java backend engineer jobs in Montreal

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942 java backend engineer job listings in Canada. Find daily updated positions from leading job boards.


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

    Build Jeeves financial services remotely with Go, Python, or TypeScript while designing reliable systems for global payments and cards. Work full time from anywhere.As a Senior Backend Engineer, you will build backend services powering payments, cards, spend management, and compliance infrastructure. You will work with RESTful and GraphQL APIs, databases,...


  • Montreal, QC, Canada Outlier Full-time

    Build autonomous-agent evaluations remotely with OpenClaw, backend engineering, and AI automation experience on a flexible freelance schedule.Outlier is seeking contributors to help train large language models as proactive, multi-step agents. The work focuses on architectural workflows, live system interactions, and detailed technical feedback. Applicants...


  • Montreal, QC, Canada Affirm Full-time $110,000 - $140,000 Contract

    The Online Storage team provides a set of managed databases as a platform, used to persist data for all AffIn servicesOur platform enables self-service access to OLTP storage systems, including Relational DB(MySQL), KV(DynamoDB), Distributed SQL(TiDB) and Cache(Redis)As a team, we are responsible for various data and access patterns, including but not...


  • Montreal, QC, Canada Jeeves Full-time

    Engineer Jeeves's stablecoin-native banking platform remotely, focusing on backend systems, financial transactions, and production reliability. Support products used by global enterprises across 35 countries. This Senior Backend Engineer role covers payments, corporate cards, treasury, spend management, and compliance infrastructure. You will own features...


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

    We’re looking for a Senior Software (Database) Engineer to help build the underlying storage system for our general purpose data platformThe database layer has both OLAP and OTLP capabilities to support classic analytics queries while also serving up freshly stored dataIt embraces the separation of compute and storage and is designed to run on multiple...


  • Montreal, QC, Canada Jobgether Full-time $110,000 - $140,000 Contract

    Build reliable fintech services remotely from Canada using C#, ASP.NET Core, and modern cloud infrastructure. Support payment processing and financial operations worldwide.This senior backend engineering role focuses on scalable microservices and resilient integrations for reconciliation, payouts, settlements, and fee calculations. You will contribute to...


  • Montreal, QC, Canada Jobgether Full-time $90,000 - $130,000 Contract

    Ruby backend engineering meets large-scale repository services in Canada, with ownership spanning APIs, databases, testing, deployment, and monitoring. This role is remote-first.As a Backend Engineer, you will develop and evolve services powering a widely used software development platform. You will work with Ruby, Ruby on Rails, Go, APIs, background jobs,...


  • Montreal, QC, Canada Miratech Full-time $90,000 - $130,000 Contract

    Build cloud-native applications with Java, Spring Boot, React, and TypeScript at Miratech, supporting Workforce Management and Customer Experience solutions remotely.As a Full Stack Engineer, you will develop scalable backend services and responsive web applications for operational business processes. The work includes REST APIs, microservices, PostgreSQL,...


  • Montreal, QC, Canada Fujitsu Limited Full-time $138,000 - $221,000 Contract

    Lead Java and Scala development for Fujitsu's Virtuora Network Controller, working remotely in Canada across advanced SDN applications and architecture.This experienced lead software engineer transforms complex requirements into extendable software architecture, designs, and data models. You will guide SDN applications spanning PCE, service orchestration,...


  • Montreal, QC, Canada Miratech Full-time $110,000 - $150,000 Contract

    Join Miratech as a Senior Java Developer focusing on the innovative Routing Engine platform. Collaborate with teams to create scalable, real-time interaction routing solutions for enterprise contact centers. Miratech is a leading global IT services provider dedicated to supporting digital transformation. In this senior role, you will design and build a...


  • Montreal, QC, Canada SoftwareCareers Full-time $195,000 - $329,000 Contract

    # Senior Backend Engineer, Architecture Engineering: Nonlinear Productivityat GitLab • Remote, Canada; Remote, United StatesBack to jobs1. Home2. Jobs3. Canada4. Senior Backend Engineer, Architecture Engineering: Nonlinear Productivity1d agoG## Senior Backend Engineer, Architecture Engineering: Nonlinear ProductivityGitLabEngineeringFull-timeRemote,...


  • Montreal, QC, Canada Affirm, Inc. Full-time $120,000 - $180,000 Contract

    As a Senior Software Engineer, you will build the data and measurement foundations that connect consumer acquisition activity across paid media, SEO/AEO, and other growth channels to downstream outcomes such as signup, conversion, and GMVYou will work at the intersection of data engineering and marketing technology, building reliable pipelines, identity and...


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

    Shape reliable capacity plans with Python or Kotlin as a Senior Backend Engineer on Affirm’s remote Canada Capacity Modeling team. Forecast traffic and tune resources for peak demand. This senior position owns quarterly goals while guiding engineers through ambiguous, open-ended problems. You will build backend systems at scale using AWS, MySQL, or...


  • Montreal, Quebec, Canada Affirm 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, Montreal (administrative region), Canada ALTEN Full-time $70,000 - $90,000 Contract

    Une entreprise d'ingénierie et de services IT recherche un Software Engineer Full-stack pour rejoindre ses équipes à Montréal. Le candidat idéal aura une solide expérience dans le développement Full-stack, avec une connaissance des technologies Java et des compétences en front-end comme Angular ou React. Le poste offre de réelles opportunités de...


  • Montreal, Montreal (administrative region), Canada Systematix group Full-time $100,000 - $140,000 Contract

    Systematix recherche un De9veloppeur(se) Backend Python Senior – AWS 0 Montre9al pour un mandat dns environ 12 mois, en mode hybride (2 jours au bureau/semaine). Le candidat participera e0 l9volution de9 applications Cloud natives et au de9veloppement de0 lin Finance/Comptabilite9, avec une forte emphasis AWS et CI/CD.Profil requise: 5 ans et plus, Python...


  • Montréal, QC, Montreal Regional Municipality, QC; Montréal region; Québec Province, Canada US Mobile Full-time €160,000 - €220,000 Temporary

    US Mobile is building the future of wireless communication. The goal: one unified network open to any person and any device, worldwide. Connection without walls. We’re getting there by empowering customers. All three major networks on one phone and one plan, plus home internet from Starlink. No lock-in. No commitments. Custom fit plans at every price...


  • Montréal, QC, Montreal Regional Municipality, QC; Montréal region; Québec Province, Canada Modes Full-time

    Overview Modes is a digital transformation and organizational design collective working with various clients throughout North America. Our focus is on financial services. We help clients plan, design and launch digital human-centred experiences that cater to users\' needs and deliver elegant solutions to challenging problems. We constantly seek top talent...


  • Montreal, Montreal (administrative region), Canada Dialogue Full-time $90,000 - $130,000 Contract

    A leading virtual care provider in Canada, seeks a Platform Developer, Backend, to enhance its platform tools and services. This mid-senior level role focuses on writing maintainable code, developing backend services, and ensuring system reliability. The ideal candidate has 3-5 years of experience in distributed architectures and must be bilingual in French...


  • Montreal, Montreal (administrative region), Canada Publicis Groupe Canada Full-time $65,000 - $85,000 Contract

    Une entreprise de technologie recherche un Développeur Backend à Montréal. Vous serez responsable de la création d'applications web robustes et du développement de la logique côté serveur. Les candidats doivent avoir une solide expérience en PHP, et être familiarisés avec des CMS comme Drupal et WordPress. Ce poste offre des opportunités de...