Rigorous trainer selection
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
- Triple validation: technical, pedagogical, sectoral.
- Minimum rating 4.8/5 over the last 12 sessions.
Learning objectives
- Master the ERC-721 standard to create professional certifying NFTs
- Develop secure and optimized ERC-721 smart contracts
- Implement minting, transfers, and metadata in enterprise projects
- Configure interactions with NFT marketplaces like OpenSea
- Optimize security and gas for production deployments
- Design scalable ERC-721 collections in Web3 environments
- Deploy and audit ERC-721 contracts on testnets and mainnet
The Learni story
Founded by passionate learning and innovation experts, Learni's mission is to make professional training accessible to everyone, anywhere in the world. Our team operates in major hubs — London, New York, Boston — and internationally, to support talents and organizations in upskilling.
Don't let this gap widen
Why this program matters
Without this upskilling, your team accumulates a technological gap that translates directly into productivity loss.
Organizations that don't train their talents on key topics see their competitiveness drop.
Every quarter without training is a gap widening with competitors who invest.
The cost of inaction quickly exceeds that of well-targeted training.
Program
Module 1ERC-721 Fundamentals: Interfaces and Standard Structure (Solidity, OpenZeppelin)
Dive into the ERC-721 specifications, analyze mandatory interfaces such as balanceOf and ownerOf, install OpenZeppelin to inherit from base ERC721, create a first simple NFT contract with practical exercises on Remix, initial unit tests via Hardhat, produce a functional deliverable ready for basic minting.
Module 2ERC-721 Implementation: Minting and Token Management (Hardhat, Foundry)
Develop core secure minting functions with URI metadata, implement unique tokenId and owner mappings, exercises on batch minting for large collections, integrate EIP-2981 royalties, simulate gas costs with Foundry, create a complete contract tested on Sepolia testnet, focus on enterprise cases like digital art.
Module 3ERC-721 Transfers and Metadata: Approvals and IPFS (ethers.js, Pinata)
Master safeTransferFrom and setApprovalForAll for secure transfers, manage off-chain JSON metadata via IPFS with Pinata, practical exercises on tokenizing real assets like music or virtual real estate, connect React frontend to interact via ethers.js, produce dynamic metadata, end-to-end tests on your ongoing project.
Module 4ERC-721 Security: Audits and Gas Optimizations (Slither, Mythril)
Identify common vulnerabilities like reentrancy or overflow in ERC-721, use Slither and Mythril for automated static audits, optimize gas with assembly and immutable variables, exercises on refactoring existing contracts, simulate real attacks based on famous NFT hacks, deliverable: audited and optimized contract for production.
Module 5ERC-721 Deployment: Marketplaces and Upgrades (OpenSea, Proxy Patterns)
Deploy your ERC-721 collection to mainnet via Hardhat scripts, integrate with OpenSea and Rarible for automatic listings, implement UUPS proxies for upgrades without downtime, final exercises on custom marketplaces, peer code review, finalize the certifying project with complete documentation and live deployment.
Evaluation method
- Multiple-choice quiz to validate learning outcomes at the end of the training
- Continuous assessment through practical exercises
- Presentation of the ongoing project to the trainer
Learning method
- Training delivered by an expert trainer in active practice
- Practical exercises based on real business cases
- Progressive ongoing project throughout the training
- Complete course materials provided to each participant
Methods, materials and delivery
The Training ERC-721 - Develop Secure NFT Smart Contracts program is delivered onsite or remote (blended-learning, e-learning, virtual classroom, remote presence). At Learni, an industry-certified training organization, every program is built to maximize skills acquisition regardless of the chosen format.
The trainer alternates between demonstrative, interrogative and active methods (through hands-on labs and/or scenarios). This pedagogical approach guarantees concrete learning that's immediately applicable at work.
Equipment required
For the smooth delivery of the Training ERC-721 - Develop Secure NFT Smart Contracts program, the following equipment is required:
- Mac or PC computers, high-speed fiber internet, whiteboard or flipchart, projector or interactive touch screen (for remote sessions)
- Training environments installed on workstations or accessible online
- Course materials, hands-on exercises and complementary resources
- Post-training access to materials and educational resources
For intra-company training on a site outside Learni, the client commits to providing all required teaching materials (computers, internet, etc.) for the smooth delivery of the program in line with the prerequisites in the communicated program.
* contact us for remote delivery feasibility** ratio varies depending on the program
Skills assessment methods
Assessment of skills acquired during the Training ERC-721 - Develop Secure NFT Smart Contracts program is performed through:
- During training: case studies, hands-on labs and professional scenarios
- End of training: self-assessment questionnaire and skills evaluation by the trainer
- After training: completion certificate detailing acquired skills
Program accessibility
Learni is committed to making its programs accessible. All our programs are accessible to people with disabilities. Our teams are available to adapt the pedagogical methods to your specific needs. Please contact us for any adjustment request.
Enrollment terms and lead times
Learni programs are available inter-company and intra-company, onsite or remote. Enrollments are possible up to 48 business hours before the program starts. Our programs are eligible for corporate funding paths. Contact us to discuss your training project and funding options.
Verified reviews
What our learners
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
★★★★★
« cool, j'ai appris des trucs »
★★★★★
« j'etais perdu au debut mais Ramy Saharaoui m'a pas laché, il a pris le temps. merci vraiment »
★★★★★
« la formation dev etait intense mais grave bien. merci Anthony Khelil »
★★★★★
« 😊👍 »
★★★★★
« bien 👍 »
★★★★★
« Allan Busi t'es au top, continue comme ça. formation géniale »
Our method
Training quality, guaranteed at every step
Before, during, after: we frame the brief, introduce the trainer, tailor the content and measure impact. You stay in control from kickoff to wrap-up.
You meet the trainer beforehand
30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.
- Live briefing on goals and team context.
- Veto right — we swap the trainer for free if needed.
Content tailored to your context
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
- Hands-on cases drawn from your stack and projects.
- Program co-written then validated by your team.
Continuous quality follow-up
Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.
- NPS, knowledge quizzes and skills self-assessment.
- Satisfaction guarantee: fully satisfied or free rework.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.
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