backend engineer ruby

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,...

Affirm is seeking a software engineer for the Streaming team in Ottawa. You will design and scale data infrastructure, build backend services, and collaborate across product, design and analytics to ship features that rely on Kafka, Flink and AWS.You will participate in ideation, articulate constraints, and help manage trade-offs with stakeholders while...

Build scalable backend systems at Canals as a Senior Software Engineer, working remotely across North and South America with product teams.This senior-level engineer owns complex backend projects from planning through deployment. You will improve scalability, performance, and reliability while shaping product features for wholesale distributors. The work...

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...

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 shared...

Upsun seeks a Backend Software Engineer to enhance our billing systems. Focus on backend service development in Go for complex billing integrations and ensure accuracy in customer invoicing. In this role, you will build and maintain the backend services for our billing platform. Your expertise will drive projects that handle revenue across multiple...

The Streaming team at Affirm is responsible for all things data and drives the strategy for event driven architecture, stream processing, data exploration, discovery and validationWe leverage existing open source technologies like Kafka, Flink, Schema registry and also build our own as neededAs a member of our team you would spend time identifying and...

OverviewTucows is a remote-first backend engineering role for Canada, building open‑internet products across domains, Ting, and Wavelo.ResponsibilitiesDesign and develop secure, scalable, reliable, and efficient backend services using modern frameworks and tools.Collaborate with frontend developers to define clear and consistent API endpoints,...

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...

Cohere is looking for a Backend Engineer to specialize in optimizing model inference systems. In this remote-first role, you will create low-latency serving infrastructure for advanced backend services. Candidates for this position must have over five years of backend engineering experience and strong programming skills in Go, Rust, or C++. You'll work on...

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...

Design scalable backend services with Python, Go, and Kubernetes for Achievers’ Data Intelligence team in a hybrid Toronto setting. Build actionable insights from SaaS data. As a Senior Software Engineer, you will support reporting, analytics, exports, and data-driven product features. You will work with GCP, APIs, cloud data warehousing, and distributed...

Atlassians can choose where they work – whether in an office, from home, or a combination of the two. That way, Atlassians have more control over supporting their family, personal goals, and other priorities. We can hire people in any country where we have a legal entity.To help our teams work together effectively, this role is fully remote but requires...

Affirm, Inc. is seeking a software engineer to design and implement backend features for our underwriting platform, supporting partnered merchants and customers across Affirm apps, e-commerce interfaces, and card experiences. Remote-first, with base pay and equity structured for Canada. You will collaborate with product, design, and analytics to balance risk...

Build scalable backend services at Atlassian in a fully remote role for candidates located in a United States timezone. Apply modern programming and cloud expertise. As a Backend Software Engineer, you will deliver creative improvements for engineering teams. The role involves RESTful microservices, object-oriented programming, databases, and public cloud...

Workday is seeking a Software Development Engineer to build the AI Infrastructure Development Platform, enabling teams to develop, deploy, and operate AI agents in production. You will design and implement backend services and tooling across the SDLC for AI apps, focusing on distributed systems, orchestration, and developer experience. Join a team delivering...

Backend platform leadership at Splunk Enterprise Security centers on distributed systems and cloud technologies across cloud and on-premises deployments. Lead technical strategy for scalable security software. As a Senior Backend Software Developer, you will own technical roadmaps and architectural integrity for backend services and data-processing...

Lead backend strategy for Splunk Enterprise Security, using Python or Go across cloud and on-premises deployments. Shape scalable, secure platforms. This senior engineering role guides multiple teams and backend product areas. You will develop distributed systems, databases, and data-processing workflows while partnering with Product Management, Architects,...

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...

About the RoleOur client, a leading FinTech company revolutionizing digital payments, is seeking an exceptional Principal Software Engineer to join their fully remote engineering team. This senior role offers the opportunity to shape the future of our backend systems, influencing architectural decisions and mentoring junior engineers. As a fully remote-first...