Smart Contract Development
Solidity contracts written to be audited, not just deployed.
- Solidity and EVM development
- Gas optimisation
- Upgrade and proxy patterns
Emerging Technology
Blockchain Where It Genuinely Earns Its Place
Most problems presented as blockchain problems are solved better by a database. RASPSYS builds distributed ledger solutions where trustlessness or shared-state verification actually matter — and says so when they do not.
What We Deliver
What We Deliver With Blockchain Development
We will tell you early if a conventional database solves your problem for a tenth of the cost. That conversation saves more money than the build.
dApp Development
Front-ends that make a contract usable by non-specialists.
- Web3 and wallet integration
- Transaction state handling
- Fallback and error UX
Enterprise DLT
Permissioned ledgers for multi-party business processes.
- Hyperledger Fabric networks
- Consortium governance model
- Private channel design
Security Review
The failure mode here is irreversible, so review is not optional.
- Reentrancy and overflow analysis
- Access control review
- Third-party audit preparation
System Integration
Connect on-chain events to the business systems that must react.
- Event listener services
- CRM and ERP integration
- Off-chain data oracles
Traceability Solutions
Supply chain and provenance where multiple parties must agree.
- Asset provenance tracking
- Multi-party verification
- Immutable audit records
How We Work
Our Blockchain Development Delivery Approach
A structured engagement model that de-risks delivery and gets working output into your team's hands early.
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Scope
We agree the requirement, the users and what a first shippable slice looks like.
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Design
Architecture, data model and interface contracts settled before building.
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Build
Iterative development with automated tests written alongside.
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Verify
Performance, security and cross-browser or cross-device testing.
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Hand Over
Documentation, deployment config and team enablement.
Not Sure Blockchain Is the Right Answer?
Most engagements start with a short feasibility call. RASPSYS LLP will tell you plainly if a conventional solution serves you better.
Why RASPSYS
Why Clients Choose RASPSYS LLP for Blockchain Development
We deliver for clients across the UK, US, UAE, Canada, and Australia - with teams that work in your time zone.
Honest Assessment
We have talked clients out of blockchain projects. A database is often the right answer.
Security-First
Deployed contract bugs cannot be patched away; review happens before deployment.
Global Delivery
Supporting clients across the UK, US, UAE, Canada and Australia.
FAQs
Frequently Asked Questions
The questions we are asked most often about Blockchain Development.
Often not, and we would rather say so at the proposal stage. Blockchain earns its cost when multiple parties who do not fully trust each other must agree on shared state without a central authority. If one organisation controls the data, a database with a good audit log is cheaper, faster and easier to operate.
For enterprise processes, almost always permissioned - Hyperledger Fabric or similar - because you need known participants, privacy between parties and predictable costs. Public chains make sense when you need open verifiability or are issuing a public asset.
By treating deployment as irreversible, because it is. Contracts get internal review against the known failure classes - reentrancy, integer issues, access control, oracle manipulation - plus comprehensive test coverage. For anything holding meaningful value we recommend an independent third-party audit before mainnet.
More than an equivalent conventional build, which is why the first question matters. A focused smart contract with a front-end typically runs 10-16 weeks; a permissioned consortium network is a larger programme because governance between parties takes longer to agree than the technology does to build.
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Related Services
Ready to Find Out Whether Blockchain Fits?
Book a free 30-minute call with a RASPSYS consultant.
We will assess the use case honestly, including whether a database would do.