The roleYou are where things stop being stuck.When our Senior Support Analysts cannot resolve something, it comes to you — and when you cannot resolve it, the question is no longer "who troubleshoots better," it is "what should the standard be." That is a design question for our Architect. Everything short of it is yours.You are also the person who keeps our customer environments operable and conformant to standard: correcting drift, executing the complex changes, and — importantly — holding the authority to stop something that would leave the team supporting a mess.That halt authority is real here. If you can see that a deliverable will generate six months of support pain, we want you to say so and stop it.What you will doKeeping things runningAct as the terminal operational escalation point for the Services teamTake technical command during major incidents: direct diagnosis, decide actions, keep leadership informedExecute complex change beyond established standards, safely, with rollback plannedRemediate environments back to standard and keep them thereRun post-incident reviews that actually change something — a standard, a runbook, an automationDevelop our Tier 2 analysts deliberately, not incidentallyDelivering change(roughly 40–50% of your time, with a dedicated Implementation Engineer seat planned as this work grows)Lead migrations, server and cloud transitions, and new customer onboardingsImplement our Workplace OS layers to defined standardValidate that what gets built can be operated by the team, and hand it over properlyWhat you bringExperienceFive or more years supporting and engineering Microsoft environments, with real time in a managed services or multi-customer settingA track record of owning complex problems end to end, and of executing change in production without incidentTechnical depthMicrosoft 365 in depth: Exchange Online, Teams, SharePoint, Intune, Defender, Purview fundamentalsEntra ID and Active Directory in depth — hybrid identity, authentication flows, Conditional AccessWindows Server: AD, Group Policy, DNS, DHCP, file services,



certificatesAzure infrastructure: virtual machines, networking, storage, backup, Site Recovery, governance and costSecurity in practice: MFA, Conditional Access, endpoint protection, patch and vulnerability management, Zero Trust, CIS familiarityNetworking to a genuine troubleshooting standard. Cisco Meraki and Barracuda are directly relevant.PowerShell for administration and automationBackup, continuity, and DR — designing it and proving it worksValued certifications: Microsoft endpoint and administrator paths, the SC series, AZ-104 / AZ-305 / AZ-500How you workDiagnostic rigour under pressure. Staying systematic when a customer is down and everyone is watching.Design judgement with standards deference. You know what positive looks like and you still choose the standard over your own preference. That combination is rarer than raw skill and matters more to us.Risk calibration. Blast radius, rollback, and the discipline to stop.Teaching by default. You leave the team more capable than you found it.Plain-language translation. Explaining technical reality without condescension and without false comfort.Interest in automation. You do not have to be a developer. You do have to notice repetition and want it gone.Why this role, here, nowWe are honest about our situation: this seat is currently open, and its absence is being felt. That means two things for you. The work is needed and you will see your impact immediately. And you are joining a team that has just redesigned how it operates specifically so that this role is not the impossible everything-seat it can become elsewhere — escalation and project delivery are explicitly bounded,



and a dedicated implementation seat is planned as that work grows.Where it goesThree capability bands within the tier, with compensation attached. From here: Architect, via standards and design contribution; Implementation Engineer, if delivery is your preference; or depth in seat, whichis a legitimate and well-compensated answer. You will have a development plan, technical direction from our Architect, and protected time to grow.What we offerSalary range: $80,000 – $99,000Personally tailored benefits - health, vision, dental, and paramedicalFlexibility in how, when, and where you work across a 4.5-day workweek, with a vacation policy well above standardFocus windows that protect deep, uninterrupted workBroad exposure to technology through client engagements and lab environmentsFunded lifelong learning: an immersive education platform, vendor training, and soft-skills developmentWellness support, including access to the employee wellness platform and a wellness allowanceA defined career framework with development plans, capability bands, and protected development timeAn open voice in shaping the direction of the company, with leadership that serves your best interestWork. Life. Balance.About Third OctetWe are a Canadian managed IT services provider, working since 2007 with small and mid-sized businesses — typically 25 to 150 employees — across the Greater Toronto Area and beyond. Our Workplace Suite is built on Microsoft 365, Microsoft Azure, Cisco Meraki, Barracuda, and Lenovo, and we are expanding it into Workplace OS: a deliberate operating model that layers shared visibility, governed automation, insights, and AI onto a secure, standardized foundation.We are a small team supporting a growing base of customers, which means the work is real, the ownership is genuine, and what you build actually gets used.How we screenWe use automated tools to help sort and shortlist applications. Every candidate who reaches the shortlist is reviewed by a person before any decision is made.This posting is for an existing vacancy.

📌 Senior It Engineer (Mississauga)
🏢 Third Octet
📍 Mississauga