python backend engineer jobs in Montreal

Grafana Labs is seeking a Senior Mimir Engineer to join our Databases team, driving the design, deployment, and operation of our cloud-scale telemetry databases across Mimir OSS and Grafana Cloud.You will work on multi-tenant distributed systems, contribute to performance and reliability improvements, participate in on-call rotations, and help shape the...

BiblioCommons, a Toronto-based software company powering libraries, seeks a Senior Backend Engineer to build scalable platforms for millions of users and to drive AI-enabled development within the team.You will design, implement, and own critical backend services, lead projects, and mentor engineers while collaborating across product, data, and platform...

Senior Staff Software Engineer, Backend (Compute Platform) Remote Canada At Affim, 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, highly-available, and global infrastructure that is...

A technology firm is hiring a Senior Full Stack Engineer (Backend-Leaning) with a strong focus on backend services and AI applications. The ideal candidate will have experience in building agent-based applications and API integrations, along with a hands-on mindset for AI implementations. Strong collaboration skills with product and engineering teams are...

Cresta is seeking a Senior Backend Engineer for the Platform Team to build scalable, real-time backend services that power enterprise integrations. You will design and optimize the authentication stack, and ensure secure, low-latency data paths across chat and email integrations.You will work with frontend, ML, and infra teams to deliver robust auth and...

A technology company is seeking a Senior Backend Engineer who will be responsible for designing and implementing robust backend systems. You will work closely with DevOps and frontend teams to deliver scalable applications leveraging AWS cloud services and Kubernetes. The role requires a minimum of 5 years of backend development experience, proficiency in...

Sardine is hiring a backend-focused Senior Software Engineer to design, build, and scale APIs and services across our engineering teams in a remote-first setting serving Canada. You will craft robust backend systems and data pipelines, collaborating with stakeholders to deliver high-value features.You will contribute to product roadmaps, document technical...

## DescriptionCresta 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...

Affirm, Inc. seeks a Staff Engineer to lead the Fraud Decisioning team, shaping architecture and delivering scalable fraud-fighting systems. You will collaborate with Product, ML, Analytics, and Business teams to define and deliver high-impact initiatives, mentoring engineers and enforcing best practices.The role emphasizes designing modular solutions,...

A leading technology company located in Ontario is seeking an experienced backend developer to architect and scale the backend infrastructure supporting its research and AI platforms. The ideal candidate has over 5 years of backend development experience and is proficient in Node.js, Python, or Go. The role involves developing scalable systems, managing...

Astek Canada recherche un Développeur Senior C# .NET pour contribuer à la plateforme Orchestrade et aux projets de marchés financiers à Montréal. Vous développerez des fonctionnalités back-end, optimiserez les composants et participerez aux tests, revues de code et à l'évolution de l’architecture, en étroite collaboration avec les Analysts...

A technology company is looking for a Senior Back End Software Engineer to join their fully remote team. The ideal candidate will have at least 7 years of back-end software development experience and expertise in Python, FastAPI, and AWS services. This role involves designing and maintaining high-quality code, owning the software development lifecycle, and...

Senior Software Engineer, Backend (Consumer Authentication Platform)Remote CanadaAt Affim, 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 Consumer Authentication Platform team is looking for a passionate Senior Software Engineer to...

Abbeal is seeking an AI Developer (AI Engineer) in Montreal to design and evolve AI agents at the core of a fast-growing product. You will ship end-to-end AI features from API to database, deploying to production with a strong focus on reliability and performance. The role is hybrid in Montreal and requires candidates already in Canada with work rights. You...

Motion Recruitment is sourcing a Senior Forward Deployed Java Engineer in Test (SDET)/Quality Engineering Architect for a global bank in Mississauga, ON. The contract role will drive the global quality engineering strategy across multi-tier, high-throughput trading platforms, with remote work optional and potential to move to hybrid onsite.Responsibilities...

A leading technology company in Canada is seeking a Mid-Senior level Backend Developer to join their fully remote engineering team. You will be responsible for designing and maintaining Python-based services, managing databases, and ensuring system reliability. The ideal candidate has 3-5 years of backend experience, strong knowledge of AWS and RabbitMQ, and...

Senior Recruitment Associate - IT/Technology @ Highspring About the Role We are looking for talented Full Stack Developers to join our dynamic team. You will be responsible for designing, developing, and maintaining scalable web applications that deliver exceptional user experiences. This role requires strong expertise in both front-end and back-end...

DevOps Engineer DevOps Engineer Get AI-powered advice on this job and more exclusive features. At Xsolla, we believe that great games begin as ideas, driven by the curiosity, dedication, and grit of creators around the world. Our mission is to empower these visionaries by providing the support and resources they need to bring their games to life. We are...

ABOUT YOU You will play a pivotal role in delivering high-impact software solutions across our platform. You bring curiosity, initiative, and a passion for clean, scalable systems. You collaborate effectively with teammates and cross-functional partners to design, build, and improve our technical stack. You’re hands‑on, deeply engaged in the code, and...

Horizon Trading Solutions, basé à Montréal, recherche un Développeur Java Backend pour contribuer au cœur de notre plateforme de trading sur les marchés financiers électroniques. Vous intégrerez une équipe Scrum et participerez à la conception, au développement et à la mise en production des solutions.Vous apporterez une expertise Java et...