backend engineer scale infrastructure jobs in Toronto

Robinhood Markets, Inc. is seeking a Staff Software Engineer for the Backend Platform in Toronto. You will set technical direction and lead multi-team initiatives to improve how backend systems are developed and operated, guiding adoption of platform capabilities and developer tooling. This role focuses on scalable, reliable systems and mentorship across...

Spin Master Hapiko is seeking a Backend Engineer to own the API, job queues, and real-time layer for a global sticker-printer product. You will scale and harden the backend, ensure fast, safe, and affordable operations as Hapiko grows, and own end-to-end server-side services.You will collaborate with firmware, ML Serving, and Trust Safety teams to maintain...

Sproutlogic Consulting in Toronto, Canada, is seeking a Software Engineer to develop full lifecycle product features and maintain high-quality codebases. The role focuses on server-side Java development, API design, and scalable services within a collaborative team environment.The ideal candidate has 1–3 years of software engineering experience, strong OO...

Commit in Toronto is seeking a Senior Backend Engineer to join the Customer Focus Group (CFG). You will design and maintain backend services and APIs, translating customer needs into product improvements.The role emphasizes infrastructure, performance, scalability, and customer satisfaction, with collaboration across Product, Engineering, Sales, and Customer...

Robinhood Markets, Inc. is seeking a Staff Software Engineer for the Backend Platform in Toronto. You will set technical direction and lead multi-team initiatives to improve how backend systems are developed and operated, guiding adoption of platform capabilities and developer tooling.This role focuses on scalable, reliable systems and mentorship across...

Spin Master Hapiko is seeking a Backend Engineer to own the API, job queues, and real-time layer for a global sticker-printer product. You will scale and harden the backend, ensure fast, safe, and affordable operations as Hapiko grows, and own end-to-end server-side services. You will collaborate with firmware, ML Serving, and Trust Safety teams to maintain...

DoorDash is seeking experienced product engineers to join our backend and infrastructure team. You’ll own and evolve large-scale web applications, define the backend architecture for product areas, and drive improvements in performance, reliability, and security. You will contribute to moving from monoliths to microservices while solving cutting-edge...

A digital transformation firm in Canada is seeking a Senior System Engineer to support clients with implementation projects across North America. The role demands experience in designing and deploying technical services, along with outstanding communication skills. Candidates should have a Bachelor’s degree and proficiency in various scripting and...

Camunda is seeking a Backend Software Engineer for the Data Layer team to shape the storage and query layer powering Camunda 8’s process data. You’ll work across relational databases and Elasticsearch/OpenSearch to ensure fast, accurate data access at scale.You’ll collaborate with product, design, QA, and support to influence how the data layer evolves...

Affirma is hiring for a backend-focused role focused on designing, developing, and launching scalable backend systems. You will work with Python or Kotlin, contribute to a large codebase, and participate in code reviews to maintain high quality.You will collaborate with teams and stakeholders, taking ownership of growth opportunities and balancing speed with...

Capgemini Engineering Canada is seeking an experienced AI Infrastructure Engineer to design, deploy, and manage scalable AI/ML infrastructure on AWS. You will work with Trainium and Inferentia accelerators, SageMaker, and Kubernetes to support distributed training, inference, and deployment of large language models and generative AI features.Responsibilities...

An innovative startup at the forefront of the GenAI revolution is seeking a Senior Infrastructure Engineer to join their dynamic team in Toronto. This role involves leading the design and development of cutting-edge recommendation systems that enhance content distribution for creators. With a rapidly growing app loved by millions, you will tackle exciting...

A leading streaming service in Toronto is looking for a Senior Software Engineer specializing in Rust. In this role, you will lead the development of backend services and tools, focusing on high-performance system architecture. Candidates should have at least 4 years of software development experience, particularly with Rust, and be enthusiastic about...

Docebo, a leader in AI-powered learning platforms, is seeking a backend engineer to architect, build, and scale enterprise-grade systems in Go and PHP. You will mentor teammates, drive multi-sprint initiatives, and partner with Product and Design to shape the roadmap while ensuring high performance and reliability.You will work within a hybrid model,...

DoorDash is seeking experienced product engineers to join our backend and infrastructure team. You’ll own and evolve large-scale web applications, define the backend architecture for product areas, and drive improvements in performance, reliability, and security. You will contribute to moving from monoliths to microservices while solving cutting-edge...

Alignerr is seeking a Back End Developer to design, build, and optimize server-side systems and APIs that power AI products, from data pipelines to scalable microservices handling real-world traffic.This is a fully remote hourly contract open to engineers in Montreal and across Canada. You’ll collaborate with researchers and product leads, write clean,...

Overview The Backend Engineer on the AI Platform team plays a critical role in building and evolving the backend systems that power internal products, customer-facing capabilities, AI-enabled workflows, and operational decision-making across the organization. This role is responsible for designing, building, testing, and operating reliable, scalable, and...

Overview: The Backend Engineer on the AI Platform team plays a critical role in building and evolving backend systems that power internal products, customer-facing capabilities, AI-enabled workflows, and operational decision-making across the organization. This role is responsible for designing, building, testing, and operating reliable, scalable, and...

Job Title Backend Engineer Python (API & Platform Engineering) Location Toronto, Ontario (Onsite) Experience 5-10+ years Role Overview We are seeking a skilled Python Backend Engineer to build and scale high-performance backend systems. This role focuses on API development, platform engineering, and system design for enterprise‑grade, secure, and scalable...

Remote Backend Engineer needed to build scalable APIs, develop new features, and mentor others in a collaborative engineering environment.