Full-Stack AI Data Annotator

Odixcity Consulting is seeking a detail-oriented Web Data Analyst Annotator to collect, analyze, validate, and annotate web-based datasets used in training AI and large language models. You’ll work with data scientists, AI trainers, and data operations teams to improve model reasoning, search quality, and automated web understanding systems. This role is...

Anyone AI is recruiting skilled Full-Stack 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, C#, or Go Backend or full-stack development...

We’re hiring freelance AI Data Annotators for Spanish language alignment work. You'll listen to audio and align spoken words to their exact position in the transcript - correcting boundaries, catching mis-transcriptions, and making sure every word lands where it belongs. The work is detail-heavy and quiet. If you like careful, focused tasks and have a good...

Perit AI (YC F26) is seeking freelance AI Data Annotators for Spanish language alignment. You will listen to audio and align spoken words to the transcript, correcting boundaries and mis-transcriptions with careful attention to timing and details. This role is fully remote and flexible, with no fixed schedule or minimum commitment. You choose tasks when...

ElevenLabs is seeking Full-Stack engineers to develop and maintain both front-end and back-end components of our product suite. You will own end-to-end features and collaborate across engineering, growth and sales to solve critical problems. The role is remote globally, with optional offices in London, New York, San Francisco and Warsaw. We offer flexibility...

Lever, Inc. is seeking a Product Engineer based in Spain to join a fast-growing AI environment. You’ll own features from idea to release, shaping frontend with Next.js and backend with Django and PostgreSQL, and work directly with the founder to bring ideas into production. This role offers high autonomy, minimal meetings, and the chance to influence 3D...

Synthires is seeking Generalists to contribute to a dynamic customer project focused on training and evaluating next-generation AI systems. This fully remote role emphasizes critical thinking, attention to detail, and clear communication, with no prior AI experience required. You will analyze, annotate, and review datasets to support AI training and...

Neev is seeking a Fluent English-speaking Full Stack developer to work remotely within the EU. You will join the Development team and collaborate with a major client’s IT team on varied tooling and data workflows. You will design social data tools, build frontend interfaces, create robust back-end APIs, and automate tasks with Bash and Python. Strong...

UST España & Latam is seeking a Senior Full Stack Developer (AI-Native) to join an innovative technology team. You will design, develop, and maintain scalable enterprise applications for a leading international banking environment, leveraging Java, Spring Boot, Hibernate, and Angular within a 100% remote setup in Spain. You will work with modern...