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Senior System Developer Jobs in Ontario

314 jobs

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  • Senior C++ Developer - Low Latency Trading Systems

    TMX Group

    • Toronto, ON
    • $120,000-130,000 per year
    Venture outside the ordinary - TMX Careers The TMX group of companies includes leading global exchanges such as the Toronto Stock Exchange, Montreal Exchange, and numerous innova…
    • 2 days ago
  • Senior Systems Developer - Guidewire

    The Co-operators

    • Guelph, ON
    • $72,847-121,411 per year
    Description : Company: CGL Department: IT-Solutions Delivery P/C Employment Type: Regular Full-Time Work Model: Hybrid Language: This role operates in English. Additional In…
    • 9 days ago
  • Senior Software Developer, Embedded Systems/Firmware, XR

    Google

    • Waterloo, ON
    [For Canada Applicants] This posting is for an existing vacancy. Note: By applying to this position you will have an opportunity to share your preferred working location from the …
    • 14 days ago
  • Senior Applied AI Systems Developer / Architect

    Klick Health

    • Toronto, ON
    • $120,000-150,000 per year
    Company Description The Klick Group-comprising Klick Health (including Klick Katalyst and btwelve), Klick Media Group, Klick Applied Sciences (including Klick Labs), Klick Consul…
    • 24 days ago

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  • Senior System Analyst - Application and Integration (Developer)

    Mackenzie Health

    • Richmond Hill, ON
    • $48.94 per hour
    Job Description The Senior System Analyst (Developer) is accountable for developing, implementing, integrating, and supporting non-clinical and clinical systems. The role include…
    • 1 month ago

    View similar jobs:

    • Application Developer Integration Jobs in Richmond Hill, ON
    • Jobs in Richmond Hill, ON
  • Senior C++ Developer

    Citigroup

    • Mississauga, ON
    • $120,800-170,800 per year
    Citi's Credit Risk division is seeking a highly skilled and experienced Senior C++ Developer to join our dynamic team focused on credit model development. The successful candidate …
    • 6 hours ago
  • Senior Java Developer

    Citigroup

    • Mississauga, ON
    • $94,300-141,500 per year
    The work will be developing strategic state-of-the-art solutions using agile methodologies, micro services, and integration with many application/services. The Senior Java Develope…
    • 8 hours ago
  • Senior IT Developer (Mainframe)

    TD Bank

    • Mississauga, ON
    • $81,600-115,200 per year
    Work Location: Mississauga, Ontario, Canada Hours: 37.5 Line of Business: Technology Solutions Pay Details: $81,600 - $115,200 CAD This role is eligible for a discretionary…
    • 9 hours ago
  • Senior Embedded Software Developer — Quantum Control Firmware

    Q-Block Computing

    • Ottawa, ON
    Job Description Q-Block Computing is seeking a Senior Embedded Software Developer to join our growing team in Ottawa, Ontario. This role offers an exciting opportunity to contrib…
    • 9 hours ago
  • Senior Software Developer, Site Reliability Development

    Google

    • Waterloo, ON
    This posting is for an existing vacancy. Minimum qualifications: Bachelor’s degree in Computer Science, a related field, or equivalent practical experience. 5 years of expe…
    • 9 hours ago
  • Technology Specialist, Core Systems Developer

    Equitable Life of Canada

    • Waterloo, ON
    The Opportunity: At Equitable, we believe great things happen when we work together. We’re a Canadian mutual company driven by purpose - putting people first and helping Canadians …
    • 7 days ago
  • Senior Software Developer

    Adecco

    • Ottawa, ON
    • $125,000-180,000 per year
    Adecco is currently hiring a Senior Software Developer / Technical Specialist (Azure & Integration) for a full-time contract opportunity based in Ottawa. This hybrid role requires …
    • 3 hours ago
  • Senior Full Stack Java Developer (Azure | Angular | Banking)

    BeachHead

    • Toronto, ON
    Senior Full Stack Java Developer (Azure | Angular | Banking) Date Posted Apr 16, 2026 Location Toronto, ON Job Type Contract Job ID 19554 Are you a skilled Java developer …
    • 9 hours ago
  • Applications Developer – Senior

    BeachHead

    • Toronto, ON
    Applications Developer – Senior Date Posted Apr 16, 2026 Location Toronto, ON Job Type Contract Job ID 19545 Are you ready to leverage your expertise in a dynamic financia…
    • 9 hours ago
  • AI Developer – Rack Systems Engineering

    Advanced Micro Devices

    • Markham, ON
    Overview: WHAT YOU DO AT AMD CHANGES EVERYTHING At AMD, our mission is to build great products that accelerate next-generation computing experiences—from AI and data centers, t…
    • 9 days ago
  • AI Developer – Rack Systems Engineering

    Advanced Micro Devices

    • Markham, ON
    Job Description: WHAT YOU DO AT AMD CHANGES EVERYTHING At AMD, our mission is to build great products that accelerate next-generation computing experiences—from AI and data cen…
    • 10 days ago
  • Senior Full Stack Java Developer- Assistant Vice President

    Citigroup

    • Mississauga, ON
    • $94,300-141,500 per year
    Job Description: The Senior Full Stack Java Developer – is a senior level position responsible for establishing and implementing new or revised application systems and programs i…
    • 1 day ago
  • Senior Java Developer

    Citigroup

    • Mississauga, ON
    • $94,300-141,500 per year
    The Applications Development Senior Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised app…
    • 1 day ago
  • Senior Full Stack Developer

    Citigroup

    • Mississauga, ON
    • $120,800-170,800 per year
    About Citi Citi, the leading global bank, has approximately 200 million customer accounts and does business in more than 160 countries and jurisdictions. Citi provides consumers,…
    • 1 day ago
  • Senior Java Developer

    Citigroup

    • Mississauga, ON
    • $94,300-141,500 per year
    The Applications Development Senior Programmer Analyst is an intermediate level position responsible for participation in the establishment and implementation of new or revised app…
    • 1 day ago

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