java backend engineer jobs in Toronto

Build real-time sports data systems at Betstamp in Toronto using Go, ClickHouse, and AI-enabled development practices. Work across backend infrastructure where market accuracy matters. As a Backend Engineer, you will maintain and improve systems tracking odds across sportsbooks, exchanges, and prediction markets. The work spans REST APIs, sportsbook...

Shape Forma.ai’s Spark-based data platform through backend architecture, data modeling, and reliable systems development. This staff-level role carries broad technical ownership. Reporting to the Manager of Data Platform, you will lead complex platform features and model hierarchical, graph-like, and enterprise data. The work spans backend services, SQL,...

About Us:Based in San Francisco, California, Turing is the world’s leading research accelerator for frontier AI labs and a trusted partner for global enterprises deploying advanced AI systems. Turing supports customers in two ways: first, by accelerating frontier research with high-quality data, advanced training pipelines, plus top AI researchers who...

Build RESTful APIs with Java and Oracle ADF BC REST at CMiC on York University’s Toronto campus. Apply object-oriented programming and SQL skills.As a Software Engineer, you will support CMiC’s front-end applications through API development. The work includes Java, Jersey, J2EE, REST over HTTP, and database-level development using SQL and PL/SQL. You...

Apply Java web application programming and database expertise as a Senior Full Stack Software Developer with office work at 5700 Yonge St. This senior position calls for 10+ years of experience building working, tested applications from technical specifications. The role combines Java technologies, REST and SOAP web services, Oracle and SQL Server...

Software Engineer (Java, Python & Linux) Location: Mississauga, ON Experience: 5+ Years Position: Sub-contractor Job Description We are looking for an experienced Software Engineer with strong hands-on expertise in Java, Python, Linux, and CI/CD to join a dynamic DevSecOps team supporting a large-scale, highly available distributed payment system. The ideal...

At Affim, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most.The Streaming team at Affim is responsible for all things data and drives the strategy for event driven architecture, stream processing, data exploration, discovery and validation....

Join us in building the future of finance. Our mission is to democratize finance for all. An estimated $124 trillion of assets will be inherited by younger generations in the next two decades. The largest transfer of wealth in human history. If you’re ready to be at the epicenter of this historic cultural and financial shift, keep reading.About the team +...

At Affrim, we exist for the moments that matter—giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. The Observability team builds the platform every Affrim engineer relies on to understand the behavior and performance of our systems. Our platform ingests 200+ TB/day of metrics,...

Secure Every Identity, from AI to Human. Identity is the key to unlocking the potential of AI. Okta secures AI by building a 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...

Build reliable software for thousands of customers using server-side technologies, APIs, and scalable systems in a weekly agile release cycle. This Senior Software Engineer position focuses on highly reliable, mission-critical software and individual ownership. You will apply engineering principles across caching, process and asynchronous processing, while...

Elevate location search technology with Uber Maps as a Staff Software Engineer. Lead critical backend services and scalable systems while collaborating across teams in a dynamic environment.In this impactful role, you will set the technical direction for high-stakes Maps Search projects, from initial problem definition to full production delivery. You'll...

Build reliable AI infrastructure with Python and distributed systems at Lydia AI, working hybrid in Toronto to advance ORCA's platform. As a Senior Backend and AI Platform Engineer, you will improve ORCA's execution architecture and establish AI-native engineering practices. You will design backend services, APIs, asynchronous workflows, and secure...

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 while...

Build high-throughput tax systems at Coinbase, focusing on distributed services and data pipelines where correctness is critical. Work remotely with quarterly surges.As a Senior Software Engineer on the Tax team, you will support Coinbase Consumer & Business products. Your work covers cost basis tracking, gain/loss calculation, withholding automation, and...

Excel as a Staff Backend Software Engineer at Motion, focusing on API design and backend services. Use your skills in Node, TypeScript, and MongoDB to influence company-wide operations. Join Motion's Platform team to develop and enhance high-quality backend solutions that cater to diverse product lines. You will collaborate closely with engineers to deliver...

Drive innovation as a Senior Backend Engineer with Jonas Software, specializing in AI-first solutions. Embrace remote work to design and implement core backend systems in C#/.NET. In this pivotal role, you’ll shape a new SaaS application from the ground up. Seeking a seasoned engineer with expertise in Event Sourcing, CQRS, and Domain-Driven Design (DDD)....

DoorDash Canada is seeking Backend Engineers to join our hybrid Toronto team, focusing on scalable web applications and backend architecture. You will work across Product and Platform teams, contribute to performance, security, and transitioning to microservices, and collaborate with cross-functional partners to deliver impactful solutions. Ideal candidates...

Elevate your career as a Staff Backend Engineer with DoorDash in Toronto, ON. Lead the architectural strategy for a powerful notification system designed for massive scalability and intelligent personalization. This role emphasizes technical leadership and a strong grasp of distributed systems. Your focus will be on driving the roadmap for the Notification...

Build Go backend services for ACV Auctions’ SaaS product, using AWS, Postgres, NoSQL, and Kafka-based event processing. This role supports the ACV Retail - Viper Teams. ACV Auctions seeks a Software Engineer with at least eight years building SaaS web applications. You will architect enterprise systems, maintain existing codebases, and develop services...