backend engineer ruby

At Affi, 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 Affi is responsible for all things data and drives the strategy for event driven architecture, stream processing, data exploration, discovery and validation....

Staff Software Engineer, Backend Platform Toronto, Canada Join us in building the future of finance. Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this...

Join us in building the future of finance. Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this historic cultural and financial shift, keep reading. About the team...

Terminal builds telematics data infrastructure for the commercial fleet industry. Commercial auto insurers and fleet software companies, including industry leaders like Intact Insurance, Penske, and Progressive, depend on our platform to access GPS, speeding, and vehicle data from 330+ telematics providers. We recently raised our Series A led by Battery...

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. As we build Affim'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...

This role spans everything our customers touch: the integrations that turn raw vehicle telematics from 330+ providers into clean data, the public APIs enterprises build against, the dashboards they work in, and the ingestion platform underneath it all. It is a mix of product and backend engineering, shaping the APIs and deeper backend components our...

Elevate your career as a Staff Backend Engineer with DoorDash in Toronto, ON. Lead the architectural strategy for a powerful notification system designed for massive scalability and intelligent personalization. This role emphasizes technical leadership and a strong grasp of distributed systems. Your focus will be on driving the roadmap for the Notification...

Elevate your career as a Senior Web3 Backend Engineer at Robinhood in Toronto. Architect and scale backend services for innovative crypto and financial applications in a high-impact role. As part of Robinhood's elite team, you will contribute to pioneering solutions in the rapidly evolving financial landscape. Your experience will drive the development of...

Take your software engineering career to new heights with Asepha as a Senior Software Engineer in Toronto or New York. Focus on backend development and AI integrations that redefine medication management. As a key team member at Asepha, your role is integral to shaping our engineering direction and delivering innovative solutions in pharmacy technology....

Build reliable backend systems remotely with Instacart across Ontario, Alberta, British Columbia, or Nova Scotia. Apply distributed systems expertise to logistics. As a Senior Software Engineer, you will shape Instacart’s Logistics Platform, powering routing, task allocation, fulfillment tracking, and shopper compensation. You will design scalable...

Build AI platform infrastructure with Python or Kotlin as a remote Senior Backend Engineer at Affirm, serving teams and production workloads. This senior-level role owns technical decisions and projects across design, launch, and on-call. You will build highly available distributed systems using AWS, MySQL, and Kubernetes. Your work supports LLM gateways,...

Build AI platform infrastructure with Python or Kotlin as a remote Senior Backend Engineer at Affirm, serving teams and production workloads. This senior-level role owns technical decisions and projects across design, launch, and on-call. You will build highly available distributed systems using AWS, MySQL, and Kubernetes. Your work supports LLM gateways,...

Build AI platform infrastructure with Python or Kotlin as a remote Senior Backend Engineer at Affirm, serving teams and production workloads. This senior-level role owns technical decisions and projects across design, launch, and on-call. You will build highly available distributed systems using AWS, MySQL, and Kubernetes. Your work supports LLM gateways,...

Principal Software Engineer, Backend - PlatformReady to be pushed beyond what you think you’re capable of?At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system.To...

Xero in Vancouver is seeking a backend-focused software engineer to help deliver high-quality services. You will design, build, and operate scalable systems across cloud environments, collaborating with product and platform teams to align with business goals and customer outcomes. You will mentor others, contribute to planning, and advocate for engineering...

Take your expertise to the next level as a Senior Backend Systems Engineer at AGI. You'll focus on designing, implementing, and maintaining backend systems in an inspiring collaborative environment. In this senior role, you'll be vital in transforming early-stage ideas into robust production-scale solutions. The team consists of dedicated professionals,...

Build secure backend systems in Python and Rust for AuraNet from Ottawa or Toronto, supporting real-time data across disconnected environments. As a Senior Software Engineer Backend, you will design distributed systems for Dominion Dynamics’ mesh networking platform. The work spans networking, security, containers, and autonomous platforms. You will own...

Build high-performance financial services at Bitvavo using Kotlin, Kafka, and event-driven microservices architecture. This engineering role supports digital asset trading platforms. As a Senior Backend Engineer, you will craft high-quality software for Bitvavo customers and financial markets. You will tackle technical challenges, influence technology...

Elevate your career as a Senior Backend Engineer on Unity’s Diagnostics Team. This role emphasizes designing and maintaining critical systems that enhance game telemetry and reporting for developers. You will be at the forefront of developing backend solutions that handle large-scale data ingestion while ensuring high performance and reliability. Working...

Shape the onboarding experience for millions at Amazon Prime as a Software Development Engineer. Focus on designing scalable systems that deliver high-quality, personalized experiences for new members. As a Software Development Engineer at Amazon, you will tackle large-scale distributed systems challenges and directly impact customer experiences. This role...