Empleos de remote fullstack engineer en Sevilla

Your final hourly rate will be chosen by our client and determined by your location. We’re looking for two freelancers with strong expertise in Finite Element Analysis (FEA) using CalculiX, covering stress analysis, buckling, and vibration simulations. Experience applying the software across different engineering contexts is preferred. You will review and...

Jobgether in Spain is seeking a Backend Engineer, Solving to build core systems powering cross-chain transactions, including quotes, routing, and settlement across on-chain and off-chain liquidity. You will work mainly with TypeScript and Node.Js on DeFi infrastructure, integrating with major DEXs and collaborating with protocol engineers.This high-impact...

Synthires is seeking a highly skilled ML Engineer (MSc or PhD) for a remote, contractor role. You will develop and optimize machine learning models, training pipelines, and inference systems, with a focus on Python, reproducible workflows, and coding agents.This part-time engagement (~15 hours/week) offers flexible scheduling and output-based pay, with...

intro is partnering with a major international fintech to recruit a Senior Security Engineer. You will shape security architecture across multi-cloud environments, driving AI-enabled threat detection, security automation and zero-trust principles. You’ll own cloud security design, threat monitoring, and secure-by-design engineering, collaborating with...

MS Shift, Inc. is seeking an experienced AI Developer to design, build, and integrate AI-powered features into our software platform. The ideal candidate brings strong software development experience and hands-on work with LLMs, AI agents, APIs, and modern AI frameworks. This is a hands-on role for turning AI concepts into production, collaborating with...

Gilytics AG is seeking a Solution Engineer to bridge engineering and GIS data teams with customer-facing functions. This role turns Pathfinder’s capabilities into live demos and trusted technical guidance, from pre-sales PoCs to onboarding. You will become an expert in Pathfinder, prepare demonstrations, draft technical docs, and support tender responses,...

Ethos is a new expert network built by a McKinsey/SoftBank/DeepMind team and backed by world-leading investors like General Catalyst. We connect experts with investors and consultancies for paid expert calls, speaking engagements, and advisory opportunities. We are seeking solutions engineers with 4+ years building technical sales presentations to train AI...

Improvado, a marketing data platform, seeks a RevOps lead to own Salesforce configuration, ARR logic, and revenue analytics. You will work with AI agents, ensure clean CRM data, and collaborate with Finance, Marketing and Product to drive accurate forecasting and invoicing. You will implement guardrails, automate checks, and build leadership dashboards while...

Beautiful Destinations seeks an AI/Creative Developer to blend engineering and creative work, building AI systems that produce on-brand content at scale. You will shape generative pipelines and AI agents while ensuring production readiness and reliability across global client delivery. You’ll transform travel footage into high-quality variations,...

Jobgether is seeking an AI Tooling Engineer based in Spain to build and scale an internal AI platform. You will own the full development lifecycle, from understanding user needs to deployment, monitoring, and continuous improvement. Work with Python, LangGraph, LLM APIs, and MCP to deliver production-ready AI agents and integrations across a globally...

Sorcer is seeking a Senior Rails Developer to join their team in Spain. In this role, you will develop and maintain backend systems for a high-scale platform. Candidates should have over 10 years of Ruby on Rails experience and a strong ability to align tech with business goals. The position offers a competitive salary up to €80k, high flexibility with...

YO AI Labs is seeking experienced Full-Stack Software Engineers to support an AI training project focused on software development, debugging, code evaluation, and technical problem-solving. This is a contractor role offering about 15 hours per week and fully remote work globally. Responsibilities include building and debugging frontend and backend systems,...

Hilo by Aktiia is seeking a Corporate IT & Systems Engineer to own identity, devices and business apps, driving the transformation from Microsoft to Google Workspace. This remote EU role reports to the Senior Manager, Corporate Technology & Security and is not a ticket‑driven helpdesk position. You will own problems end to end, automate repetitive work,...

BABEL, consultora tecnológica, busca un/a SecOps Analyst en modalidad 100% remote para gestionar vulnerabilidades, monitorizar seguridad y coordinar la respuesta a incidentes en infraestructuras híbridas y entornos cloud.Se valora formación universitaria en Informática o Ciberseguridad, experiencia en Windows/Linux, redes, automatización y scripting, y...

Realnaut busca un/a QA Automation Engineer especializado/a en automatización de pruebas para un equipo tecnológico centrado en QA de aplicaciones y servicios backend. Participarás en el diseño, desarrollo y mantenimiento de soluciones de automatización, con foco en pruebas de integración y end-to-end, validación de APIs REST y detección temprana de...

Plain Concepts is seeking a Senior Robotics & Simulation Engineer to bridge simulation, AI, 3D environments, and real-world robotics. You will design, simulate, train, test, and deploy robotic solutions that move from virtual space to real platforms. You’ll work across research and applied teams on projects involving Physical AI, Embodied AI, and...

AgileEngine is seeking a Senior Agentic AI Engineer to design and build agentic workflows and AI-powered products for enterprise customers in higher education. The role requires 5+ years in software product development, strong Java/Spring Boot, AWS, and experience with AI agents and multi-agent systems. You will lead engineering practices, mentor peers, and...

Mindrift in a fully remote freelance capacity seeks a senior data scientist to design end-to-end data science problems. You will craft challenges across industries, requiring Python libraries, reproducible answers, and clear documentation of problem statements with realistic business contexts. The role emphasizes GenAI technologies, strong statistics, and...

Paradigma Digital S.L. busca un Data Platform Engineer con experiencia en DevOps para proyectos que combinan datos e infraestructura en la nube. Se valoran conocimientos en AWS y otras nubes, con foco en IaC, pipelines CI/CD y gestión de datos. La posición permite trabajo remoto o híbrido, con oportunidades de crecimiento y aprendizaje continuo en un...

Nuvolar Works is seeking a Senior QA Engineer to join a healthcare project and help shape testing strategy from the start. You’ll design test plans, validate APIs, back-end services, and data integrity, while collaborating closely with developers and product teams to ensure quality across complex digital health solutions. We value continuous learning and...