senior backend engineer python aws jobs in Ottawa

askpolly, based in Ottawa, is seeking a Senior Software Engineer to design, build, and scale production systems behind its AI-powered insights platform. This full-time role, on a hybrid schedule (4 days in-office), focuses on backend architecture with opportunities for full-stack contributions.You will own complex features from problem definition to...

A digital transformation firm in Canada is seeking a Senior System Engineer to support clients with implementation projects across North America. The role demands experience in designing and deploying technical services, along with outstanding communication skills. Candidates should have a Bachelor’s degree and proficiency in various scripting and...

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, streaming infrastructure, event-driven frameworks, BI, analytics tooling, large-scale data platforms, and agentic data tools such as semantic layers and internal platform data...

The Consumer Authentication Platform team is looking for a passionate Senior Software Engineer to help build the secure, reliable, and seamless authentication experiences that connect millions of consumers with affirm’s financial productsAuthentication is the front door to affirmOur systems power critical consumer journeys (including sign-up, sign-in,...

Apollo.io is seeking a Senior Software Engineer to join a fast‑growing team building data platform architecture and distributed integrations that scale.You will own backend services, data pipelines, and observability, collaborate with global teams, and bring an AI‑first mindset to coding, debugging, and deployment.The role offers remote and in‑person...

Libryo, part of ERM Group, seeks a Senior DevSecOps Engineer to automate and harden how we build, ship, and run software on AWS. You will own CI/CD pipelines and infrastructure as code, embedding security as code across development and operations.You will drive automation, secure baselines, and evidence controls for ISO 27001:2022, SOC 2, CIS benchmarks, and...

Lead Python Backend Engineer role focusing on distributed systems and scalable data pipelines on AWS. Requires over 7 years of experience and strong Python/cloud expertise.

Marketing & Privacy Engineering (MPE) builds trusted, privacy-aware consumer web experiences and measurement systems that enable sustainable growth. Within MPE, the Marketing pillar owns Affi’s Logged-Out Web experiences, web experimentation, client-side tagging, marketing technology integrations, attribution, and measurement. As a Senior Software...

Apollo.io is seeking a Senior Software Engineer to join a fast‑growing team building data platform architecture and distributed integrations that scale. You will own backend services, data pipelines, and observability, collaborate with global teams, and bring an AI‑first mindset to coding, debugging, and deployment. The role offers remote and...

A tech company specializing in event-driven architecture is seeking a Senior Software Developer to join their AI team. The role involves leading technical projects, creating robust APIs, and collaborating across functions to enhance product offerings. Candidates should have over 7 years of experience, strong backend development skills particularly in Python...

Affi, a remote-first company, is seeking a Senior Software Engineer to own backend systems at scale and to build data pipelines and measurement foundations for connected growth channels. You will work with Product, Marketing, Analytics, and Data Engineering to ensure consent, tagging, identity, and consumer-data requirements are incorporated from the...

The Mozilla Corporation is wholly owned by the non-profit 501(c) Mozilla Foundation. This means we aren't beholden to any shareholders — only to our mission. Along with thousands of volunteer contributors and collaborators all over the world, Mozillians design, build and distribute open-source software that enables people to enjoy the internet on their...

Lead technical strategy as a Staff Backend Engineer with Affir in a remote setting. Leverage your expertise in Python or Kotlin to build scalable systems for Trust and Safety Foundations. In this remote role, you will take on crucial responsibilities in shaping technical strategies and managing major projects as part of the Checkout Engineering team. With...

Become a key member of the ClickPipes team as a Senior Backend Engineer at ClickHouse Cloud, focusing on data ingestion services for high-performance systems. This role offers flexibility in a remote environment while driving technical decisions.At ClickHouse, we are seeking an experienced engineer with over 5 years of software development in distributed...

About the TeamThe ClickPipes team builds the services that power data ingestion into ClickHouse Cloud. As a primary entry point for customers' data, ClickPipes is critical to product adoption and the company's growth. We work at petabyte scale, solving challenges in distributed systems, fault tolerance, and high-throughput ingestion. You'll help make these...

Elevate your career at Affirm as a Senior Backend Software Engineer focused on online storage and database technologies. This remote role enables you to design, optimize, and manage large-scale SQL databases with a strong emphasis on reliability and performance.Affirm is seeking a talented Senior Software Engineer to enhance its Online Storage team. You'll...

Actalent is seeking a DevOps Engineer to accelerate a cloud migration across three scrum teams in Ottawa and Calgary. You will bring senior AWS expertise to move from on-premises infrastructure to AWS, within a team of about eight people on an eight-month contract.The role emphasizes leadership, tooling setup, and architectural improvements, with a hybrid...

About GliaGlia is the #1 Banking AI platform, empowering community and regional financial institutions to create efficiencies, accelerate loan growth, drive deposits, and deliver experiences that win against megabanks and fintechs.Glia's Banking AI Operating System is a central intelligence layer on top of existing tech stacks, activating an AI workforce of...

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...

Contribute to innovative video solutions as a Senior QA Automation Engineer at Epiphan Video. Utilize your Python and Playwright skills to enhance our automation framework. This role is full-time and permanent, based in Ottawa, ON, with a hybrid working model. You will be at the forefront of testing automation for our devices and multimedia platform. Key...