senior backend software engineer python jobs in Montreal

EXFO Inc. is seeking a Senior Backend Software Developer to design, develop, and evolve backend services powering its fiber monitoring platforms. You will work on distributed systems, API-driven services, and data pipelines in production-scale environments.The role emphasizes autonomy, end-to-end ownership, and collaboration with Product, QA, and DevOps...

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...

A leading AI technology company in Canada seeks a skilled backend engineer to develop scalable systems for integrating AI Agents within contact center environments. The role demands creating robust backend services, ensuring real-time communication, and implementing context-aware handoff mechanisms. Candidates should possess a degree in Computer Science,...

Justworks in Toronto, Canada is seeking a Senior Software Engineer to own large-scale projects from discovery through launch, delivering measurable customer impact. You will collaborate with product and design teams to craft scalable solutions and drive robust testing, monitoring and deployment practices.You will improve performance and reliability of...

Affirm, Inc. is seeking an experienced engineer to join the AI Platform team, shaping the gateway, runtime, and evaluation services that power AI workloads across millions of users.You will own end-to-end technical decisions, partnering with security and product teams to set guardrails and ensure scalable, reliable delivery. You will work on enabling...

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...

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...

A leading payment technology provider is seeking a Senior Software Engineer to join their team. This backend-focused role involves architecting and developing high-quality software solutions for payment processing systems. The ideal candidate has over 5 years of experience in software development, especially within the fintech sector. The position offers a...

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,...

Affirm, Inc. is seeking a senior backend engineer to design and guide the next era of scalable systems from a Canada-based remote role.You will drive architecture decisions and work with cross-functional teams to ensure reliability in a financial ledgering context. You will lead architecture decisions, collaborate with product, design and analytics to ensure...

Company Description: FluidAI is specialized in the development and deployment of data-driven surgical solutions, with an initial focus on general and gastrointestinal surgery. Our technologies integrate medical devices, software, and artificial intelligence into platforms that address real clinical and operational challenges across the continuum of surgical...

Sardine is seeking a backend-focused Senior Software Engineer to design, build, and maintain scalable APIs and services across our engineering teams. You will contribute to large-scale features, improve internal tooling, and help shape product and technical roadmaps in a fast-growing fintech environment.Ideal candidates have 7+ years in web backend...

A technology consulting company is seeking a Senior Backend Engineer (AWS) to design and implement robust backend systems. This role involves working with AWS cloud services and Kubernetes, as well as managing infrastructure using Terraform. The ideal candidate will have over 5 years in backend development, proficiency in Python, and excellent...

Affirm, Inc. is seeking an experienced Capacity Modeling Engineer to own quarterly goals for the team and lead engineers through ambiguity while delivering capacity plans for peak sales events. You will translate demand forecasts into resource settings across regions and environments.You will collaborate with product, design and analytics, establish reliable...

Offre d'emploi : Développeur Cloud AWS Python Localisation : Montréal Mode de travail : Hybride (2 jours par semaine au bureau) Début : Dès que possible Salaire : Non précisé Le masculin est utilisé pour alléger l'annonce. Ce que nous allons accomplir ensemble : Tu rejoindras une grande organisation en pleine transformation technologique au...

Are you passionate about building high-throughput, low-latency REST APIs that power critical platform infrastructure? Do you thrive on leading architectural decisions and mentoring engineers to elevate technical standards? Join our world-class enterprise security team Akamai empowers developers and organizations globally by providing resilient,...