java backend engineer jobs in Montreal

We are looking for a Staff Engineer to lead projects and initiatives on the Fraud Decisioning teamYou’ll be responsible for building tools and systems that empower affirm fraud fighting capabilities, work with cross-functional teams to adopt and monitor those and use analytics and data driven decisions to further improve the performance and quality of...

Affirm is building the next generation of customer identity and authentication. This role is a hands-on engineering position inside Information Security, focused on designing and shipping core CIAM capabilities that protect customers and support growth.You will build and operate backend services that power registration, login, authorization, and account...

Be instrumental in a new SaaS venture as an Experienced Backend Engineer. Your AI-first approach and proficiency in .NET/C# will drive the foundation of a cutting-edge application. This position is designed for a motivated senior engineer eager to influence the technical direction of a revolutionary software platform. You will collaborate closely with teams...

Outlier offers freelance, remote work for an OpenClaw Agent Builder role. Earn up to $50 USD/hr with weekly payments, and access to tools like GPT/Claude. Projects involve teaching AI agents to design, coordinate, and optimize complex workflows.Ideal candidates have 2+ years in backend engineering, AI automation, or complex systems, with experience building...

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, streaming infrastructure, event-driven frameworks, BI, analytics tooling, large-scale data platforms, and agentic data tools such as semantic layers and internal platform data...

Outlier invites experts to shape the future of autonomous agents like OpenClaw. This freelance, remote role offers up to $50 USD/hr and weekly payments. Most contributors spend 5-10 hrs/week, with potential to scale earnings based on project needs.Join a platform trusted by thousands of engineers worldwide, where you can choose flexible scheduling and access...

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...

Epistemix seeks a Senior Back-End Software Engineer to join our Canada, United Kingdom, and United States team. You will design, build, and maintain scalable services using Python, FastAPI, and TypeScript for backend work, with a strong focus on reliability.You will own the software lifecycle from requirements to deployment, collaborate across teams, and...

Senior Software Engineer, Backend (AI Platform) Remote Canada 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...

Location: Canada (Remote-friendly) Start date: ASAP Languages: English (required), French (strong plus) Databases: PostgreSQL, MongoDB About The Role Pragmatike is hiring on behalf of a fast-growing, product-driven technology company building data-intensive platforms used at scale across multiple markets. The product focuses on automation, data extraction,...

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 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 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...

Camunda is the enterprise platform for agentic orchestration, enabling organizations to coordinate AI agents, people, and systems across complex, end-to-end business processes. With built-in governance, auditability, and human oversight, Camunda gives enterprises the control they need to move AI from pilots to production – safely and at scale. Trusted by...

Camunda is the enterprise platform for agentic orchestration, enabling organizations to coordinate AI agents, people, and systems across complex, end-to-end business processes. With built-in governance, auditability, and human oversight, Camunda gives enterprises the control they need to move AI from pilots to production — safely and at scale. Trusted by...

A tech recruitment company in Montreal is seeking a Full Stack Developer to join their team. The role involves designing and maintaining web applications using Java and frontend technologies like React or Angular, and deploying solutions on AWS. Candidates should have strong skills in Java, microservices architecture, and AWS services, along with a...

Mode de travail : Hybride, minimum 2 jours/semaine en présentielCe que nous allons accomplir ensemble :Notre client, un acteur majeur du secteur financier, recherche un(e) Spécialiste DevOps / DevSecOps pour rejoindre l'escouade responsable de son produit de signature électronique. Ce produit est un écosystème distribué de 18 composants : microservices...

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.Marketing & Privacy Engineering (MPE) builds trusted, privacy-aware consumer web experiences and measurement systems that enable sustainable growth. Within MPE, the Marketing...

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...

A technology firm is seeking a Senior Full Stack Java Developer to focus on building a cloud-based settlement platform. The ideal candidate will have strong experience with distributed systems, Java, Spring frameworks, and DevOps practices. This role involves actively participating in requirements refinement, designing scalable applications, and maintaining...