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.
Describe your need, get a tailored program and a pre-filled quote in 3 min. A 100% free call with an advisor.
1 seat held for the next session
Request a call back and an advisor reaches you within 24 business hours, Monday to Saturday.

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.
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
Without mastery of Polygon, Ethereum dApps face gas fees multiplied by 50 to 100 during congestion, resulting in 30% to 70% revenue losses for DeFi projects.
Companies lose an average of 2 to 6 months of development due to lack of scalability, with 65% of failed transactions damaging client reputation.
In 2024, 82% of blockchain recruiters reject profiles without Layer 2 skills, widening the competitive gap.
Every quarter without Polygon exposes projects to costly audits and forced migrations, risking millions in missed opportunities.
Act to scale without limits.
Complete installation and configuration of the advanced Polygon environment with Hardhat and Polygon SDK, connection to Mumbai and Mainnet RPC nodes via Alchemy or Infura, creation and deployment of the first smart contract on Polygon testnet, exploration of Layer 2 specifics such as checkpoints and Plasma, practical exercises on migrating from Ethereum to Polygon, transaction validation with code review by the trainer for a solid professional foundation.
Writing complex Solidity smart contracts tailored to Polygon with gas optimization, integration of ethers.js for secure frontend-backend interactions, implementation of advanced patterns such as upgradeable proxies and factories, exhaustive unit tests with Hardhat and Chai, multi-chain deployment with automated scripts, real enterprise cases like ERC20/721 tokens on Polygon, production of tested and documented deliverables for a certifying portfolio.
Configuration of official Polygon bridges for bidirectional ETH/MATIC and ERC token transfers, use of PoS Bridge for secure lock/mint operations, exploration of Plasma Bridge for full withdrawals, development of user interfaces with Web3Modal and WalletConnect, simulation of high-load cross-chain scenarios, security risk management such as reentrancy, exercises on your red thread project with real-time monitoring, creation of enterprise traceability dashboards.
Deep dive into Polygon zkEVM for zero-knowledge proofs and infinite scalability, configuration of AggLayer for ZK chain interoperability, advanced contract optimization with Slither and gas profilers, implementation of transaction batching and state channels, performance benchmarks vs Ethereum L1, practical workshops on refactoring existing dApps to Polygon, development of enterprise solutions like scalable DeFi, deliverables including quantified optimization reports.
CI/CD automation for Polygon with GitHub Actions and Vercel, serverless dApp deployment with IPFS and Polygon Edge, integration of The Graph subgraphs for fast indexing queries, monitoring setup with Sentry and Tenderly for real-time alerts, smart contract security audits via Slither and Mythril, finalization of the red thread project with high availability, delivery of Qualiopi certificates and post-training roadmap for immediate enterprise integration.
The Training Polygon - Developing Scalable Layer 2 dApps 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.
For the smooth delivery of the Training Polygon - Developing Scalable Layer 2 dApps program, the following equipment is required:
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.
Assessment of skills acquired during the Training Polygon - Developing Scalable Layer 2 dApps program is performed through:
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.
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.
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.
Each trainer is validated on three criteria: hands-on field expertise, proven pedagogy and alignment with your industry.
30-minute video call between you and the selected trainer to validate the fit, adjust content and clear any final doubts.
No recycled slides. The syllabus is reworked from your real cases: tools, constraints, vocabulary, ongoing projects.
Live evaluations, 30/90/180-day check-ins and a consolidation plan. If the impact misses the mark, we rework it.
A simple promise: you don't pay to discover the trainer on day one. Everything is validated upfront, by you.
Blockchain & Web3Industry-certified
Blockchain & Web3Industry-certified
Blockchain & Web3Industry-certified
Blockchain & Web3Industry-certified
Blockchain & Web3Industry-certified
Blockchain & Web3Industry-certified
Storage & backupIndustry-certified
Storage & backupIndustry-certified
Storage & backupIndustry-certified
Social mediaIndustry-certified
Social mediaIndustry-certified
Social mediaIndustry-certifiedAvailable on-site and remotely. Pick your city to see the local training center.
30 minutes with a learning advisor. No commitment. No sales pitch dressed up as a demo.
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