senior backend software engineer python jobs in Montreal

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,...

Elevate your career as a Senior Backend Software Engineer with Affirm, focusing on online storage solutions in a remote-first environment. Be part of a team that builds and scales large-scale database systems. Affirm is seeking a talented senior software engineer to enhance its Data and Storage Services team. This role involves working with relational and...

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...

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...

Offre d'emploi : Développeur Cloud AWS PythonLocalisation : MontréalMode de travail : Hybride (2 jours par semaine au bureau)Début : Dès que possibleSalaire : Non préciséLe masculin est utilisé pour alléger l'annonce.Ce que nous allons accomplir ensemble :Tu rejoindras une grande organisation en pleine transformation technologique au sein du domaine...

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...

Développeur(se) Backend Python Senior – AWS Rejoignez Systematix en tant que Développeur(se) Backend Python Senior – AWS Vous êtes développeur(se) Backend Python Senior et souhaitez travailler sur des applications Cloud natives AWS dans un environnement technologique d’envergure? Systematix est à la recherche d’un(e) Développeur(se) Backend...

Dialogue is the #1 virtual care provider in Canada. By developing our Integrated Health Platform, we provide exceptional online health and wellness programs (primary care, mental health, iCBT, EAP, and wellness) to organizations that want to improve the wellness of their employees and families.When it comes to our work, we set the bar high. Together, we’re...

A leading software firm is seeking a highly experienced Lead Software Developer in Montreal, Quebec. In this role, you will work on cutting-edge SaaS technologies and lead impactful projects. The position requires deep expertise in programming languages such as Python and Java, alongside a commitment to high-quality software solutions. A strong leadership...

Identity Engineering owns the systems responsible for onboarding all consumers and managing their authentication and verification journeys acrossAffirm's product surfaces In this role, you will need to gain a deep understanding of the business, product and engineering context, and utilize that context to own and deliver high-availability and low-latency...

At Aff…? Identity Engineering owns the systems responsible for onboarding all consumers and managing their authentication and verification journeys across Aff…? In this role, you will need to gain a deep understanding of the business, product and engineering context, and utilize that context to own and deliver high-availability and low-latency systems on...

# Senior Software Engineer, Backend - Platform TeamCrestaSalary not statedFull-timeremote· seniorCanada, USAgrpcllmkubernetesdockerawsgcpazureListed via Jobicy · posted 14 Oct 2026. The application happens there, not on DevConnect.Apply on Jobicy## DescriptionCresta unlocks the true potential of the customer experience, turning every conversation into a...

At A ffirm, 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 Data and Storage Services team is responsible for affirm's data infrastructure across OLTP and OLAP systems, spanning critical online checkout databases, batch orchestration,...

At Affir​m, 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. Affir​m's engineering team is building a large-scale, highly available, and global infrastructure that is shared across multiple financial products. Ensuring that our...

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.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,...

As a Senior Software Engineer, you will build the data and measurement foundations that connect consumer acquisition activity across paid media, SEO/AEO, and other growth channels to downstream outcomes such as signup, conversion, and GMVYou will work at the intersection of data engineering and marketing technology, building reliable pipelines, identity and...

Affirm’s engineering team is building large-scale, fault-tolerant, global infrastructure shared across multiple financial products, merchants, and vendors. Making this infrastructure transparently available to all engineers is critical to the business. The engineering culture emphasizes blameless postmortems, detailed technical specifications, and...

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...

Grafana Cloud is a composable observability platform that integrates metrics, logs, traces, and profiles with Grafana. It lets customers use open-source observability software- including Prometheus, Mimir, Loki, Tempo, and Pyroscope as a Cloud service or on-premise solution without the overhead of installing, maintaining, and scaling their own observability...

Shape the future of data streaming as a Backend Software Engineer on Camunda’s innovative Data Streaming team. Embrace a fully remote role focusing on building scalable process data architectures. In this Senior position, you will revolutionize how Camunda handles process data, moving analytics off the live engine's critical path. Collaborate closely with...