winter software engineer internship jobs in Ottawa

521 winter software engineer internship job listings in Canada. Find daily updated positions from leading job boards.


  • ottawa, on, Canada Jsi Full-time $51,000

    Kickstart your career with JSI Telecom as a Software Developer Internship for Winter 2027 in a hybrid work environment. This role offers hands-on development experience with cutting-edge technologies.JSI Telecom is looking for enthusiastic Software Development interns ready to engage in challenging and impactful work. You'll collaborate with various team...


  • ottawa, on, Canada Ciena Canada ULC Full-time $47,000

    The Opportunity Work term of 4 months starting in January 2027 The team designs, implements, and maintains real-time embedded platform and application software for several of Ciena's flagship products. The work spans embedded software components and system applications, from low-level drivers to high-level software state machines that interface with external...


  • Ottawa, Canada Ciena Government Solutions Full-time $25 - $34 Permanent

    As the global leader in high-speed connectivity, Ciena builds the critical infrastructure powering the AI era. We’re a technology company shaping the future of networking, guided by innovation, integrity, and collaboration. Through development opportunities, meaningful work, and flexibility, Ciena supports growth and well-being—on and off the job....


  • ottawa, on, Canada Ciena Corporation Full-time $47,000

    ## Embedded Software Engineer – Co-op Winter 2027Apply: Ottawa: Full time: Posted Today: R As the global leader in high-speed connectivity, Ciena builds the critical infrastructure powering the AI era. We’re a technology company shaping the future of networking, guided by innovation, integrity, and collaboration. Through development...


  • ottawa, on, Canada Ciena Corporation Full-time $47,000

    Ciena Corporation in Ottawa is seeking a student for a 4-month paid co-op starting January 2027 to design, implement, and maintain real-time embedded software across drivers, kernels, and system applications for flagship products. You will work on Linux and VxWorks kernels, develop device drivers for ASICs and FPGAs, and build interfaces and SDKs to ease...

  • Co-op Winter 2027

    3 days ago


    ottawa, on, Canada General Dynamics Mission Systems, Inc Full-time $46,000

    Co-op Winter 2027 - Software Engineering - 8 Months Intern Build bold. Deliver impact. Win together. At General Dynamics Mission Systems-Canada, we’re not just engineering technology — we’re shaping the future of defence and security. Our teams design and deliver advanced, mission-critical solutions that enhance national security, strengthen...


  • Ottawa, ON, Canada Ciena Careers Full-time US$52,000 - US$70,720 Contract

    As the global leader in high-speed connectivity, Ciena builds the critical infrastructure powering the AI era. We’re a technology company shaping the future of networking, guided by innovation, integrity, and collaboration. Through development opportunities, meaningful work, and flexibility, Ciena supports growth and well-being—on and off the job....


  • Ottawa, Ontario, Canada Ciena Full-time $25 - $34 Permanent

    As the global leader in high-speed connectivity, Ciena builds the critical infrastructure powering the AI era. We’re a technology company shaping the future of networking, guided by innovation, integrity, and collaboration. Through development opportunities, meaningful work, and flexibility, Ciena supports growth and well-being—on and off the job....


  • Ottawa, ON, Canada University of Ottawa Full-time

    The University of Ottawa invites applications for a Teaching Assistant/Demonstrator/Lab Monitor (CUPE) for the Software Engineering Capstone Project Part 1 (SEG4910) in the Winter 2027 session. The role involves assisting student groups, studying and testing software, and providing guidance during group meetings in English and French.Work is in person on the...


  • Ottawa, ON, ON, Canada Ciena Full-time

    As the global leader in high-speed connectivity, Ciena builds the critical infrastructure powering the AI era. We’re a technology company shaping the future of networking, guided by innovation, integrity, and collaboration. Through development opportunities, meaningful work, and flexibility, Ciena supports growth and well-being—on and off the job....

  • Software Developer

    20 hours ago


    ottawa, on, Canada Jsi Full-time $51,000

    Software Developer - Co-op - Winter 2027 Full-Time Hybrid Locations Showing 1 location Pay or shift range: $23 CAD to $37 CAD The estimated range is the budgeted amount for this position. Final offers are based on various factors, including skill set, experience, location, qualifications and other job-related reasons. Description JSI Telecom requires that...

  • Software Engineer

    3 days ago


    Ottawa, ON, Canada Mate Gauge Full-time $55,000 - $75,000 Contract

    Term: 12-month contract designed to convert to Full TimeCandidates: Recent and New Graduates in Engineering or Software DevelopmentReports to: CEOWorkplace: Full Time OnsiteTravel: 1 5% of the time - some travel outside North AmericaTechnology: LabVIEW, Python, Go, SQLite, Claude CodeAbout Mate GaugeMate Gauge is a leader in laser-based thickness monitoring...

  • Software Engineer I

    2 days ago


    Ottawa, Ontario, Canada Planview Full-time

    Company OverviewPlanview has one mission: to close the gap between strategic intent and business outcome, providing the intelligence organizations need to act decisively.As the global leader in Strategic Portfolio Management, Planview helps organizations of all sizes achieve their business goals, faster and smarter. Our comprehensive platform bring...


  • Ottawa, Ontario, Canada Affirm Full-time

    Search has become the default way consumers discover where to shop, compare options, and decide what to buy across platforms like Google, TikTok, and even Klarna. As we build a new Ads business and evolve Marketplace into a best in class shopping experience, improving search is one of our highest leverage investments to create an experience users choose and...

  • Software Engineer II

    2 hours ago


    Ottawa, Ontario, Canada Affirm, Inc. Full-time

    At Affirm, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most.Affirm is building the next generation of customer identity and authentication. This role is a hands‑on, mid‑engineering position...


  • Ottawa, Ontario, Canada Affirm, Inc. Full-time

    Search has become the default way consumers discover where to shop, compare options, and decide what to buy across platforms like Google, TikTok, and even Klarna. As we build a new Ads business and evolve Marketplace into a best in class shopping experience, improving search is one of our highest leverage investments to create an experience users choose and...


  • Ottawa, ON, Canada Athennian Full-time

    3 weeks ago Be among the first 25 applicantsCompany OverviewAthennian increases trust in business. Our products help legal, finance, and tax teams be transaction and audit-ready by organizing business entity and corporate structure information. Over 370,000 business entities in almost every country are managed on Athennian to automate workflows for...


  • Ottawa, ON, Canada Ciena Canada Full-time $72,000 - $115,000 Contract

    Build embedded C and C++ functionality for Ciena’s 6500 system, working on real-time operating systems and network infrastructure. Contribute across development, testing, debugging, and maintenance.As a Software Engineer, you will support the full software development lifecycle for Ciena’s flagship Packet Optical Transport Portfolio. The work spans new...


  • Ottawa, ON, Canada Ciena Corporation Full-time €98,000 - €156,000 Contract

    As the global leader in high-speed connectivity, Ciena is committed to a people-first approach. Our teams enjoy a culture focused on prioritizing a flexible work environment that empowers individual growth, well-being, and belonging. We’re a technology company that leads with our humanity—driving our business priorities alongside meaningful social,...


  • ottawa, on, Canada Ciena Corporation Full-time $47,000

    Build embedded software with Ciena in Ottawa during a four-month Winter 2027 co-op, using C or C++ for real-time systems. Develop Linux and VxWorks software supporting high-speed connectivity platforms. As an Embedded Software Engineer Co-op, you will design, implement, and maintain platform and application software. Your work may span low-level drivers,...