Cloud platform & security engineering

Engineering
platforms that
scale securely.

I'm Stephen Alabi, a UK-based Senior Cloud Platform Engineer working at the intersection of cloud architecture, infrastructure automation, DevSecOps and security engineering. I help teams build reusable platforms, deliver with confidence and operate with visibility.

◉ Based in the United Kingdom◇ AWS · Terraform · Security · Automation
PLATFORM / ARCHITECTURE● DESIGN → DELIVERY
Engineering teamsSource & workflows
→
Reusable platformTerraform · modules
↓   secure delivery pipeline   ↓
Security gatesSAST · IaC · secrets
→
Cloud runtimeAWS · observability
PLATFORMterraform plan ✓
SECURITYcontrols as code ✓
Impact at a glance

Outcomes over tool lists.

Selected contributions from enterprise platform and security engineering work.

£430kReported savings from CloudTrail consolidation
~£20k/yearEstimated EC2 lifecycle automation savings
Cross-teamReusable Terraform automation and security patterns
Selected work / 01—06

Featured engineering work.

Real-world initiatives spanning platform modernisation, cloud security and developer enablement. Details are sanitised to protect employer information.

/ 01Platform Architecture

Terraform module architecture & versioning

Co-designed an enterprise infrastructure modularisation and release strategy, moving teams away from direct dependence on a monolithic repository.

TerraformJfrog ArtifactoryModule versioning
Explore case study ↗
/ 02Observability

Automating the migration from ELK to Dynatrace

Built reusable Terraform templates and configuration patterns supporting a company-wide observability platform transition.

DynatraceTerraformObservability
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/ 03DevSecOps

Dev Gate & Sec Gate: security at developer speed

Contributed to a shared containerised security toolchain that runs locally and in GitHub Actions pull-request workflows.

GitHub ActionsCheckovGitleaks
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/ 04Cloud Security

Centralising AWS CloudTrail logs in Microsoft Sentinel

Helped design a cloud-security telemetry pipeline that uses Amazon SQS to decouple log delivery from ingestion.

CloudTrailAmazon SQSMicrosoft Sentinel
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/ 05FinOps & Governance

CloudTrail consolidation with £430k savings

Consolidated CloudTrail architecture to remove redundant local trails and streamline central logging, with reported £430k savings.

AWS CloudTrailGovernanceCost optimisation
Explore case study ↗
/ 06Cloud Automation

Automated EC2 lifecycle governance

Built tag-aware Lambda automation for temporary development/test instances, with estimated annual savings around £20k.

AWS LambdaEC2Python
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About / Approach

From architectural decisions to running code.

My work connects long-term engineering design with practical delivery: breaking down shared dependencies, making Terraform modules reusable, enabling developers with repeatable security checks and designing cloud-native monitoring pipelines.

I enjoy the hard problems that sit between infrastructure, reliability and security—and solutions that other teams can actually use.

Cloud & infrastructure

AWS Organizations, IAM, networking, CloudTrail, EC2, Lambda, S3 and platform architecture.

Infrastructure as Code

Terraform, reusable modules, versioning, JFrog Artifactory and automation with Python.

Secure delivery

GitHub Actions, Buildkite, Checkov, Gitleaks, TFLint, security gates and container tooling.

Telemetry & operations

Dynatrace, CloudWatch, Microsoft Sentinel, SQS, operational visibility and incident support.

Experience / CV

Two areas. One engineering foundation.

Choose the CV that best matches the role you're hiring for.

01 / Platform

Senior Cloud Platform Engineer

Architecture, Terraform, versioned modules, automation, observability and delivery at enterprise scale.

View platform CV ↓
02 / Security

Cloud Security / DevSecOps Engineer

Secure SDLC, shift-left tooling, AWS governance, detection and centralised cloud telemetry.

View security CV ↓
Let's connect

Building something complex?

I'm open to conversations about Senior Platform Engineering, Cloud Security and DevSecOps opportunities.

Email Stephen ↗