java backend engineer jobs in Montreal

Camunda is seeking a Backend Senior Software Engineer on the Data Layer team to advance storage and query capabilities for Camunda 8’s process data, spanning relational databases and Elasticsearch/OpenSearch. You will shape data pipelines, improve retention, and ensure scale and reliability across production systems.You will collaborate with product,...

Cresta unlocks the true potential of the customer experience, turning every conversation into a competitive advantage. Cresta’s unified AI platform combines conversational AI agents, real-time human agent augmentation, and comprehensive conversation intelligence to drive revenue and efficiency gains across every channel. The world’s leading companies,...

IBM Software is seeking a Software Developer: Generalist to design, develop, test, and deliver offerings using leading-edge and proven technologies. You will work in an Agile, collaborative environment to understand stakeholder requirements and contribute to the development of innovative software solutions.This is a Remote Role. The position requires a...

# Backend Engineer, Create: Source Code Experience (Ruby)GitLabSalary not statedFull-timeremote· midCanadarubygraphqlListed via Jobicy · posted 20 Oct 2026. The application happens there, not on DevConnect.Apply on Jobicy## DescriptionGitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Backend Engineer, Source Code: Repository Services (Ruby) based in Canada. As a Backend Engineer, you will contribute to the development and evolution of large-scale repository services powering a widely used software development...

GitLab is the intelligent orchestration platform for DevSecOps. GitLab enables organizations to increase developer productivity, improve operational efficiency, reduce security and compliance risk, and accelerate digital transformation. More than 50 million registered users and more than 50% of the Fortune 100* trust GitLab to ship better, more secure...

Tilt is a remote-first company building scalable backend systems powering consumer-facing products. We’re seeking Senior Backend Engineers who care about reliability, scalability, and collaboration.You’ll join one of several product or infrastructure teams, tackling challenges from decisioning to payments and APIs. You’ll work on high-impact projects...

Wagmo, a modern pet healthcare company, is seeking a Senior Software Engineer to lead claims automation and AI-driven features. This remote role supports the Pet Parents squad and requires shipping production-ready AI capabilities with a focus on reliability and cost efficiency.Based in Latin America, you will overlap at least 6 hours with US Eastern Time,...

Affirma is hiring for a backend-focused role focused on designing, developing, and launching scalable backend systems. You will work with Python or Kotlin, contribute to a large codebase, and participate in code reviews to maintain high quality.You will collaborate with teams and stakeholders, taking ownership of growth opportunities and balancing speed with...

Affirm, Inc. is seeking an experienced backend engineer for the Capacity Modeling team. You will design and operate scalable backend systems in cloud environments, focusing on capacity planning and performance under peak sales events.You will own quarterly goals, mentor teammates, and collaborate with product, design and analytics to align technical...

Cresta is seeking a senior software engineer in Canada to design and operate real-time AI agent infrastructure, delivering low-latency runtimes for voice and chat agents and a serverless-style function platform. You will own session management and multi-channel support in a Kubernetes-based environment.You will build developer tooling, CLI tools, SDKs, and...

Affirm, Inc. is seeking a hands-on mid-level backend engineer within Information Security to help build authentication services powering registration, login, and account lifecycle across B2C and B2B experiences.You will work with Python or Kotlin to implement secure features and collaborate with experienced engineers and partner teams. You will integrate...

Cresta is on a mission to turn every customer conversation into a competitive advantage by unlocking the true potential of the contact center. Our platform combines the best of AI and human intelligence to help contact centers discover customer insights and behavioral best practices, automate conversations and inefficient processes, and empower every team...

As a backend-focused Senior Software Engineer, you will play a pivotal role in designing, constructing, and maintaining APIs, services, and systems across our engineering team This multifaceted position involves developing new features on a large scale, refining internal tooling and processes, contributing to product and technical roadmaps, and assuming...

Grafana Labs is the company behind Grafana Cloud, the fully managed observability platform trusted by more than 10,000 organizations to ensure reliability, resolve incidents faster, and optimize telemetry at scale. Built on open source and open standards and designed for interoperability across any stack, Grafana Cloud brings AI to observability and...

Affirm is hiring a Senior Software Engineer, Backend (Capacity Modeling) for a remote Canada role. You will own quarterly goals, guide engineers through ambiguity, and ensure successful delivery of capacity modeling initiatives that translate demand forecasts into scalable infrastructure recommendations.You will partner with product, design and analytics to...

Affim is seeking a Senior Software Engineer to architect, build, and scale relational and distributed SQL databases. You will automate provisioning, backups, and upgrades, and own the networking stack on Kubernetes to ensure low latency and strong failover.You will influence the team roadmap, mentor engineers, and collaborate with product, design, and...

GitLab is seeking a Senior Backend Engineer for Deployment Environments to help make GitLab easier to deploy and validate across development, CI, GitLab.com, Dedicated, and Self-Managed. You will work on cloud-native deployment guidance and ephemeral environments, shaping infrastructure contracts.You’ll build tooling, define patterns for deployment, and...

Affirm, Inc. is seeking a hands-on mid‑engineering role within Information Security to build and maintain backend services powering registration, login, authorization, and account lifecycle across B2C and B2B experiences.You will work with experienced engineers and partner teams to deliver scoped identity features with strong security fundamentals,...

A leading technology company is seeking a backend software engineer for a remote position in Toronto. The role involves designing secure backend services, collaborating on API development, and working with modern frameworks. Candidates should have a minimum of 5 years experience, strong skills in Python or Go, and familiarity with PostgreSQL. This role...