ROTICH Collins Kipchumba

Backend and Integration Engineer

APR 2023- Present

• Developed microservices for device Financing squad to enable Customers get smart phones on loan on a daily repayment Schedule
• Integrating Jenkins Pipelines to microservices
• Deployment of microservices on UAT and production environments both on premise(Openshift) and on cloud (AWS)
• Developed backend services using the Spring Boot framework to support the functionality and integration of applications.
• Designed and implemented RESTful and gRPC APIs for seamless communication between various system components.
• Collaborated with frontend developers to define API contracts and ensure smooth integration between front-end and back-end systems.
• Implemented data persistence and retrieval using databases such as Postgre's and MongoDB.
• Integrated third-party services and APIs, including payment gateways mainly termloan AND mpesa and external data providers to enable loan management.
• Implemented caching mechanisms and optimized database queries to improve application performance.
• Conducted thorough testing and debugging of backend components to ensure functionality and reliability.
• Worked closely with cross-functional teams to gather requirements, provide technical guidance, and deliver high-quality solutions.
• Actively participated in code reviews and provided constructive feedback to ensure code quality and maintainability.

Skills: Java and Springboot Framework, REST & gRPC , Service Discovery(Netflix Eureka), Docker, Kafka Streams, AMQP Communication, Batch Processing, Schedulers, DBMS(MySQL, MongoDB), Microservice Security, Testing and debugging .

Projects: Lipa Mdogo Mdogo 2.0, Connected Farmer Platform

Platform Engineer

APR 2022- MAR 2023

• Collaborated with teams and squads to establish standardized Jenkins pipelines, ensuring efficient and consistent software delivery processes.
• Provided support to teams and squads for deployments using Flux v2, promoting streamlined and automated deployment practices.
• Orchestrated container deployments on EKS and Openshift, enabling scalable and resilient application architectures.
• Leveraged AWS and Terraform to develop reusable IoT modules, including VPC, IoT core, IoT analytics, and Quicksight, facilitating the implementation of IoT solutions.
• Implemented Grafana and Prometheus for observability and monitoring, empowering teams to proactively identify and address performance and availability issues.
• Strengthened the security of existing Jenkins pipelines by integrating Sonarqube and Veracode scans, ensuring the delivery of secure and high-quality software.
• Collaborated closely with software development and testing teams to design and develop robust solutions that met client requirements for functionality, scalability, and performance.
• Conducted thorough reviews of project specifications and designed technology solutions that consistently exceeded performance expectations.

Skills: Jenkins, Flux, AWS, IaC, Canary&Blue-Green release strategies, Sonarqube, Veracode, Grafana, Prometheus, Alert Manager, WeaveGitops

Projects: IoT reusable modules for the IoT team, Canary release strategies for Safaricom microservices to reduce downtime to 0

• Normal Passive Site Maintenance
• Active Site Maintenance
• Report defects, order for and collect spare parts needed
• Carry out repairs and give final report of all repair work
• Supervise Contractors to ensure network up-time is not interfered with during the same works.

• Delivered clerical support by handling range of routine and special requirements
• Analyzed problems, identified solutions and made decisions
• Sorted and organized files, spreadsheets and reports
• Prepared design documents, alignments, specifications, criteria details and estimates
• Assisted with engineering calculations, design drawings, preliminary cost estimates and field visits to observe construction progress
• Completed assignments across simultaneous projects while maintaining exceptional work quality
• Participated in site visits, helping to survey ongoing and planned installations and retrofits.

• Improved overall user experience through support, training, troubleshooting, improvements and communication of system changes
• Monitored network hardware operations to evaluate proper configuration
• Resolved problems, improved operations and provided exceptional service
• Increased customer satisfaction by resolving loss of signal issues
• Delivered exceptional level of service to each customer by listening to concerns and answering questions.