Jobs for backend engineer ruby at Toronto

Join ecobee, a leader in smart home technology, as a Backend Software Engineer in Toronto, Canada. You'll design and develop scalable systems for IoT device connectivity and cloud communication. As part of the Device Management Services team, you will focus on building and maintaining distributed backend systems for secure IoT device connectivity. This role...

Transform the fintech landscape as a Senior Backend Engineer at a leading firm in Downtown Toronto. This hybrid position emphasizes building scalable backend systems for investment and risk management. In this role, you'll engage with diverse teams to design high-performance solutions that streamline financial data workflows and support complex datasets...

Take on a vital role as a Senior Python Backend Engineer focusing on API and platform engineering in Toronto, Ontario. Develop scalable backend solutions for mission-critical financial platforms. This on-site position is suited for candidates with 5-10+ years of strong Python backend development experience. You will design and implement backend services...

5+ years building and operating production REST APIs in Node.js & TypeScript Hands-on AWS serverless experience — Lambda, API Gateway, DynamoDB, S3, CloudWatch, IAM, SNS, SQS, Glue, ECS — built and run in production, not just in tutorials Strong REST API design skills — resource modeling, HTTP semantics, versioning, idempotency, and OpenAPI/Swagger...

Join HelloFresh's Ingredient to Product tribe as a Staff Backend Engineer. This position in Toronto focuses on building scalable solutions and driving operational success through cutting-edge technology. This role involves strategic collaboration with business leads and engineering teams to address technical gaps and manage production systems. You’ll set...

At Lyft, our purpose is to serve and connect. We aim to achieve this by cultivating a work environment where all team members belong and have the opportunity to thrive. Marketplace teams are at the heart of our products and decision-making. We’re looking for passionate, driven engineers to build systems that empower our users (both Drivers and Riders) to...

Drive AI innovation at Nexxa as a Backend Engineer specializing in AI infrastructure. Your role will focus on integrating powerful Generative AI and Computer Vision solutions. With at least 4–8+ years in backend or ML engineering, you'll design backend systems that support AI model integrations and service data needs across various industries. Proficient...

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...

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. The work is ambitious, the...

Elevate your career with DoorDash as a Backend Software Engineer. In this hybrid position, you’ll optimize backend architecture and scale web applications for our logistics engine. As part of our dynamic engineering team, you’ll focus on developing advanced backend solutions that enhance performance and security. The role includes collaborating on...

Advance your career as a Senior Software Engineer with HelloFresh's Production Scheduling Technology team in Toronto, ON. This hybrid role focuses on backend development using Python and FastAPI, driving automation in meal production. The selected candidate will work on enhancing the Python-based algorithmic engine that automates HelloFresh's planning...

About Stream Stream (GetStream.io)'s SDKs and APIs enable devs to build activity feeds, chat, and voice/video, powering over a billion end users worldwide . Trusted by top brands like Strava, Nextdoor, Patreon, and eBay, we're on a mission to make real-time communication and social experiences seamless for developers and their users. We're also the...

Who we areAbout StripeStripe is a financial infrastructure platform for businesses. Millions of companies - from the world's largest enterprises to the most ambitious startups - use Stripe to accept payments, grow their revenue, and accelerate new business opportunities. Our mission is to increase the GDP of the internet, and we have a staggering amount of...

At Snowflake, we are powering the era of the agentic enterprise. To usher in this new era, we seek AI-native thinkers across every function who are energized by the opportunity to reinvent how they work. You don’t just use tools; you possess an innate curiosity, treating AI as a high-trust collaborator that is core to how you solve problems and accelerate...

Take on a vital role as a Senior Python Backend Engineer focusing on API and platform engineering in Toronto, Ontario. Develop scalable backend solutions for mission-critical financial platforms. This on-site position is suited for candidates with 5-10+ years of strong Python backend development experience. You will design and implement backend services...

Shape the future of Spotify by becoming a Backend Engineer on the Platform team in Toronto. Work on innovative tools and infrastructure supporting a billion customers worldwide. As a Backend Engineer, you will contribute to Spotify's monorepo migration and build crucial tooling and infrastructure. This role will have you solving integration challenges,...

Overview The Lead Backend Engineer on the AI Platform team plays a critical role in building, evolving, and leading the backend systems and engineering practices that power internal products, customer‑facing capabilities, AI‑enabled workflows, and operational decision‑making across the organization. This role combines hands‑on backend engineering...

Senior Backend Engineer (AWS) Join to apply for the Senior Backend Engineer (AWS) role at Lumenalta 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...

We are looking for world-class engineers to tackle cutting-edge problems of applying Machine Learning in the real world. Join this team to help develop a system that will serve as the main interface to our machine learning platform. The goal of this system is to help in all stages of model development, from feature engineering all the way to production...

Direct message the job poster from Coverstar Coverstar is building the first safe, creative, AI-native social platform for Gen Alpha. We’re building a world where the next generation can create, connect, and grow with technology that’s fun, expressive, and safe by design. We’re backed by top investors like a16z, moving fast, and hiring a...