backend engineer ruby jobs in Calgary

1,705 backend engineer ruby job listings in Canada. Find daily updated positions from leading job boards.


  • Calgary, Alberta, Canada Affirm Full-time

    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 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,...


  • Calgary, Alberta, Canada Affirm Remote Full-time $153,000 - $213,000 Contract

    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 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,...


  • Calgary, Alberta, Canada Kibbi Full-time

    Shape the future of shopping with Affirms as a Backend Software Engineer. This remote role focuses on building impactful search and recommendation systems in a collaborative environment. Join Affirms to drive the technical strategy for your team while developing backend systems at scale. With over 8 years of experience in languages like Python or Kotlin and...

  • Software Engineer

    3 days ago


    Calgary, AB, Canada Affirm Full-time

    The Partner Merchant Interfaces - Integration team within Decisions Foundations is growing and we are looking for a Software Engineer II with a track record of leading projects and initiatives on the Partner Merchant Interfaces Team You will be part of a fast paced team which is responsible for the APIs that Partners and Merchants use to integrate with...


  • Calgary, AB, Canada Affirm Full-time

    Affirm's Batch Developer Experience team builds batch development and testing tools to speed and stabilize workloads. As a developer on this team you will partner with product and infrastructure engineers to create tools that streamline workflows and improve reliability of Affirm's batch processing.The role requires 1.5+ years as a software engineer, with...


  • Calgary, AB, Canada GitLab Full-time

    GitLab is seeking a Senior Backend Engineer for the Duo Chat team to build core AI features behind GitLab Duo Chat. You will work on flow components, agentic flows, and integration with LangGraph within the Duo Workflow Service, interfacing with the Rails monolith.You’ll own backend features end-to-end, integrate generative AI models, and design scalable...


  • Calgary, AB, Canada Finofo Full-time $100,000 - $130,000 Contract

    A dynamic tech company in Calgary is on the lookout for a Back-End Engineer. In this role, you'll develop core back-end systems with Python and PostgreSQL, work in tandem with front-end engineers, and contribute to critical product features. The ideal candidate will have significant experience in back-end systems, a passion for collaboration, and a drive for...


  • Calgary, AB, Canada Affirm Remote Full-time $133,000 - $183,000 Contract

    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 Partner Merchant Interfaces - Integration team within Decisions Foundations is growing and we are looking for a Software Engineer II with a track record of leading projects and...


  • Calgary, Alberta, Canada Synechron Full-time

    A leading global consulting firm is seeking a highly skilled Senior Core Java Developer in Calgary. The role involves designing and maintaining scalable banking applications, with a focus on multithreading, collections, and data structures. Ideal candidates should have over 12 years of Core Java experience and a deep understanding of the banking domain. The...


  • Calgary, AB, Canada GitLab Full-time

    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...


  • Calgary, AB, Canada Affirm Full-time

    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 most. The Batch Developer Experience team makes batch development and testing faster and more reliable at affirm. As a developer on this team you will partner with product and...


  • Calgary, AB, Canada Affirm Full-time

    Affirm is hiring a Software Engineer II in Canada (Ontario) for backend API work and scalable systems. You will design, develop and launch APIs using Python or Kotlin, with AWS, MySQL and Kubernetes powering the stack.You will break down projects with the team, collaborate with product, design and analytics, and help keep systems reliable through metrics and...


  • Calgary, AB, Canada Pragmatike Full-time

    Pragmatike is hiring a Senior Backend Software Developer to architect, design, build, and scale the backend platform powering thousands of real-time video streams into actionable insights for operators and engineers on production lines.You will collaborate with the Head of Engineering and AI R&D to define cloud services, APIs, data pipelines, CI/CD, and...


  • Calgary, AB, Canada Affirm Full-time

    Affirm is a remote-first company focused on privacy-aware consumer web experiences and measurement. The Senior Software Engineer will own backend data pipelines and measurement systems integrating paid media, SEO, and downstream outcomes like signup and GMV.You will partner with engineering, product, marketing, analytics, and data teams to embed consent,...


  • Calgary, Alberta, Canada Kibbi Full-time

    At Affirms 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 Affirms 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...


  • Calgary, AB, Canada Affirm Full-time

    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...


  • Calgary, AB, Canada Affirm Full-time

    Affim is seeking a Staff Engineer to lead projects on the Fraud Decisioning team. You’ll build tools to empower fraud-fighting capabilities, partner with Product, ML, Analytics, and Business teams, and use data-driven decisions to improve risk deciders.This remote role is open to candidates in Canada and offers a transparent pay structure with equity and...


  • Calgary, AB, Canada Affirm Full-time

    Affirm is building a remote-first data infrastructure team focused on scalable cache services (Redis and Valkey). You will help design, implement, and productionize these systems across AWS, MySQL, and distributed data platforms, with a strong emphasis on reliability and performance.Join us to own end-to-end migrations, automate workflows, participate in...


  • Calgary, AB, Canada Quik Hire Staffing Full-time

    We are hiring for one of our clients, seeking a Backend Java Developer to design, develop, and maintain scalable backend systems using Java and related technologies. The role involves collaborating with cross-functional teams to deliver high-performance solutions for critical business applications. Key Responsibilities: Develop and optimize backend services...


  • Calgary, Alberta, Canada Matcha Full-time

    Do you want to empower organizations to build smarter compensation strategies while ensuring fair pay for all employees?Syndio is the leading pay governance and compensation intelligence platform. We help organizations make better pay decisions at every stage of the compensation lifecycle, from leveling and offers to promotions and merit. Our platform gives...