senior backend developer jobs in Toronto

JOB SUMMARY This role is for a Software Developer IV with a focus on CAD and back-end development. The successful candidate will be responsible for building and enhancing REST APIs for backend services, integrating with internal and external APIs using JSON/XML, and implementing complex data mapping and transformation logic. This role also involves...

Elevate production scheduling systems at HelloFresh as a Senior Backend Developer. This role focuses on backend architecture using Python and FastAPI to optimize meal production workflows.The Production Scheduling Technology team is looking for a skilled backend engineer to enhance their automated planning systems. You will work with a modern tech stack,...

Make an impactful contribution as a Senior Backend Engineer at Plooto, where you'll design efficient, scalable backend solutions using .NET and Azure. Empower small businesses by enhancing their financial management systems. Plooto is dedicated to transforming payments and cash flow management for over 14,000 businesses across North America. In this role,...

Join us as a Senior Backend Developer focusing on ACBS in Toronto, Ontario. Utilize your Java and Python expertise to build and enhance financial applications. We seek an experienced Senior Java Developer with 7-10 years in backend development. The ideal candidate will have a robust background in API development, web applications, and microservices....

Lead backend development efforts at Movable Ink in New York City as a Senior Backend Developer focused on integration and service reliability. Design systems that support innovative marketing solutions. As a Senior Backend Developer, you will take a leading role in shaping backend architecture and mentoring a growing team. Collaborating closely with product...

AtElectric Mind,Engineeringis where strategy meets action. Our team helps organizations cut through complexity-aligning business ambition with technology execution to unlock real, lasting change.You’llwork alongside curious, driven people tackling high-impact challenges for everyone from scaling startups to global enterprises. Each engagement is different,...

Goodfood (TSX: FOOD) is a leading digitally native meal solutions brand in Canada, delivering fresh meals and add-ons that make it easy for customers from across Canada to enjoy delicious meals at home every day. The Goodfood team is building Canada's most loved millennial food brand, with the mission to create experiences that spark joy and help our...

The Reference Data team, part of the broader Trade Data organization within the Brokerage Platform at Robinhood, serves as the source of truth for diverse asset classes—including equities, options, crypto, event contracts, and tokenized stocksOur core systems, Quiver and Arsenal, interface with external providers such as Bloomberg, Alpaca, Kalshi, and...

- Own Shopify Plus architecture, custom applications, integrations, APIs, and webhooks. - Assess the existing platform and identify technical debt, scalability risks, performance issues, and optimization opportunities. - Develop and maintain a technical roadmap aligned with business growth and operational efficiency. - Design and manage integrations with...

Job DescriptionWhat is the opportunity?Join our innovative PayEdge Technology team at RBC, where we're revolutionizing payment solution for commercial clients. We are seeking a Senior API Developer to build the robust and scalable APIs. As a key player, you'll contribute to every stage of the software development life cycle, focusing on quality,...

About FullscriptWe're an industry-leading health technology company on a mission to help people get better. We started in 2011 with one simple idea. Make it easier for practitioners to access the products they trust so they can deliver better care.That simple idea grew into a platform that powers every part of care. Today, more than 125,000 practitioners use...

Elevate your software engineering career at d1g1t as a Senior Python Backend Developer. Engage with advanced technologies to enhance the wealth management platform in a collaborative setting. This hands-on position focuses on backend development within a complex production environment. You will take full ownership of features while working with both product...

Advance your career as a Senior Backend Developer focusing on CAD solutions, designing and enhancing REST APIs. Play a key role in ensuring system resilience through effective data handling and integrations. This Software Developer IV position requires deep expertise in backend development and API services. You will be responsible for building REST APIs,...

Become a pivotal part of Terminal as a Senior Backend Software Developer, focusing on backend solutions that drive business success and customer satisfaction. Utilize TypeScript and AWS to deliver innovative telematics solutions. As a Senior Backend Developer, you will be directly involved in elevating Terminal's platform capabilities. Your expertise will...

Shape the future of restaurant management as a Senior Software Engineer at Toast, designing backend solutions for scheduling that enhance business operations. Channel your programming skills for tangible results. Toast is looking for a Senior Software Engineer to focus on new developments within our Scheduling product in the Team Management Suite. You will...

Senior Java Backend Developer As a Senior Java Backend Developer, you will make an impact by designing, developing, and supporting scalable cloud-native applications and microservices that power critical customer-facing platforms. You will be a valued member of the Engineering team and collaborate closely with architects, product owners, DevOps engineers,...

OverviewSenior Core Java DeveloperThis is with a large IT services firm for a major Canadian bank. Candidate must have legal work status for Canada. Client Location is downtown Toronto, close to GO and TTC. Hybrid - In-Office 3 days per week. Increase to 4 days in September 2025. Perm/FT role, salary and benefits or on contract - 6 months to start at Market...

Join us in building the future of finance. Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this historic cultural and financial shift, keep reading. About the team +...

A leading tech firm in Toronto is looking for a Master-Level Back End Developer Intern. Responsibilities include implementing AWS backend solutions, optimizing design decisions, and building stakeholder relationships. Candidates should have 4-6 years of experience with Python, APIs, and AWS. The role offers a salary between $95,000 and $105,000 and promotes...

A leading technology solutions provider in Ontario is seeking a Senior Software Developer with expertise in mainframe technologies. The role requires extensive programming experience, specifically with PL/I and DB2, and offers the opportunity to work on complex system designs. The ideal candidate will have a strong background in programming, analysis, and...