Senior Backend Architect

Proton is looking for an experienced backend-focused engineer to join The Foundation Team in Barcelona. You will work with PHP for API-related work and Rust for performance-critical components, owning libraries end-to-end from design to migration. You will help define architectural boundaries in a large monorepo, collaborate across product teams, and drive...

A fast-growing global programmatic exchange is seeking a Senior Scala Developer to design, implement, and maintain highly scalable backend services. The ideal candidate has solid hands-on experience with Scala and proficiency in SQL databases, particularly PostgreSQL. The role involves collaborating with cross-functional teams and contributing to system...

Commit ищет опытного backend-разработчика для разработки и поддержки масштабируемых сервисов на Python в рамках архитектуры микросервисов. Вы будете проектировать и разворачивать облачные приложения на...

Biorce ищетSenior Backend Developer (Delta Team) в Барселоне. Вы будете владеть основными backend-сервисами и API, работать над интеграциями в GTM-стеке и разворачивать функции на базе LLM. Ваша экспертиза Node.js/NestJS, TypeScript и...

Factorial HR is seeking a Senior Software Engineer to lead backend development in the Data Ops team. You will architect and implement scalable backend systems, integrate global payment platforms like Stripe or Adyen, and drive AI-assisted development inside a fast‑growing fintech SaaS environment.You will work closely with design and product squads to...

Biorce, a Healthtech innovator, is seeking a Senior Backend Developer (Delta Team) to build and scale our internal software infrastructure from Barcelona. You will own Leadro’s backend, APIs, and data flow, while integrating with GTM tools and external systems. The role demands ownership, architecture, and mentorship to drive fast, reliable delivery. The...

Virtual Cave busca un Backend Architect para unirse al equipo en modalidad 100% remota. Diseñarás, construirás y Mantendrás la infraestructura del servidor, garantizando escalabilidad, seguridad y rendimiento en proyectos innovadores. Se valorará experiencia en microservicios, CQRS, Event Sourcing, y conocimiento en bases de datos SQL/NoSQL, así como...

Expereo International is seeking a Backend Developer to join the Supplier onboarding and Quote Management teams. You will work on the core platform, writing Python and/or .NET, building services, and implementing a constraint optimization engine for quotes.You will integrate partner data, maintain internal tools, and ensure auditable, explainable outputs for...

As a Software Solutions Architect, you will architect client infrastructure, provide multi-technology advice, and ensure IT infrastructure software is optimized and compliant. You will design high-level structures and analyze business requirements.