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Annotation Jobs

283 curated roles with verified salaries.

Updated 6 months ago
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AI Trainer - Freelance Annotator (Portuguese)

May be filled
Q40 Match 40% Toloka Annotators Reino Unido 2026-02-07
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As an annotator, you may be invited to take part in online projects such as rating AI-generated content, evaluating factual accuracy, or comparing responses — when projects are available. Get paid for your expertise,…

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As an annotator, you may be invited to take part in online projects such as rating AI-generated content, evaluating factual accuracy, or comparing responses — when projects are available. Get paid for your expertise, with rates that can go up to $22/hour depending on your skills, experience, and project needs Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments Work on advanced AI projects and gain valuable experience that enhances your portfolio Influence how future AI models understand and communicate in your field of expertise Show less [{"type":"people_also_viewed","href":"https://uk..com/jobs/view/computer-systems-engineer-at-mercor-4371294583","jobId":"4371294583","label":"Computer Systems Engineer"},{"type":"people_also_viewed","href":"https://uk..com/...

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AI Trainer - Freelance Annotator (Portuguese)

May be filled
Q40 Match 40% Toloka Annotators España 2026-02-07
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As an annotator, you may be invited to take part in online projects such as rating AI-generated content, evaluating factual accuracy, or comparing responses — when projects are available. Get paid for your expertise,…

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As an annotator, you may be invited to take part in online projects such as rating AI-generated content, evaluating factual accuracy, or comparing responses — when projects are available. Get paid for your expertise, with rates that can go up to $22/hour depending on your skills, experience, and project needs Take part in a part-time, remote, freelance project that fits around your primary professional or academic commitments Work on advanced AI projects and gain valuable experience that enhances your portfolio Influence how future AI models understand and communicate in your field of expertise Show less [{"type":"people_also_viewed","href":"https://es..com/jobs/view/ai-automation-analyst-at-fever-4355363931","jobId":"4355363931","label":"AI & Automation Analyst"},{"type":"people_also_viewed","href":"https://es..com/jobs/vi...

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AI Regulatory Program Manager - GE HealthCare

May be filled
Q40 Match 40% GE HealthCare Mineápolis, Minnesota, Estados Unidos 2026-02-07
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Track regulatory landscape changes and update processes accordingly. Regulatory Study Design & Data Management Define validation dataset requirements (size, demographics, sites) in compliance with regulatory guidance.

AI Data Specialist - RWS Group

May be filled
Q60 Match 40% RWS Group Arkansas, Estados Unidos 2026-02-07
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AI & Data Capabilities (Preferred): Experience in one or more of the following areas: machine learning tasks, data collection and preprocessing, data evaluation and quality assurance, and data annotation and labeling.…

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AI & Data Capabilities (Preferred): Experience in one or more of the following areas: machine learning tasks, data collection and preprocessing, data evaluation and quality assurance, and data annotation and labeling. What We Offer: Flexible schedule Opportunity to earn extra income Timely payments The job is ideal for students, part-timers, or stay-at-home parents #LI-PR15 Show less [{"type":"people_also_viewed","href":"https://www..com/jobs/view/application-developer-at-dataannotation-4304442961","jobId":"4304442961","label":"Application Developer"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/back-end-developer-at-dataannotation-4309697527","jobId":"4309697527","label":"Back End Developer"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/software-engineer-remote-at-jobgether-4371662380","jobId":"4371662380","label":"Software Engineer - REMOTE"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/software-developer-at-dataannotation-4304450606","jobId":"4304450606","label":"Software Developer"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/systems-developer-at-dataannotation-4309801166","jobId":"4309801166","label":"Systems Developer"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/full-stack-developer-at-dataannotation-4309815035","jobId":"4309815035","label":"Full Stack Developer"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/project-civil-engineer-data-center-at-olsso...

AI Data Annotation Specialist – Global Freelance Role

May be filled
Q40 Match 75% TELUS Digital Reino Unido 2026-02-07
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AI Data Annotation Specialist – Global Freelance Role, Flexible Hours Location: Global – Remote Working Hours: Flexible schedule, up to 10 hours/day and 40 hours/week About the Role Help shape the future of AI! Show…

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AI Data Annotation Specialist – Global Freelance Role, Flexible Hours Location: Global – Remote Working Hours: Flexible schedule, up to 10 hours/day and 40 hours/week About the Role Help shape the future of AI! Show less [{"type":"similar_search","href":"https://www..com/jobs/assistant-network-engineer-jobs","label":"Empleos de Ingeniero de Red Asistente"},{"type":"similar_search","href":"https://www..com/jobs/survey-coordinator-jobs","label":"Empleos de Coordinador de péritos"},{"type":"similar_search","href":"https://www..com/jobs/research-support-specialist-jobs","label":"Empleos de Especialista en servicio de investigación"},{"type":"similar_search","href":"https://www..com/jobs/advertising-production-manager-jobs","label":"Empleos de Gerente de producción publicitaria"},{"type":"similar_search","href":"https://www..com/jobs/search-analyst-jobs","label":"Empleos de Analista de servicios de búsqueda"},{"type":"...

Water Supply Data Analyst (0142) (Hybrid)

May be filled
Q65 Match 40% Southwest Florida Water Management District Brooksville, Florida, Estados Unidos 2026-02-06
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Work for Our Water Resources. Help protect one of Florida’s most vital resources — water — with a career at the Southwest Florida Water Management District (District).

Remote Data Contributor (No experience needed)

May be filled
Q40 Match 40% TransPerfect Dade City, Florida, Estados Unidos 2026-02-06
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Position: Data Contributor Study Location: Remote Task duration: Up to 1 hour Engagement Model: One-time, task based At DataForce by TransPerfect we’re currently seeking participants residing in the USA to join our…

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Position: Data Contributor Study Location: Remote Task duration: Up to 1 hour Engagement Model: One-time, task based At DataForce by TransPerfect we’re currently seeking participants residing in the USA to join our Orchid Remote Audio Collection project What is the project about? To learn more about DataForce please visit us at https://www.transperfect.com/dataforce Show less [{"type":"people_also_viewed","href":"https://www..com/jobs/view/ai-data-annotation-specialist-us-freelance-role-flexible-hours-at-telus-digital-4365163319","jobId":"4365163319","label":"AI Data Annotation Specialist (US) Freelance Role, Flexible Hours"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/freelance-agent-evaluation-engineer-at-mindrift-4370398812","jobId":"4370398812","lab...

Healthcare Research Data Annotator - Alignerr

May be filled
Q65 Match 40% Alignerr Estados Unidos 2026-02-06
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This role requires careful judgment, consistent annotation quality, and attention to detail in complex datasets. Show more…

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This role requires careful judgment, consistent annotation quality, and attention to detail in complex datasets. Show more [{"type":"people_also_viewed","href":"https://www..com/jobs/view/healthcare-expert-at-dataannotation-4309856819","jobId":"4309856819","label":"Healthcare Expert"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/healthcare-expert-at-dataannotation-4309854825","jobId":"4309854825","label":"Healthcare Expert"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/healthcare-expert-at-dataannotation-4309853943","jobId":"4309853943","label":"Healthcare Expert"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/healthcare-expert-at-dataannotation-4309868332","jobId":"4309868332","label":"Healthcare Expert"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/healthcare-claims-quality-analyst-at-evry-health-4372779778","jobId":"4372779778","label":"Healthcare Claims Quality Analyst"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/clinical-appeals-analyst-at-motion-recruitment-4367176278","jobId":"4367176278","label":"Clinical Appeals Analyst"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/healthcare-expert-at-dataannotation-4309862659","jobId":"4309862659","label":"Healthcare Expert"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/junior-analyst-healthcare-consultant-jr-at-ansible-government-solutions-4303282387","jobId":"4303282387","label":"Junior Analyst/Healthcare Consultant Jr."},{"type":"people_also_viewed","href":"https://www..com/jobs/view/quality-management-nurse-consultant-at-lensa-4364446598","jobId":"4364446598","label":"Quality Management Nurse Consultant"},{"type":"people_also_viewed","href":"https://www..com/jobs/view/quality-practice-advisor-at-sunshine-health-4371655600","jobId":"4371655600","label":"Quality Practice Advisor"},{"type":"similar_search","href":"https://www..com/jobs/director-of-student-financial-services-jobs","label":"Empleos de Director de servicios financieros de los estudiantes"},{"type":"similar_search","href":"https://www..com/jobs/clinical-application-analyst-jobs","label":"Empleos de Analista de aplicaciones clínicas"},{"type":"similar_search","href":"https://www..com/jobs/senior-healthcare-analyst-jobs","label":"E...

Formal Verification Scientist (Lean 4 & Mathlib)

May be filled
Q65 Match 40% Alignerr Denver, Colorado, Estados Unidos 2026-02-06
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Write and formalize advanced mathematical proofs in Lean for cutting-edge AI research. Organization: Alignerr Position: Formal Verification Scientist (Lean 4 & Mathlib) Type: Hourly Contract Compensation: $70–$150 /hour…

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Write and formalize advanced mathematical proofs in Lean for cutting-edge AI research. Organization: Alignerr Position: Formal Verification Scientist (Lean 4 & Mathlib) Type: Hourly Contract Compensation: $70–$150 /hour Location: Remote Commitment: 10–40 hours/week Role Overview - We are seeking mathematicians with deep training in rigorous proof construction and hands-on experience with formal proof languages, especially Lean.

Formal Verification Scientist (Lean 4 & Mathlib)

May be filled
Q65 Match 40% Alignerr Chicago, Illinois, Estados Unidos 2026-02-06
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Write and formalize advanced mathematical proofs in Lean for cutting-edge AI research. Organization: Alignerr Position: Formal Verification Scientist (Lean 4 & Mathlib) Type: Hourly Contract Compensation: $70–$150 /hour…

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Write and formalize advanced mathematical proofs in Lean for cutting-edge AI research. Organization: Alignerr Position: Formal Verification Scientist (Lean 4 & Mathlib) Type: Hourly Contract Compensation: $70–$150 /hour Location: Remote Commitment: 10–40 hours/week Role Overview - We are seeking mathematicians with deep training in rigorous proof construction and hands-on experience with formal proof languages, especially Lean.

Salary insights

Transparency promise

Salary tags blend employer provided ranges with Catalitium estimates. We mark ranges with Est. labels, note any missing data, and never inflate compensation to boost clicks.

Currency harmonized to USD/EUR/GBP/CHF to avoid surprises.

Outliers are reviewed manually before they appear on a card.

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AI roles Developer jobs Remote first Senior tracks 100k+ offers EU market US market UK market

Job search FAQs

Are remote AI roles hiring in the EU?

Yes. Remote-friendly AI and ML roles in the EU have grown over 30% year-on-year. Germany, France, the Netherlands, and Spain lead in volume. Use the AI and EU filters together to surface them quickly, and check the salary estimate badge to ensure the range meets your expectations.

How fresh are the job postings?

Listings are refreshed continuously from employer feeds and normalised daily. Each card shows a posted date pill so you can see exactly how old a listing is. Jobs posted within the last 7 days receive a green New badge. Listings older than 30 days receive a May be filled warning.

Do roles include salary estimates?

Yes. Most listings show an Est. salary pill derived from Catalitium's location-based salary database, blended with any employer-disclosed range. Senior and lead roles receive an automatic seniority uplift. If a salary range is genuinely unknown we leave the field blank rather than show a misleading estimate.

What is a ghost job and how do I spot one?

A ghost job is a listing that has been live for 30+ days and is likely already filled, on hold, or was never a real opening. Research suggests up to 40% of active listings at any time are ghost jobs. Catalitium flags every listing older than 30 days with a triangle May be filled badge so you can prioritise your energy on fresh openings.

What are the highest-paying tech roles right now?

AI and ML engineer roles currently command the highest median salaries on Catalitium, around $150k–$200k USD in the US and EUR 100k–EUR 160k in Europe. Principal and Staff Engineer roles come close, followed by senior full-stack and cloud infrastructure engineers. Use the >100k filter to see only high-compensation listings.

How do I negotiate a higher salary offer?

Reference Catalitium's salary data when negotiating: show the employer the market range for your role and region. Studies show engineers who negotiate receive 10–20% more than the initial offer on average. If base salary is fixed, push on equity, signing bonus, remote allowance, and learning budget. See our Salary Negotiation Guide in the Resources section.

Which European cities pay the most for tech?

Zurich and Geneva (Switzerland) consistently top European tech salaries, followed by London, Amsterdam, Berlin, Paris, and Stockholm. Swiss salaries are typically quoted in CHF and translate to EUR 100k–160k for mid-senior roles. London follows at GBP 70k–110k. Berlin and Amsterdam are competitive at EUR 70k–100k for comparable experience levels.

Can I track my job applications on Catalitium?

Yes. Our free Application Tracker lets you move roles through a Kanban pipeline: Applied, Phone Screen, Interview, Offer, and Closed. It requires no account and stores everything privately in your browser. Hit the Track button on any job card to add it. You can also export your full pipeline as a CSV.

How does Catalitium differ from LinkedIn Jobs?

LinkedIn optimises for engagement and premium upgrades. Catalitium is built exclusively for tech candidates who want signal over noise: every listing shows salary estimates, ghost jobs are flagged, AI-powered summaries save you time reading descriptions, and the application tracker replaces the black-hole Easy Apply experience. No premium paywall, no recruiter spam.

Can I filter to remote-only jobs?

Yes. Choose Remote in the location/country field or tap a Remote shortcut chip. Results are limited to roles that advertise remote or hybrid where the listing text supports it, and remote-friendly rows show a Remote badge.

Which tech stacks are most in demand?

Across Catalitium tech listings, Python, TypeScript/JavaScript, Go, Java, and cloud platforms (AWS, GCP, Azure, Kubernetes) recur most often; AI and data roles add PyTorch, TensorFlow, and LLM tooling. Title and AI summary chips reflect the employer's stated stack.

Which Swiss cities pay the most for software roles?

Zurich and Geneva typically lead Switzerland for software, data, and platform engineering compensation; smaller hubs follow at a discount. Swiss ranges often sit above neighbouring EU markets for comparable seniority—check Est. salary on each card when you filter by Switzerland.

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