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1,000+

Senior Windows Administrator Jobs in Mississauga, ON

Sort By: Relevance

$100K - $130K *

Optimize program management from inception to production, ensuring timely delivery, customer satisfaction, and compliance with quality standards. Lead cross-functional teams through effective communic...

Concord, ONIn-Person

Reposted 3 weeks ago

  •   5 - 7 years exp.  •   Manufacturing & Automotive

$78K - $122K *

Engage with cross-functional teams to ensure accurate financial reporting, compliance with IFRS, and support site finances. Contribute to technical accounting analysis and audit processes while drivin...

Toronto, ONIn-Person

4 weeks ago

  •   Less than 5 years exp.  •   Finance & Insurance

$110K - $130K *

Join a team that's redefining technology solutions for client advisor platforms. Lead architectural design for complex integrations, enhance data management practices, and foster innovation within a c...

Toronto, ONIn-Person

Reposted 2 weeks ago

  •   5 - 7 years exp.  •   Enterprise Technology

$100K - $120K *

Unlock your potential by providing technical support and optimizing enterprise applications while collaborating with teams to enhance logistics operations and mentoring junior developers in a dynamic...

Toronto, ONIn-Person

2 weeks ago

  •   Less than 5 years exp.  •   Enterprise Technology

$95K - $140K *

Join our Engineering team to oversee technical escalations, ensuring the reliability of our platform. You will collaborate cross-functionally to prevent issues, enhance processes, and elevate customer...

3 weeks ago

  •   5 - 7 years exp.  •   Information Technology

$177K - $221K *

Lead and modernize our Network Operations team by steering the transformation to a cloud-native infrastructure while ensuring 99.999% uptime and enhancing automation. Drive a culture of excellence in...

US-AnywhereRemote

1 week ago

  •   5 - 7 years exp.  •   Telecommunications & Hardware

$138K - $188K *

Innovate project management processes from inception to delivery in the Nuclear Power sector, ensuring timely execution, risk mitigation, and stakeholder engagement, while maintaining operational exce...

US-AnywhereRemote

4 days ago

  •   5 - 7 years exp.  •   Energy & Utilities

$117K - $150K *

Engage with global brand strategy, leading programs that align with business objectives, while executing campaigns and initiatives to enhance brand visibility, governance, and market positioning acros...

Toronto, ONIn-Person

Reposted 2 weeks ago

  •   8 - 10 years exp.  •   Business Services

$110K - $130K *

Architect innovative Power Platform solutions while leveraging advanced Microsoft technologies. Elevate enterprise automation and AI agent implementations, ensuring robust integration and governance p...

Toronto, ONIn-Person

4 weeks ago

  •   5 - 7 years exp.  •   Enterprise Technology

$118K - $145K *

Shape the future of cybersecurity by leading the PAM program, designing robust integrations, and implementing advanced identity access management solutions to enhance security and operational efficien...

Toronto, ONIn-Person

Reposted 1 week ago

  •   5 - 7 years exp.  •   Information Technology

$100K - $120K *

Manage end-to-end B2B enterprise sales, driving new-client acquisition and upselling existing accounts. Collaborate with senior managers to oversee the sales pipeline and bring deals to closure, ensur...

Toronto, ONIn-Person

3 weeks ago

  •   5 - 7 years exp.  •   Finance & Insurance

$130K - $165K *

Strategize the execution and delivery of engineering projects, leading a diverse team while fostering collaboration, ensuring safety, and driving innovation within the growing nuclear sector for signi...

Pickering, ONIn-Person

Reposted 2 weeks ago

  •   8 - 10 years exp.  •   Energy & Utilities

$100K - $120K *

Explore a pivotal sales role generating revenue by driving opportunities in the Mid-Market segment. Collaborate with teams, navigate complex sales cycles, and build relationships to ensure successful...

Toronto, ONIn-Person

2 weeks ago

  •   5 - 7 years exp.  •   Business Services

$110K - $130K *

Champion technical excellence as a Site Civil Section Manager. Lead a dynamic team in site development engineering, ensuring high-quality project delivery and effective team management while contribut...

Toronto, ONIn-Person

2 weeks ago

  •   8 - 10 years exp.  •   Real Estate & Construction

$90K - $110K *

Grow your career with a key role that bridges audit, risk, and technology, empowering decision-making and enhancing governance across information services. Leverage your expertise to identify risks an...

Toronto, ONIn-Person

Reposted 5 days ago

  •   Less than 5 years exp.  •   Education, Government & Non-Profit

$90K - $100K *

Join a dynamic sales team driving success in the restoration sector. Own the complete sales cycle, cultivate complex relationships, and enhance playbooks while mentoring peers. Collaborate across func...

Kitchener, ONIn-Person

4 weeks ago

  •   5 - 7 years exp.  •   Business Services

$83K - $133K *

Unlock potential by developing and maintaining advanced analytical solutions in collaboration with actuaries and analytics partners, enhancing claims reserving processes and driving operational sustai...

Toronto, ONIn-Person

1 week ago

  •   5 - 7 years exp.  •   Finance & Insurance

$83K - $133K *

Unlock potential by merging actuarial expertise with data science to develop, validate, and optimize advanced analytical solutions that enhance P&C claims reserving and operational processes in a coll...

Guelph, ONIn-Person

1 week ago

  •   5 - 7 years exp.  •   Finance & Insurance

$100K - $120K *

Deliver essential technical support for logistics technology systems, ensuring stability and timely resolution of IT incidents. Collaborate with internal and external teams to maintain and improve sys...

Toronto, ONIn-Person

2 weeks ago

  •   Less than 5 years exp.  •   Enterprise Technology

$160K - $220K *

Shape the future of Identity Security as a Staff Fullstack Engineer, architecting solutions to enhance enterprise-grade visibility and governance, preventing risks and transforming AI into business va...

Toronto, ONIn-Person

3 weeks ago

  •   Less than 5 years exp.  •   Information Technology

$124K - $145K *

Lead the charge in fostering innovation and excellence across key services. Collaborate with executive leaders to enhance financial, technological, and human resource strategies, ensuring a modern, ef...

Reposted 3 days ago

  •   8 - 10 years exp.  •   Education, Government & Non-Profit

$140K - $180K *

Join a team that's dedicated to creating innovative Salesforce applications and integrations. Collaborate with engineers and developers to deliver high-quality solutions that meet evolving business ne...

US-AnywhereRemote

Reposted 1 week ago

  •   5 - 7 years exp.  •   Enterprise Technology

$142K - $166K *

Shape the future of reinsurance management by leading contract strategy and lifecycle oversight. Collaborate with stakeholders to ensure compliance, drive efficiency, and support product innovation wh...

Toronto, ONIn-Person

Reposted 3 weeks ago

  •   5 - 7 years exp.  •   Finance & Insurance

$60K - $181K *

Champion the effective use of NetSuite by partnering with teams to enhance business processes, ensuring operational excellence through scalable configurations and seamless integrations. Drive user ado...

Waterloo, ONIn-Person

3 weeks ago

  •   Less than 5 years exp.  •   Business Services

$60K - $181K *

Drive organizational efficiency by bridging business needs with IT solutions, managing and optimizing core ERP systems to support key financial and operational processes across the enterprise...

US-AnywhereRemote

3 weeks ago

  •   Less than 5 years exp.  •   Enterprise Technology