junior react js developer jobs in Ottawa

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89 junior react js developer job listings in Canada. Find daily updated positions from leading job boards.


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Stedi Full-time

    We're building a new healthcare clearinghouse. In the healthcare sector, the Health Insurance Portability and Accountability Act of 1996 (HIPAA) requires that all insurance payers exchange transactions such as claims, eligibility checks, prior authorizations, and remittances using a standardized EDI format called X12 HIPAA. A small group of legacy...


  • Ottawa, ON, Canada H2 Analytics Full-time €120,000 - €170,000 Contract

    H2 Analytics is redefining how professionals train for high-stakes environments through advanced simulation and data-driven tools. We build EASE (Exercise Architect Suite), a tool used by military, intelligence, law enforcement, and emergency response organizations to develop intelligence-focused mission-critical training exercises. About the team and...


  • Ottawa, ON, Canada Devconnectplatform Full-time

    Shape the future of insurance with PolicyMe as a Full Stack Engineer. Contribute to AI-driven applications remotely using Python, React, and AWS while gaining invaluable experience. As a Junior Software Engineer at PolicyMe, you'll join a dynamic team dedicated to transforming the insurance industry. Your expertise in Python, React, and PostgreSQL will be...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Wwshemi Full-time

    Lead Cohere APIs and SDKs with backend and full-stack engineering expertise. Work remotely or from Cohere offices across global technology hubs. As Engineering Manager, you will guide the team owning inference APIs, SDKs, and the Cohere Dashboard. You will mentor engineers, shape API capabilities, and create unified customer experiences. The role combines...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Evolvic Inc. Full-time €58,476 - €135,282 Temporary

    We are seeking Senior Fullstack Developers to build complex features and lead development efforts. This role requires extensive experience with .NET technologies and modern web frameworks, working closely with technology and business leadership to deliver innovative solutions. Key Responsibilities Build complex features and lead junior developers by...


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

    We are seeking Senior Fullstack Developers to build complex features and lead development efforts. This role requires extensive experience with .NET technologies and modern web frameworks, working closely with technology and business leadership to deliver innovative solutions.Key ResponsibilitiesBuild complex features and lead junior developers by...


  • Ottawa, Ontario, Canada Lockheed Martin Full-time

    Standard Job Description The Senior Software Engineer is a technical leader and subject matter expert who combines hands-on software development with team leadership and mentorship. In this role, the successful candidate will guide project execution while supporting the professional growth and technical development of Junior and Intermediate Software...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Rogers Full-time €73,280 - €82,440 Temporary

    Maverick Currencies is a proprietary trading firm that has been funding and developing traders since 1997.We provide capital, structured training, and ongoing mentorship — so you trade our mo... The purpose of this role is to drive profitable growth, ensuring customer retention, and strengthening relationships within assigned accounts.This role maintains...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Athennian Full-time

    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 ownership, company secretarial, governance, tax, and compliance. We're looking for a driven Senior...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Evolvic Inc. Full-time €58,476 - €135,282 Temporary

    We are seeking Senior Fullstack Developers to build complex features and lead development efforts. This role requires extensive experience with .NET technologies and modern web frameworks, working closely with technology and business leadership to deliver innovative solutions. Key Responsibilities Build complex features and lead junior developers by...


  • Ottawa, Ontario, ON, Canada Lockheed Martin Remote Full-time US$102,750 - US$134,750 Contract

    he Senior Software Engineer is a technical leader and subject matter expert who combines hands-on software development with team leadership and mentorship. In this role, the successful candidate will guide project execution while supporting the professional growth and technical development of Junior and Intermediate Software Engineers. The Senior Software...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Leap-Tools-Inc.-1 Full-time €65,000 - €115,000 Temporary

    At Leap Tools, we are building the world's most advanced solutions for the interior décor industry. With customers in 80+ countries, our clientele includes Fortune 500 companies such as Home Depot, local retailers such as Alexanian's, and everything in between. We have been recognized as one of the fastest-growing tech companies by Deloitte for multiple...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada Leap-Tools-Inc.-1 Full-time €65,000 - €115,000 Temporary

    At Leap Tools, we are building the world's most advanced solutions for the interior décor industry. With customers in 80+ countries, our clientele includes Fortune 500 companies such as Home Depot, local retailers such as Alexanian's, and everything in between. We have been recognized as one of the fastest-growing tech companies by Deloitte for multiple...


  • Ottawa, CAN, ON, Canada Lockheedmartin Remote Full-time

    ## Standard Job Description The Senior Software Engineer is a technical leader and subject matter expert who combines hands-on software development with team leadership and mentorship. In this role, the successful candidate will guide project execution while supporting the professional growth and technical development of Junior and Intermediate Software...


  • Ottawa, ON, Ottawa Census Division, ON; Ontario, Canada SRC Can Full-time €80,000 - €105,000

    The Syracuse Research Corporation (SRC) is celebrating 60 years of redefining possible. The company was originally formed to provide innovative products and seasoned analysis to solve complex Electronic Warfare (EW) challenges faced by the US Government and its Armed Forces. Since 2016, SRC has expanded operations into Australia, Canada and the UK. We do...


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

    About KinaxisAre you looking to join an innovative, market-leading company where you can truly elevate your career? At Kinaxis we are serious about culture, we are serious about technology, we are serious about customers, and we are serious about not taking ourselves too seriously. If you are looking to be part of an incredible growth story, then we might...


  • Ottawa, ON, ON, Canada Lockheed Martin Full-time

    ## **Standard Job Description** The Senior Software Engineer is a technical leader and subject matter expert who combines hands-on software development with team leadership and mentorship. In this role, the successful candidate will guide project execution while supporting the professional growth and technical development of Junior and Intermediate Software...

  • Frontend/UI Developer

    3 weeks ago


    Ottawa, Ontario, Canada Larus Technologies Full-time $80,000 - $90,000 Contract

    Full-time: 37.5 Hours per week, Monday to Friday Location: Ottawa Office (Up to 3 days per week), 70 Laurier Ave West, Suite 310, Ottawa, ON K1P 5V5 and Ottawa-based Home Office, or, remote if located outside of the National Capital Region. Reporting To: Technology Director Salary Range: $80,000-90,000 Type of Vacancy: New We are looking for a Frontend/UI...


  • Ottawa, Ontario, Canada SRC Can Full-time $80,000 - $105,000 Contract

    The Syracuse Research Corporation (SRC) is celebrating 60 years of redefining possible. The company was originally formed to provide innovative products and seasoned analysis to solve complex Electronic Warfare (EW) challenges faced by the US Government and its Armed Forces. Since 2016, SRC has expanded operations into Australia, Canada and the UK. We do...


  • Ottawa, Ontario, Canada Solace Corporation Full-time $85,000 - $105,000 Contract

    Enterprise AI is moving from pilots to production, and the constraint is no longer the model — it's the data. Agents are only as good as what they can sense, trust, and act on in the moment, and real-time, event-driven data is becoming the foundation every serious AI system runs on. Solace is the leading real-time data platform for the enterprise AI era....