backend engineer nodejs jobs in Montreal

The Streaming team at Affirm is responsible for all things data and drives the strategy for event driven architecture, stream processing, data exploration, discovery and validationWe leverage existing open source technologies like Kafka, Flink, Schema registry and also build our own as neededAs a member of our team you would spend time identifying and...

Build Ruby and GraphQL backend capabilities remotely for GitLab’s Create: Source Code team, supporting reliable source code workflows across products.As a Backend Engineer, you’ll develop secure, tested, performant features for complex source code systems. You’ll design services, application programming interfaces, data models, and business logic while...

Affirm is seeking a software engineer for the Streaming team in Ottawa. You will design and scale data infrastructure, build backend services, and collaborate across product, design and analytics to ship features that rely on Kafka, Flink and AWS.You will participate in ideation, articulate constraints, and help manage trade-offs with stakeholders while...

Build scalable backend systems at Canals as a Senior Software Engineer, working remotely across North and South America with product teams.This senior-level engineer owns complex backend projects from planning through deployment. You will improve scalability, performance, and reliability while shaping product features for wholesale distributors. The work...

Design highly scalable RESTful microservices for Atlassian while working fully remotely from a United States timezone. Apply backend engineering and cloud architecture skills.This Backend Software Engineer role focuses on delivering creative improvements for engineering teams. You will build daily features in a cross-geo distributed environment and support...

Develop MaintainX integration foundations remotely in Canada, using backend services, relational databases, and CI/CD to support enterprise connectivity.As a Senior Software Developer, you will build reusable foundations for connectors, marketplaces, and automation-driven onboarding. The work includes API platforms, SDKs, enterprise integrations, and shared...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Engineer, Backend – Protection based in Canada. Join an innovative global payments technology company building infrastructure that helps businesses simplify payment operations, optimize performance, and protect revenue....

At Aff, 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 Capacity Modeling team ensures Aff**irm can safely handle forecasted traffic—especially during peak sales events—by translating demand forecasts into concrete, testable...

A North American IT solutions provider is seeking a Fulltime Software Engineer with 4+ years of experience in Java, Spring framework, and database management. You will design and support software components while collaborating with cross-functional teams. Strong communication skills and agile team experience are crucial. The role offers a competitive salary...

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,...

Architect high-throughput REST APIs with Python and Flask at Akamai, supporting resilient backend infrastructure for enterprise security platforms. As a Senior II Software Engineer, you will lead architecture, design, and implementation for high-performance backend systems. You will establish API standards, improve performance, and advance fault-tolerant...

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...

We are looking for a Software Engineer to join the Identity Decisioning team, responsible for building backend systems that validates consumer identity in all of affirm’s products by satisfying regulatory protocols like KYC The team partners closely with Product, Compliance, Auth, Fraud, and other engineering teams to deliver honest and transparent...

About Us: Based in San Francisco, California, Turing is the world’s leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems. Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who...

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,...

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. the company’s Bikes & Scooters team is developing the future of micro-mobility and we are looking for a solid, experienced Software Engineer to join our Stations Software Platform...

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...

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,...

Build scalable backend services with AWS and Python for an AI-driven risk intelligence platform, with flexible hybrid Montreal or remote work options.As a Senior Software Engineer, you will develop production backend services and RESTful APIs. You will optimize data processing workflows, database architecture, and cloud infrastructure. Your work supports...

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...