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Senior Backend Engineer, Licensing
Senior backend engineer on Horizon3's Licensing, Usage & Entitlements team, building the APIs and services that define NodeZero customers' purchases, enabled capabilities, and usage limits. Backend work in Python/Go with PostgreSQL, GraphQL, AWS, Docker/Kubernetes, and event-driven tooling like Kafka and Temporal.
Senior Backend Engineer
Senior Backend Engineer at a venture-backed insurtech AI startup: builds Python/AWS backend services, data models, async pipelines, LLM-based document-processing systems, and external-facing APIs that power insurers' workflows, plus a central evals framework. Remote-first, HQ in New York; NY/SF pay range $213k–$246k.
Senior Backend Engineer - Production AI (Python/Go)
Senior backend engineer at Owen Thomas B Corp in London who owns and scales AI-driven backend systems in production, working across architecture, AI infrastructure and end-to-end product delivery using Python or Go in a small, autonomous team.
Senior Backend Engineer, Cloud Monetization (Remote)
Senior Backend Engineer on Nebius's Cloud Monetization Platform team, building the billing-like system that tracks GPU hours, storage and payments for its AI cloud. Day to day: designing scalable Python microservices and distributed/async workflows; based in Amsterdam or remote.
Senior Backend Engineer - Cloud Infra (Golang) | Hybrid/Remote
Nebius Group is hiring a Senior Backend Engineer to build fault-tolerant, scalable cloud services for its cloud platform, primarily in Golang with Java and Python exposure, supporting a global AI ecosystem. The role is hybrid or remote from Amsterdam, Prague, London, Tel Aviv, or Berlin and requires 5+ years of engineering experience.
Senior Backend Engineer (opens in a new tab) Germany
Senior backend engineer at Nebius building fault-tolerant cloud services for its AI-focused cloud platform — managed Kubernetes, databases, billing, monitoring and ML services. Work is mostly in Go with some Java/Python, hybrid or remote from offices in Prague, Amsterdam, London, Tel Aviv or Berlin.
Senior Backend Engineer - Java/Kotlin Microservices
Senior backend engineer at NS (Dutch Railways) in Utrecht, working in a DevOps team on the business-critical Donna application that manages train timetables. Day to day: contributing to architecture, writing scalable code, and delivering functionality in 2-week sprints using Kotlin/Java, Spring Boot, Kubernetes and CI tools.
Senior Backend Engineer (opens in a new tab) United Kingdom
Senior Backend Engineer at Nebius building its full-stack AI cloud platform, developing fault-tolerant cloud services such as managed databases, managed Kubernetes, billing, monitoring and ML services. Mostly Golang with some Java/Python; hybrid or remote from offices in Prague, Berlin, London or Amsterdam.
Senior Backend Engineer | Java Spring Boot & Microservices
Senior Backend Engineer at Nederlandse Spoorwegen (Dutch Railways) working on Donna, the application behind railway timetables, while modernizing the planning system for the Dutch rail network. Day to day: designing distributed solutions, building Java Spring Boot microservices in the movement domain, and owning DevOps from build to monitoring.
Senior PHP Backend Engineer - Hybrid (Fintech, Scale)
Senior PHP backend engineer at i-linked building new features and modernizing a fully self-developed payments platform to ensure scalability and security. Core stack: PHP, Symfony, Docker, and Kafka; hybrid work from the Netherlands.
Senior Backend Engineer - Go Cloud Services (Hybrid)
Senior Backend Engineer at Nebius building fault-tolerant cloud services (infrastructure, databases, Kubernetes, billing, monitoring) for the company's hyperscaling AI cloud platform, primarily in Go with some Java/Python; based in Amsterdam with hybrid or remote options.
Senior Backend Engineer - Distributed Microservices
Senior Backend Developer at 1UPPLY in Utrecht working on Donna, a business-critical scheduling application in the rail movement domain. Day to day: designing and building distributed microservices with a Scrum team and owning the DevOps cycle — building, testing, deploying, and monitoring services.
Senior Backend Developer bij de DSO-team Hecate
Senior backend developer on the DSO team Hecate, working on Donna — the mission-critical system that creates train timetables for all Dutch rail carriers. You design distributed microservices in Java 17/Spring Boot on OpenShift and own the full DevOps cycle; excellent written and spoken Dutch is required.
Senior Backend Developer bij de DSO-team Hecate
Senior backend developer (contract until 30-11-2028, max €98/hr) on NS Dutch Railways' DSO team Hecate in Utrecht, modernizing Donna, the critical system that plans timetables for all Dutch trains. Day to day you design, build, deploy and monitor Java/Kotlin Spring Boot microservices in a DevOps Scrum team.
Senior Backend Developer bij de DSO-team Hecate
Senior backend developer on NS's DSO team Hecate in Utrecht, modernizing the Donna train-scheduling system by breaking a 1.6M-line Java monolith into microservices. You design and build distributed Spring Boot/Kotlin services and deploy and monitor them on OpenShift in a 2-week Scrum/DevOps cycle.