senior backend engineer python aws jobs in Toronto

10,000 senior backend engineer python aws job listings in Canada. Find daily updated positions from leading job boards.


  • Toronto, Ontario, Canada Quantum Technology Recruiting Inc. (QTR) Full-time

    Position: Senior Python EngineerLocation: Downtown Toronto, Hybrid/OnsiteSalary Range: $100K-$150KJob Type: PermanentPosting Type: Open Vacancy We're partnering with a growing financial technology firm looking to add a Senior Backend Engineer to their engineering team in Toronto. This position focuses on building scalable backend systems that support...


  • toronto, canada Affid Full-time

    About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: Software Engineer Type: Contract Compensation: $40–$50/hour ...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Acquird.io Full-time

    Drive innovation as a Senior Backend Engineer with a remote-first AI-native platform team focused on marketing and creative insights. You will leverage your expertise in Node.js and TypeScript to craft robust backend systems that scale effectively. Join a fast-growing Series B company where you’ll design and maintain backend APIs that support various...


  • Toronto, ON, Toronto Census Division, ON; Ontario, Canada Perseus Group Full-time €130,000 - €170,000 Temporary

    Job Description: Senior Software Engineer (AI-First, Agentic AI) Remote Canada Compensation & Role Details Expected Salary Range: $130,000 - $170,000 CAD, depending on experience and qualifications Role Type: New Role AI Disclosure: AI is used to screen, assess, or select applicants for this role Overview We’re a software company at the start of...


  • Toronto, Ontario, Canada VBeyond Corporation Full-time

    VBeyond Corporation in Toronto, ON is seeking a Python Backend Engineer to design, develop and scale high‑performing backend systems supporting enterprise‑grade financial platforms. The role focuses on API development, platform engineering, and system design.You will build RESTful APIs, collaborate with frontend, DevOps and product teams, ensure...


  • Toronto, Ontario, Canada Movable Ink Full-time

    Movable Ink scales content personalization for marketers through data-activated content generation and AI decisioning. The world’s most innovative brands rely on Movable Ink to maximize revenue, simplify workflow and boost marketing agility. Headquartered in New York City with close to 600 employees, Movable Ink serves its global client base with...


  • Toronto, Ontario, Canada Swoop Inc. Full-time

    At Swoop, our mission is simple: Improving patient outcomes. As a market leader in AI-driven, data-powered, and privacy-compliant healthcare engagement, we connect the signals that drive earlier diagnosis, better treatment decisions, and sustained adherence.Our integrated, privacy-safe platform, enables life sciences companies to drive measurable patient and...


  • Toronto, Ontario, Canada OX Security Full-time

    OX Security is securing the AI-driven SDLC from prompt to production. We're building the next generation of security technology for a world where AI is changing how software is built, deployed, and attacked. We're looking for a strong Senior Backend Engineer to join VIBESEC, the team building our AI security products. This is one of the most exciting places...


  • Toronto, Ontario, Canada Mozilla Full-time

    Elevate your career with Mozilla as a Senior Backend Engineer on the Ecosystem Services Team. Contribute to backend systems that power Firefox and prioritize privacy and security. In this role, you'll own backend services, ensuring their reliability and health in production. Collaborate closely with frontend engineers and product managers while leveraging...


  • Toronto, Ontario, Canada Harvey Full-time

    Why HarveyAt Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how critical knowledge work gets done for decades to come.This is a rare chance to help build a generational company at a true inflection point. We have strong...


  • Toronto, Ontario, Canada BiblioCommons Full-time

    Join BiblioCommons as a Senior Backend Engineer in Toronto and lead the development of innovative library solutions. Enhance your skills while building scalable systems that serve millions each month. This position focuses on implementing resilient systems and mentoring team members, contributing significantly to the growth of the business. You will lead...


  • Toronto, ON, Canada Spotify Los Angeles Full-time €120,000 - €180,000 Contract

    Join Spotify's Platform team as a Senior Backend Engineer focused on authorization and permissions systems. Leverage your backend expertise to support Spotify's growing creator ecosystem and enhance security. As a pivotal member of the Authorization team at Spotify, you will design and operate backend services crucial for managing access across Spotify's...


  • Toronto, Ontario, Canada Affirm Full-time

    Drive impactful backend solutions as a Senior Backend Engineer with Affim in Canada. Utilize your expertise in Python or Kotlin to innovate and enhance consumer experiences. At Affim, we are constructing an advanced advertising platform and a top-tier shopping destination. As a Senior Backend Engineer, you'll set the technical strategy for your team while...


  • Toronto, Ontario, Canada Tyce Full-time

    ("Cracked engineers only": Tyce is looking for backend engineers who ship fast and own outcomes.)About UsWe're solving one of the largest problems in the physical world: public infrastructure that's too slow and too expensive to build. Construction is a $17 trillion global industry, and it runs on human expertise that doesn't scale, so we're building the AI...


  • Toronto, Ontario, Canada Autodesk Full-time

    Autodesk is seeking a Senior Software Developer to help build the Autodesk Assistant backend platform. You will design REST APIs, implement a plugin architecture for AI assistants, and deliver scalable, secure services used by millions of Autodesk users.You will collaborate with architects, product managers, developers, and DevOps to translate requirements...


  • toronto county, canada Affid Full-time

    About the job Mercor connects elite creative and technical talent with leading AI research labs. Headquartered in San Francisco, our investors include Benchmark , General Catalyst , Peter Thiel , Adam D'Angelo , Larry Summers , and Jack Dorsey . Position: Software Engineer Type: Contract Compensation: $40–$50/hour ...


  • Toronto, Ontario, Canada Portage Ventures GP Inc. Full-time

    About d1g1t d1g1t is an institutional-grade enterprise wealth management platform built for financial advisors, multi‑family offices, broker‑dealers, and bank advisor networks. The platform replaces fragmented legacy systems with a unified solution for portfolio management, advanced analytics, risk management, reporting, and operational workflows across...


  • Toronto, Ontario, Canada Swoop Full-time

    At Swoop, our mission is simple: Improving patient outcomes. As a market leader in AI-driven, data-powered, and privacy-compliant healthcare engagement, we connect the signals that drive earlier diagnosis, better treatment decisions, and sustained adherence.Our integrated, privacy-safe platform, enables life sciences companies to drive measurable patient and...


  • Toronto, Ontario, Canada Analyticsmart Consulting Inc Full-time

    Analyticsmart Consulting Inc seeks a Senior Backend Python Developer to own server-side logic, data interchange, and integration with frontend work. You will design databases, write clean Python code, and work across backend and frontend layers to ensure high performance.The role requires 10+ years in backend Python development and strong database...


  • Toronto, ON, Canada Docebo Inc. Full-time

    Become a Senior Backend Engineer at Docebo, where AI transforms workplace learning. Utilize your backend expertise to drive technical initiatives and enhance user experience through innovative system designs.In this pivotal role, you'll bring over six years of software engineering experience with a focus on backend systems. You will oversee complex projects...