python backend engineer jobs in Montreal

Unity Technologies Canada à Montréal recherche un développeur logiciel sénior pour orienter les passerelles API et bâtir des services cloud à grande échelle. Vous travaillerez sur l’architecture, l’exploitation et les choix techniques influençant de nombreuses équipes internes et externes.Vous prioriserez la maintenabilité, la résilience et la...

A global enterprise SaaS leader is seeking a Senior Software Engineer to enhance their core product. The successful candidate will architect scalable REST APIs, optimize backend services, and manage data workflows to support vast logistics operations. With a required 5+ years of experience in backend software engineering, expertise in Node.js, and a...

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.The Data and Storage Services team is responsible for affirm's data infrastructure across OLTP and OLAP systems, spanning critical online checkout databases, batch orchestration,...

Join Pragmatike as a Full-Stack Engineer, specializing in backend technologies from anywhere in Canada. Bring your expertise in Python and Node.js to deliver robust data-intensive platforms. This role focuses on backend systems, with approximately 70% of your time dedicated to back-end tasks such as API development and data flow management. You'll work...

Grafana Cloud is a composable observability platform that integrates metrics, logs, traces, and profiles with Grafana, allowing customers to use open-source observability software without installing, maintaining, and scaling their own observability stack The Databases team owns Mimir for metrics, Loki for logs, Tempo for traces, and Pyroscope for profiles....

A digital transformation firm in Canada is seeking a Senior System Engineer to support clients with implementation projects across North America. The role demands experience in designing and deploying technical services, along with outstanding communication skills. Candidates should have a Bachelor’s degree and proficiency in various scripting and...

# Senior Software Engineer, Backend - Platform TeamCrestaSalary not statedFull-timeremote· seniorCanada, USAgrpcllmkubernetesdockerawsgcpazureListed via Jobicy · posted 14 Oct 2026. The application happens there, not on DevConnect.Apply on Jobicy## DescriptionCresta unlocks the true potential of the customer experience, turning every conversation into a...

Staff Software Engineer, Backend (Identity Decisioning) Remote Canada At Affirma, 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. Affirm’s Identity team is mission-critical to the customer checkout experience. When a customer chooses...

The Databases team owns and operates the telemetry databases that are Mimir for metrics, Loki for logs, Tempo for traces, and Pyroscope for profilesOur databases are offered as a hosted service in Grafana Cloud, and additionally as on-premise solutions with Grafana Enterprise Metrics, Grafana Enterprise Logs, and Grafana Enterprise TracesThey are...

Vocantas is seeking a senior software developer for a remote, backend-heavy role. You will own major features, design scalable architectures, and contribute to AI-enabled capabilities within the platform. The position emphasizes security, reliability, and multi-month project work within a small team.You’ll collaborate with Product and QA, mentor peers, and...

At the company, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. Interns work side-by-side with top engineers in the industry while having autonomy from the get-go. They contribute to user-facing products and are able to see their work go live...

At affirm, 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.Affirm's engineering team is building a large-scale, fault-tolerant, and global infrastructure that is shared across multiple financial products, merchants, and vendors. Ensuring...

Who we are: Sardine is the leading agentic risk platform for fighting financial crime. Our integrated solution unifies data across risk teams to help organizations stop fraud in real time, prevent AI-driven attacks, and automate fraud and AML operations. Sardine’s platform is strengthened by one of the fastest-growing fraud consortiums in the market,...

Affirm, Inc. is seeking an experienced backend engineer to join the AI Platform team.You will design, build, and operate gateway, runtime, and evaluation services that scale AI workloads for millions of users and their transactions, while ensuring security, reliability, and observability. Based in Canada, you will collaborate with security, infrastructure,...

Affirm is seeking a Senior Software Engineer for the Consumer Authentication Platform. The role focuses on building secure, reliable authentication experiences across millions of users and merchants, spanning sign-up, sign-in, account recovery, and step-up challenges.You will lead architectural initiatives and deliver reusable authentication capabilities...

Affirm, Inc. is seeking a Senior Software Engineer to build data and measurement foundations that connect consumer acquisition activity to outcomes like signup, conversion, and GMV.You’ll work at the intersection of data engineering and marketing technology, delivering reliable pipelines and identity/event systems. You will collaborate with Engineering,...

A leading AI solutions company is hiring an ML Engineer in Toronto, Canada. In this role, you will design and maintain serving stacks for machine learning models and automate training pipelines using Kubernetes. Candidates should have solid experience with Python and knowledge of ML infrastructures. Join a team committed to deploying innovative AI...

Xsolla is seeking a Senior Backend Engineer to design, build, and operate scalable backend systems in a fast-paced, highly collaborative setting.You will develop event-driven services with Go and Kafka, create scalable microservices in Docker and Kubernetes, and push performance, resiliency, and reliability across production workloads.Own your code in...

Affirm is seeking a Staff Software Engineer, Backend (Identity Decisioning) to lead technical strategy for a distributed identity platform in Canada. The role is remote and focuses on high-availability backend systems that support identity checks, KYC, and regulatory compliance across markets.You will drive architectural decisions, mentor engineers, and...

The Engineering team builds systems that power affirm's mission. We take pride in our craft, building reliable, performant, and scalable solutions that touch every part of the business. Whether we're enabling new ways to pay, ensuring our platforms can scale to the most demanding levels in the industry, or developing seamless servicing experiences, our focus...