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NUEXUS Technologies
Web3 integration
Blockchain Solutions

Web3 integration with your stack

Connect your existing apps, payments and data to on-chain logic without rebuilding everything.

We bridge your current systems to blockchain networks: wiring back-end services to contracts, listening to on-chain events, and reconciling on-chain and off-chain state. We integrate node providers (Alchemy, Infura, QuickNode), oracles (Chainlink) for external data, and account abstraction for smoother user flows. The goal is to add the on-chain capabilities you need while keeping the rest of your stack intact.

What you get

Included in this service

Back-end to chain bridge

Services that submit, sign and track transactions reliably.

Event listeners

Webhooks and indexers that keep your database in sync with the chain.

Oracle integration

Chainlink and custom oracles feed off-chain data to contracts safely.

State reconciliation

Reliable handling of reorgs, retries and idempotency.

What you walk away with

  • Integration services and APIs
  • Event-listening and sync layer
  • Node provider and oracle configuration
  • Integration test suite and documentation
  • Enablement session
  • Deployment and rollback plan
How we engage

A clear path from problem to outcome

01

Discovery and protocol selection

We map your use case, trust model and stakeholders, then choose the right chain and consensus: public EVM (Ethereum, Polygon, Base, Arbitrum), a permissioned ledger (Hyperledger Fabric, Quorum), or a Layer 2. We confirm whether a blockchain is actually warranted before any code is written.

02

Architecture and threat modelling

We design the on-chain and off-chain split, data and key-management model, gas and fee strategy, and upgrade path. Every contract is threat-modelled against known attack classes (reentrancy, access control, oracle manipulation) so security is built in, not bolted on.

03

Build, test and audit

We develop in Solidity, Vyper or chaincode with full unit, fork and invariant test coverage using Foundry or Hardhat. Contracts go through static analysis (Slither), fuzzing and an internal security review before any deployment to a public or production network.

04

Deploy, verify and operate

We deploy with reproducible scripts, verify source on the explorer, and hand over runbooks, monitoring and indexing (subgraphs, event listeners). Optional managed operations cover key rotation, upgrades and incident response after go-live.

Frequently asked questions

More Blockchain Solutions capabilities

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