Looking for remote AI training or data labeling work open to applicants located in Bulgaria? This work can support AI systems through tasks such as reviewing examples, labeling data, or evaluating model responses. OpenTrain is the hiring organization for roles on OpenTrain. Candidates apply through OpenTrain, and OpenTrain may place or refer successful candidates to the client whose project they will support.
Love music and comfortable speaking English? Join OpenTrain AI for three conversational AI sessions (20–30 minutes each) about your music tastes and U.S. music culture, then give feedback — total ~60–90 minutes at $6.65/hr.
Posted Mar 11, 2025
Remote contract role reviewing AI-generated YOLOv7 object-detection code, explanations, and deployment advice; provide technical code reviews, accuracy checks, and clear written feedback. Part-time (under 20 hrs/week) at $30/hr — flexible, worldwide.
Posted Mar 10, 2025
Experienced OpenCV/YOLO developer (5+ years) needed to review AI-generated code and responses, run structured technical interviews, and provide clear, actionable feedback; remote contractor, part-time (under 20 hrs/week) at $30/hr.
Posted Mar 10, 2025
OpenTrain AI seeks an experienced PyTorch developer to review AI-generated YOLO code, prompts, and model recommendations; part-time contractor work (<20 hrs/week) at $25/hr, remote and worldwide. Provide technical feedback, code reviews, and improved responses aligned with best practices.
Posted Mar 10, 2025
Help shape AI-generated Laravel code by reviewing prompts, responses, and candidate answers in a structured interview role; $20/hr, contractor, under 20 hrs/week, fully remote. Bring deep Laravel experience and clear English writing to give actionable, security-minded feedback.
Posted Mar 10, 2025
Join OpenTrain to evaluate AI-generated Laravel Livewire code and conduct structured technical interviews. This paid, part-time contractor role is remote worldwide at $20/hr for under 20 hours per week.
Posted Mar 10, 2025
Evaluate AI-generated PHP (Laravel) code, run technical interviews, and provide structured feedback to improve model outputs. Part-time remote contractor role paying $15/hr; requires 5+ years hands-on Laravel experience and strong English writing.
Posted Mar 10, 2025
Experienced LangChain v2 developer needed to evaluate AI-generated LangChain code and conduct technical interviews; part-time contractor role (remote, worldwide) at $20/hr for under 20 hours/week. You'll label, critique, and provide structured feedback to improve LangChain v2 outputs and candidate a
Posted Mar 10, 2025
Contract role to review and evaluate AI-generated OpenAI Cookbook code: label, categorize, and give structured technical feedback; $20/hr, under 20 hours/week. Ideal for developers with 5+ years working with OpenAI’s API, fine-tuning, prompt engineering, embeddings, and clear English communication.
Posted Mar 10, 2025
Hire as a part-time Azure OpenAI developer to review, label, and improve AI-generated code and deployment guidance; requires 5+ years hands-on Azure OpenAI experience, strong English writing, and availability under 20 hrs/week at $20/hr.
Posted Mar 10, 2025
Experienced Transformers developer needed to evaluate AI-generated Transformers code, run technical interviews, and provide structured feedback to improve model usage and documentation. Remote, contract, part-time work at $27/hr for contributors with hands-on Hugging Face experience.
Posted Mar 10, 2025
OpenTrain AI seeks a ChromaDB developer to review and label AI-generated ChromaDB code, provide structured technical feedback, and run technical screening interviews; part-time contractor, $25/hr, under 20 hrs/week, fully remote.
Posted Mar 10, 2025
Join OpenTrain to review and evaluate AI-generated LlamaIndex code and prompts, providing detailed, structured feedback to improve RAG integrations. Remote contract, up to 20 hrs/week at $25/hr; requires 5+ years hands-on LlamaIndex experience and strong English writing.
Posted Mar 10, 2025
Seeking an experienced Godot v4 developer (5+ years) to review, label, and critique AI-generated Godot v4 code and explanations; provide clear, structured feedback to improve AI outputs. Part-time contractor, remote, $25/hr, under 20 hours/week.
Posted Mar 10, 2025
Join OpenTrain as a remote, part-time Angular v17 developer to evaluate and label AI-generated code responses; you’ll identify bugs, suggest improvements, and provide clear written feedback. Requires 5+ years hands-on Angular v17 experience and strong English writing; $20/hr.
Posted Mar 10, 2025
Use your Shanghainese expertise to record and rate AI speech for pronunciation and fluency — remote, flexible contract work at $23/hr. Help iterate AI responses until multiple outputs receive a perfect 7/7 naturalness score.
Posted Mar 7, 2025
Join OpenTrain as a part-time contractor helping train an AI chatbot to understand and speak natural Singlish. This role pays $23/hr, requires Singapore native residency, and involves writing, editing, and rating AI-generated Singlish text.
Posted Mar 7, 2025
Join OpenTrain as a remote C# Godot specialist to review and annotate AI-generated C# Godot code, providing clear feedback that improves model output. This part-time contractor role requires 5+ years of Godot experience, excellent English writing, and pays $25/hr for under 20 hours/week.
Posted Mar 7, 2025
Review AI-generated Angular code, assess correctness and best practices, and provide clear written feedback to improve model outputs. Part-time contractor role, $25/hr, remote worldwide, under 20 hours/week.
Posted Mar 7, 2025
Join OpenTrain AI for three short AI-driven chat sessions (60–90 minutes total) about U.S. books and authors, and give feedback on AI reading suggestions. Must be fluent in English, familiar with U.S. culture, love reading, and available for three 20–30 minute sessions; paid $6.65/hr.
Posted Mar 3, 2025
Use your ABR/AOBR board certification to annotate DICOM radiology images remotely for a short, high-pay contract: part-time (5–15 hrs/week), 1–2 months at $150/hr. Flexible schedule; work as a contractor on a secure platform with detailed labeling guidelines.
Posted Feb 27, 2025
Build 100 perfect SQL queries that answer natural-language sports questions using a provided database; contract, remote, 20+ hrs/week at $40/hr while working East Coast hours from Monday 24th to Wednesday 26th.
Posted Feb 22, 2025
Contractor wanted to collect urine output and serum creatinine data from MIMIC-4 using MedPALM2 or BioBERT to train an LLM-based scoring model; intermediate experience preferred. Fixed-price contract: USD 1,000; open worldwide.
Posted Feb 19, 2025
Argentina-based freelancers with B2+ English are needed to review and correct pre-annotated English text tags using an online labeling tool; part-time contractor work under 20 hrs/week at $3.50 USD/hour. Entry-level friendly—previous labeling experience and attention to detail are a plus.
Posted Feb 17, 2025
Transcribe and label short English audio clips for OpenTrain AI on a remote, part-time contract at $15/hr. Native US/Canada speakers with strong listening skills and attention to detail are needed for a 1+ year commitment (1 hour/day, Mon–Fri).
Posted Feb 11, 2025
Write original prompt-and-response pairs from website screenshots to improve AI understanding of visual web content; must be a native English speaker based in the U.S. or Canada, available to start immediately and commit 20+ hours/week at $21/hr.
Posted Feb 4, 2025
Review 50–100 Mandarin electrical engineering QA pairs, verify each answer against provided documents using a document-finding tool, and add precise citations for RAG. Contract, part-time work at $40/hr, ~20–40 hours total and 20+ hrs/week.
Posted Feb 3, 2025
Compare 80 model responses to expert (gold) answers for Dutch corporate financial law documents, identify mismatches, and deliver clear top-level insights; remote, contractor role at $40/hr, ~20+ hours/week.
Posted Jan 28, 2025
OpenTrain is hiring frontend developers in India to create Q&A, sketch annotations, and code edits from website screenshots. Must have official C1/C2 English documentation, 2+ years HTML/CSS/JS, immediate availability, 20+ hrs/week at $13/hr.
Posted Jan 10, 2025
Join OpenTrain AI to annotate short Dutch audio clips (classification & segmentation) in a remote, entry‑level contract project paid as a fixed price of USD 400.26; training on our proprietary tool is provided.
Posted Jan 9, 2025
AI training is human work used to prepare and review examples for artificial-intelligence systems. Depending on the individual role, work open to applicants in Bulgaria can include annotating images or video, transcribing or recording audio, writing or rating model responses, evaluating search results, translating text, reviewing code, or applying subject-matter knowledge. Read each live posting for its exact responsibilities and requirements.
OpenTrain is the hiring organization for these roles, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support. The individual live posting is the source of truth for eligibility, responsibilities, qualifications, experience, pay, hours, schedule, location rules, and client-specific requirements.
