PLT-01Control plane
AWS multi-account platform
A secure, governable and developer-friendly AWS foundation using CDK and TypeScript to encode reusable infrastructure, guardrails, networking and operational standards.
MARK GIBAUD / REF MG-PLATFORM-2026
Principal
Platform
Engineer
AWS SERVERLESS / AI PLATFORMS / ENGINEERING LEADERSHIP
DESIGNING SYSTEMS FOR TEAMS AT SCALE
MARK@APPIFIEDUK.COM51.5074 N / 0.1278 W
Developer experienceINTERFACE / 100 USERS
Platform control planeCDK / IAM / OBSERVABILITY
AWS serverlessEVENT-DRIVEN / MULTI-ACCOUNT
ARCHITECTURE REFERENCE / NOT TO SCALE
CONTEXT LAYER
Hands-on principal platform engineer and engineering manager with 20+ years building secure, dependable systems—and the engineering environments that let teams move faster.
I connect platform architecture to developer experience, delivery, operational resilience, security and governance. My current focus spans AWS CDK and TypeScript, multi-account foundations, cloud migrations, incident management, FinOps and enterprise AI enablement.
PLATFORM TECH LEAD / REMOTE
Principal Platform Engineer / Engineering Manager
Theodo UK · Contract
JUN 2025 — PRESENT
- 01
Lead a blended team of five permanent engineers and consultants while retaining hands-on ownership of architecture and implementation.
- 02
Shape a multi-account AWS platform provisioned through reusable AWS CDK and TypeScript patterns, spanning networking, security, observability and developer enablement.
- 03
Lead multiple Azure-to-AWS migrations, replatforming workloads onto serverless infrastructure and coordinating readiness, cutover and operational handover.
- 04
Up-levelled incident management through clearer ownership, coordination, communication, review and follow-through.
- 05
Designed and wrote a custom AI gateway into Amazon Bedrock and its operational dashboard; helped lead adoption of an agentic SDLC across 100 developers.
- 06
Lead security implementation across AWS, SonarQube, Datadog and GitHub, connecting cloud controls, code quality, delivery workflows and operational telemetry.
DELIVERY MODULES
Platform work that changes how teams build.
SECURE / REPEATABLE / OPERABLE
MIG-02Modernisation
Azure to AWS migrations
Multiple migrations onto serverless AWS infrastructure, coordinating application dependencies, platform readiness, security, observability, cutover and support.
AIG-03AI enablement
Enterprise AI gateway
A custom gateway and dashboard providing governed access to Amazon Bedrock and supporting rollout of agentic software-development practices across 100 developers.
OPS-04Reliability
Operational maturity
Stronger incident management and integrated security implementation spanning AWS, SonarQube, Datadog and GitHub.
CAPABILITY INDEX
Platform engineering, from foundations to adoption.
01AWS platform engineering
02AWS CDK + TypeScript
03Serverless architecture
04Multi-account governance
05Azure to AWS migrations
06Cloud networking
07Incident management
08Security + observability
09Amazon Bedrock + AI platforms
10FinOps + cost optimisation
11Engineering management
12Vendor + stakeholder leadership
DEPLOYMENT HISTORY
Leadership grounded in product engineering.
DEP-01
Feb 2016 — Present
Freelance Web, App & AWS Developer / Fractional CTO
Appified Ltd
AWS serverless backends and product engineering using TypeScript, Node.js, Lambda, DynamoDB, AppSync, API Gateway, SQS and EventBridge.
DEP-02
Feb 2023 — Mar 2025
Tech Lead — Core Services / Technology Consultant
Novata
Architecture and hands-on delivery across core services, including comprehensive role-based access control.
DEP-03
Aug 2020 — Jan 2025
CTO / Fractional CTO
vTail
Owned technology for a healthcare communications startup that raised more than $5m, scaling technology to eight people and delivering a feature-rich mobile product on serverless AWS.
DEP-04
Aug 2018 — Oct 2020
React Native Developer (Contract)
NatWest Group / Bó
Mobile engineering for a new digital bank within a regulated financial-services environment.
DEP-05
Jan 2013 — Feb 2018
Lead Developer — Mobile & API Platforms
JustGiving
Established the mobile-platform capability from discovery through team formation and launch; led iOS, Android and API delivery.
EARLIER / React Native App Developer, HomeMade Digital · Team Lead, E-Commerce and .NET Developer, The Travel Corporation
CERTIFICATIONS
7x AWS Certified
Security — Specialty · Solutions Architect — Professional · DevOps Engineer — Professional · Solutions Architect — Associate · Developer — Associate · SysOps Administrator — Associate · Cloud Practitioner
EDUCATION
MSc Management
Birkbeck, University of London · 2010–2011 · 2:1
BSc Information Technology
Nelson Mandela University · 2000–2003