Engineering Proof & Labs

Technical Portfolio

Demonstration architectures, migration cutover laboratories, and Infrastructure as Code modules showcasing concrete implementation patterns and design rigor.

Authenticity Standard: In accordance with our strict transparency policy, all projects below are technical laboratories, portfolio projects, or demonstration architectures. They are explicitly labeled and not presented as commercial customer case studies.

AWS ArchitectureDemonstration Architecture

Multi-AZ Resilient Web & Database Architecture

This demonstration architecture illustrates foundational AWS resilience patterns for production web applications. It separates public web routing from private compute and isolated database tiers, eliminating single points of failure while enforcing least-privilege network segmentation.

Architecture Highlights:

Dual-AZ VPC layout with public, private application, and isolated database subnets

Internet-facing Application Load Balancer with TLS termination and health check routing

Auto Scaling Group distributing stateless EC2 instances across private subnets

Amazon RDS Multi-AZ deployment with synchronous standby replica in secondary AZ

NAT Gateways in public subnets enabling secure outbound-only updates for private instances

AWS VPCApplication Load BalancerAmazon EC2 Auto ScalingAmazon RDS Multi-AZAWS IAM

Demonstrated Engineering Outcomes

Zero single points of failure across web, compute, and database tiers

Strict subnet-level isolation preventing direct internet access to databases

Automated health check failover with zero manual intervention required for compute nodes

Repository Discuss Pattern

MigrationTechnical Lab

Workload Migration & Database Cutover Lab

Conducted in an isolated laboratory environment, this project validates migration strategies for legacy Linux/Windows workloads moving to AWS. It demonstrates the use of AWS Application Migration Service (MGN) and AWS Database Migration Service (DMS) for continuous replication and planned cutover.

Architecture Highlights:

Simulated source infrastructure running multi-tier business application and SQL database

Continuous block-level data replication into AWS staging area using AWS MGN

Ongoing data replication and change data capture (CDC) using AWS DMS to target Amazon RDS

Isolated staging VPC for cutover rehearsals and non-disruptive validation testing

DNS failover strategy utilising Amazon Route 53 weighted and latency routing policies

AWS MGNAWS DMSAmazon RDSAmazon Route 53AWS Systems Manager

Demonstrated Engineering Outcomes

Documented cutover timeline minimizing operational maintenance window

Validated data consistency between source database and target Amazon RDS instance

Repeatable rollback procedure tested prior to final simulated cutover

Repository Discuss Pattern

TerraformPortfolio Project

Terraform Modular Cloud Foundation

A structured Terraform codebase built to demonstrate clean, maintainable Infrastructure as Code practices. It implements modular patterns with strict input validation, remote state locking with DynamoDB, and automated security checks (tflint and checkov).

Architecture Highlights:

Terraform root and child modules for VPC, IAM role boundaries, and audit logging

Remote state management with S3 server-side encryption (KMS) and DynamoDB state locking

Least-privilege IAM policies with strict principal and condition constraints

Centralised AWS CloudTrail logging into an immutable, versioned, vault-locked S3 bucket

Configurable environment workspaces for development, staging, and production tiers

TerraformHCLAWS KMSAmazon S3DynamoDBAWS CloudTrail

Demonstrated Engineering Outcomes

100% reproducible AWS environment provisioning via parameterized code

Zero hardcoded credentials, state secrets, or permissive default security rules

Modular structure allowing incremental adoption without monolithic refactoring

Repository Discuss Pattern

Containers / KubernetesTechnical Lab

Amazon EKS Container Platform Architecture

This technical lab demonstrates modern cloud-native deployment patterns on AWS. It showcases secure pod-level AWS API access via IRSA, native VPC IP assignment for Kubernetes pods, and declarative ingress routing integrated with AWS Application Load Balancers.

Architecture Highlights:

Managed EKS cluster with private API endpoint and dedicated bastion access

Worker node groups distributed across multiple availability zones using managed node groups

IAM Roles for Service Accounts (IRSA) eliminating node-level instance profile over-privilege

AWS VPC CNI plugin configured for efficient pod IP allocation and security group per pod

AWS Load Balancer Controller provisioning ALBs dynamically from Kubernetes Ingress manifests

Amazon EKSKubernetesAWS VPC CNIIRSAAWS IAMContainerd

Demonstrated Engineering Outcomes

Granular, pod-specific IAM access avoiding broad EC2 node instance credentials

Seamless ALB ingress integration with automated ACM TLS certificate binding

Isolated cluster architecture with private worker nodes and zero public management access

Repository Discuss Pattern

SecurityPortfolio Project

IAM Least-Privilege & Account Security Baseline

A practical security blueprint illustrating how to structure identity and access management in AWS without paralyzing administrative productivity. It eliminates long-lived access keys in favor of short-lived AWS IAM Identity Center (SSO) credentials and scoped role policies.

Architecture Highlights:

Service Control Policies (SCPs) preventing root account usage and unauthorized region activation

IAM policy templates restricting administrative access to sessions with verified MFA

Automated Lambda function detecting unrotated access keys older than 90 days

Amazon GuardDuty threat detection with automated EventBridge alert notifications

AWS Config rules continuously evaluating compliance against CIS AWS Foundations Benchmark

AWS IAMAWS OrganizationsAWS ConfigAmazon GuardDutyAWS LambdaAWS KMS

Demonstrated Engineering Outcomes

Elimination of static administrator credentials in favor of time-bounded role assumption

Automated alerting on anomalous API activity or perimeter security group changes

Demonstrated alignment with CIS AWS Foundations Benchmark baseline recommendations

Repository Discuss Pattern

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