I am Ronald Otwoma, a results-driven Microservices Engineer with 7+ years of experience designing and implementing scalable fintech solutions. I specialize in building production-grade backend systems using Java Spring Boot, Python, and modern microservices architectures, delivering secure, high-performance platforms in regulated environments. I have a strong track record in infrastructure modernization, DevSecOps, API development, and cloud-native engineering, with expertise in CI/CD automation, observability, and security. I enjoy solving complex problems, collaborating across teams, and driving continuous delivery and operational excellence.…

Ronald Otwoma

I am Ronald Otwoma, a results-driven Microservices Engineer with 7+ years of experience designing and implementing scalable fintech solutions. I specialize in building production-grade backend systems using Java Spring Boot, Python, and modern microservices architectures, delivering secure, high-performance platforms in regulated environments. I have a strong track record in infrastructure modernization, DevSecOps, API development, and cloud-native engineering, with expertise in CI/CD automation, observability, and security. I enjoy solving complex problems, collaborating across teams, and driving continuous delivery and operational excellence.…

Available to hire

I am Ronald Otwoma, a results-driven Microservices Engineer with 7+ years of experience designing and implementing scalable fintech solutions. I specialize in building production-grade backend systems using Java Spring Boot, Python, and modern microservices architectures, delivering secure, high-performance platforms in regulated environments.

I have a strong track record in infrastructure modernization, DevSecOps, API development, and cloud-native engineering, with expertise in CI/CD automation, observability, and security. I enjoy solving complex problems, collaborating across teams, and driving continuous delivery and operational excellence.

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Skills

Experience Level

Java
Expert
AWS
Expert
Docker
Expert
Kubernetes
Expert
Spring
Expert
API
Expert
Python
Expert
GraphQL
Expert
MySQL
Expert
Node.js
Expert
PostgreSQL
Expert
SQL
Expert
Elasticsearch
Expert
TypeScript
Expert
JavaScript
Intermediate
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Language

English
Advanced

Work Experience

Senior Microservices Engineer at Msimbo IT
January 1, 2017 - January 1, 2024
Led the design, development, and deployment of an enterprise-grade microservices architecture supporting financial services and digital payment platforms. Drove infrastructure modernization, cloud migration to AWS, and Kubernetes-based orchestration for 50+ services. Implemented Istio service mesh for observability, traffic management, and security; designed asynchronous processing pipelines using Apache Kafka and RabbitMQ; built RESTful and gRPC services per OpenAPI specifications; integrated ISO 20022 message standards and SWIFT for cross-border payments; implemented PCI-DSS and GDPR-compliant security and audit logging; deployed blue/green and canary deployment strategies; established CI/CD pipelines with Jenkins, GitLab CI, GitHub Actions, and ArgoCD; implemented comprehensive monitoring with Prometheus, Grafana, ELK, and OpenTelemetry.

Education

Bachelor of Science in Computer Science at Taita Taveta University
January 1, 2018 - January 1, 2024

Qualifications

AWS Certified Solutions Architect
January 11, 2030 - December 29, 2025
Certified Kubernetes Administrator (CKA)
January 11, 2030 - December 29, 2025
Oracle Certified Professional, Java SE Developer
January 11, 2030 - December 29, 2025
Microsoft Certified: Azure Developer Associate
January 11, 2030 - December 29, 2025

Industry Experience

Financial Services, Software & Internet, Professional Services
    paper Bidleo Project in GCP/API/Nextjs

    I developed bidleo using python Flask, Nextjs, Google cloud run, google pub.sub. was responsible for coordinating the team and developing the backend and front end . the project could handle high traffic of 200k+ requests per month. It was a success

    paper Meeting Suite

    Web conference website for educational and research similar to zoom and google meet