915 Tiempo parcial freelance ruby on rails developer jobs in España.

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Language Trainers

Freelance Mandarin Tutor — Barcelona (One-to-One)

Hace 1 día

Tiempo parcial
Contrato

Language Trainers is seeking a freelance Mandarin tutor for one-to-one sessions in 08210, Barcelona. Start ASAP with weekly meetings (Tuesdays 17:00–19:00) and a total of 30 hours. Hourly rate negotiable based on experience and qualifications. This is a freelance, part-time position with flexible schedule and location. ...

Spain, Barberà del Vallès

Language Trainers

Online Dutch language teacher needed ID1134261

Hace 1 día

Tiempo parcial
Contrato

... qualification - Have experience as a language teacher, translator or interpreter - Have a valid work permit/visa - Live within 30 km of the specified location Conditions - Schedule and location may be flexible based on availability - Hourly rate is negotiable depending on experience and qualifications - Freelance position, with ...

Spain, España

BSBI-Berlin

Freelance MBA Finance & Accounting Lecturer

Hace 6 días

Tiempo parcial
Contrato

... Barcelona, with flexible full- or part-time engagement as a freelancer, starting July 2026. Duties include teaching in English/Spanish, supervising dissertations, and developing curricula, with strong focus on student mentoring and assessment. The position requires substantial higher-education teaching experience, fluency ...

Spain, Barcelona

Competitive Programming Expert - Freelance AI Trainer

Hace 11 días

Remoto
Tiempo parcial
Contrato

Up to US$90 an hour

... current/peak rating, any problem-setting experience, and IOI/ICPC/olympiad history. What you'll do - Write original algorithmic problems - clear statement, sound constraints, an intended solution; - Write correct solutions in C++ and Python; - Write realistic wrong solutions (common mistakes) to test against; - Build and harden ...

Spain

Legal Pigeon

Comercial B2B Freelance — Sector Legal

Hace 11 días

Remoto
Tiempo parcial
Contrato

4500 / year

... Llevamos más de cinco años creciendo y queremos reforzar el equipo comercial con un perfil freelance que conozca bien el sector legal y disfrute vendiendo soluciones con valor real. Sobre el rol Buscamos un/a comercial B2B freelance con experiencia demostrable en ventas y conocimiento del sector legal, que nos ayude a potenciar ...

Spain, Vitoria

Senior Python Data Scraping Engineer (Freelance)

Hace 13 días

Remoto
Tiempo parcial
Contrato

Up to US$40 an hour

... This part-time remote opportunity is ideal for technical professionals with hands-on experience in web scraping, data extraction and processing. This is a freelance role for a Tendem project. As a Senior Python Data Scraping Engineer , you'll handle data scraping tasks requiring technical precision for web extraction and ...

Spain

Language Trainers

Mandarin Chinese Language teacher-ID: 1128593

Hace 12 días

Tiempo parcial
Contrato

... teacher, translator or interpreter - Have a valid work permit/visa - Live within 30 km of the specified location Conditions - Schedule and location may be flexible based on availability - Hourly rate is negotiable depending on experience and qualifications - Freelance, part-time position - We are not able to sponsor visas

Spain, Barberà del Vallès

RemoteFetch

Remote AI Process Engineer Trainer (Freelance)

Hace 1 día

Remoto
Tiempo parcial
Contrato

10x Team is seeking a freelance Process Engineering Consultant - AI Trainer to refine AI outputs in process engineering, operations management, and workflow design. The role is remote, EU/UK-based, and part-time (8-20 hrs/week), with flexible project-based assignments. You will develop real-world scenarios, assess AI recommendations, ...

Spain, España

BSBI-Berlin

Global MBA Marketing Lecturer (Freelance, English)

Hace 6 días

Tiempo parcial
Contrato

BSBI Barcelona is seeking a freelance lecturer in Global MBA with expertise in Marketing to teach in English (and possibly Spanish) at our Barcelona campus. The role offers full or part-time engagement and hourly compensation, with responsibilities spanning teaching, supervision, and curriculum development. Applicants should ...

Spain, Barcelona

BSBI-Berlin

Freelance Lecturer in Global MBA expertise in Finance and Accounting (English Speaking) - BSBI [...]

Hace 6 días

Tiempo completo
Tiempo parcial
Contrato

€50 EUR / hour

... Dissertation/ Project/ Internship. Please note that there is no differentiation in the standards or requirements of the tasks for Freelance or Fulltime faculty. The Freelance arrangement is just a mode of engagement to offer you greater flexibility. As a Freelance Lecturer, you will be requested to contribute to one or more of the ...

Spain, Barcelona

BSBI-Berlin

Freelance Lecturer in Global MBA expertise in Marketing (English Speaking) - BSBI Madrid

Hace 6 días

Tiempo completo
Tiempo parcial
Contrato

€50 EUR / hour

Spain, Madrid

Language Trainers

Mandarin Tutor (Freelance, Part-Time) - Beginner-friendly

Hace 10 días

Tiempo parcial
Contrato

Language Trainers is seeking a freelance Mandarin Chinese teacher for a client in Santa Cruz de Tenerife, Spain. The role is General course type with a three-to-one format and total 30 hours; schedule is flexible with a Wednesday afternoon slot. The student is a beginner who wants to start learning for hobby and possibly ...

Spain, Santa Cruz de Tenerife

Expanish SA

Freelance Part-Time Social Media Content Creator

Hace 11 días

Tiempo parcial
Contrato

Freelance Part-Time Social Media Content Creator We seek a talented and creative Content Creator to join our team at Expanish Spanish Schools in Málaga. This position involves daily content creation and execution for our audience (foreign language students) on our social media platforms such as Instagram, TikTok, and YouTube. ...

Spain, Málaga

Backend Developer (Spain)

Hace 11 días

Remoto
Tiempo parcial
Contrato

US$45 - US$80 an hour

About the job Anyone AI is recruiting skilled Backend Developers to work on a project with a leading AI lab. Qualifications - Advanced professional written proficiency in English - 3-7 years of professional software engineering experience - Strong proficiency in Python and JavaScript/TypeScript; working knowledge of Java, ...

Spain

pasiona consulting

Software Developer - Visual Delphi

Hace 1 día

Remoto
Tiempo parcial
Contrato

... entornos ERP. - Experiencia trabajando con arquitecturas o aplicaciones legacy. - Conocimiento de diferentes versiones de Delphi. - Experiencia en integración con otros sistemas, servicios o APIs. Ubicación 100% remoto , desde cualquier punto de España. Part-time — idealmente freelance, las horas irán en función de las necesidades ...

Spain

trabajocantabria

Diseñador/a gráfico/a

Hace 1 día

Tiempo completo
Tiempo parcial
Contrato

... organizada, resolutiva, con atención al detalle, iniciativa y capacidad para trabajar en equipo. Media jornada (valorable ampliación a jornada completa a medio plazo) Contrato: 6 meses + 6 meses + indefinido También se valorarán perfiles freelance/autónomos Si te apasiona el diseño y quieres formar parte de un proyecto consolidado ...

Spain, Santander

Vizzuality

Software Engineer "Spontaneous Application”

Hace 4 días

Remoto
Tiempo parcial

€1k EUR - €1500 EUR / year

... Javascript, NodeJS, Ruby, Rails, and Python so if you can bring some skills and experience in some of these you are already off to a good start in the application process. - Some of the challenges we tackle on a day-to-day basis require graph knowledge, GIS awareness, and databases, like PostgreSQL. - Experience with cloud-based ...

Spain

telus digital

Remote Data Analyst — Maps & Geography Research (Spanish)

Hace 1 día

Remoto
Tiempo parcial
Contrato

TELUS Digital is seeking a detail-oriented Online Data Analyst to help enhance digital maps for a global audience. This freelance, part-time role lets you work from home with flexible hours and remote collaboration. You will verify and compare data, perform web-based research using maps and websites, and assess information ...

Spain, Barcelona

Anyone AI

Backend Developer - AI Trainer (Spain)

Hace 7 días

Remoto
Tiempo parcial
Contrato

US$45 - US$80 an hour

About the role Anyone AI is recruiting skilled Backend Developers to work on a project with a leading AI lab. What you'll do Contributors will: - Design and implement multi-file coding tasks across bug fixing, feature development, refactoring, and testing - Write clear natural-language specifications and reference implementations ...

Spain