Senior Software Engineer
hace 1 semana
We are hiring a Senior Software Engineer for a fixed-term contract ending in June 2026, based in Barcelona or Zaragoza with a hybrid working model. This role is with a leading European deep-tech company working at the intersection of AI, machine learning, and advanced computing. You will collaborate with world-class engineers and researchers to industrialize cutting-edge technologies and deliver solutions to large enterprise and public-sector customers. What is offered: Competitive annual salary, depending on experience and qualifications Signing bonus upon joining and a retention bonus at contract completion Relocation support if applicable Fixed-term contract until June 2026 Hybrid working model with flexible hours International, highly technical environment within a fast-scaling Series B company Role responsibilities: Develop, deploy, and maintain production-grade software systems across frontend and backend Work closely with software, DevOps, ML, and research teams to industrialize core technologies Contribute to high-impact projects for large enterprise and government customers Take ownership of system design, APIs, and application workflows Maintain high engineering standards through testing, documentation, and clean code practices Required experience: Bachelor’s degree or higher in Computer Science, Engineering, or equivalent industry experience Strong expertise in Python; additional experience with Rust or C/C++ is a plus Experience level aligned with junior (1–2 years), mid (3+ years), or senior (5+ years) profiles Experience in frontend and backend development Proficiency with TypeScript and frameworks such as Flask or FastAPI Experience deploying software in cloud environments such as AWS Strong knowledge of Git and CI/CD pipelines Excellent communication skills and ability to collaborate across disciplines Preferred experience: Hands-on experience working with LLMs and related tools (HuggingFace, OpenAI APIs, vector databases) Experience with distributed systems or frameworks such as Ray or Spark Experience working in cross-functional teams and designing scalable software architectures This is a fixed-term contract role ending in June 2026.
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Senior Software Engineer
hace 2 días
Castro e Marzán, España CIS Electronics Engineering A tiempo completoFreelance Project Opportunity – Senior Software Engineer (Madrid, Hybrid) We are looking for a Senior Software Engineer to join a 6‐month freelance project in Madrid. This is a hybrid role with regular on‐site work required. Key Skills & Experience: Strong background in C/C++ development for embedded systems Proficiency in Linux Experience in software...
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Senior Software Engineer .NET
hace 3 semanas
Castro e Marzán, España Voiping US A tiempo completo🚀 Buscamos Senior Software Engineer .NET / React – 100% Remoto o Tarragona/BarcelonaEn VOIPING estamos ampliando equipo con 4 Senior Software Engineers .NET / React para dos proyectos estratégicos🧩 Qué harásFormar parte de un equipo Agile y participar en los eventos Scrum.Analizar y resolver problemas complejos definidos por el equipo de...
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Castro e Marzán, España Xebia A tiempo completoAbout Xebia With over 20 years of experience, our global network of passionate technologists and pioneering craftsmen deliver cutting-edge technology and game-changing consulting to companies on the brink of transformation. Since 2001, we have grown from a Java company into a full-service digital consulting company with 5,500+ professionals working on a...
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Senior Software Engineer – Golang Development
hace 2 días
Castro e Marzán, España Xebia A tiempo completoAbout Xebia With over 20 years of experience, our global network of passionate technologists and pioneering craftsmen deliver cutting-edge technology and game-changing consulting to companies on the brink of transformation. Since 2001, we have grown from a Java company into a full-service digital consulting company with 5,500+ professionals working on a...
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Senior Software Engineer
hace 2 días
Castro e Marzán, España Ocho A tiempo completoFully remoteMultiple Engineering Roles (Engineer → Principal) | Backend Java or .NET | Fully Remote in SpainOcho is proud to be partnering with a fast-growing US payments company to help expand their world-class engineering team. We're hiring backend engineers at all levels—from mid-level to principal—to build high-scale, secure, and innovative payment...
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Senior Java Software Engineer
hace 3 semanas
Castro e Marzán, España Coforge A tiempo completoRole: Java EngineerLocation: Remote (person must be based in Spain, Poland or Portugal)Role Type: PermanentLanguages: English C1Requirement: Must be based in Spain, Portugal or PolandExperience: 10+ years | 🧑 💻 Full-time | 💼 Engineering Support TeamAt Coforge, we are looking to hire a Java Tech Lead / Staff / Principal Engineer with the following...
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Senior Software Engineer
hace 2 semanas
Castro e Marzán, España Xebia A tiempo completoAbout XebiaWith over 20 years of experience, our global network of passionate technologists and pioneering craftsmen deliver cutting-edge technology and game-changing consulting to companies on the brink of transformation. Since 2001, we have grown from a Java company into a full-service digital consulting company with 5,500+ professionals working on a...
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Senior Golang Engineer
hace 3 semanas
Castro e Marzán, España RE Partners A tiempo completoWe are seeking a dedicated, motivated, and reliable Senior Golang Engineer who is interested in providing innovative software solutions for our clients. Be a part of our team as we continue to deliver high quality products and services. The Senior Go Engineer will be responsible for building backend services in Go in EKS, as well as some Lambdas. The overall...
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Senior Frontend Engineer
hace 2 semanas
Castro e Marzán, España Connect Vision International A tiempo completoWe are looking for an experienced Senior Frontend Engineer with strong Vue.js to join one of our clients on a 6-month fully remote contract. Senior Frontend Engineer (Vue.js) Location: Fully remote Start date: January 2026 Contract: 6 - 12 months + extensions (Long-term project) Rate: €25–30/hour Languages: English & Spanish Requirements: +6 years of...
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Staff/Senior Software Engineer
hace 2 días
Castro e Marzán, España Ledgy A tiempo completoAt Ledgy, we're on a mission to make Europe a powerhouse of entrepreneurship by building a modern, tech-driven equity management and financial reporting platform for private and public companies. In 2025, we aim to be the leading provider for European IPOs and reporting for share-based payments. We are a value-based company with a core focus on being humble,...