senior full-stack developer jobs in markham, on

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  • Markham, ON, Canada CIeNET Technologies Full-time $90,000 - $130,000 Contract

    Location: Markham, Ontario, Canada Position: Senior Software Developer - Full Stack Web Application Development CIeNET is a mobile, automotive, telecom and enterprise software services and solutions research, engineering and development company founded in the U.S. in the year 2000. We currently have over 2,000 employees worldwide, supporting customers in...


  • Markham, ON, York Regional Municipality, ON; Ontario, Canada Resonaite Inc. Full-time

    Our client is seeking a contract based Senior Full Stack Engineer focused on building APIs and modern web applications using React, NestJS, and Azure cloud services. Duration: 6 months to start Location: Hybrid Markham (4d) Responsibilities: Design, develop, and maintain scalable APIs and microservices using NestJS and TypeScript. Build and enhance modern...

  • Full-Stack Engineer

    4 days ago


    Markham, ON, York Regional Municipality, ON; Ontario, Canada Enercare Inc. Full-time

    A major Canadian home services provider is seeking a Full Stack Engineer in Markham, ON. This role involves designing and operating cloud-native applications on Microsoft Azure. The ideal candidate will have strong skills in Full-Stack development, particularly with NestJS and Next.js, and experience with Azure services including Container Apps and...


  • Markham, ON, Canada Emergent Solutions Inc. Full-time €90,000 - €130,000 Contract

    Position Description Design and implement full-stack web applications for device management, orchestration, and remote monitoring of industrial wireless platforms. Develop secure, responsive front-ends and scalable backend APIs integrating real-time telemetry, user provisioning, and FCAPS functions. Why Join Emergent Solutions? At Emergent Solutions Inc.,...


  • Markham, ON, Canada Accommodations Plus International Full-time

    Accommodations Plus International in Markham, Ontario seeks a Senior Full Stack Team Lead to drive architecture and hands-on development across Java, frontend frameworks, and DevOps. You will mentor a team, set technical direction, and actively use AI coding assistants and agents to design, build, test, and ship robust solutions. The role combines leadership...


  • Markham, ON, Canada Accommodations Plus International Full-time €130,000 - €140,000 Contract

    Lead full stack Java development at Accommodations Plus International, combining software architecture with hands-on AI-assisted engineering every day. This senior position guides architecture, development, and DevOps for enterprise-grade applications. You will shape secure, scalable solutions while using Java, Spring Boot, REST, SOAP, AWS, and AI coding...


  • Markham, ON, York Regional Municipality, ON; Ontario, Canada 111000 Extendicare (Canada) Inc. Full-time

    Job Description Reporting to the Chief Data, Analytics & Knowledge Officer (CDAKO), the Senior Manager, Data Products will lead the build of a small, high-impact portfolio of trusted, AI-ready data products that power analytics, reporting, and agentic workflows across the enterprise. This is a product leadership role for a hands‑on, analytically strong...

  • Full stack Engineer

    6 days ago


    Markham, ON, ON, Canada QBuild Software Corp. Full-time

    **Company Background:** QBuild Corporation is a progressive software systems developer currently experiencing rapid growth. We specialize in Engineering CAD to ERP integrations for manufacturing companies. Our business partners include the biggest names in Engineering and Manufacturing, such as SOLIDWORKS, Autodesk, Siemens, Oracle, Microsoft, SAP,...


  • Markham, ON, York Regional Municipality, ON; Ontario, Canada Enercare Inc. Full-time €69,136 - €110,618 Temporary

    Senior Financial Analyst - Financial Planning and Analysis Posted Tuesday, August 11, 2026 at 4:00 AM Enercare Inc. is one of Canada’s largest home and commercial services companies servicing over one million customers across Ontario, Manitoba, Saskatchewan, Alberta, British Columbia, Quebec and New Brunswick. Enercare is the Experts at Home, operating...


  • Markham, ON, York Regional Municipality, ON; Ontario, Canada Adastra Corporation Full-time

    Overview We are looking for a Senior Rust Developer to design, build, and maintain high-performance, reliable, and scalable software applications and services. In this role, you will apply strong Rust and software engineering expertise to backend services, APIs, and distributed applications while contributing to technical design and architecture discussions....


  • Markham, ON, York Regional Municipality, ON; Ontario, Canada General Motors Full-time €111,700 - €167,600

    Vacancy Status: This posting is not for an existing vacancy within the organization and is open to new applications. (New Head Count) AI Disclosure: As part of the application process, Artificial Intelligence will be used in the hiring process for this role. Remote/Hybrid: Candidates can be considered anywhere in the country of work, but if someone is within...


  • Markham, ON, York Regional Municipality, ON; Ontario, Canada Qualcomm Full-time

    Join Qualcomm and lead the way in AI development as a Senior Engineer focused on software solutions. This role is pivotal in optimizing deep neural network implementations. Qualcomm seeks an experienced engineer to work on its AI Software team, crafting innovative software for deep learning models. You will be integrating and validating AI solutions on...


  • Markham, ON, York Regional Municipality, ON; Ontario, Canada Aarorn Technologies Inc Full-time €60 - €70 Temporary

    Guidewire Integration Lead - Senior Developer Location: Markham, ON (3x onsite a week) Employment Type: Contract Pay Rate: CAD$60 - $70/HR INC Base pay range: CA$60.00/hr - CA$70.00/hr Job Description 7+ years of IT with P&C Insurance Domain Experience and strong experience with Guidewire PC Integration. Experience with PolicyCenter end‑to‑end...


  • Markham, ON, York Regional Municipality, ON; Ontario, Canada Urbantech Full-time €160,000 Temporary

    Markham or Oakville | Hybrid | Full-Time | Permanent | Salary: $160,000 + We are looking for a proven industry leader with a passion for land development who is looking to take the next steps in their career. You will work directly with the Design Associate and manage your own team. This is a unique opportunity to join a proven organization with unlimited...


  • Markham, ON, York Regional Municipality, ON; Ontario, Canada Stantec Full-time

    Stantec seeks a Senior Project Manager in Markham to lead innovative land development initiatives. Your role will bridge project management excellence and effective team mentorship. You'll oversee highly complex projects, ensuring efficiency and accountability while engaging with clients to enhance community resilience. This position demands a blend of...


  • Markham, ON, York Regional Municipality, ON; Ontario, Canada Stantec Full-time €114,600 - €164,600 Temporary

    Strong communities don’t just happen—they’re built. They’re creatively imagined, collaboratively planned, and readied to face tomorrow with optimism. We’re driving the future of Community Development. Our experts lead their fields, collaborating on projects that are as technically challenging as they are impactful, creative, and fulfilling. We’re...


  • Markham, ON, York Regional Municipality, ON; Ontario, Canada Leadingtalent Full-time

    Shape the future of AI at IBM as a Senior AI Development Lead. Utilize advanced generative AI techniques to optimize organizational processes and boost efficiency. In this role at IBM’s AI Center of Excellence, you will mentor engineering teams and ensure high-quality execution of AI solutions. With a background in software development spanning over 7...


  • Markham, ON, Canada Encore Technical Solutions Inc. Full-time $83,000 - $124,000 Contract

    Build production applications with React, TypeScript, and NestJS as a Full-Stack Software Engineer in Markham, Ontario. This six-month contract follows a hybrid schedule with four in-office days weekly.This hands-on engineering assignment supports an enterprise client seeking deep technical expertise across the full stack. You will work independently within...

  • Full Stack Engineer

    3 days ago


    Markham, York Region, Canada Enercare Inc. Full-time $70,000 - $90,000 Contract

    Direct message the job poster from Enercare Inc. Lead Architect & AI | AI Engg. | AI Agents | LLMs | Reverse Engg. Company Description Enercare Inc. is one of Canada’s largest providers of home and commercial services, specializing in heating, cooling, plumbing, electrical, water heating, and water purification. With a strong commitment to sustainability...

  • Software Engineer

    6 days ago


    Markham, ON, York Regional Municipality, ON; Ontario, Canada Leadingtalent Full-time

    As an experienced engineer, you will tap your experience to seek out and build complex systems to help leading enterprises manage their complex data needs. You would be highly involved in the design, implementation, and operation of solutions to solve the problems as we scale up and deliver an amazing developer experience. Your role and responsibilities ...