backend engineer ruby jobs in Ottawa

Elevate AI performance at Wealthsimple as a Senior LLM Infrastructure Engineer. Design systems that enhance AI initiatives and ensure efficient high-performance model serving.This role within the Machine Learning Infrastructure team allows you to be at the forefront of AI technology. Collaborate with skilled professionals to create scalable architectures and...

TRM Labs is seeking a Senior or Staff Software Engineer, Data Platform to join our Canada team working remotely. You will architect and build scalable data infrastructure, integrate with multiple blockchains, and partner with data scientists, backend engineers and product managers.You'll design data models, develop ETL pipelines, and ensure sub-second query...

Chubb Canada is seeking a Senior Full-Stack Engineer for its AI Platform. This hands-on role spans React/Angular frontend, NestJS middleware, and Python FastAPI backends, delivering production-grade features for AI-powered workflows and RAG-based search.You will drive architectural decisions and maintain code quality across four repositories. You will...

Job Title: Sr. QA Automation Engineer Location: Canada (Remote) Employment Type: Contract Job Summary We are looking for a skilled QA Automation Engineer to design, develop, and maintain automated test frameworks and scripts to ensure high-quality software delivery. The ideal candidate will work closely with developers, product owners, and DevOps...

At Shakepay, we're on a mission to usher in the Bitcoin golden age. We're reimagining financial services to give every Canadian their fair shake. Our culture is built around doing work that matters, winning as a team, and celebrating success. If you're the kind of person who values growth, shipping fast, and sharing your ideas openly with a group of...

Testlify is on the lookout for a skilled AI & ML Solutions Engineer to design, build, and deploy cutting-edge AI applications for business needs. This role emphasizes integrating advanced AI models into practical solutions.You will focus on creating scalable AI-driven solutions for enterprise levels, working closely with other teams to implement LLMs in web...

It's 1813 and Humphrey Davy is dazzling London with scientific demonstrations and lectures. Soon enters the young bookbinder, Michael Faraday, dissatisfied with his own prospects and enamored by the mysteries of electricity. Faraday gets a break and gains an apprenticeship with Davy, and shortly thereafter (partially) blows himself and Davy up in a nitrogen...

About The TeamOur Machine Learning Platform sits at the heart of an ecosystem with over 200 million pieces of content, more than 200 million unique visitors each month, and empowering 2 million paying subscribers across the globe. With content available in over 20 languages, our platform presents unparalleled opportunities and challenges for AI innovation....

It's 1813 and Humphrey Davy is dazzling London with scientific demonstrations and lectures. Faraday gets a break and gains an apprenticeship with Davy, and shortly thereafter (partially) blows himself and Davy up in a nitrogen trichloride explosion. We think Davy's sacrifice was worth it, though, since Faraday went on to do experimental work in the field...

Shape the future of an advanced self-service advertising platform as a Lead Front End Engineer in Canada. Direct the technical strategy and mentor teams while tackling complex engineering challenges.This senior engineering role emphasizes frontend leadership for a sophisticated advertising platform utilized by brands and agencies. You will collaborate with...

Become a pivotal part of Fable's mission as a Senior Software Engineer, specializing in AI and full-stack development. Your technical expertise will be essential in creating accessible solutions for customers worldwide.In this role, you will harness your backend and full-stack development skills to design and implement AI-driven applications at Fable. Engage...

Who we areAt Twilio, we're shaping the future of communications, all from the comfort of our homes. We deliver innovative solutions to hundreds of thousands of businesses and empower millions of developers worldwide to craft personalized customer experiences.Our dedication to remote-first work, and strong culture of connection and global inclusion means that...

Chainguard is the trusted source for open source. This Staff Software Engineer role focuses on building and operating Chainguard's malware detection platform, ensuring reliable artifacts for customers and scalable, high-throughput pipelines.You will own architecture, scale, and reliability, collaborating with Product Security to translate threat research...

Nesto Cloud is seeking a passionate Team Lead, Platform to guide the Internal Developer Platform and cloud infrastructure. You will mentor a team of platform engineers, shape IDP, and partner with product and backend teams to deliver scalable, secure pipelines on Kubernetes.Responsibilities include driving CI/CD with GitHub Actions, Pulumi/Crossplane, and...

Quest Software is seeking an experienced AI Software Engineer to advance AI-first software development for a cloud-native SaaS product on Azure. You will blend C#/.NET backend expertise with hands-on AI tooling to accelerate development, quality, and test coverage while shaping reusable AI workflows.You will design prompts, guardrails, and workflows,...

MaintainX is seeking an experienced Platform Engineer to design and operate a production-grade search and retrieval platform. You will model search across assets and work orders, ensuring highly relevant results while collaborating with product and domain experts.You will own end-to-end indexing, query execution, and AI-enhanced relevance, advancing semantic...

Join Lithic's Treasury team in a remote Software Engineer position that emphasizes building robust financial infrastructures using Python. Your work will directly impact the future of payments.At Lithic, we are hiring Software Engineers at various levels for our Treasury team. In this role, you will manage backend services critical for fund flows and ledger...

Confluent Inc in Canada seeks a Senior Software Engineer—Streaming AI to design and operate large-scale real-time AI infrastructure on streaming data. You'll own in-place, at-scale serving layers and work across teams to deliver reliable, cost-efficient AI capabilities.Bring 2–5 years of backend experience, strong fundamentals in distributed systems and...

About CoVetAt CoVet, we're building AI-powered tools that help veterinary professionals spend less time on paperwork and more time caring for animals.Veterinary teams are stretched thin. Long hours, administrative burden, and burnout are challenges across the industry. We're on a mission to change that. Our AI copilot helps veterinary professionals save...

Ready to do the most impactful work of your career? At Coinbase, we are uncompromising on our mission to increase economic freedom. The bar is high, the environment is intense, and we like it that way. This isn't a place for complacency, it's a place to be pushed past your perceived limits. If you're ready to build the future of finance alongside people who...