25 Part-time jobs for English speakers in Spain

  • Synthires
  • castro e marzán
  • September 5
  • remote work
  • part-time
Spanish Learner role for a short-term project capturing authentic learning experiences. Participate in recorded, one-on-one Spanish sessions with tutors, focusing on natural conversation and speaking practice. Requires active Spanish learning and native English fluency.
  • Synthires
  • castro e marzán
  • September 5
  • remote work
  • part-time
Spanish Learner role for a short-term project capturing authentic learning experiences. Participate in recorded, one-on-one Spanish sessions with tutors, focusing on natural conversation and speaking practice. Requires active Spanish learning and native English fluency.
  • Synthires
  • castro e marzán
  • September 5
  • remote work
  • part-time
AI Software Engineer needed for advanced AI research. Develop Reinforcement Learning environments to test AI models on software engineering workflows. Requires proficiency in C++, Python, Java, Go, TypeScript, or Rust, plus strong algorithmic knowledge.
  • Synthires
  • castro e marzán
  • September 5
  • remote work
  • part-time
AI Engineer role developing Reinforcement Learning environments to test AI models on software engineering workflows. Requires strong proficiency in C++, Python, Java, Go, TypeScript, or Rust, plus expertise in algorithms and performance optimization.
  • Coonerang Language School
  • Madrid
  • September 4
  • part-time
Coonerang Language School seeks two English teachers for the 2026–2027 academic year. Candidates need relevant experience, a C1 English level, and teaching experience with age groups 6–11, 12–17, or 18+.
  • Jabroni Capital
  • Madrid
  • September 4
  • remote work
  • part-time
Executive Ghostwriter needed to create unique, viral LinkedIn content for 4 accounts. Transform raw thoughts into polished, high-performing posts, memes, and shitposts. Must understand virality and tech culture.
  • Jabroni Capital
  • Madrid
  • September 4
  • remote work
  • part-time
Write unique, viral content for client X accounts, producing 45 posts monthly. Manage comments and replies, and transform raw thoughts into polished, high-performing posts. Must understand X virality and tech culture.
  • Werfen
  • Catalonia
  • September 3
  • part-time
Supports Corporate QA IT in maintaining compliance and inspection readiness for IT systems. Focuses on technical assurance for platforms (cloud/Kubernetes), documentation review, and audit readiness. Requires IT background and experience with platforms/operations.
  • Synthires
  • Vitoria-Gasteiz
  • September 2
  • remote work
  • part-time
Experienced Software Engineers are needed to design and develop Reinforcement Learning environments for AI model evaluation. Proficiency in Python, Java, C++, Rust, or TypeScript is required. Focus on debugging, refactoring, and performance optimization.
  • Synthires
  • Cequelinos
  • September 2
  • remote work
  • part-time
Experienced Software Engineers are needed to design and develop Reinforcement Learning environments for AI model evaluation. Proficiency in Python, Java, C++, Rust, or TypeScript is required. Focus on debugging, refactoring, and performance optimization.
  • Synthires
  • Chazo
  • September 2
  • remote work
  • part-time
Experienced Software Engineers are needed to design and develop Reinforcement Learning environments for AI model evaluation. Proficiency in Python, Java, C++, Rust, or TypeScript is required. Focus on debugging, refactoring, and performance optimization.
  • Synthires
  • Spain
  • September 2
  • remote work
  • part-time
Experienced Software Engineers are needed to design and develop Reinforcement Learning environments for AI model evaluation. Proficiency in Python, Java, C++, Rust, or TypeScript is required. Focus on debugging, refactoring, and performance optimization.
  • Synthires
  • Valencia
  • September 2
  • remote work
  • part-time
Experienced Software Engineers are needed to design and develop Reinforcement Learning environments for AI model evaluation. Proficiency in Python, Java, C++, Rust, or TypeScript is required. Focus on debugging, refactoring, and performance optimization.
  • Synthires
  • Vitoria-Gasteiz
  • September 2
  • remote work
  • part-time
Experienced AI/Software Engineer needed for contract role. Develop RL environments to test AI models on software workflows, focusing on debugging, refactoring, and optimization. Proficiency in C++, Python, Java, Go, TypeScript, or Rust is required.
  • Synthires
  • Cequelinos
  • September 2
  • remote work
  • part-time
Experienced AI/Software Engineer needed for contract role. Develop RL environments to test AI models on software workflows, focusing on debugging, refactoring, and optimization. Proficiency in C++, Python, Java, Go, TypeScript, or Rust is required.
  • Synthires
  • Spain
  • September 2
  • remote work
  • part-time
Experienced AI/Software Engineer needed for contract role. Develop RL environments to test AI models on software workflows, focusing on debugging, refactoring, and optimization. Proficiency in C++, Python, Java, Go, TypeScript, or Rust is required.
  • Synthires
  • Chazo
  • September 2
  • remote work
  • part-time
Experienced AI/Software Engineer needed for contract role. Develop RL environments to test AI models on software workflows, focusing on debugging, refactoring, and optimization. Proficiency in C++, Python, Java, Go, TypeScript, or Rust is required.
  • Synthires
  • Valencia
  • September 2
  • remote work
  • part-time
Experienced AI/Software Engineer needed for contract role. Develop RL environments to test AI models on software workflows, focusing on debugging, refactoring, and optimization. Proficiency in C++, Python, Java, Go, TypeScript, or Rust is required.
  • European International School of Barcelona
  • Catalonia
  • August 29
  • part-time
Passionate Math and Science Teacher needed for Secondary team. Responsibilities include planning and delivering engaging lessons for ESO, National Baccalaureate & IB. Requires a Bachelor's degree in a related field and two years of experience.
  • ES American School
  • Catalonia
  • August 28
  • part-time
Experienced Learning Support Specialist needed for a part-time role starting September 2026. Ensure individual needs are met for students requiring support, either 1:1 or in the classroom. Fluency in English and a valid Spanish work permit are essential.
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