Aviation · Integration · AI

Modernising Airline & MRO Platforms

Declan Butler – Integration Team Lead & former Engineering Manager for Ground Operations (Check-in & Day-of-Travel) at Aer Lingus. Now a Director-level engineering leader at EY focused on architecture, automation (Workato), and AI-powered agent experiences.

6 years at Aer LingusOracle-backed platformsWorkato Integration LeadAI & AgentUI
Aviation professional using tablet with holographic UI for check-in and boarding operations on airport tarmac
6+ years Airline Ops leadership (Aer Lingus)
10+ years Oracle & enterprise integration
Integration Lead – Workato at EY
AI-powered prototypes: AirNova.io, AgentUI, Scandit

Airline & Ground Operations Experience

Progressed from Integration Team Lead to Engineering Manager for Ground Operations – Check-in & Day of Travel at Aer Lingus.

Led a multi-year transformation from a legacy IBM Broker platform to Java Spring Boot microservices on AWS while keeping airport operations stable throughout the transition.

Owned day-of-travel stability for check-in and bag drop systems, ensuring seamless passenger experiences across all touchpoints.

Aer Lingus

Ground Operations Engineering

Boarding by Groups
  • •Reduced gate congestion significantly
  • •Improved on-time performance
  • •Seamless passenger flow management
Self-service Bag Drop Kiosk Integration
  • •Collaboration with airport partners
  • •Streamlined check-in process
  • •Reduced queue times
Partner Integrations
  • •SITA, Collins, VeriFly, Airware
  • •Seamless data exchange
  • •Industry-standard protocols
AgentUI
  • •React Native ground agent app
  • •Check-in, seat changes, BP repair
  • •Disruption handling workflows

Evaluating Platforms like Quantum on the Cloud

Deep expertise in reviewing Oracle-backed MRO/ERP systems hosted on Windows/RDS environments, heavily customised by clients. Providing architectural assessments that balance stability with modernisation.

01

Current-State Discovery

Environment, RDS/VM topology, Oracle version, custom code baseline.

02

Oracle & Data Model Review

Schema extensions, performance risks, upgradeability assessment.

03

Integrations & Automations

How Quantum connects to ERP, finance, inventory, portals (APIs, file, direct DB, Workato, etc.).

04

Stabilise & Modernise Roadmap

Quick wins, risk mitigation, AI & AgentUI opportunities.

Tech Stack:OracleWindows/RDSAPIsETL/WorkatoMonitoring

AI & Agent Experiences on Top of Legacy Platforms

Building AI-powered UIs and prototypes that demonstrate how intelligent agent layers can transform legacy systems without risky full replacements.

Leveraging Scandit for scanning boarding passes, IDs, and documents with enterprise-grade accuracy and speed.

"Don't replace your core system overnight – put an intelligent agent layer on top."

AirNova.io

Airline demo on modern web stack (Next.js/Vercel)

AgentUI

Production ground agent app at Aer Lingus

Scandit Flows

Scanning for documents / boarding passes

Integration, Automation & Workato at EY

Low-level Designs

Leading implementation of Workato recipes for enterprise clients

Canonical Data Models

Designing integration patterns and data transformations

Governance & Observability

Focus on error handling, monitoring, and operational excellence

Integration Architecture

Apps
Source Systems
↔
Workato
iPaaS
↔
QuantumERP / HR / Finance
Target Systems

Enterprise integration patterns connecting source applications through Workato to downstream systems including MRO, ERP, HR, and Finance platforms.

Ready to Review Your Aviation or MRO Platform?

Inviting architecture reviews of Quantum, Oracle-backed MRO systems, airline operations platforms, or exploring AI/AgentUI opportunities to modernise your legacy systems.

Open to NDA & confidential discussions