senior backend software engineer python jobs in Montreal

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  • Montreal, QC, Canada RELX INC Full-time $79,000 - $131,000 Contract

    Elevate your coding skills as a Senior Software Engineer focusing on Python and Java at Elsevier in Montreal. Collaborate with a dedicated team to ensure high-quality software delivery. In this full-time role, you will be pivotal in advancing Elsevier’s Research Data Platform. Your core responsibilities include developing code for new projects, debugging...


  • Montreal, QC, Canada Crossing Hurdles Full-time $241,000 - $343,000 Contract

    Build AI data pipelines remotely as a Senior Software Engineer using Python, TypeScript, and evaluation workflows. Work part-time with PST overlap.This contractor assignment focuses on infrastructure supporting AI data generation, collection, and evaluation. You will develop scalable processes, refine preference-data rubrics, and investigate quality issues....


  • Montreal, QC, Canada Trigyn Technologies Limited Full-time $85,000 - $110,000 Contract

    Trigyn Technologies is an innovative solutions provider and systems integrator that has been in business for 30 years with more than 1,500 resources deployed today. We have professionals on board at locations in the United States, Canada, Europe, India, Africa and the Far East, working around the clock to bring cutting-edge technology closer to you. Trigyn...


  • Montreal, QC, Canada Abbeal Full-time $120,000 - $180,000 Contract

    Design AI agents with Python and TypeScript as a Senior AI Developer at a Montreal startup, working in a hybrid model. Build production systems for legaltech.Abbeal is hiring a Senior AI Developer, also identified as Senior AI Engineer, for a permanent client-side position. You will help launch a new project intended to transform the legal sector. The work...


  • Montreal, QC, Canada Corporate Recruiters Ltd. Full-time $70,000 - $100,000 Contract

    Build automated quality coverage for advanced AI-based scheduling software using Python APIs, Selenium, and CI/CD support. Remote candidates may visit Vancouver for team meetings.As a Senior QA Automation Engineer, you will maintain automation frameworks for enterprise products. You will create test plans, coordinate QA activities, and help ensure reliable...


  • Montreal, QC, Canada Apptoza Inc. Full-time $90,000 - $130,000 Contract

    Role: Software Engineer with Core Java, Apache Spark, Python, SQL, and Linux experienceLocation: Montreal, QC – HybridJob DescriptionJob Description – Core java, Apache Spark, PythonWe are seeking a highly motivated and experienced Software Engineer with strong expertise in Core Java, Apache Spark, Python, SQL, and Linux to design, develop, and support...


  • Montreal, QC, Canada Xona Full-time $90,000 - $120,000 Contract

    Xona is seeking a Software Engineer in Montreal to contribute to the development and integration of a desktop application that communicates with our internal satellite receivers. You will write application code for satellite subsystem components and collaborate with a small, mission-focused team to deliver critical insights.The ideal candidate thrives in a...


  • Montreal, Quebec, Canada Astek Full-time

    Offre d'emploi : Développeur Cloud AWS PythonLocalisation : MontréalMode de travail : Hybride (2 jours par semaine au bureau)Début : Dès que possibleSalaire : Non préciséLe masculin est utilisé pour alléger l'annonce.Ce que nous allons accomplir ensemble :Tu rejoindras une grande organisation en pleine transformation technologique au sein du domaine...


  • Montreal, QC, Canada Miratech Full-time

    Build enterprise AI platforms with Python and LangGraph at Miratech, supporting a US healthcare client through remote work from anywhere. As a Senior AI Engineer, you will develop agentic AI solutions using Python, LangGraph, and LangChain. You will create intelligent workflows, conversational applications, and automation across business functions. The work...

  • Senior Python Engineer

    22 hours ago


    Montreal, Montreal (administrative region), Canada Hunter Bond Full-time $180,000 - $220,000 Contract

    A prominent FinTech firm in Montreal is seeking a Senior Software Engineer with strong Python skills. The role involves building scalable software, engaging in code implementation, and working on large-scale projects. Ideal candidates should possess experience in mission-critical environments and a desire to learn Rust. This full-time position offers a...


  • Montreal (administrative region), QC, Canada Relx Plc Full-time $70,000 - $90,000 Contract

    ## Python Java Sr Software Engineer -MontrealApply: Montreal: Full time: Posted Today: R119194**Java Python Software Engineer I – Montreal**Do you enjoy being part of team that develops high-quality code?Do you enjoy ensuring the quality of software delivered? ## **About our Team**Our Technology teams uses cutting-edge technologies to build...


  • Montreal, Quebec, Canada Intact Financial Corporation Full-time

    As part of the development team, you will play a key role in the evolution of the VOSKER and SPYPOINT web application, used daily by our customers. In addition to contributing directly to the code across the entire technology stack, you will act as a technical reference for the team: you will support less experienced developers, influence architectural...


  • Montreal, Quebec, Canada Affirm, Inc. Full-time

    Build AI platform services at Affirm using Python or Kotlin, designing reliable backend systems for production workloads at scale. Work remotely within your home country. As a Senior Backend Software Engineer, you will own technical decisions across the AI Platform team. You will build governed interfaces for models, tools, and agents while supporting...


  • Montreal, Quebec, Canada Jeeves Full-time

    Design financial APIs at Jeeves using Go, Python, or Node.js/TypeScript while working remotely or hybrid, depending on location and department. As a Senior Backend Engineer, you will build production systems for payments, cards, spend management, and compliance. You will support customers across more than 20 countries. The work includes RESTful and GraphQL...


  • Montreal, QC, Canada Akamai Technologies, Inc. Full-time $120,000 - $217,000 Contract

    Build high-scale backend data services at Akamai using Python, Java, or Go with hands-on development across Cloud Data Services. Work within a global engineering team.As a Senior II Software Engineer, you will design and scale backend services, APIs, microservices, and distributed systems. You will balance technical oversight with development, clarify...


  • Montreal, QC, Canada Jobgether Full-time $120,000 - $170,000 Contract

    Design scalable backend systems for payment protection as a Senior Engineer, working fully remotely from Canada with fraud prevention expertise. Build reliable automation for disputes and risk management.This Senior Backend Engineer role focuses on payment dispute management, fraud prevention, and risk automation. You will own systems through architecture,...


  • Montreal, QC, Canada Berkeley Payments Full-time $90,000 - $120,000 Contract

    A payment technology leader is seeking a Senior Software Engineer to join their fully remote team. This role focuses primarily on backend development, maintaining and enhancing payment processing systems while collaborating with various teams. The ideal candidate should have over 5 years of software development experience, strong skills in API design and...


  • Montreal, QC, Canada Jobgether Full-time $140,000 - $180,000 Contract

    Build scalable campaign infrastructure remotely from Canada using Python or Ruby, distributed systems expertise, and modern backend engineering practices.This Senior Backend Developer joins the Campaigns Team within a collaborative engineering group. You will develop large-scale backend applications supporting personalized, multi-channel marketing campaigns....


  • Montreal, QC, Canada Affirm, Inc. Full-time $153,000 - $213,000 Contract

    Build AI platform infrastructure with Python or Kotlin as a remote Senior Backend Engineer at Affirm, serving teams and production workloads.This senior-level role owns technical decisions and projects across design, launch, and on-call. You will build highly available distributed systems using AWS, MySQL, and Kubernetes. Your work supports LLM gateways,...


  • Montreal, Quebec, Canada WorkinGames Full-time

    ABOUT YOUWe are looking for a Senior Software Engineer (React Native) who is architecturally strong, quality-driven, and highly collaborative to join our Mobile Engineering team. The best candidate will be someone who thrives in a fast-paced, highly collaborative, and exceptionally dynamic setting and is excited to lead mobile architecture decisions, build...