John Olamide Alokan Contact

Infrastructure that holds up in production.

Cloud engineer and backend developer. I design and build cloud infrastructure, backend systems and AI-integrated platforms for organizations that need production-grade reliability at scale, from Tier-1 banking to digital health and applied AI.

Portrait of John Olamide Alokan
John Olamide AlokanCloud Engineer & Backend Developer AWS Certified ×3

Trace a layer through the work.

Most of the systems I build share this shape. Select a layer to see which projects I built it in.

control plane · devops account region · production · multi-AZ provisions deploys encrypts CLIENTSMobile & web EDGECloudFront · WAF APIAPI Gateway · ALB COMPUTEECS Fargate · EC2 DATAAurora · pgvector FRONTENDReact · Next.js APPLIED AIAmazon Bedrock PAYMENTSISO 8583 · NIBSS IACTerraform CI/CDPipelines as code SECURITYCognito · KMS
Select a layer to trace it through the work.

Seven systems, from banking platforms to AI tools.

Select a project to inspect its scope, stack and the architecture behind it.

BankingCloud Engineer · Infrastructure Creation

Enterprise Banking Infrastructure

Built the AWS cloud infrastructure powering the digital banking platform of a Tier-1 commercial bank: a multi-account, multi-environment architecture supporting millions of banking customers across mobile and web.

4AWS accounts
9Terraform modules
50+pipelines as code

Highlights

  • Designed and provisioned infrastructure across 4 AWS accounts (devops, dev, pilot, prod) using 9 independently deployable Terraform modules
  • Built the networking foundation: VPC design, Transit Gateway network hub, VPC endpoints, WAF (SQL injection/XSS protection) and CloudFront CDN
  • Provisioned compute across ECS Fargate (e-token, facial verification, FX, loans) and EC2 Auto Scaling Groups (main app, onboarding, transfers, payments)
  • Implemented identity and security: Cognito identity pools, Azure AD SAML federation, KMS encryption, VPC flow logs and SIEM (QRadar) integration
  • Delivered a CI/CD pipeline factory managing 50+ CodePipeline pipelines as Terraform-managed infrastructure, with Slack notifications and approval gates for production

Stack

  • ECS Fargate
  • EC2
  • API Gateway
  • Lambda
  • Cognito
  • WAF
  • CloudFront
  • Transit Gateway
  • Redshift
  • OpenSearch
  • Terraform
  • CodePipeline
Enterprise Banking Infrastructure: multi-account AWS architecture
Multi-account AWS architectureOpen full size

The full lifecycle, from VPC to vector search.

Architecting AWS environments, provisioning infrastructure as code, building microservices, integrating LLMs, and shipping the pipelines that deploy them.

Cloud Infrastructure & Architecture
  • Multi-account AWS
  • VPC & networking
  • ECS Fargate
  • EC2 Auto Scaling
  • API Gateway
  • Lambda
  • Cognito
  • WAF
  • CloudFront
  • Transit Gateway
Infrastructure as Code
  • Terraform (modular, multi-environment)
  • CloudFormation
DevOps & CI/CD
  • AWS CodePipeline
  • GitHub Actions
  • Docker
  • Containerized pipelines
  • Zero-downtime deployment
Backend Engineering
  • Python (FastAPI)
  • Java (Spring Boot)
  • Microservices
  • PostgreSQL / MySQL
  • Redis
  • Kafka
Applied AI & LLM Engineering
  • Amazon Bedrock (Claude, Nova Pro)
  • RAG with pgvector
  • Bedrock Guardrails
  • Agentic workflows (AWS Strands)
  • Google Gemini
Fintech & Payments
  • ISO 8583 (jPOS)
  • NIBSS NPS/HAWK compliance
  • Multi-provider payment routing
  • Multi-currency checkout
Frontend Development
  • React
  • TypeScript
  • Next.js
  • Accessibility-first design systems

Roles I'm equipped for, and the work that backs them.

Read it like a route table: each role resolves to the projects that prove it.

RoleResolves to
Cloud Infrastructure Engineer

Enterprise Banking Infrastructure (multi-account AWS), FamileCare, Government Property Platform

DevOps Engineer

Fintech Payment Platform (cloud server provisioning & deployment), CI/CD pipeline design across 4+ projects

Backend Engineer (Python)

FamileCare, Government Property Platform, AI Media Helper: FastAPI microservices at scale

AI/ML Integration Engineer

AI Media Helper (RAG, agentic AI), FamileCare (Bedrock + Guardrails for healthcare)

Full-Stack Engineer

Flamestar Capital, Interview Question Generator, Fintech Payment Platform checkout widget

Fintech/Payments Engineer

Fintech Payment Platform (ISO 8583, NIBSS compliance), Enterprise Banking Infrastructure

Three AWS certifications, each verifiable.

Associate level across architecture, cloud operations and machine learning.

Have a system that needs to hold up in production?

Let's talk about cloud, DevOps, backend or AI-integration work.

Email John