Open to opportunities

Moses Ooko

@mosesooko

Message

I build reliable Medicare claims systems across mainframe and modern backend technologies.

United States

Message

What I'm looking for

I'm looking to build reliable, scalable healthcare and enterprise systems where I can combine mainframe expertise, modern backend development, Agile delivery, and DevOps practices.

At ASK Consulting, I develop and maintain COBOL and Assembler components for Medicare Fee for Service claims processing, supporting stable operations and improving Durable Medical Equipment contract processing efficiency by 15%. I design unit tests, translate complex requirements into technical solutions, and use GitHub, Jira, and Confluence to support delivery in a regulated healthcare environment.

Previously at Cognizant and Branch, I improved claims-processing throughput, integrated legacy systems with Java components, and contributed to Java and Python backend development. I bring seven years of experience across COBOL, CICS, JCL, VSAM, Agile delivery, DevOps pipelines, testing, troubleshooting, and mentoring junior developers.

Experience

Work history, roles, and key accomplishments

Current

Senior Mainframe Developer

Current

ASK Consulting

Jul 2022 - Present (4 years 1 month)

Develop and maintain COBOL and Assembler components for Medicare Fee for Service claims processing, ensuring system stability and operational continuity. Collaborate within a SAFe Agile team to implement change requests and resolve defects, improving defect detection rates by 25%.

COBOL Assembly JCL SAFe Agile GitHub Jira Confluence Unit Testing Medicare Claims Processing

Mainframe Software Engineer

Cognizant

Dec 2019 - Jun 2022 (2 years 6 months)

Implemented enhancements and fixes in COBOL and VSAM for Medicare claims processing applications, improving data integrity and throughput. Participated in Agile SCRUM ceremonies and developed batch and online processes using JCL and CICS.

COBOL JCL CIC ISPF Agile Scrum Java Technical Documentation

Software Developer

Branch

Jun 2017 - Nov 2019 (2 years 5 months)

Contributed to backend development projects utilizing Java and Python, supporting integration with mainframe systems. Assisted in the design and implementation of scalable software components following Agile practices.