backend engineer ruby

Senior Software Engineer (Full-Time, Remote) — Canada Work Schedule: 9:00 AM - 5:00 PM PST About the role At AutoScale Ventures, we build large-scale systems behind products like VinAudit.ca (vehicle history and data) and SquidProxies.com (proxy infrastructure). We're looking for a Senior Software Engineer to design, build, and evolve the backend systems...

Reports to: Director of Software Type: Full-Time Location: Ottawa or Toronto Location AuraNet is Dominion Dynamics' mesh networking platform for autonomous assets working in contested and disconnected environments. It has to move data securely and in real time over links that aren't conventional wired networks, where bandwidth is scarce, connections...

Strengthen Stripe Radar with backend engineering and distributed systems expertise, building low-latency services that stop fraud and abuse at scale. This software engineering role focuses on products and infrastructure for businesses using Radar. You will work across backend services, enterprise APIs, and shared platforms. You will also bring new signals,...

Build Python 3.x backend services and automation tooling at Kumaran Systems, working with REST APIs and Linux production environments. This senior engineering role requires seven-plus years of production Python development using Python 3.9 or newer. You will develop services with FastAPI, Flask, or Django REST Framework, while supporting Oracle databases,...

Join Rivian as a Software Engineer II focusing on backend development for commercial technology. Help shape the systems that underpin customer purchasing and vehicle registrations with precision and scalability. In this role, you will contribute to Rivian's backend team, responsible for essential services related to tax calculations, title registrations,...

Join the Tilt team At Tilt, we see a side of people that traditional lenders miss. Our mobile-first products and machine learning-powered credit models look beyond credit scores, using over 250 real-time financial signals to recognize real potential. With millions of customers worldwide, we're not just changing how people access financial products - we're...

Elevate patient care as a Senior Backend Engineer at FluidAI, developing smart, data-driven surgical solutions. This remote role involves deep system design, C#, and .NET expertise while collaborating with global healthcare teams. FluidAI is seeking an experienced backend engineer to design and develop scalable systems that align with our innovative...

About Vasco Vasco is the revenue context layer for AI agents. The product was built around one idea: confident is not the same as correct, and revenue decisions get made on confidence all the time. We structure your CRM, billing, calls, and support data into a semantic layer where every metric is sourced, every definition is locked, and every answer is...

Shape the future of search at Affid as a Backend Software Engineer. Leverage your expertise in Python or Kotlin to enhance consumer experiences in this remote role. Affid is seeking a seasoned Backend Software Engineer with 8+ years in building scalable systems. This role involves setting technical strategies, collaborating across product development teams,...

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...

Elevate your software engineering career at Xero in Vancouver. Focus on backend development using C#, .NET Core, and AWS to deliver scalable, high-quality solutions for small businesses. As a Backend Software Engineer within the Accounting Core team, you'll tackle complex problems while transitioning to modern microservices architecture. Collaborate across...

Why Harvey At Harvey, we’re transforming how legal and professional services operate. By combining frontier agentic AI, an enterprise-grade platform, and deep domain expertise, we’re reshaping how critical knowledge work gets done for decades to come. This is a rare chance to help build a generational company at a true inflection point. We have strong...

Elevate patient care as a Senior Backend Engineer at FluidAI, developing smart, data-driven surgical solutions. This remote role involves deep system design, C#, and .NET expertise while collaborating with global healthcare teams. FluidAI is seeking an experienced backend engineer to design and develop scalable systems that align with our innovative...

Build scalable backend systems at Canals as a senior engineer, working remotely across North and South America on automation and AI software. Canals develops software for wholesale distributors, supporting orders, purchasing, accounts payable, and critical workflows. As a Senior Backend Software Engineer, you will own complex projects while balancing...

Veeva Systems is a mission-driven organization and pioneer in industry cloud, helping life sciences companies bring therapies to patients faster. As one of the fastest-growing SaaS companies in history, we surpassed $3B in revenue in our last fiscal year with extensive growth potential ahead. At the heart of Veeva are our values: Do the Right Thing,...

Develop MaintainX integration foundations remotely in Canada, using backend services, relational databases, and CI/CD to support enterprise connectivity. As a Senior Software Developer, you will build reusable foundations for connectors, marketplaces, and automation-driven onboarding. The work includes API platforms, SDKs, enterprise integrations, and...

Use Python and distributed systems expertise to build secure, scalable backend services from Canada. Work full time on cloud-native applications in AWS. As a Staff Backend Engineer, you will design core services and backend logic for event-driven systems. The work spans asynchronous programming, data processing pipelines, serverless applications, and...

Join Spotify's Platform team as a Senior Backend Engineer focused on authorization and permissions systems. Leverage your backend expertise to support Spotify's growing creator ecosystem and enhance security. As a pivotal member of the Authorization team at Spotify, you will design and operate backend services crucial for managing access across Spotify's...

Design highly scalable RESTful microservices for Atlassian while working fully remotely from a United States timezone. Apply backend engineering and cloud architecture skills. This Backend Software Engineer role focuses on delivering creative improvements for engineering teams. You will build daily features in a cross-geo distributed environment and support...

Senior Backend Engineer (AWS) As a Senior Backend Engineer at Lumenalta, you will design and implement robust backend systems, ensuring our applications are secure, scalable, and efficient. You will be responsible for working closely with DevOps and frontend teams to deliver high-performance applications that leverage AWS cloud services and Kubernetes. Your...