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Kipchirchir Karen

@kipchirchirkaren

Integration Consultant at ENVISION GLOBAL LIMITED building secure Java microservices and APIs for high-volume fintech transactions.

Kenya

Message

At ENVISION GLOBAL LIMITED, I design, develop, and maintain secure Java and Spring Boot integration services for high-volume fintech transactions. I also build reusable APIs that connect financial technologies with external enterprise platforms.

At KCB GROUP, I developed backend microservices and REST/SOAP APIs across regional subsidiaries, maintaining 99.99% system uptime. I also helped redesign legacy middleware into event-driven architectures and improved release cycles through unit testing and CI/CD automation.

As a Graduate Software Engineer at KCB GROUP, I designed and deployed microservices and managed third-party integrations. Earlier, as a Technical Support Intern at ZETTATEL COMMUNICATIONS, I developed REST APIs and tested integration flows for partner platforms.

Experience

Work history, roles, and key accomplishments

Current

Integration Consultant

Current

Envision Global Limited

May 2026 - Present (5 months)

Design, develop, and maintain high-performance backend integration services using Java and Spring Boot microservices for high-volume Fintech transaction processing. Engineer reusable APIs and maintain rigorous API security standards including OAuth 2.0 and SSL/TLS.

Java Spring Boot Microservices API Development System Design OAuth SSL TLS CI CD OpenShift AWS Root Cause Analysis Performance Optimization

Application Developer

KCB Group

Mar 2023 - May 2026 (3 years 2 months)

Developed scalable backend microservices and SQL-driven REST/SOAP APIs across 5+ regional subsidiaries, maintaining 99.99% system uptime for banking platforms. Redesigned legacy middleware into event-driven architectures, enhancing platform stability and System Design efficiency from 85% to 95%.

Java Spring Boot Microservices SQL REST SOAP Unit Testing CI CD Event Driven Architecture System Design Agile

Graduate Software Engineer

KCB Group

Feb 2022 - Mar 2023 (1 year 1 month)

Designed and deployed over 100 microservices within high-volume domains, applying core Software Engineering principles to scale financial software infrastructure. Managed 50+ third-party integrations using Version Control and API Gateway tools, reducing integration errors by 40% through standardized protocols.

Microservices Software Engineering Version Control API Gateway Root Cause Analysis Performance Optimization System Design

Technical Support Intern

Zettatel Communications

Dec 2021 - Feb 2022 (2 months)

Developed client-facing REST APIs using Java, Python, and PHP to support partner platform integrations and Software Engineering initiatives. Executed thorough API testing and payload debugging to facilitate partner onboarding and resolve technical incidents related to integration flow.

Java Python PHP REST APIs API Testing Debugging Integration