backend engineer ruby

Own high-performance backend systems at Canals, applying scalability, reliability, and architecture skills in a remote-first company. Canals serves wholesale distributors with software that automates essential business workflows. This senior backend engineering position focuses on complex systems and meaningful product features as the customer base expands....

Build backend applications and data pipelines as a Staff Software Engineer at Marqeta, working remotely from Ontario or British Columbia. The Program Experience team is scaling Marqeta’s Customer Migration Platform. This experienced engineering role focuses on Java and Python, scalable APIs, cloud native applications, and data integration. You will...

Secure Every Identity, from AI to Human Identity is the key to unlocking the potential of AI. Okta secures AI by building the trusted, neutral infrastructure that enables organizations to safely embrace this new era. This work requires a relentless drive to solve complex challenges with real-world stakes. We are looking for builders and owners who operate...

Full-time · Toronto, Canada | Hybrid or remoteAbout Kora Kora is a Toronto-based, VC-backed startup building an intelligent assistant for busy families. Our product combines a mobile app with a dedicated home display to help families manage schedules, chores, shopping, meals, and everyday responsibilities.We are building an assistant that understands family...

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...

Shape event-driven backend architecture with Python, Kafka, and Kubernetes at BoostSecurity in Montreal, QC. Work alongside AI coding agents. As a Senior Backend Developer, you will own architecture, judgment, and quality across BoostSecurity’s software supply chain platform. Build Python microservices with Kafka, MariaDB, GraphQL, AWS, and Kubernetes....

Become integral to ThreatAware's mission as a Backend Engineer. Contribute to AI development, optimize APIs, and maintain a robust platform for cybersecurity solutions.As a vital member of the ThreatAware team, you will leverage your C# and .NET expertise to build and maintain backend services. This role focuses on enhancing AI-powered capabilities,...

At Swoop, our mission is simple: Improving patient outcomes. As a market leader in AI-driven, data-powered, and privacy-compliant healthcare engagement, we connect the signals that drive earlier diagnosis, better treatment decisions, and sustained adherence. Our integrated, privacy-safe platform, enables life sciences companies to drive measurable patient...

Build backend applications and data pipelines as a Staff Software Engineer at Marqeta, working remotely from Ontario or British Columbia. The Program Experience team is scaling Marqeta’s Customer Migration Platform. This experienced engineering role focuses on Java and Python, scalable APIs, cloud native applications, and data integration. You will...

Build scalable Java backend services remotely for Just Eat Takeaway.com from Alberta, Manitoba, or Ontario. Apply strong system design expertise. As a Senior Java Developer, you will support the Logistics Areas and Fees team. You will architect, develop, and operate distributed systems for delivery calculations. The work includes Java 21, REST APIs, message...

Build scalable Java backend services remotely for Just Eat Takeaway.com from Alberta, Manitoba, or Ontario. Apply strong system design expertise. As a Senior Java Developer, you will support the Logistics Areas and Fees team. You will architect, develop, and operate distributed systems for delivery calculations. The work includes Java 21, REST APIs, message...

Build high-performance backend systems with Golang in a permanent hybrid Senior Software Engineer position focused on enterprise energy management. Shape scalable technology through microservices and cloud-native engineering. This Senior Software Engineer role centers on modernizing distributed architectures and developing intelligent, data-driven energy...

Senior Backend Engineer building SaaS systems with data, machine learning, and AI capabilities for Kaseya’s global IT platform. This hands-on senior or staff role leads backend architecture and technical direction across product areas. You will create scalable systems, integrate ML and AI into customer workflows, and collaborate with Product, Design, and...

About the Role Parallel Domain builds synthetic data and simulation platforms for autonomous vehicle and robotics teams. The Product Engineering team owns the customer-facing product and service layer: the self-serve platform for productizing ML reconstruction pipelines, our high-fidelity simulation-as-a-service product, the web applications and dashboards...

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, semantics, versioning, idempotency, and OpenAPI/Swagger...

From Fivetran’s founding until now, our mission has remained the same: to make access to data as simple and reliable as electricity. With Fivetran, customer data arrives in their warehouses, canonical and ready to query, with no engineering or maintenance required. We’re proud that more organizations continue to leverage our technology every day to...

We’re hiring a Backend Engineer to work on the core platform that powers ThreatAware — and this is one of the most exciting times to join. We’re building AI-powered capabilities on top of six years of real cyber asset data, and you’ll be right in the middle of it. If you want to work on hard problems that matter, ship things that people actually use,...

JOB SUMMARY Seeking a Software Developer V with a strong backend focus to design and review services and REST APIs. This role involves leading the orchestration of multiple upstream services, guiding the team on scalable and stateless service design, and defining API contracts, error handling, and resiliency patterns. The developer will support team members...

Earn Up To $50/hr as an OpenClaw Agent Builder Shape the future of autonomous agents like OpenClaw. Freelance, remote, up to $50 USD/hr. Weekly payments. Trusted by 10,000+ software engineers worldwide MIN EXP REQUIRED 2+ years PAY RATE Up to $50 USD/hr Earn Up To $50 USD/hr— Plus Additional Incentives Rates vary based on expertise and project...

Fleetworthy seeks a Senior Backend Developer to innovate fleet readiness technology through effective API design and robust database management, embracing a data-driven approach. As a Senior Backend Developer at Fleetworthy, you will leverage more than 4 years of backend experience to build RESTful and GraphQL APIs while managing PostgreSQL databases. Your...