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Training Polygon - Developing Scalable Layer 2 dApps

Ref: ELL282
10 people max.
From $5,775 HT / per person
In-company rate from 2 attendees: from $10,395 for the whole teamUp to 8 attendees for less than the price of 2 individual seats.
On-site on request · +$540 with certification exam
5 days
Onsite

Don't let this gap widen

Why this program matters

  • 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.

Célian Lebacle, Learni trainer · Web & mobile expert
Célian Lebacle

Learni trainer · Web & mobile expert

73%productivity gap
×3cost of inaction

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Microsoft
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Learning objectives

  • Master Polygon SDK to deploy professional scalable smart contracts
  • Develop optimized dApps on Polygon with advanced state management
  • Implement Ethereum-Polygon cross-chain bridges for secure transfers
  • Design certifying Layer 2 architectures for blockchain enterprises
  • Optimize gas costs and performance of Polygon applications
  • Integrate Polygon into professional blockchain DevOps stacks
  • Deploy Polygon solutions in production with advanced monitoring
A child walking to school with a backpack
Our social commitment

A school kit donated to a child for every training booked

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
Enroll and offer a kit

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 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.

Célian Lebacle, Learni trainer · Web & mobile expert
Célian Lebacle

Learni trainer · Web & mobile expert

73%productivity gap
×3cost of inaction

Program

Module 1Polygon Fundamentals: Environment Setup and Initial Deployment (Hardhat, Polygon SDK, Alchemy)

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.

Module 2Advanced Polygon Development: Optimized Smart Contracts and Interactions (Solidity, ethers.js)

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.

Module 3Polygon Bridges and Cross-Chain: Secure Ethereum-Polygon Transfers (PoS Bridge, Plasma Bridge)

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.

Module 4Polygon Scaling and Optimization: zk-Rollups and Performance (Polygon zkEVM, AggLayer)

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.

Module 5Polygon Production Deployment: DevOps and Monitoring (CI/CD, The Graph, Sentry)

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.

Evaluation method

  • Multiple-choice quiz to validate learning outcomes at the end of the training
  • Continuous evaluation through practical blockchain exercises
  • Defense of the red thread Polygon dApp project in front of the trainer

Learning method

  • Courses led by an active Polygon expert trainer
  • Practical exercises on real enterprise blockchain cases
  • Progressive red thread project on Polygon throughout the training
  • Complete course materials and source code provided to each participant

Methods, materials and delivery

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.

Equipment required

For the smooth delivery of the Training Polygon - Developing Scalable Layer 2 dApps 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 Polygon - Developing Scalable Layer 2 dApps 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

Which tools are used in Polygon training?+
Hands-on work runs on hardhat, polygon SDK, alchemy, solidity, ethers.js and poS Bridge. Those tools come from the Polygon program itself, delivered on site over 5 days, so participants practise on the stack they will use at work.
What can participants do after Polygon training?+
They can master Polygon SDK to deploy professional scalable smart contracts, develop optimized dApps on Polygon with advanced state management and implement Ethereum-Polygon cross-chain bridges for secure transfers. Those are the stated objectives of the Polygon program at Advanced level, checked by the end-of-session assessment.
What does the Polygon program cover, day by day?+
Day 1: Polygon Fundamentals: Environment Setup and Initial Deployment (Hardhat, Polygon SDK, Alchemy). Day 2: Advanced Polygon Development: Optimized Smart Contracts and Interactions (Solidity, ethers.js). Day 3: Polygon Bridges and Cross-Chain: Secure Ethereum-Polygon Transfers (PoS Bridge, Plasma Bridge). Day 4: Polygon Scaling and Optimization: zk-Rollups and Performance (Polygon zkEVM, AggLayer). Day 5: Polygon Production Deployment: DevOps and Monitoring (CI/CD, The Graph, Sentry). The Polygon program runs over 5 days, delivered on site.
How is Polygon training assessed?+
Assessment relies on multiple-choice quiz to validate learning outcomes at the end of the training, continuous evaluation through practical blockchain exercises and defense of the red thread Polygon dApp project in front of the trainer. Learni issues a completion certificate together with the individual assessment report at the end of the Polygon program, which an L&D team can file as evidence.
How much does Polygon training cost per participant?+
$5,775 (USD) per participant. A detailed quote is sent within one business day, and team pricing applies from the second participant.
How long does Polygon training take?+
5 days, available live online (US time zones) or on-site at your offices. Half-day tracks spread over several weeks are possible so the team stays operational.
Who pays for Polygon training?+
Most US teams pay directly through their company L&D or training budget. Learni invoices in US dollars and accepts bank transfer (ACH/wire) or card, with volume pricing for teams. A purchase order is welcome.
What do participants need to know before Polygon training?+
Mastery of Solidity, Ethereum, Web3.js, Node.js, and smart contract deployment.
Is a certificate issued after Polygon training?+
Yes. A Learni completion certificate is issued, along with the individual evaluation report. Learni is a certified training provider and prepares for third-party certifications, but does not award them itself.
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