Use the course
Read lessons and use the tools without creating an account or providing contact details.
PRIVACY · IN PLAIN LANGUAGE
Your learning does not require an account.
You can study, practise, and use the lab without registering. Your progress is associated with a pseudonym. Your name, social profile, and email only enter the picture when you choose.
- We use no cookies.
- We do not sell data or track you for advertising.
- We do not retain the content you enter into the tools.
- Linking a profile, publishing a result, and accepting email are separate choices.
YOUR CHOICES
What happens when you use the Club
Each feature asks only for the information it needs. Nothing becomes public automatically.
Save your progress
Completed modules, practice, and evidence are associated with a pseudonymous identifier so you can resume them. Submissions are limited to prevent abuse; your history does not include an IP address or browser data.
Take a challenge
Answers, timing, and results needed to score, prevent repeats, and verify the attempt are retained.
Choose whether to appear
After the challenge, you can keep the result private, link a profile, or authorize publication. These actions are voluntary and reversible.
WHAT WE KEEP · WHY
Data and retention
This table summarizes the information processed. It does not describe our architecture or internal mechanisms.
| Information | When | Purpose | How long | Who can see it |
|---|---|---|---|---|
| Learning progress | When you complete resources or save evidence | Resume the path, calculate progress, and build your portfolio | Until you erase it or after 730 days without activity | Only you; it remains pseudonymous |
| Learning activity | When you complete closed course actions | Build your history, identify difficult content, and improve the program | Detail for up to 730 days; aggregate statistics for up to 400 days | Detail is not published; statistics do not identify people |
| Tool inputs and outputs | While using a lab tool | Generate the artifact you requested | Not retained after closing or reloading | Only you |
| Challenge access credential | When entering the official challenge or Live | Authenticate access and enforce participation limits | Session for up to 30 days; attempts and proof for up to 730 days, except while active Discord access depends on the signed proof | Not public |
| Live room participation | When joining under a chosen name | Run the room, score answers, and display its ranking | Detailed answers until the room ends; name and result for no more than 30 days | Participants and host of that room |
| Verified professional profile | When you choose result attribution or Club Discord access | Prevent duplicate identities, protect the community, and display you on the leaderboard only after separate permission | While linked; minimum evidence for up to 730 days after unlinking | Private by default; leaderboard display needs separate authorization |
| Club rules acceptance | Before Discord access is activated | Retain the version and exact text you accepted to protect the community | While access remains active; up to 3 years after revocation | Not published |
| Optional Discord account and level | Only when you choose to enter after the challenge, verify a profile, and accept the rules | Give you community access and assign the role earned in the Quiz | Until you unlink Discord or remove the professional profile | Discord sees your account and server members see your role; your exact score is not shared |
| Email and consent record | Only after selecting the specific communications checkbox | Send LLM Engineering content, news, offers, events, and meetups | Email until unsubscribe; minimal consent record for up to 3 years | Not public |
| Contribution authorship | When a contribution to the open repository is accepted | Credit authors and reviewers | According to the repository’s public history | Public through the profile chosen for contributing |
| Technical connection data | When delivering or protecting the service | Deliver the site, keep it available, and prevent abuse | Bounded technical windows under each service and its contractual safeguards; we create no persistent request identifier | Providers that help us provide and protect the service |
You remain in control
You can export your progress, port it, or erase it. With a passkey, you can download a complete Quiz copy or erase the credential and its associated data. Publication, Discord, and communications can also be withdrawn separately.
Controller: Bluebell Business S.A. (Spanish tax ID A97812101), owner of LLM Engineer Club. We answer access, rectification, erasure, objection, restriction, and portability requests, normally within one month. Privacy contact: contacto@traderprofesional.com. You may also lodge a complaint with the Spanish Data Protection Agency (AEPD).
GDPR INFORMATION
Legal bases, recipients, and rights
Pseudonymisation reduces risk, but these data remain protected personal data.
Legal basis by purpose
Requested service (Art. 6(1)(b)): progress, passkey, Quiz, Live, credentials, and requested Discord access. Legitimate interests (Art. 6(1)(f)): security, fraud prevention, fair play, moderation, and aggregate improvement; you may object and we will review your circumstances. Consent (Art. 6(1)(a)): leaderboard, public profile, and marketing, always separate and revocable. Withdrawal does not affect the lawfulness of earlier processing. Legal obligation (Art. 6(1)(c)): handling rights, breaches, and enforceable responsibilities.
Providers and transfers
Cloudflare hosts and protects the service; the persistent database remains in the European Union, although its global network may process technical data. GitHub, LinkedIn, X, or Discord operate under their own policies when you choose to link them. Processing outside the EEA relies, as applicable, on adequacy decisions, the EU-US Data Privacy Framework, or Standard Contractual Clauses. You may request a copy of safeguards from the privacy contact.
Your rights
Automated controls let you export and erase progress and Quiz data immediately. You may also request access, rectification, erasure, objection, restriction, or portability by email. We verify requests with the local key, passkey, or other evidence you provide without requesting excessive information. You may withdraw consent at any time and complain to the AEPD.
Automated decisions
Quiz scoring and level assignment use verifiable automated rules but create no legal or similarly significant effect. Abuse signals may block or route a result for review; you may request human review. We perform no advertising profiling.
Required data and children
Reading the course requires no contact data. The passkey and identified data are required only for the competitive or community features you choose; if you do not provide them, those features remain unavailable and you may continue reading the course. Profile linking, publication, and email are optional. Identity, publication, and marketing features require confirmation of age 14 or parental or guardian authorization.
CLEAR LIMITS
What we do not do
We do not build advertising profiles, track your activity outside the Club, publish your identity without permission, or use your tool content to train models or develop other products.
Version 2026-08-25 · Last reviewed: August 25, 2026