senior backend software engineer python jobs in Toronto

Our Data Intelligence team builds backend services that turn data from our SaaS platform into high-value, actionable insights for our customers. We’re transforming the way data is used at Achievers, delivering high-impact, intelligent services that redefine how work gets done. Our tech stack leverages microservices built with Python and Go, running on GCP...

What if you could build software that didn’t just scale, but transformed entire organizations?At Tactable, this is what drives us. We’re building a world-class cloud, data, and API engineering firm with a mission to power the most influential tech of tomorrow, through expert-led delivery, strong partnerships, and a relentless focus on quality.Founded by...

Senior Software Engineer — Content Tools Content Tools CoCounsel Legal Integrations Overview of the Role The CoCounsel Legal Integrations team within Thomson Reuters is seeking Senior Software Engineers to join the Content Tools team in building purpose-built APIs that give AI agents precise, governed access to TR’s proprietary legal content across...

We’re working with a group of well-funded, fast-scaling hardware and AI companies building next-generation compute platforms - from AI accelerators to advanced silicon and compiler stacks in the heart of Toronto. We’re looking for Senior to Staff-level Compiler Engineers to join teams tackling problems at the intersection of software, hardware, and...

Elevate your career as a Senior Backend Engineer at DoorDash, focusing on product-driven tech solutions in a hybrid work model. Join a team dedicated to innovative architecture and systems. We are seeking a Senior Backend Engineer to enhance our product and infrastructure. In this hybrid role, you'll manage backend services, mentor peers, and participate in...

About CircleCI Engineering CI/CD has been solved. Now it’s being reinvented. AI agents don’t just run pipelines. They write code, trigger builds, interpret failures, and propose fixes. The interfaces that developers use to understand and trust that work don’t exist yet. We’re building them. At CircleCI, our guiding principles aren’t posters on a...

Qualifications5+ years as Software Developer with proven project track record.Strong knowledge of PHP 8, Laravel 9+, MySQL, React.js 18.2 (or any other frontend framework).Strong knowledge of Golang, Gin - or any other Golang Framework.Experience with HTML/CSS/JS, RESTful APIs, Git.Docker/Kubernetes, AWS (or similar cloud).Solid database design and...

At Broadridge, we've built a culture where the highest goal is to empower others to accomplish more. If you're passionate about developing your career, while helping others along the way, come join the Broadridge team.We're looking for an experienced and adaptable Software Engineer to join our Securities Finance and Collateral Management (SFCM) engineering...

Architect Web3 backend systems with Robinhood in Toronto, using Go or Python to support scalable crypto infrastructure and wallet products. As a Senior Software Engineer, you will build backend services, infrastructure, and data systems for Robinhood’s crypto, Web3, and wallet offerings. You will solve distributed systems and correctness challenges while...

Join BitGo as a Senior Backend Engineer focusing on mobile solutions in Toronto. You'll design robust APIs and enhance the user experience for retail clients. In this full-time role at BitGo, you will collaborate intensively within the Mobile Engineering team to develop scalable services that empower our API-centric platform. With 6+ years of server-side...

Build secure, scalable backend infrastructure at LotusFlare, using distributed systems expertise to support millions of concurrent API calls globally. As a Senior Backend Engineer, you will develop, secure, and scale mission-critical systems for LotusFlare’s DNO Cloud platform. You will own software from development through production maintenance, while...

At Affim, 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. As we build Affim's advertising platform and evolve Marketplace into a best in class shopping destination, the ability to route and discover is one of the greatest levers for...

RustLab Software Engineering Featured Jobs Special ReferralSenior Software EngineerRemote — United States or CanadaAbout the roleSenior software engineering: review and score AI-written code.Experienced engineers help frontier AI research teams evaluate AI-written code. This is remote AI‑evaluation work, suited to people who can bring professional...

Design reliable backend systems with Python or Go at Tucows Domains, working remotely from Canada on APIs, databases, and production software.As a Senior Backend Software Engineer, you will build and maintain services supporting Tucows Domains products. This hands-on individual contributor role provides technical direction across multiple systems while...

About OpenLoop OpenLoop was co-founded by CEO, Dr. Jon Lensing, and COO, Christian Williams, with the vision to bring care anywhere. Our telehealth support solutions are thoughtfully designed to streamline and simplify go-to-market care delivery for companies offering meaningful virtual support to patients across an expansive array of specialties, in all 50...

About Statflo Statflo provides a leading sales acceleration platform for retailers, currently deployed in thousands of locations across North America. Our proprietary platform enables an organization to directly increase conversation workflow, build more authentic relationships, increase in-store appointments, and increase sales and ROI. We’re a...

NMI is looking for a passionate Senior Software Engineer to join our Development team as a result of NMI's continued growth and investment in the underlying systems. This role reports to the Engineering Manager. As a senior developer with strong experience in C# and/or PHP, you will join a team of industry-leading experts that are talented, ambitious and...

Elevate location search technology with Uber Maps as a Staff Software Engineer. Lead critical backend services and scalable systems while collaborating across teams in a dynamic environment. In this impactful role, you will set the technical direction for high-stakes Maps Search projects, from initial problem definition to full production delivery. You'll...

Senior Backend Engineer### Senior Backend EngineerApply: Remote Canada (ON): Full time: Posted 30+ Days Ago: R49905## ## 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 qualificationsRole Type: New RoleAI...

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...