Jecinta Onyinyechi Umeohana

Architected and deployed a fault-tolerant 2-tier AWS infrastructure with Terraform, provisioning 20+ resources across a multi-AZ VPC with public/private subnets, dual Application Load Balancers, and Auto Scaling Groups (2-4 instances, 99.9% availability). Enforced least-privilege security groups chained tier-to-tier and automated EC2 bootstrapping via Bash userdata, cutting deployment time by 75%.

Deployed a React (Vite), Django REST Framework, and PostgreSQL app to AWS EC2 using Docker Compose behind Nginx, with GitHub Actions CI/CD (Docker Hub build-once delivery) and automated health checks with rollback. Extended to Kubernetes on a self-managed k3s cluster with persistent storage, Secrets, Traefik ingress, and Cloudflare Origin SSL.

Built an event-driven, cross-region S3 replication pipeline as a disaster-recovery pattern: uploading a file to a source bucket automatically triggers a Lambda function that copies it into a second bucket in a different AWS region. Provisioned every component as code with Terraform across aliased provider regions with scoped IAM roles.

Built and deployed a production-style, three-service AI application (React, FastAPI, PostgreSQL) using AWS Bedrock (Claude) to analyse application logs and return diagnoses. Provisioned as code with Terraform (VPC, EKS, RDS, ECR, IAM/IRSA), automated via Helm charts and ArgoCD GitOps sync, and monitored with Prometheus/Grafana.

Engineered a CI/CD pipeline delivering this portfolio to Cloudflare Workers. Implemented automated HTML validation (html5validator) build gates, Wrangler IaC route scoping (wrangler.jsonc), least-privilege API token secrets, and DNS record cleanup.

Built an Ansible playbook provisioning a containerless Ubuntu EC2 instance for a Django app. Configured pinned dependencies inside a Python virtual environment, set up systemd Gunicorn services bound to localhost, and configured Nginx as a reverse proxy for zero-downtime reloads.