Multi-Chain Wallet Monitoring Dashboard

We currently operate a production wallet monitoring dashboard that tracks Ethereum wallets (balances + transactions).

We are looking for an experienced blockchain/backend developer to extend this system to support multiple chains, including:

Bitcoin/TRON/BNB Chain (Optionally others like Polygon, Solana, etc.)

The goal is a single dashboard capable of monitoring multiple wallet types across different chains with reliable, real-time or near-real-time updates.

Scope of Work

Analyze existing ETH wallet monitoring logic
Design a multi-chain abstraction layer
Implement wallet monitoring for:
Balance changes
Incoming / outgoing transactions
Integrate with reliable RPCs / APIs per chain
Normalize data into a common format for the dashboard
Ensure scalability (many wallets, frequent polling or streaming)

Technical Expectations

Strong experience with blockchain RPCs & APIs
Understanding of:
UTXO vs account-based chains
Rate limits & batching
Webhooks vs polling
Experience with at least 2 non-ETH chains

Nice to Have

Prior work on wallet trackers, explorers, or analytics tools
Experience with:
Blockchair / BlockCypher / TronGrid / Alchemy / QuickNode
Knowledge of indexing or event-driven architectures

Deliverables

Multi-chain wallet monitoring logic
Chain-agnostic data model
Integration guide & setup instructions
Test cases or sample monitored wallets

To Apply

Please include:
Chains you have worked with
APIs / RPC providers you have used
A brief explanation of how you would monitor BTC vs ETH wallets