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
Build a RAG-Based AI System for a Large Arabic Text Corpus Category: AI Model Development, API Integration, Elasticsearch, FastAPI, LangChain, Large Language Model, Machine Learning (ML), Natural Language Processing, OpenAI, Python Budget: $750 - $1500 USD
3D Printed Award Design Category: 3D Animation, 3D CAD, 3D Design, 3D Graphic Design, 3D Illustration, 3D Modelling, 3D Print Design, 3D Printing, 3D Rendering, Solidworks Budget: $250 - $750 USD
Carcaradon Sanguinary Guard 3D Model Category: 3D Animation, 3D Art, 3D Graphic Design, 3D Illustration, 3D Modelling, 3D Rendering, 3D Visualization, 3ds Max Budget: $30 - $250 USD
30-Apr-2026 21:43 GMT
APA Dissertation Editing and Formatting Category: Academic Writing, Content Writing, Copy Editing, Editing, English Grammar, Proofreading, Research Writing, Technical Writing Budget: $250 - $750 USD
Targeted YouTube Views With Ads Category: Digital Marketing, Facebook Marketing, Google Ads, Google Adwords, Internet Marketing, Marketing, PPC Marketing, Social Media Marketing Budget: ₹600 - ₹1500 INR
