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Senior backend engineer at DFYNE working on product platforms: building and operating large-scale production systems and APIs. Core stack includes TypeScript or Python, distributed systems, relational databases, and cloud environments (ideally Google Cloud Platform), based onsite in Uddingston, UK.
Backend engineer building scalable Python services, backend APIs, and data integrations for data and AI product engineering, working with Product and Frontend teams. Role sits on a Madrid-based team with remote work options and quarterly office weeks in Vienna.
Softtek is hiring a Senior Backend Engineer in Madrid (hybrid) to build large-scale systems with Java 17/21, Spring Boot microservices and REST APIs, using Kafka, MongoDB and PostgreSQL. The role emphasizes code quality, continuous improvement, and offers internal mobility and benefits.
Senior Python developer joining an engineering team at Capitole to build scalable backend applications and high-performance distributed systems, taking part in architecture decisions alongside product, data and infrastructure teams. Core stack: Python microservices, REST/GraphQL APIs, Airflow, PostgreSQL/ClickHouse/MongoDB, Kafka/RabbitMQ/Redis/Celery, Docker and CI/CD.
Backend/ERP developer (Barcelona) who leads customization and scaling of a Microsoft D365 F&O ERP system for a B2B commerce company, manages delivery with SCRUM/Kanban, and drives CI/CD, automated testing, and version control. Core stack: X++, .NET, and Power Platform.
Develop and maintain backend services and big data pipelines using Python, FastAPI, and Apache Spark. The role involves building scalable APIs, working with MongoDB, and optimizing data transformations within a hybrid work model in Barcelona.
Backend lead role at Enfint in Barcelona: the person drives technical direction, architecture and engineering standards across several live software products, while managing and mentoring a small backend team hands-on. Core stack is Kotlin and/or Python on AWS, with a focus on integrating AI and automation into the products.
Backend developer who owns the Node.js/TypeScript back office of a healthcare product connecting patients, insurers and doctors, integrating external insurance APIs and SSO, with automated/manual testing in a small autonomous Madrid-based team (hybrid, 2 office days).
Backend developer at Aicox Soluciones' software development team in Madrid, building performance-focused, real-time systems for an important project. Core work involves SQL relational databases, MQTT and WebSockets protocols, and concurrent app development, with Next.js/React experience valued.
Backend developer at TECDATA Engineering in Madrid, working on a stable, demanding project: building and maintaining SOA/REST backend services, resolving incidents and delivering enhancements, and integrating with various systems.
Backend developer in Madrid building and maintaining SOA/REST services: developing new features, resolving incidents, integrating with other systems, and collaborating with frontend teams across the full development lifecycle while applying good coding and quality practices.
Python backend developer at Indra Group in Madrid, joining a technical team that designs, develops and maintains software solutions with a focus on backend services and REST API evolution. The role calls for 2-3 years of experience with OOP, SQL databases, Git and testing practices on national and international projects.
PancakeSwap is hiring a Senior Backend Engineer in Hong Kong to design, build, and maintain scalable backend microservices for its DeFi platform. Day-to-day work includes integrating DeFi protocols, building secure APIs, and deploying containerized services on cloud platforms and Kubernetes for high concurrency and reliability.
Senior backend engineer on Scout Motors' Aftersales digital products team, designing and building scalable services (SSO/identity, apps, vehicle connectivity, servicing systems) from concept to deployment while mentoring engineers and sharing 24/7 on-call. Stack includes Go (preferred), Node.js/Python/Java/Ruby, PostgreSQL/Redis, identity platforms, and AWS; hybrid role based in Fremont, CA.
Junior backend/systems engineer working onsite in Schiller Park, IL, designing, implementing, and optimizing low-level application architecture, networking protocols, and performance-critical systems using C++ and Python.
Senior backend developer (Kotlin/Java, Spring Boot) building features and integration services for a mature, Europe-wide land-logistics platform of ~130 microservices. Work spans REST, SOAP, JMS, SFTP and Kafka integrations, performance/reliability tuning, testing, and Scrum/Kanban collaboration — 100% remote.
Senior backend developer designing and building scalable, API-driven microservices for an international client project, engaged via 1dea on a fully remote B2B basis. Core stack: Java 17+, Kotlin, Spring Boot/WebFlux, Vert.x, Hibernate, distributed systems integration, with AS4/B2B integration as a plus.
100% remote senior backend/data developer role contracted via 1dea (B2B) for a client project: designing backend solutions, data models, and query/performance optimization across MongoDB, PostgreSQL, Virtuoso Triple Store, and OpenSearch. Full-time, long-term, 130–155 PLN net/hour.
ACL (posted via PubliPega) seeks a backend developer to design, develop, and maintain microservices and REST APIs on a 3-month, extendable, fully remote project for Chile and LATAM. Core stack: Java, Spring Boot, REST, JSON, and Oracle DB, with possible Node.js assignments.
Backend .NET developer at a Chilean tech company, working on challenging development, integration and automation (BPM/AI) projects. Day to day is C#/ASP.NET backend work with SQL Server, in a hybrid schedule (3 days onsite, 2 remote) based in Santiago.
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