Development jobs?
Different types of Mainframe Development jobs include application development, systems programming, database administration, and performance management. Mainframe Developers can also work in various industries, such as banking, insurance, and healthcare.