backend engineer ruby

Artificial Intelligence. Actual Impact. At Docebo, we’re using AI to change how people learn at work—and we mean actually change it. We’re an AI-powered learning platform that helps organizations create, deliver, and manage training all in one place. But our real mission goes deeper: we help teams move faster, work smarter, and focus on the work that...

Build Elastic Cloud offerings through backend engineering, technical design, and sophisticated debugging with Scala, Java, or Go. Work within a globally distributed team of engineers. This Senior Software Engineer role supports Elastic’s Control Plane - Hosted team and key functional areas of its Cloud offerings. You will analyze system strengths and...

Design financial APIs at Jeeves using Go, Python, or Node.js/TypeScript while working remotely or hybrid, depending on location and department. As a Senior Backend Engineer, you will build production systems for payments, cards, spend management, and compliance. You will support customers across more than 20 countries. The work includes RESTful and GraphQL...

Build AI platform services at Affirm using Python or Kotlin, designing reliable backend systems for production workloads at scale. Work remotely within your home country. As a Senior Backend Software Engineer, you will own technical decisions across the AI Platform team. You will build governed interfaces for models, tools, and agents while supporting...

Build Authentication as a Service at eBay with Java, Spring Boot, REST, and cloud infrastructure expertise. Work on scalable backend systems. As a Senior Software Engineer, you will develop production-grade backend services for authentication workflows. You will shape architecture, infrastructure, and deployment foundations for a reusable platform extending...

At eBay, we're more than a global ecommerce leader — we’re changing the way the world shops and sells. Our platform empowers millions of buyers and sellers in more than 190 markets around the world. We’re committed to pushing boundaries and leaving our mark as we reinvent the future of ecommerce for enthusiasts. Our customers are our compass,...

Build secure, scalable backend infrastructure at LotusFlare, using distributed systems expertise to support millions of concurrent API calls globally. As a Senior Backend Engineer, you will develop, secure, and scale mission-critical systems for LotusFlare’s DNO Cloud platform. You will own software from development through production maintenance, while...

HHHub.eu, a FinTech software provider with over 25 years of experience, seeks a Senior .NET Engineer – Banking & Payments to design and develop backend systems for core banking, account management, and payment processing. You will contribute across the software lifecycle, mentor peers, and participate in architecture discussions, code reviews, and CI/CD...

Build AI Platform services remotely from Canada using Python or Kotlin, distributed systems expertise, and production LLM experience. Support affirm’s global infrastructure. As a Senior Software Engineer, Backend, you will design and launch governed AI systems for affirm engineers and production workloads. You will work with AWS, MySQL, Kubernetes, LLM...

Power AI training and inference with model-serving infrastructure, data pipelines, and high-performance APIs through Alignerr’s remote hourly contract. Work flexibly.As a Back End Developer at Alignerr, you will build server-side systems that support AI products and real-world traffic at scale. The work includes scalable microservices, performance...

Build high-scale backend data services at Akamai using Python, Java, or Go with hands-on development across Cloud Data Services. Work within a global engineering team.As a Senior II Software Engineer, you will design and scale backend services, APIs, microservices, and distributed systems. You will balance technical oversight with development, clarify...

Ready to be pushed beyond what you think you’re capable of?At Coinbase, our mission is to increase economic freedom in the world. It’s a massive, ambitious opportunity that demands the best of us, every day, as we build the emerging onchain platform — and with it, the future global financial system.To achieve our mission, we’re seeking a very...

Transform financial technology as a Backend Software Engineer on Robinhood’s elite Web3 team in Toronto. Build innovative backend services that elevate the trading experience for cryptocurrencies and tokenized assets. This role at Robinhood demands strong problem-solving skills and an ownership mindset. You will create and maintain scalable systems for...

Build secure backend systems in Python and Rust for AuraNet from Ottawa or Toronto, supporting real-time data across disconnected environments.As a Senior Software Engineer Backend, you will design distributed systems for Dominion Dynamics’ mesh networking platform. The work spans networking, security, containers, and autonomous platforms. You will own an...

Who we are:Sardine is the leading agentic risk platform for fighting financial crime. Our integrated solution unifies data across risk teams to help organizations stop fraud in real time, prevent AI-driven attacks, and automate fraud and AML operations. Sardine’s platform is strengthened by one of the fastest-growing fraud consortiums in the market,...

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)....

Build high-performance financial services at Bitvavo using Kotlin, Kafka, and event-driven microservices architecture. This engineering role supports digital asset trading platforms. As a Senior Backend Engineer, you will craft high-quality software for Bitvavo customers and financial markets. You will tackle technical challenges, influence technology...

At Affi, 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 Affi is responsible for all things data and drives the strategy for event driven architecture, stream processing, data exploration, discovery and validation. We...

A payment technology leader is seeking a Senior Software Engineer to join their fully remote team. This role focuses primarily on backend development, maintaining and enhancing payment processing systems while collaborating with various teams. The ideal candidate should have over 5 years of software development experience, strong skills in API design and...

Build scalable campaign infrastructure remotely from Canada using Python or Ruby, distributed systems expertise, and modern backend engineering practices.This Senior Backend Developer joins the Campaigns Team within a collaborative engineering group. You will develop large-scale backend applications supporting personalized, multi-channel marketing campaigns....