Blockchain & Smart Contract Development
Blockchain, only where it beats a database
A distributed ledger buys you one thing: a record no single participant can quietly change. That is worth paying for when several organizations have to agree on the same facts, when custody has to be provable to someone outside your company, or when value settles on-chain without an intermediary holding it. We build those systems — contracts, keys, nodes and the integrations around them — and we say so plainly when an ordinary database would serve you better.
- Audited smart contracts
- Multi-chain by design
- Security-first delivery
Chain or Database
The first thing we work out is whether you need a blockchain at all
A blockchain is slower, costlier and far harder to change than a database. You take that trade for a specific reason: several parties who do not fully trust each other need one shared record, custody or provenance has to be provable to an outsider, or value has to move without an intermediary holding it in the middle. If none of those apply to you, a relational database with signed audit trails does the job better — and we will tell you so before you spend anything.
When a chain does fit, most of the work is unglamorous. Choosing a network whose fees and time to finality suit your transaction pattern. Writing contracts that treat every input as hostile. Having them read by people who did not write them. Deciding who holds the keys, and what happens the day one is lost. Deployed code is permanent — no quiet patch, no rollback of a bad migration — so the care goes in before the deploy, not after.
- Feasibility review: chain, database, or both
- Smart contract design, implementation and tests
- Internal review and external audit preparation
- Key management, signing policy and recovery
- On-chain and off-chain data split
- Nodes, indexing, monitoring and upgrades
What We Build
What blockchain development actually involves
Eight pieces of work. Most projects need four or five of them, and part of scoping is agreeing which ones you can skip.
Feasibility & Chain Selection
Before any code, we test the premise: who the parties are, what each one needs to verify, and whether a shared database with signed audit logs would do the same job for a fraction of the cost. If a chain is warranted, the network is chosen on evidence — fees at your expected volume, time to finality, tooling maturity, and how you would get your data back out again.
Permissioned Network Design
For consortiums where the participants are known and the data is not meant to be public, we design permissioned networks: membership and identity, channels and data isolation, endorsement rules, and who operates which nodes. That last question is usually harder to settle politically than technically, and it sets the real timeline.
Smart Contract Development & Audit Prep
Contracts written to be read: small surfaces, explicit access control, no unbounded loops, nothing that assumes the caller is friendly. Unit tests, fork tests against real network state, and invariant tests that try to break the accounting rather than confirm it works. Then a clean handoff to an external auditor and the fixes that come back.
dApp & Wallet Integration
The layer users actually touch: wallet connection, signing flows that show people what they are approving in plain terms, pending and failed transaction states, and a read path served by an indexer instead of hammering an RPC node. Most on-chain products disappoint here rather than in the contract.
On-Chain Settlement & Payments
Where value moves on-chain: escrow, milestone or streaming release, multi-signature approval, and reconciliation back into your own ledger. We design the failure cases first — a stuck transaction, a chain reorganization, a fee spike, a counterparty who simply never signs — because those are the days that decide whether people keep using it.
Tokenization & Digital Assets
Issuing and tracking assets whose provenance has to hold up outside your company: certificates, credits, records of ownership, entitlements. The interesting work sits at the edges — how a real-world thing gets bound to its on-chain record, who is allowed to declare that binding wrong, and what the correction looks like when they do.
Key Management & Custody
Who can sign, under what approval, and what happens when a laptop is lost or someone leaves. We set up multi-signature or threshold signing, hardware-backed keys, separate deploy and admin roles, and a recovery procedure you have actually rehearsed. Keys cannot be reset by support — this is not a detail to leave until after launch.
Indexing, Data & Analytics
Chain data is awkward to work with: events instead of rows, reorganizations, and no joins. We build the indexing layer that turns it into something your reporting and support teams can query, keep it consistent with the chain as it moves, and apply machine learning only where it earns its keep — anomaly detection on transaction patterns, for example, rather than as a headline.
Platforms We Work With
Networks and frameworks we build on
Choosing between them is a trade: fees at your volume, time to finality, how mature the tooling is, and how easily you can hire someone to maintain it in three years. We work through that for your case rather than default to whichever chain is in the news.
NETWORKS
Ethereum
Hyperledger
Solana
Binance Smart Chain
Cardano
Polkadot
TRON
Avalanche
Where This Gets Used
The systems people actually ask us for
Twelve recurring shapes. Every one of them exists because more than one party has to rely on the same record, and none of them needs a chain if only your own systems ever read it.
Shared Ledgers Between Companies
Exchange & Trading Systems
Provenance & Digital Certificates
Lending & Settlement Protocols
On-Chain Governance & Voting
Wallets & Custody Solutions
On-Chain Payment Rails
Escrow & Milestone Release
Supply Chain Traceability
Tokenised Asset Platforms
In-Game Asset Ownership
Contract Automation & Scheduled Jobs
How We Work
What building on-chain with us looks like
Five things that decide whether an on-chain project survives contact with production.
People Who Have Deployed to Mainnet
The engineers writing your contracts have shipped to a live network and have been through an audit cycle. That matters mostly because they know what goes wrong: reentrancy, rounding that quietly leaks value, an approval that was never revoked, an admin key nobody thought to rotate.
One Team, Design Through Operations
The person choosing the network is the person writing the contracts and the person who will be paged when a node falls behind. Fewer handoffs, and no architecture that looks elegant on a slide and turns out to cost a fortune in gas at real volume.
Written to Be Audited
We assume an external auditor will read every line, so the code stays small, documented and testable before anyone is booked. That shortens the audit, reduces the number of findings, and keeps the fixes cheap instead of structural. We can arrange the audit or work with a firm you choose.
Upgradeable Where It Should Be, Frozen Where It Shouldn't
Immutability is a feature right up until you find a bug. So we decide in advance which parts are fixed forever and which sit behind a proxy or a migration path, who is allowed to trigger a change, and how much notice users get — because a contract anyone can silently swap out is not trustworthy either.
Joined Up With the Systems You Already Run
Almost nothing lives entirely on-chain. We build the unglamorous middle: indexers, webhooks, reconciliation against your ledger or ERP, and internal tooling so your support team can answer “where did this transaction go?” without reading a block explorer.
What we build with
Supporting Technologies
Chains and Networks
Blockchain Cloud
Contract Languages
Contract Tooling
Frontend Languages
Backend Languages
DevOps
Industries We Serve
Where the trust problem actually shows up
It is usually the same problem wearing different clothes: two or more organizations that need to agree on a record neither of them controls. What changes by sector is the regulator, the reporting obligation and what has to stay off the chain — all of which we scope with you per engagement.
Finance and Banking
Healthcare
Supply Chain and Freight
Real Estate
E-commerce
Games and Digital Goods
Education
Insurance
Public Sector and Registries
Media and Rights Management
Before You Commit
Not sure a blockchain is the right answer?
Tell us what has to be provable, and who has to believe it. You'll get a straight read back: a chain and which one, or a conventional system that does the same job for less. If it is the former, we can scope the contracts, the key management and the integration work from there — including the parts you would rather not pay for twice.
Vetted by the vendor, not just by us.
A partner badge is granted, not claimed. These came from Odoo.
- Odoo Partner
- Odoo Certified Consultants
Tell us what you're
trying to build
The problem, who it's for, and where you are now. That's enough for us to come back with something useful.
hello@aryavos.com
HQ
Noida, India & New York, USA
What happens after you send it
A developer reads it, not an auto-responder. Expect questions about scope and constraints first, then a suggested way to start.