Open to opportunities

Sylvain Gagnier

@sylvaingagnier

OT and AI architect at Systemex Automation who cut HMI build times to seconds and eliminated production connection drops.

Canada

Message

What I'm looking for

I’m focused on using AI to make software organizations faster and more reliable, through AI-assisted development workflows, AI agents in operations and support, and privacy-first AI for sensitive industrial data.

At Systemex Automation, I lead architecture and development for EZHub, the company’s MES/SCADA platform running at industrial client sites. I also helped lay the AI foundation for SA Planner and introduced AI-assisted development workflows for the team.

I launched a human-in-the-loop AI pipeline to triage field errors and a read-only diagnostic assistant in Microsoft Teams, routing sensitive client data to local LLMs. I also consolidated plant-floor gateways into Node-RED and built delivery and operations infrastructure for client sites.

For a chemical packaging client, I delivered MES Phase 1 with four production lines integrated to the client’s ERP. After tracing production connection drops to a PLC session timer, I eliminated the drops; I also cut HMI build time from 5–8 minutes to about 10 seconds per client variant.

At Hearst Newspapers, I spearheaded bid optimization that generated over $6M in revenue in two years and built ad delivery systems serving more than 50 sites. Earlier, I led engineering, platform, and project work across ad technology, industrial systems, and software delivery; I’ve also founded and run L3G3 Media.

Experience

Work history, roles, and key accomplishments

Current

OT & AI Subject-Matter Expert

Current

Systemex Automation

Jan 2025 - Present (1 year 9 months)

Lead architecture and development of EZHub MES/SCADA platform, using AI to build project process software and a human-in-the-loop AI pipeline for field errors. Mentor a team of 2 developers and set engineering standards.

React NestJS Express PostgreSQL MQTT Node RED Microsoft Graph AI Agents Claude N8n Ethernet IP OPC UA Siemens S7 CoDeSys GitHub Actions Grafana Prometheus Loki Netbird WireGuard

Senior Ad Technology Engineer

Hearst Newspapers

May 2016 - Dec 2024 (8 years 7 months)

Spearheaded bid optimization generating over $6M in revenue, built multi-platform ad delivery systems, and led API automation cutting manual ad operations by 90%. Founded and ran consulting company L3G3 Media through which this work was delivered.

Google Ad Manager Prebid Amazon A9 Algorithm Prebid.Js VAST AWS Azure C#JavaScript API Automation Memory Optimization

Director, Platform Solutions, Reporting & Programmatic

TC Media

Sep 2014 - May 2016 (1 year 8 months)

Led migration to Google DFP and GPT, rolled out header bidding across 300+ sites, and automated ETL and reporting through Salesforce APIs.

Google DFP GPT Header Bidding AppNexus Amazon TAM APS Real Time Bidding Salesforce API ETL Reporting

Senior Business Analyst

Yellow Pages Group (Mediative)

Jan 2013 - Dec 2014 (1 year 11 months)

Automated data collection from 7 advertising APIs and ran a distributed Tableau Server environment.

API Automation Tableau Data Collection

Production & Special Projects Manager

Virtual Paper

Jan 2012 - Dec 2013 (1 year 11 months)

Led the La Semaine e-commerce site and a transactional iOS/Android app.

Ecommerce iOS Android Project Management

Project Manager

Ministère de la Justice du Québec

Jan 2012 - Dec 2012 (11 months)

Led a $5M+ security and compliance portfolio with a team of 40, achieving PCI-DSS compliance and ISO 27001 certification.

Project Management PCI DSS ISO 27001 Security Compliance

Manager

DTI Software

Jan 2009 - Dec 2011 (2 years 11 months)

Led 6 developers and delivered 17 in-flight entertainment projects using PMI and Agile/Scrum.

Leadership Agile Scrum PMI Project Management

Director

Gexel Telecom / IP5 Corporation

Jan 2006 - Dec 2009 (3 years 11 months)

Managed 22 people across development, operations, QA and IT, directed a $2M R&D project that raised performance by 400% and cut hardware costs by 80%, and relocated call centers with no service disruption.

Leadership R&D Performance Optimization Cost Reduction Operations Management

Principal Consultant

Equisoft

Jan 2004 - Dec 2006 (2 years 11 months)

Re-architected the core product; form-hesitation detection lifted completion rates by 90%.

Architecture Product Development Form Optimization

Associate Director, Online Applications; Technology Manager

Bell Canada / Sympatico.ca

Jan 1999 - Dec 2004 (5 years 11 months)

Architected a live TV-show web app for 3,000 simultaneous players, played key role in Sympatico–MSN portal merger, and prepared and approved department budgets.

Web Infrastructure Integration Portal Budget Management