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Training: Mastering ERC-4337: Protocols and Smart Wallet Development on Ethereum

Ref: XCG341
8 people max.
From $3,675 HT / per person
On-site on request · +$540 with certification exam
3 days
Remote

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Learning objectives

  • Understand in depth the ERC-4337 standard and Account Abstraction
  • Implement an ERC-4337 compatible smart wallet
  • Develop custom EntryPoints for transaction management
  • Master UserOperations, Paymasters, Bundlers, and their interactions
  • Ensure the security, scalability, and user experience of wallets
  • Use open-source tools and frameworks to prototype and deploy
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Our social commitment

A school kit donated to a child for every training

To fight inequalities in access to education, Learni donates a complete school kit to a child in need for every training booked. You build your skills, a child heads back to school.

  • Backpack, notebooks and essential supplies
  • Distributed through our partner charities
  • Included, at no extra cost to you

The Learni story

Founded by engineers and learning experts, Learni's mission is to make high-impact tech training accessible to teams everywhere. We work remotely with organizations across the US and Canada, in your time zone, to help teams upskill fast.

Don't let this gap widen

Why this program matters

  • Without ERC-4337 mastery, your Ethereum smart wallets expose users to critical Account Abstraction vulnerabilities, multiplying exploit risks.

  • An implementation error costs blockchain projects an average of 1.8 million dollars, according to Chainalysis reports on DeFi hacks in 2023.

  • 70% of advanced wallet incidents stem from poor ERC-4337 protocol management, resulting in fund losses and extended service outages.

  • Every quarter without expertise, your company loses 25% market share to agile competitors, directly threatening your career and project viability.

Allan BUSI
Allan BUSI

Learni trainer · AI expert

73%productivity gap
×3cost of inaction

Program

Module 1Introduction to Account Abstraction and ERC-4337

Overview of the evolution of wallets on Ethereum, limitations of Externally Owned Accounts, Account Abstraction concept, motivation and architecture of the ERC-4337 standard. Presentation of the main actors (EntryPoint, UserOperation, Bundler, Paymaster) and initial possible use cases.

Module 2Development of ERC-4337 Smart Wallets

Analysis of EntryPoint operations, development of a smart wallet supporting ERC-4337, transaction execution and validation, customizable signatures and logic, multi-signature management and security, deployment flow creation and testing on testnets, use of open-source libraries (e.g., eth-infinitism).

Module 3Integration, Customization, and Transaction Security

Advanced paymaster implementation to subsidize or condition transactions, innovative gas fee management, interaction with Bundlers, UserOperation customization, audits, protection against common attacks, user experience enhancements (social recovery, 2FA, biometrics), deployment on live environments, and future perspectives of Account Abstraction.

Evaluation method

  • Technical case study: create a customizable smart wallet
  • Continuous evaluation via mini-projects at the end of each module
  • Code review and final quiz on the ERC-4337 ecosystem

Learning method

  • Theoretical courses with live-coded examples
  • Supervised practical workshops and real-world case studies
  • Access to a GitHub repository with resources and advanced examples

Methods, materials and delivery

The Training: Mastering ERC-4337: Protocols and Smart Wallet Development on Ethereum program is delivered onsite or remote (blended-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: Mastering ERC-4337: Protocols and Smart Wallet Development on Ethereum 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: Mastering ERC-4337: Protocols and Smart Wallet Development on Ethereum 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

Registration is possible up to 48 business hours before the start of training. All our programs are built for corporate L&D budgets and delivered onsite or remotely.

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.

Step 1

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.
Step 2

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.
Step 3

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.
Step 4

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.

FAQ

Frequently asked questions

How much does the Training: Mastering ERC-4337: Protocols and Smart Wallet Development on Ethereum training cost?+
The price is $3,675 (USD) per participant. A detailed quote is sent within one business day.
How long is the Training: Mastering ERC-4337: Protocols and Smart Wallet Development on Ethereum training?+
The training lasts 3 journées, available live online (US time zones) or on-site at your offices.
How is this training paid for?+
Most US teams pay directly through their company (L&D or training budget). We invoice in US dollars and accept bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.
Are there any prerequisites?+
Strong knowledge of Ethereum, experience with smart contracts (Solidity), and fundamental concepts of applied cryptography
Is a certificate delivered at the end?+
Yes. A Learni completion certificate is issued, along with the individual evaluation report.
Does Learni provide the equipment?+
No. A computer and stable internet connection are required for the participant. Learni provides the educational platform, the trainer and all course materials.
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