VINCENT OMONDI OWUOR

AWS Certified Cloud Practitioner | Cloud Infrastructure & IT Support
owuorvincent069@gmail.com • +254 796 915 745 • Kakamega, Kenya • LinkedIn • GitHub • Portfolio • Credly
AWS Certified Cloud Practitioner specializing in Distributed Systems and Failure-First Architecture. Focused on designing fault-tolerant applications optimized for consistency, latency, and scalability. Building resilient systems serving 20K+ concurrent users with 99.9% uptime. Hands-on experience with AWS infrastructure and IT support.
Technical Focus Areas
Architecture: Microservices, Event-Driven, Serverless, CAP Theorem, Saga Patterns, Circuit Breakers
Cloud & DevOps: AWS (Lambda, DynamoDB, S3, CloudFront), Terraform, Vercel Edge, Docker, CI/CD
Distributed Patterns: Idempotency, Optimistic Locking, Eventual Consistency, Rate Limiting, Sharding
Languages: TypeScript, Python, SQL, HCL (Terraform), C#
Systems Thinking: Failure-First Design, Trade-off Analysis, Production-Scale Problem Solving
Key Projects
SafariSmart Kenya - AI Travel Engine | Django, Gemini AI, PostgreSQL, AWS S3
  • System Challenge: Building a fault-tolerant interface that never crashes despite upstream AI service instability.
  • Architecture: Implemented Circuit Breaker patterns to fallback to cached itineraries when error rate exceeded 15%.
  • Reliability: Built validation middleware using Zod schemas to reject and retry malformed JSON responses automatically.
  • Optimization: Reduced operational costs by 40% through hybrid architecture combining Render (Compute) and AWS S3 (Storage).
  • Result: System uptime maintained at 99.9% even during AI provider outages.
M-Pesa E-commerce Integration | Node.js, Distributed Payment APIs
  • System Challenge: Ensuring payment consistency in a distributed system with high transaction failure rates and network partitions.
  • Consistency: Designed a distributed Saga Pattern implementation for dual-write operations between Inventory and Payment Gateway.
  • Fault Tolerance: Implemented idempotent webhook handler utilizing Idempotency Keys to prevent duplicate charges during network replays.
  • Scalability: Applied optimistic currency locking to handle high-concurrency checkout events without database deadlocks.
  • Result: Achieved 100% data consistency during simulated network failures; zero double-charges recorded.
EduCore Academic Suite | ASP.NET MVC, SQL Server
  • System Challenge: Maintaining system availability and data integrity under burst load (5000+ concurrent registrations).
  • Concurrency: Solved race conditions in student enrollment by implementing ACID-compliant transaction isolation.
  • Performance: Optimized O(N) reporting queries to O(1) lookups using Materialized Views and strategic database indexing.
  • Result: Enrollment latency reduced by 60%, database CPU utilization dropped from 95% to 40% during peak load.
Terraform AWS 3-Tier Infrastructure | Terraform, AWS VPC, EC2, RDS
  • Architecture: Deployed production-ready 3-tier architecture (Presentation, Application, Data) using Terraform for repeatable IaC.
  • Availability: Configured Multi-AZ deployment for high availability and fault tolerance across partial region failures.
  • Security: Implemented enterprise-grade network security with AWS VPC, private subnets, NAT Gateways, and strictly scoped Security Groups.
Experience
Building Cloud Solutions
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ServerlessNexus (Kakamega, Remote)
Nov 2024 - Present
  • Architecting secure, scalable cloud environments for Startups and SMEs, reducing operational overhead by 40% through serverless adoption.
  • Implementing automated DevOps pipelines (CI/CD) to accelerate MVP delivery cycles and ensure consistent deployments.
  • Designing cost-effective Disaster Recovery (DR) strategies using multi-region backups and IaC automation.
  • Optimizing cloud infrastructure costs and ensuring 99.9% uptime for client applications.
Software Development Intern (Scrum Master)
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Optimum Computer Systems (Nairobi)
May 2025 - Aug 2025
  • Led architectural overhaul of "EduCore", an enterprise academic resource planning system serving 1,000+ concurrent users.
  • Enforced ACID compliance via strict transaction isolation levels in PostgreSQL, mitigating race conditions during high-concurrency enrollment bursts.
  • Optimized read-heavy dashboards using Materialized Views and database indexing strategies, reducing query time by 60%.
  • Facilitated technical trade-off discussions, shifting the team from monolithic tight coupling to modular service-oriented design.
Full Stack Development Training
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eMobilis Technology Institute
Oct 2025 - Jan 2026
  • Completed intensive training focused on Python/Django backend architecture and responsive React frontend development.
  • Built production-ready web applications implementing RESTful APIs, secure authentication, and database optimization techniques.
Network Infrastructure Training
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Masinde Muliro University
May 2024 - Aug 2024
  • Executed comprehensive network infrastructure upgrade supporting 500+ users, enhancing campus-wide connectivity.
  • Configured and deployed enterprise-grade Cisco routers & switches in compliance with IEEE networking standards.
Education
B.Sc. Information Technology
Masinde Muliro University (2022 - 2026)
AWS Cloud Practitioner Program
AWS Re/Start (Jan - May 2025)
Full Stack Development
eMobilis (Oct 2025 - Jan 2026)
Certifications
AWS Certified Cloud Practitioner (2025-2028) • Oracle Cloud Infrastructure Foundations (2025) • Oracle AI Foundations • Cisco Cybersecurity