senior backend software engineer python jobs in Montreal

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 mostYour role will be instrumental in designing the next generation of Affirm’s Checkout Platform to provide a world‑class buying experience that puts customers first!We...

Build Elastic Cloud offerings through backend engineering, technical design, and sophisticated debugging with Scala, Java, or Go. Work within a globally distributed team of engineers.This Senior Software Engineer role supports Elastic’s Control Plane - Hosted team and key functional areas of its Cloud offerings. You will analyze system strengths and...

At Affid, 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.As we build affirm's advertising platform and evolve Marketplace into a best in class shopping destination, the ability to route and discover is one of the greatest levers for...

Remote CanadaAt 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.The streaming team at affirm is responsible for all things data and drives the strategy for event driven architecture, stream processing, data exploration, discovery...

Miratech helps visionaries change the world. We are a global IT services and consulting company that brings together enterprise and start-up innovation. Today, we support digital transformation for some of the world's largest enterprises. By partnering with both large and small players, we stay at the leading edge of technology, remain nimble even as a...

Python and LLM engineering define this remote Senior AI/LLM Engineer position with Kake, building production-ready applications and systems at scale.Kake seeks senior engineers who design, build, and productionize AI systems. You will work across Python, FastAPI, LAG pipelines, embeddings, vector search, and LLM APIs. The work spans prototyping through...

Build Python AI services with FastAPI and async APIs at Newfold Digital, working remotely with daily overlap from 09:00 to 13:00 EST. Design scalable systems using modern LLM and retrieval technologies.As a Senior Software Engineer, you will build production APIs and agent-powered platform capabilities. Your work includes Semantic Kernel, provider-agnostic...

Concevez des services backend évolutifs avec AWS et Go chez AppDirect, dans une organisation hybride favorisant la communication asynchrone.Comme développeur logiciel senior, vous créez des applications multiniveaux résilientes et performantes pour Tackle, l’unité d’AppDirect. Vous utilisez des chaînes d’outils modernes, livrez fréquemment en...

Apply Python development and UNIX/Linux scripting as a Senior Automation Engineer focused on infrastructure automation solutions. Improve software deployment and patching through automation.This experienced Senior Automation Engineer designs, develops, and maintains automation solutions for infrastructure patching and application deployment. The work also...

Build production-grade Python automation at Telesat in Canada, working with Pytest, APIs, asynchronous messaging, and Kubernetes environments. This senior hands-on software development role designs frameworks and engineering tools for distributed, event-driven microservices. You will improve testability, shorten feedback cycles, diagnose failures, and create...

About Turing Turing is one of the world’s leading AGI infrastructure companies, working with frontier AI labs to accelerate model development through high-quality training data, evaluations, and engineering talent. About the Role We’re looking for experienced, hands-on software engineers to help evaluate and improve AI coding models . Rather than...

Java Python Software Engineer I - MontrealDo you enjoy being part of team that develops high-quality code? Do you enjoy ensuring the quality of software delivered?About our TeamOur technology teams use cutting-edge technologies to build products and systems to advance science and health. We provide our customers with powerful digital solutions, helping them...

Montreal Full time R119194 Java Python Software Engineer I – Montreal Do you enjoy being part of team that develops high-quality code? Do you enjoy ensuring the quality of software delivered? About our Team Our Technology teams uses cutting-edge technologies to build products and systems to advance science and health. We provide our customers with powerful...

Java Python Software Engineer I – MontrealDo you enjoy being part of team that develops high-quality code? Do you enjoy ensuring the quality of software delivered?About our TeamOur Technology teams uses cutting-edge technologies to build products and systems to advance science and health. We provide our customers with powerful digital solutions, helping...

Adecco is currently hiring an Incident Response Manager for a leadership opportunity within a growing cybersecurity organization. This role is ideal for professionals with experience in incident response, digital forensics, cybersecurity operations, threat management, EDR, SIEM, and team leadership. As an Incident Response Manager, you will lead cyber...

COFOMO recherche un ingénieur logiciel cloud expérimenté à Montréal pour concevoir et développer des applications cloud natives sur AWS, en mettant en œuvre des pipelines CI/CD et les meilleures pratiques de sécurité.Vous utiliserez Python pour le back-end, HTTP API et bases de données relationnelles/NoSQL, tout en tirant parti de GitHub Copilot et...

A global digital library service is seeking a Software Engineer II to design and optimize scalable systems within their ML Data Engineering team. The role focuses on building event-driven solutions in Python, integrating machine learning models to enrich content. Candidates should have extensive experience with AWS services and a solid background in software...

Build search and backend systems at Affirm remotely across Canada, using JavaScript, TypeScript, Python, or Kotlin. Help shape shopping discovery. As a Software Engineer I, you will contribute to projects supporting Affirm’s Ads business and Marketplace search experience. You will design, develop, and launch backend systems at scale while writing clear,...

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...

Build AI underwriting systems with Python and backend expertise at nesto, in a remote-first role open across Canada. Shape production lending technology.As a Senior Applied AI Engineer, you will lead major projects for Maestro, nesto’s AI underwriting and lending engine. Apply LLMs, retrieval-augmented generation, structured extraction, and strong API...