Summary
Overview
Work History
Education
Skills
References
Timeline
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Michael Duffy

Sydney,Australia

Summary

With over three decades of experience in the technology sector, Michael Duffy is a seasoned software engineer, technical leader, and cybersecurity specialist. His career began with a scholarship at IBM Australia, where he developed large-scale, internet-based solutions using IBM’s WebSphere Suite. During his 10-year tenure at IBM, he contributed to projects across 13 countries and led initiatives such as the establishment of the WebSphere Centre of Excellence in Sydney.

Michael’s expertise spans backend and full-stack development, cloud architecture, DevOps, and Open Source Intelligence (OSINT). He has designed and built secure, scalable platforms for government, finance, telecommunications, and cybersecurity sectors. Most recently, he has focused on building RESTful APIs and SaaS platforms using Spring Boot, PostgreSQL, React, and cloud-native technologies in Azure, AWS, and GCP environments.

Currently, Michael leads multiple initiatives, including serving as Technical Lead at the Department of Agriculture and founding DigitalFootprintCheck.com—a SaaS platform specializing in OSINT-based digital identity assessments. He holds a baseline security clearance with the Australian Federal Government and is known for delivering high-impact software in secure environments.

Overview

30
30
years of professional experience

Work History

Technical Lead

Department of Agriculture
Sydney, Australia
08.2022 - Current
  • Leading the development of Australian Agricultural Export Services.
  • Built offline-capable Progressive Web Applications (PWA) using a React/Next.js front end.
  • Utilized Azure Serverless functions, API Gateway, and Web Application Firewall for robust infrastructure.
  • Scanned and patched software vulnerabilities to ensure compliance and security.
  • Improved secure file uploading workflows and conducted performance tuning.

Founder

Digital Footprint Check
Sydney, Australia
08.2022 - Current
  • Founded and developed a SaaS platform specializing in Open Source Intelligence (OSINT).
  • Managed the full lifecycle: concept, architecture, development, compliance, and marketing.
  • Built scalable backend and user-friendly front end for www.digitalfootprintcheck.com.
  • Ensured adherence to privacy laws and data protection regulations.
  • Continuously improved the product based on user feedback and analytics.

Senior Backend Engineer

Worldstack.io
Sydney, Australia
08.2021 - 08.2022
  • Developed REST APIs using Spring Boot, PostgreSQL, and MySQL as a sole backend engineer.
  • Designed and implemented CI/CD pipelines, testing, and vulnerability scanning.
  • Deployed microservices using Azure Spring Cloud, integrating Netflix Eureka.
  • Built threat intelligence tools searching Reddit, Facebook, Twitter, and more.
  • Supported Intelligence Analysts with dark web analysis for Government clients.

Senior Full Stack Engineer

Lumiant.com.au
Sydney, Australia
08.2020 - 08.2021
  • Built a greenfield fintech platform using AWS Amplify, GraphQL, React, and Python.
  • Developed Python-based AWS Lambda functions to serve GraphQL queries.
  • Integrated Salesforce data sources for enterprise customer access.
  • Led frontend modular development using Material-UI and DynamoDB.
  • Created document generation services using Word templates for PDF distribution.

Senior Backend Engineer

eBay
Sydney, Australia
06.2019 - 08.2020
  • Worked on Gumtree's Cars vertical and global eCommerce services.
  • Developed microservices using Spring Boot and Kubernetes on Google Cloud Platform.
  • Implemented Firebase push notifications and complex event processing with Kafka.
  • Built a Node.js backend-for-frontend using GraphQL to interface multiple services.
  • Collaborated globally with teams in Europe, USA, and Asia.

Principal Application Engineer

Equifax
Sydney, Australia
09.2016 - 06.2019
  • Maintained flagship J2EE applications using JSF, Primefaces, and WebSphere.
  • Led cloud migration projects using Docker and Kubernetes (AWS/GCP).
  • Provisioned Jenkins-based DevOps pipelines for CI/CD and security scanning.
  • Designed subscription billing and event-driven services using AWS Kinesis.
  • Led architecture and integration for Equifax’s 'Your Credit and Identity' product.

Continuous Delivery Specialist

Transport NSW
Sydney, Australia
12.2014 - 12.2015
  • Technical Lead for major Trip Planner upgrade project.
  • Developed CI/CD pipelines targeting Cloud Foundry and AWS platforms.
  • Modernized legacy systems using AngularJS and Agile dashboards.
  • Led team of 4 engineers on automation and deployment best practices.

Solution Architect

NSW Land and Property
Sydney, Australia
12.2014 - 12.2015
  • Led remediation and migration of workflow systems from legacy to modern architecture.
  • Engaged with stakeholders and users to gather requirements and present solutions.
  • Produced architectural reports that shaped departmental strategies and projects.

Portal Technical Lead

AMP Digital
Sydney, Australia
10.2012 - 09.2014
  • Led frontend/backend integration for AMP’s real-time superannuation calculator.
  • Managed RESTful services and supported PL/SQL and Oracle WebSphere platforms.
  • Upgraded WebSphere infrastructure and provided production support across teams.

Solution Architect

Veda (now Equifax)
Sydney, Australia
06.2011 - 10.2012
  • Supported corporate structure visualization tools using Neo4j and Spring MVC.
  • Refactored architecture with ActiveMQ middleware and SOAP over HTTP.
  • Automated AWS test environments with Ansible and Bamboo.

Senior Solution Designer

Westpac
Sydney, Australia
12.2010 - 06.2011
  • Led stability and maintenance improvements on pSeries and zSeries platforms.
  • Future-proofed system architecture for critical customer services.

SOA Designer

GE Finance VIC
Melbourne, Australia
07.2010 - 12.2010
  • Established Web Services standards and implemented on WebSphere Process Server.
  • Led PPSR project integration using Lotus Portlet Factory and IBM DataPower.

Build & Deploy Engineer

AMP Digital
Sydney, Australia
10.2009 - 07.2010
  • Implemented CI/CD processes and centralized tooling administration.
  • Improved code quality, delivery cadence, and reduced technical debt.

Principal Consultant

GLiNTECH
Sydney, Australia
06.2008 - 10.2009
  • Specialized in IBM WebSphere and related middleware technologies.
  • Helped GLiNTECH gain Premier Partner status with IBM through successful consulting delivery.

Solution Architect

Dept Justice NSW
Sydney, Australia
05.2007 - 06.2008
  • Designed and deployed SOA solutions for multiple NSW Justice agencies.
  • Led rollout of JusticeLink and provisioned middleware to key state departments.

Solution Architect

Vodafone Africa
Johannesburg, South Africa
12.2006 - 05.2007
  • Refactored 450+ portlets and 100 EJBs to meet SLA requirements.
  • Implemented lifecycle and deployment automation for portal applications.

Consultant

IBM Software Group
Sydney, Australia
04.2004 - 12.2006
  • Delivered SOA architecture guidance across 9+ countries.
  • Provided Java development and IBM middleware leadership.

Consultant

IBM Software Asia Pacific
Sydney, Australia
09.2001 - 04.2004
  • Founded WebSphere Centre of Excellence demo centre in Sydney.
  • Delivered presales and customer engagements across Asia-Pacific, including banking sectors.

Consultant

IBM Software Group
Sydney, Australia
11.1999 - 09.2001
  • Led eCommerce development for Amway's a2k.com.au and Blackwoods B2B initiatives.
  • Worked with WebSphere Commerce Suite and Ariba middleware.

Technical Specialist

IBM Software Group
Sydney, Australia
10.1995 - 04.1999
  • Contributed to IBM’s early Java development tools and multimedia networking projects.

Education

Bachelor of Science - Computer Science

University of Western Sydney
01.1995

Skills

Web & Cloud Development: React, Nextjs 14, Spring Boot, Firebase, Ionic/Cordova

Backend & DevOps: Microservices, REST APIs, Kafka, RabbitMQ, ActiveMQ, SQL/NoSQL, GraphQL

Cloud Platforms: AWS, Azure, Google Cloud Platform, Azure DevOps, Jenkins, Bamboo

Security & Compliance: Secure software design, vulnerability scanning, WAF, patching

OSINT & Cybersecurity: Threat intelligence, dark web monitoring, breach analysis

Process & Leadership: Agile methodologies, Technical Leadership, Business Process Management

Tools & Frameworks: Serverless (AWS Lambda), Python, Apache/Nginx, Atlassian Suite

CI/CD & Monitoring: Sonarqube, automated testing, TDD, performance tuning

References

References available upon request.

Timeline

Technical Lead

Department of Agriculture
08.2022 - Current

Founder

Digital Footprint Check
08.2022 - Current

Senior Backend Engineer

Worldstack.io
08.2021 - 08.2022

Senior Full Stack Engineer

Lumiant.com.au
08.2020 - 08.2021

Senior Backend Engineer

eBay
06.2019 - 08.2020

Principal Application Engineer

Equifax
09.2016 - 06.2019

Continuous Delivery Specialist

Transport NSW
12.2014 - 12.2015

Solution Architect

NSW Land and Property
12.2014 - 12.2015

Portal Technical Lead

AMP Digital
10.2012 - 09.2014

Solution Architect

Veda (now Equifax)
06.2011 - 10.2012

Senior Solution Designer

Westpac
12.2010 - 06.2011

SOA Designer

GE Finance VIC
07.2010 - 12.2010

Build & Deploy Engineer

AMP Digital
10.2009 - 07.2010

Principal Consultant

GLiNTECH
06.2008 - 10.2009

Solution Architect

Dept Justice NSW
05.2007 - 06.2008

Solution Architect

Vodafone Africa
12.2006 - 05.2007

Consultant

IBM Software Group
04.2004 - 12.2006

Consultant

IBM Software Asia Pacific
09.2001 - 04.2004

Consultant

IBM Software Group
11.1999 - 09.2001

Technical Specialist

IBM Software Group
10.1995 - 04.1999

Bachelor of Science - Computer Science

University of Western Sydney

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