We use cookies to keep the site working, understand how it’s used, and measure our marketing. You can accept everything, reject non-essentials, or pick what’s on.
Blockchain & Web3 Development | Smart Contracts, Tokenisation · aquicksoft
Smart contracts and tokenisation platforms built for production, not hype
We develop, audit, and deploy smart contracts and blockchain-based platforms for tokenisation, DeFi protocols, digital asset management, and enterprise permissioned networks. You get audited contract code, economic modelling for your token design, and infrastructure that operates like any other production system.
What we build
Blockchain is a tool, not a destination. The question we always start with is whether a blockchain actually solves your problem better than a conventional database with strong auditability. When it does — asset provenance, multi-party settlement without a trusted intermediary, tokenisation of real-world assets, programmable compliance rules — we build it to production standards: audited contracts, upgrade patterns that do not require redeployment, gas-optimised code, and infrastructure that can be monitored and operated like any other backend service. Real outcomes: a real estate tokenisation platform with fractional ownership contracts, a whitelist-gated distribution mechanism, and a secondary market interface, an enterprise supply chain provenance system on a permissioned Hyperledger Fabric network with existing ERP integration, and a DeFi protocol with a formal security audit, a bug bounty programme, and a post-launch incident response plan that was actually used. Blockchain code is often immutable once deployed — the cost of a smart contract vulnerability is different from the cost of a backend bug. We treat audit as part of engineering, not an afterthought.
Capabilities
Smart contract development — Solidity for EVM-compatible chains, Rust for Solana and Polkadot, with upgradeable proxy patterns, access control, emergency pause mechanisms, and gas optimisation.
Security audit — formal review of contract logic against known vulnerability classes: reentrancy, integer overflow, access control flaws, oracle manipulation, front-running, and economic attack vectors.
Token design and economics — tokenomics modelling for utility, governance, and security tokens including vesting schedules, distribution curves, inflation mechanics, and regulatory classification guidance.
DeFi protocols — liquidity pool mechanics, automated market maker design, yield strategies, lending protocols, and cross-chain bridge components with focus on economic security.
NFT and digital asset platforms — minting contracts, metadata standards, royalty mechanics, collection management, and marketplace integrations.
Enterprise permissioned networks — Hyperledger Fabric channel design, Besu private networks, and R3 Corda deployments integrated with existing enterprise systems via API gateways.
On-chain and off-chain integration — oracle integrations for real-world data, IPFS and Arweave for decentralised storage, and backend APIs that bridge your conventional infrastructure with on-chain state.
Wallet and key management — multi-signature wallets, hardware security module integration for institutional custody, and user-facing wallet connection flows for consumer applications.
Testing: Foundry fuzz testing, Hardhat unit tests, Slither and Mythril for static analysis, manual audit
Tooling: IPFS, The Graph for indexing, Chainlink for oracles, Safe (formerly Gnosis Safe) for multi-sig
How we work
Problem and chain selection — we validate that a blockchain solution is justified, choose the chain based on your throughput, cost, decentralisation, and regulatory requirements, and document the rationale.
Contract architecture — upgrade strategy, access control model, emergency mechanisms, and interaction with off-chain systems designed and reviewed before any code is written.
Development and internal audit — contracts written with comprehensive NatSpec documentation, unit and fuzz tests, and a first-pass internal security review against the SCSVS (Smart Contract Security Verification Standard).
External audit — engagement of an independent auditing firm for a second opinion, with all findings reviewed and addressed before deployment. We manage this process and respond to auditor questions.
Deployment and monitoring — mainnet deployment through a staged process, event monitoring and alerting for anomalous on-chain behaviour, and an incident response plan covering the scenarios most relevant to your protocol.
Where this fits
Blockchain development makes sense for real estate and alternative asset tokenisation, cross-border settlement, supply chain provenance where multiple parties need a shared record, loyalty and rewards programmes, digital identity credentials, and DeFi protocols. It does not make sense as a way to store data that a conventional database handles fine, or when a trusted intermediary already exists and all parties are comfortable with it. We will tell you which situation you are in.
Audited smart contract code with full test coverage, NatSpec documentation, and deployment scripts.
Internal audit report and external audit report with all findings and their remediation status.
Token economics model with vesting schedule, distribution schedule, and scenario analysis.
Deployment runbook, monitoring setup for on-chain events, and an incident response plan.
Post-deployment support for three months covering any issues arising from live usage.
FAQ
How do you handle smart contract upgrades if code is immutable once deployed?
Through upgrade proxy patterns — the most common being the transparent proxy and the UUPS proxy from OpenZeppelin. The proxy contract holds the state and delegates execution to a logic contract. When an upgrade is needed, only the logic contract is replaced; the state and the contract address stay the same. We design the access control and timelock on the upgrade mechanism from the start, so upgrades require multi-signature approval and a delay that gives users time to exit if they disagree with a change.
Do we need an external security audit?
For any contract that will hold user funds or have economic value, yes. An internal review catches many issues but is subject to the same blind spots as the author. An independent audit from a specialist firm with on-chain track record is the minimum bar for responsible deployment. We work with reputable audit firms and manage the process as part of the engagement. The cost of an audit is small relative to the cost of an exploit.
What is the difference between a public chain and a permissioned blockchain?
A public chain (Ethereum, Solana) is open to any participant, provides the strongest decentralisation guarantees, and means your contracts and transactions are publicly visible. A permissioned blockchain (Hyperledger Fabric, Besu) restricts participation to known, credentialed parties, keeps transactions private between designated parties, and is operated by a consortium. Permissioned networks suit enterprise use cases where full public transparency is undesirable and all participants are known. Public chains suit applications where censorship resistance and open participation are part of the value proposition.
What happens if there is a vulnerability after deployment?
We design contracts with emergency pause mechanisms from the start, so a contract can be halted if a vulnerability is discovered before it is exploited. The upgrade proxy allows a fix to be deployed without losing state. We also recommend a bug bounty programme for public protocols — it is the most cost-effective way to incentivise responsible disclosure before a vulnerability is exploited. Our post-deployment support includes incident response guidance for exactly this scenario.
Ready to start?
Tell us the asset or process you want to put on-chain, the parties involved, and the regulatory context. You will receive a technical feasibility assessment and a fixed-price discovery quote within five business days.
