Linea Hub

Daily Draw : Gateway to the ecosystem of dapps built on Linea

Transactions
+2M
Unique wallets
+150k
Transaction / s
+1

context

Gamification platform built for Consensys to drive Linea L2 ecosystem engagement — detecting on-chain and off-chain user actions to compute scores and distribute rewards through smart contracts.

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Building the fastest marketplace involves solving challenges of scalability, real-time performance, and secure financial transactions. Gamification features add complexity, requiring seamless integration while maintaining speed and security.

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Background
Team
Linea is the Layer 2 network built by Consensys on Ethereum, secured by zero-knowledge proofs. It delivers low-cost, fast, EVM-native infrastructure for dApps while inheriting Ethereum's security guarantees, enabling seamless deployment of existing smart contracts and onboarding of new users at scale.
4-person embedded team — 1 UI/frontend developer, 1 backend/infrastructure developer, 1 smart contract developer, 1 product manager. Beyond execution: code quality, technical documentation, sprint planning, reporting, and coordination with security audit firms engaged by Consensys on the program.
As part of the Linea Hub launch, Consensys planned a gamification platform to drive ecosystem engagement around TPS growth, user acquisition, and user retention. The system needed to detect on-chain and off-chain actions, compute scores against configurable rules, and feed results into smart contracts distributing rewards. Avicenne joined the Linea product team initially for backend and smart contract development — scope quickly expanded to two products delivered in parallel: Linea User Hub and Linea Dev Hub.
Engagement
Consensys hired Avicenne for continuous engineering support across reward system implementation, Web3 integrations, backend, and frontend development.
Background
Linea is the Layer 2 network built by Consensys on Ethereum, secured by zero-knowledge proofs. It delivers low-cost, fast, EVM-native infrastructure for dApps while inheriting Ethereum's security guarantees, enabling seamless deployment of existing smart contracts and onboarding of new users at scale.
As part of the Linea Hub launch, Consensys planned a gamification platform to drive ecosystem engagement around TPS growth, user acquisition, and user retention. The system needed to detect on-chain and off-chain actions, compute scores against configurable rules, and feed results into smart contracts distributing rewards. Avicenne joined the Linea product team initially for backend and smart contract development — scope quickly expanded to two products delivered in parallel: Linea User Hub and Linea Dev Hub.
Team
4-person embedded team — 1 UI/frontend developer, 1 backend/infrastructure developer, 1 smart contract developer, 1 product manager. Beyond execution: code quality, technical documentation, sprint planning, reporting, and coordination with security audit firms engaged by Consensys on the program.
Engagement
Consensys hired Avicenne for continuous engineering support across reward system implementation, Web3 integrations, backend, and frontend development.
Focus area
Delivery
  • Project scope alignment with the in-house team
  • Sprint planning and delivery
  • Agile iteration on product and design feedback
Frontend & Web3
  • Frontend development
  • Web3 integrations
  • Code review and optimization input
Backend
  • Scalable backend architecture
  • Backend development
Smart Contracts
  • Smart contract development, audit-ready
challenge
Building a high-throughput on-chain rewards engine


Computing spins from on-chain activity.
Automatic daily prize setup.
Alchemy webhooks for real-time detection of ERC-20 transfers, swaps, liquidity provisioning, and MetaMask Card transactions across integrated dApps.
Custom SQL indexes aggregating multi-source activity into per-user spin entitlements.
Full unit test coverage across all spin-earning action paths.
Gelato Functions scheduling daily on-chain contract execution with no manual intervention.
Automated API calls triggering prize pool replenishment on each daily cycle.
Zero manual touchpoints across the full prize lifecycle.

Duplicate event processing.
Transaction hash tracking at event ingestion to block double-counting at the source.
Database-level uniqueness constraints enforcing idempotency at the storage layer.
End-to-end idempotency patterns applied across the full event processing pipeline.
Focus area
Delivery
  • Project scope alignment with the in-house team
  • Sprint planning and delivery
  • Agile iteration on product and design feedback
Frontend & Web3
  • Frontend development
  • Web3 integrations
  • Code review and optimization input
Backend
  • Scalable backend architecture
  • Backend development
Smart Contracts
  • Smart contract development, audit-ready
challenge
Building a high-throughput on-chain rewards engine

Computing spins from on-chain activity.
Alchemy webhooks for real-time detection of ERC-20 transfers, swaps, liquidity provisioning, and MetaMask Card transactions across integrated dApps.
Custom SQL indexes aggregating multi-source activity into per-user spin entitlements.
Full unit test coverage across all spin-earning action paths.

Automatic daily prize setup.
Gelato Functions scheduling daily on-chain contract execution with no manual intervention.
Automated API calls triggering prize pool replenishment on each daily cycle.
Zero manual touchpoints across the full prize lifecycle.

Duplicate event processing.
Transaction hash tracking at event ingestion to block double-counting at the source.
Database-level uniqueness constraints enforcing idempotency at the storage layer.
End-to-end idempotency patterns applied across the full event processing pipeline.

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Building the fastest marketplace ever lzlzlzlzlzlz

Building the fastest marketplace involves solving challenges of scalability, real-time performance, and secure financial transactions. Gamification features add complexity, requiring seamless integration while maintaining speed and security.

Heading

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse varius enim in eros elementum tristique. Duis cursus, mi quis viverra ornare, eros dolor interdum nulla, ut commodo diam libero vitae erat. Aenean faucibus nibh et justo cursus id rutrum lorem imperdiet. Nunc ut sem vitae risus tristique posuere.

Heading

Plus icon

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse varius enim in eros elementum tristique. Duis cursus, mi quis viverra ornare, eros dolor interdum nulla, ut commodo diam libero vitae erat. Aenean faucibus nibh et justo cursus id rutrum lorem imperdiet. Nunc ut sem vitae risus tristique posuere.

Heading

Plus icon

Lorem ipsum dolor sit amet, consectetur adipiscing elit. Suspendisse varius enim in eros elementum tristique. Duis cursus, mi quis viverra ornare, eros dolor interdum nulla, ut commodo diam libero vitae erat. Aenean faucibus nibh et justo cursus id rutrum lorem imperdiet. Nunc ut sem vitae risus tristique posuere.

Results

Daily Draw

+1.8M transactions

Linea Hub

+1M visits