Steven Sheehan (he/him)
Hi, I'm Steven. I'm a passionate techie who is always ready for a challenge and have worked in a variety of business environments with over 10 years of work experience.

I'm currently working for the Ministry of Public and Business Service Delivery and Procurement at the Province of Ontario as the Manager, Virtualization and Cloud Support. Here I support the Province's cloud infrastructure deployment and ensure that government services are accessible and secure. I've previously been employed by the Regional Municipality of Durham as the Supervisor of the Security, Networking and Infrastructure teams. My mission was to support the organization by working to ensure that all residents are able to access digital municipal services as they please and have peace of mind knowing their information is secure.

I have a large variety of experience with technology focusing around networking, cybersecurity, infrastructure, software development, and computing in general through my work experience as well as with my time at Ontario Tech University where I obtained my Bachelors of IT degree with Networking & Security specialization.

If you're interested in talking tech, I'd love to hear from you!

Ministry of Public and Business Service Delivery and Procurement, Toronto, Ontario
Centralized technology service delivery organization for the Government of Ontario

Manager, Virtualization and Cloud Support May 2024 to Present

  • Provide managerial support for Windows, *nix, OpenShift/PCF, and on-prem cloud services teams, supporting 20+ union and contract staff, which directly supported 5,500+ VMs on 250+ hosts
  • Lead hiring process for multiple staffing vacancies, including team leads, staff/senior level engineers, including development of interview materials
  • Work with internal application teams to ensure patching cycles are followed for complex legacy deployments with minimal impact, and ensure organizational policy compliance across server fleet
  • Lead team to reduce active vulnerability count by 50%, significantly lowered policy non-compliant VMs
  • Champion security compliance including password policy adjustment implementation activities

Regional Municipality of Durham, Whitby, Ontario
Upper-tier (county) municipal government serving ~700,000 residents in the Greater Toronto Area

Supervisor - Infrastructure, Security & Networking April 2022 to May 2024

  • Provide managerial support for multiple technical teams, supporting 20+ union and contract staff
  • Manage security, infrastructure, and network operations, including developing standard procedures and toolkits, staff skill and resource management, and assignment and prioritization of incidents
  • Act as escalation point for complex tasks and provide coaching and technical advice to ensure resolution
  • Ensure that complex enterprise projects are assigned resources, that technical tasks are determined and logged, prioritized, and completed on time, within budget and with minimal operational impact
  • Work across a diverse cast of business and technology teams using past successes, understanding of corporate procedure, and business relationships to ensure successful delivery of technology services
  • Participate in corporate incident management procedures, including response to security incidents
  • Improve overall corporate security posture including development of SIEM, EDR/XDR tooling, leading external pen testing engagements, drive zero-trust implementation for critical internal applications

Technology Specialist - Security & Networking team April 2013 to March 2022

Architecture development
  • Designed resilient campus, datacenter and edge network architecture, including firewall and IPS/IDS, WiFi, MPLS WAN integration, and secure cloud connectivity for 80+ locations achieving ~99.95% uptime
  • Deployed VPN solution for ~1,500 concurrent users, including identity and access management
  • Developed internal networking, security, and cloud product portfolio
  • Designed network architecture and implemented network security controls for operational technology environments, including water/wastewater, public transit, and traffic, to improve security posture

Operational support
  • Provided client assistance with network, security and infrastructure incidents
  • Integrated alerting, automation, and configuration management tools such as PRTG, Cisco Prime
  • Built scripts using Python and Powershell to generate relevant KPIs from tool APIs
  • Implemented tools such as Tenable Nessus and TrustedSite to satisfy vulnerability management needs

Consulting
  • Provided and implemented guidance and advice to ensure software implementations follow corporate policy, industry best practices, and relevant privacy legislation while meeting business needs
  • Influenced technology strategy and conducted presentations to diverse audiences
  • Mentored and trained teams from a variety of disciplines

City of Toronto, Toronto, Ontario
Municipal government serving ~2.8 million residents, the most populated city in Canada

Work Term StudentApril 2012 to September 2012

  • Assisted with installation, clean-up and documentation for mobile phones, including billing management with third party vendors.


Canada's Wonderland, Maple, Ontario
Canada's largest amusement park, owned by Cedar Fair

Systems Technician2009 and 2010 seasons (April to November)

  • Supported a mid-sized Windows desktop environment and point of sales systems critical to the operations of the park while providing polite and professional technical support.

Unnamed, unreleased NFT toolkit (2022) Status: In concept

  • Developed project task list and general architecture

My Crypto Wallets (2021-current) Link to Twitch Extension page
Tech Stack: HTML/CSS, Javascript, Metamask, ethers.js
  • Twitch extension to display wallets and integrate with Metamask for easy fund transfers

Wallet Watch (2021-current) Link to Portal
Tech Stack: Alchemy, Lambda, API Gateway, CloudFront, Javascript, HTML/CSS, Stripe, Streamlabs
  • Web service to generate Streamlabs alerts if a user receives funds in their Ethereum wallet, including stablecoins (ie USDC, USDT)

Internet News and Weather (2020-2022) Status: Service shutdown
Tech Stack: Go, JavaScript, HTML, CSS, bash, Linux
  • Automated Twitch stream that displays news, weather, financial and internet service information
  • Developed software to pull data from multiple web APIs and integrate it into an HTML frontend, which is then broadcast from a virtual framebuffer session on a Linux virtual server

PlayQueue (2020-2022) Status: Service shutdown
Tech Stack: Go, JavaScript, HTML/CSS, DynamoDB, Lambda, API Gateway, CloudFront, Kinesis
  • Twitch extension that allows an audience to share Twitch video clips for group viewing
  • Implemented as an AWS Lambda API with a statically hosted frontend as to ensure that service is scalable for use by many users at once, and to keep cost low when service is not in use

Tournament system (2019) Status: Pre-alpha
Tech Stack: Lambda, API Gateway, CloudFront, Cognito, Javascript, HTML/CSS, React Native
  • Team/tournament tracking system

pin2ipfs (2018)Status: Pre-alpha
Tech Stack: Solidity, Go
  • Decentralized ipfs pinning service

sebb (small ethereum bulletin board) (2016-2018) Status: Development halted
Tech Stack: Solidity, JavaScript, HTML, CSS, bash
  • Bulletin board implementation using the Ethereum blockchain for metadata hosting and Swarm (ipfs competitor)

blockthenticate (2017-2018)Status: Development halted (other reasons)
Tech Stack: Ethereum whisper, Twilio, Solidity
  • Twilio multi-factor authentication oracle for Ethereum

Game server scripting (2014-current)
Tech Stack: PHP, MySQL, bash, HTML
  • Developed server scripts/image to quickly boot up game servers for personal use
  • Developed stat tracking system for league games
University of Ontario Institute of Technology, Oshawa, Ontario - 2008 to 2012
Bachelor of Information Technology (Hons) Networking & Security specialization
  • Implemented expert-level networking concepts in state-of-the-art lab
  • Educated in network, infrastructure, and security engineering, including cryptography, OS hardening and security, cloud computing, and security policy and procedure development
  • Studied object-oriented programming practices, SOAP/RESTful API and web service application development, database architecture, and software development life cycle

(ISC)2 Member #889931

  • CCSP (Certified Cloud Security Professional), August 2022 to 2025
  • CISSP (Certified Information Systems Security Professional), May 2021 to 2024

Citrix Certified Associate, App Delivery and Security, February 2022 to 2025


TOGAF 9 Certified #135242, April 2019


Cisco Certified Network Associate, Verification #407434169629GPAI, July 2011 to 2014


ITIL v4 Foundation #GR671603163SS, December 2023