Principal / Solution / Enterprise Architect

Jaylan Cowie

I architect systems that scale and survive. I bridge operations, technology, and strategy. I turn enterprise complexity into clarity. I deliver resilient architecture that lasts.
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Selected work
worth a look.

01 Banking & Finance

Enterprise Banking Platform Modernisation

Co-led architectural design for a strategic backend banking platform replacement modernising to cloud-first auto-scaling infrastructure. Directed business case, proof-of-concept technology activities, and enterprise alignment across critical banking infrastructure.

  • Enterprise Architecture
  • Cloud-First Migration
  • Strategic Transformation
02 Aviation & Maintenance

E-Maintenance Integration & Aircraft Data Platform

Designed unified aircraft data model and RESTful API-based integration platform for aviation maintenance. Spearheaded industry data specification contribution (ATA SPEC2000) and led blockchain-based parts traceability with SITA and major aviation vendors.

  • Integration Architecture
  • Data Modeling
  • Industry Standards
03 Operations & Transport

Fleet & Operations Unified Intelligence

Architected integration platform combining IT and OT data sources into unified fleet and operations view. Designed operational REST APIs and frontline mobile apps delivering real-time data access and insights for engineering and operations teams.

  • Systems Integration
  • Mobile-First Design
  • Real-Time Data
04 Enterprise Resilience

High-Resilience Banking Operations Architecture

Led design and oversight of critical high-resilience, high-security IT and OT architecture for new bank operations and corporate sites. Architected highly survivable technology platforms supporting critical capabilities with multi-region, zero data loss resilience.

  • Resilience Design
  • Security Architecture
  • OT Integration
05 Cloud & Integration

Multi-Cloud Platform Migration

Spearheaded enterprise platform cloud migration across AWS and Azure. Developed comprehensive integration architecture modernising legacy systems and enabling business agility at scale.

  • AWS & Azure
  • Cloud Migration
  • Architecture Design
06 Governance & Automation

Enterprise Governance & Self-Service Automation

Built Microsoft Power Platform security and governance framework enabling self-service automation across the enterprise. Established IT Data Model with metrics-driven governance for performance tracking and strategic decision-making.

  • Power Platform
  • Governance
  • Automation

What I've
actually delivered.

From banking and aviation to rail and nuclear — solving critical, complex problems at scale.

Principal Solution Architect

Reserve Bank of Australia — Banking Infrastructure Transformation

Leading enterprise-aligned architectural solutions across critical banking infrastructure and operations. Driving complete backend platform modernisation with cloud-first auto-scaling, multi-region payment platform resilience, high-security OT architecture for bank operations, and enterprise governance frameworks.

  • Enterprise Architecture
  • Cloud Strategy
  • Critical Systems
  • Mentoring

Solution Architect — Aircraft Engineering IT

Cathay Pacific — Aviation Maintenance Modernisation

Owned architectural strategy during major industry disruption. Spearheaded cloud migration (AWS & Azure multi-cloud), designed Line Maintenance Transformation across 13 programs, led industry data specification (ATA SPEC2000) contribution, architected unified aircraft data platform, and delivered blockchain-based parts traceability solution with SITA.

  • Cloud Migration
  • Industry Standards
  • Data Integration
  • Digital Transformation

Enterprise Solution Architect — Operations & Corporate

Eurostar — Operations Control & Integration

Delivered cloud-first enterprise solutions with architectural leadership. Owned technical specifications for fleet maintenance and crew rostering, established architecture governance board, developed integration architecture unifying IT and OT data, and built operational APIs with frontline mobile apps for real-time team insights.

  • Systems Integration
  • Mobile Strategy
  • Governance
  • Operations Technology

Solution Architect

DXC / CXC / Xchanging — Enterprise Rationalisation

Architected enterprise technology solutions across multi-company integrations and technology rationalisation for major mergers. Led application rationalisation and cloud enablement, delivered Oracle licensing optimisation, and integrated product support services into enterprise ITSM and SAP ERP.

  • Merger Integration
  • Cloud Enablement
  • ERP Systems
  • Enterprise ITSM

Enterprise Information Architect

ANSTO — Knowledge & Content Platform

Led architectural practice enablement supporting corporate, research, and operations teams. Specified, designed, managed, and delivered enterprise EDRMS, Knowledge Management, and Web Content platforms.

  • Information Architecture
  • Enterprise Systems
  • Knowledge Management

The toolkit
behind the work.

Architecture & Strategy

  • Enterprise Architecture
  • Solution Architecture
  • Integration Architecture
  • Strategic Architecture
  • Technology Roadmapping
  • Digital Transformation

Cloud & Infrastructure

  • AWS (EC2, VPC, Lambda, API Gateway, RDS)
  • Azure (multi-cloud design)
  • Cloud Migration Strategy
  • High Availability Design
  • Multi-region Resilience

Data & Integration

  • RESTful APIs & GraphQL
  • Data Modeling
  • Systems Integration
  • ETL & Data Pipelines
  • Real-time Data Architecture
  • SQL (PL/SQL, T-SQL)

Enterprise Platforms

  • ServiceNow (Implementation, CMDB, Automation)
  • SAP ERP Integration
  • Microsoft Power Platform
  • Oracle Database (Data Guard, RMAN, Grid Control)
  • Tableau Cloud Analytics

Industry Expertise

  • Banking & Financial Services
  • Aviation & Maintenance
  • Rail & Transportation
  • Operations & Asset Management
  • Nuclear & Energy
  • Insurance & Government

Development & Frameworks

  • NodeJS & Express
  • ReactJS / Preact / NextJS
  • JavaScript & CSS
  • D3JS & VisJS
  • Java (J2EE)

Complex architecture problems
are my specialty.

Find me on LinkedIn ↗