Blockchain & Web3 Development — Smart Contracts, Tokens, Wallets & dApps
Hurain Technologies has been engineering software since 2010 and delivers blockchain & Web3 development to businesses worldwide: remotely from India, available 24/7, on milestone-based scopes, with one project manager and full source-code ownership.
Scope typically covers smart contracts, tokens & stablecoins and wallets & custody. A first production release usually takes 10–16 weeks, and a full platform 5–9 months. Every build is scoped against virtual-asset licensing regimes (e.g. MiCA, VARA) and FATF travel rule.
Quick answer
What does Hurain Technologies build for blockchain & Web3?
Hurain Technologies builds blockchain and Web3 products — audited smart contracts, token and stablecoin systems, NFT and tokenisation platforms, custodial and MPC wallets, and dApps on Ethereum, EVM layer-2s and Solana — with security reviews and compliance-aware design for regulated markets.
Reviewed by Shahnavaz Syed, Founder · Last updated
Overview
What blockchain & Web3 with Hurain Technologies looks like
Blockchain is only worth using when shared, verifiable state or programmable assets solve a real problem — settlement, ownership, transparency or interoperability. We start by testing that fit honestly and recommend a conventional database when it's the better tool.
When on-chain is right, security dominates: contracts are immutable and hold real value. Our contracts follow audited standards (OpenZeppelin), are covered by unit, fuzz and invariant tests, and are reviewed internally before an independent audit.
For regulated businesses we pair on-chain logic with off-chain controls — KYC-gated access, travel-rule data, transaction monitoring and custody policies — so the product can pass licensing and banking-partner reviews.
Capabilities
Blockchain & Web3 features we deliver
Smart contracts
Solidity and Rust contracts with tests, gas optimisation and upgrade strategy.
Tokens & stablecoins
ERC-20/SPL tokens, mint/burn controls, allow-lists and reserve reporting.
Wallets & custody
Non-custodial, custodial and MPC wallets with policy engines.
Tokenisation & NFTs
Real-world-asset tokenisation, NFT marketplaces and on-chain ownership records.
dApp front ends
Wallet connection, transaction UX and indexers for fast on-chain data.
Compliance tooling
KYC gating, travel rule, blockchain analytics and audit trails.
Use cases
Crypto exchanges & payments
Deposit/withdrawal rails, order books and merchant crypto payments.
Real-world asset tokenisation
Real estate, funds and commodities represented on-chain.
Loyalty & ticketing
Tokenised rewards and verifiable tickets.
Supply-chain provenance
Tamper-evident records shared between partners.
Cost & timeline
How much does blockchain & Web3 cost and how long does it take?
Delivery time is agreed around your scope and split into milestones you sign off before paying. Price is driven by scope rather than a fixed rate card — these are the factors that move it most:
- Contract complexity and audit scope
- Chain(s) and bridges
- Custody model (MPC, HSM, non-custodial)
- Compliance integrations
- Indexing and data needs
- Exchange or liquidity integrations
Technology
Chains
- Ethereum
- Polygon / Base / Arbitrum
- Solana
- Hyperledger Fabric
Contracts
- Solidity
- Foundry / Hardhat
- Rust / Anchor
- OpenZeppelin
Our delivery process
- 1
Fit & design
Use-case validation, chain selection, token model and threat model.
- 2
Contracts
Contracts, tests and internal security review.
- 3
Platform build
Back end, wallets, indexers, admin and front end.
- 4
Audit & testnet
Independent audit, fixes and public testnet.
- 5
Mainnet & operate
Launch, monitoring, incident response and upgrades.
Standards we build to
- Virtual-asset licensing regimes (e.g. MiCA, VARA)
- FATF travel rule
- AML/CFT and sanctions screening
Live Demos
A selection of platforms we've designed and built
Real, working builds across fintech, compliance, healthcare, and commerce — the same engineering team would build your blockchain & web3 project.
Nexa
SaaS-style product dashboard and workflow UI for a fintech platform.
Open live demoDebt Management
Debt management and collections tracking platform.
Open live demoAML Compliance Suite
Anti-money-laundering compliance and case-monitoring suite.
Open live demoUMARSOB Data
Android VTU/data-reseller platform with wallet, agent/referral system, and admin panel.
Open live demoHospital Management
Hospital/clinic management system covering patient records, appointments, staff, and billing.
Open live demoDMI CHW App
Offline-first Community Health Worker counseling app with a central management platform, built for an NGO client.
Open live demoHomemakers Pro
Enterprise operations system for a domestic staffing agency covering bookings, staff, and client management.
Open live demoE-Commerce (Multi-Locale)
E-commerce storefront demo with multi-language, locale-based support.
Open live demoMars
Legal web application prototype.
Open live demoBusiness value
What Blockchain & Web3 does for your business
Benefits for your company
- Secure, auditable systems. Built with security review, key management and compliance in mind.
- Own your platform. Custom blockchain products under your brand and licence.
- Integration ready. Connects with wallets, exchanges, payment and KYC providers.
How it can earn or save money
- Fees on activity. Transaction, listing and service fees on platform volume.
- Token and asset products. Issuance and tokenised assets open new lines of business.
- B2B services. Sell wallet, payment or compliance infrastructure to others.
Illustrative revenue and saving lines, not guaranteed results: outcomes depend on your market, licences and execution.
How we work
How we deliver Blockchain & Web3
Every blockchain & web3 engagement follows the same staged, quality-gated process — shaped around your requirements. You see progress every day, review it every week, and give written sign-off at every milestone before any payment is due.
- 01
Discover
Scope signed off- Token & protocol workshops
- Chain & custody selection
- Regulatory scoping
- Signed scope
- 02
Design
Threat model OK- Contract architecture
- Tokenomics & access roles
- Key management design
- Threat model
- 03
Build
Testnet accepted- Solidity / Rust sprints
- Testnet deployments
- Gas optimisation
- Demo every sprint
- 04
Secure & Test
Audit cleared- Unit, fuzz & invariant tests
- Independent audit coordination
- Audit fixes verified
- UAT on testnet
- 05
Deploy
Mainnet live- Mainnet deploy via multisig
- Contract verification
- Monitoring & alerts
- Go-live checklist
- 06
Handover
Keys transferred- Role-based sessions
- Recorded walkthroughs
- Admin & ops runbooks
- Documentation handover
- 07
Support
Monitoring live- Dedicated engineer
- SLA helpdesk
- Patches & upgrades
- Quarterly reviews
Client sign-off at every milestone — you approve the working result before you pay.
You always know what was done today — and what happens next
A written daily update, a weekly work overview and a live demo every sprint — so there are no surprises at milestone time.
Every working day
- What was completed today
- What is planned for tomorrow
- Blockers and decisions needed from you
- Links to builds you can try
Every Friday, with a live call in your business hours
- Features completed and demo recordings
- Progress against the current milestone
- Risks, open questions and change requests
- Plan and priorities for next week
End of every sprint and milestone
- Working software demonstrated live
- Your feedback captured in the backlog
- Quality-gate checklist shared
- Written sign-off before any payment
Payment plan
Pay only for work you have accepted
Milestones are customised to your requirements — six or more is typical, and delivery time is agreed around your scope. Every payment after the advance is released only after you have seen the working result and given written sign-off. Here is an example plan:
| Payment | Milestone & acceptance | Share |
|---|---|---|
| Advance | Contract signing Signed contract; protocol workshops and chain selection. | 10% |
| Milestone 1 | Architecture approved Contract architecture, tokenomics and threat model signed off. | 15% |
| Milestone 2 | Testnet v1 First contracts deployed and demonstrated on testnet. | 15% |
| Milestone 3 | Feature-complete testnet All contracts, dApp and admin flows running end to end. | 15% |
| Milestone 4 | Audit passed Independent audit done; every finding fixed and re-verified. | 15% |
| Milestone 5 | Mainnet launch Multisig mainnet deployment and contract verification. | 15% |
| Milestone 6 | Handover Monitoring, runbooks, training and documentation handed over. | 15% |
| Total | 100% | |
- Number of milestones and splits set around your scope
- Every milestone is a working, demonstrated result
- No payment is due until you sign off
Warranty & annual support
Protected after launch — warranty and annual support for your Blockchain & Web3 project
Go-live is where your blockchain & web3 product starts earning — so we stay accountable for it. Every project includes a free 90-day defect warranty. After that, the same team that built it keeps it secure, updated and running on a fixed annual fee agreed up front — no open-ended hourly billing, no surprise invoices.
Included free
90-day warranty
Any defect found in the first 90 days after go-live is fixed free of charge.
- Every delivered feature covered
- Fixes tested and deployed to production
- Same engineers who built it
Fixed-cost annual package
30% of project cost
per year for Annual Support & Maintenance, with a dedicated developer assigned to your blockchain & web3 platform. A fixed price, known in advance.
| Service | Included in the annual package |
|---|---|
| Dedicated developer | One named developer assigned to your product for fixes, enhancements and optimisation. |
| Bug fixes & security patches | Critical issues resolved within 24 hours; standard issues within 5 business days. |
| Upgrades & new releases | Framework, library and platform updates plus new versions of what we built, at no additional cost. |
| Helpdesk | Email and phone support for your team and administrators; 4-hour response for critical issues. |
| Backup monitoring | Daily backup checks and a quarterly restore test. |
| Security review | Periodic audit-trail review and security configuration check. |
| On-chain monitoring | Contract events, admin actions and unusual transactions watched with alerts. |
| Network & node upgrades | Hard forks, RPC and library changes tracked; contract upgrades run through the multisig. |
Source code & IP ownership
100% of the source code and IP is owned by you
For every custom blockchain & web3 project, upon full and final payment the complete source code and intellectual property are transferred to you — so you can host, maintain and enhance the system with any developer.
- Smart-contract source, tests and deployment scripts
- Contract ownership and multisig admin keys transferred to you
- Audit reports and dApp / admin source code
- Complete Git repository with full commit history
- Database schemas, migrations and seed data
- Configuration, CI/CD and deployment scripts
- API documentation and a deployment guide
No lock-in
No forced upgrades
No subscription trap
Your code lives in your own repository from the first commit.
Continuous enhancement
Launch is just the beginning — keep shipping with your own dedicated team
Your blockchain & web3 platform should get better every month, not stand still after go-live. Start with one dedicated developer working on your priorities across apps, dashboards and backend — and grow to a full team of developers and support members whenever your roadmap demands it.
Dedicated team, your way
From one developer to a full team
Pricing is based on the team members you need — tell us your requirements and we will quote your team.
- Start any time after launch
- Hire developers as you need them
- Scale up, scale down or pause
What your team can take on after launch
- Upgradeable contract releases through your multisig
- Gas optimisation of high-traffic functions
- Layer-2 and cross-chain deployments
- New contracts, tokens or chains
- dApp and admin-panel improvements
- New wallet, bridge and exchange integrations
Need more hands? Add developers and support members as your requirements grow
Start with one person and add only the roles your blockchain & web3 roadmap needs — each is quoted to your requirements.
Development team
Smart-contract auditor
Reviews every contract change before it is deployed.
Smart-contract developer
Writes, tests and upgrades contracts in Solidity or Rust.
dApp developer
Builds the wallet-connected web interfaces for your contracts.
Backend developer
Adds the APIs, business logic and data models behind new features.
QA engineer
Writes and runs manual and automated tests before every release.
DevOps engineer
Keeps pipelines, environments and deployments fast and reliable.
Support team
L1 helpdesk support executive
First contact for your users and staff — logs, triages and resolves common issues.
L2 technical support engineer
Investigates bugs, data issues and integrations, and escalates to developers with full context.
On-chain operations support
Watches contracts, gas balances and admin transactions.
Wallet & transaction support
Helps users trace stuck, failed or mis-sent transactions.
Our Approach
Our approach to development methodologies
Our approach to custom software engineering draws on a range of methodologies, each selected to match the needs of your blockchain & Web3 project.
Agile Scrum
Best for: Evolving products
Two-week sprints with a working demo at the end of each, so blockchain & Web3 priorities can change as you learn from users.
Kanban
Best for: Continuous delivery & support
A visual flow of small tasks with work-in-progress limits — ideal for maintenance, integrations and post-launch improvements.
Fixed-scope (Waterfall-style)
Best for: Well-specified builds
Requirements signed off up front with a fixed timeline and price — best when scope is clear and change is unlikely.
Lean MVP
Best for: New ventures
Build the smallest blockchain & Web3 release that proves demand, measure it with real users, then invest where the data points.
DevOps & CI/CD
Best for: Every project
Automated tests, infrastructure-as-code and push-button deployments so releases are frequent, reversible and boring.
Security-by-design (DevSecOps)
Best for: Regulated & high-value systems
Threat modelling, dependency scanning and code review built into each sprint rather than a pen test at the end.
Why we're different
What sets Hurain Technologies apart
Plenty of agencies can build blockchain & Web3. Here is what sets us apart for clients worldwide.
Engineering depth, not a reseller
Your blockchain & Web3 project is designed and built by our own in-house engineers — no hidden subcontracting chain between you and the people writing code.
Built for your market, not a template
Payments, tax, language and data-protection requirements for your target market are part of the design from day one instead of retrofitted after launch.
Transparent, senior-led delivery
A named project lead, a shared backlog, fortnightly demos and direct Slack access to the engineers — you always know what is being built and why.
Cost advantage without cutting corners
Delivering from India gives clients worldwide senior engineering at a fraction of typical onshore agency rates, with the same code-review, testing and security standards.
You own everything
Source code lives in your repository from the first commit; IP, infrastructure accounts and documentation transfer to you in full.
We stay after launch
Monitoring, updates and a support SLA mean the team that built your product is the team that keeps it running.
Flexible engagement models
How we work with blockchain & Web3 clients worldwide
Ways to work together, depending on how your team and roadmap are set up.
Dedicated Development Team
An extended team of blockchain & Web3 engineers, QA and architects working exclusively on your product, managed day-to-day by you with our engineering leadership behind them.
Best for: Long-term products and evolving roadmaps
Fixed-Cost Delivery
A clearly scoped blockchain & Web3 build with a defined timeline and price — ideal for a well-specified MVP, integration or launch product.
Best for: MVPs and clearly defined projects
Hybrid Engagement
Keep product and regulatory decisions close to your team while our specialists handle deep engineering remotely, with workshops or on-site visits at key milestones.
Best for: Enterprises and regulated businesses
Why businesses choose us
Why businesses choose Hurain Technologies
16+ years of engineering depth
Custom software engineering with in-house teams across web, mobile, cloud, AI, payments and blockchain.
Security-first by default
Encryption, least-privilege access, audit logs — and MPC/HSM custody and audited smart contracts where money is on-chain — designed in, not retrofitted.
Regulatory-aware architecture
Designed with your target market's regulatory direction in mind and built alongside your licensed local legal counsel.
Direct access, no layers
Direct Slack or Teams access to your development team during the build, and the same people for post-launch support.
Business benefits
What you gain
Faster time to market
An experienced blockchain & Web3 team with proven components means your first release ships in weeks, not quarters.
Security-first architecture
Secure from day one, rather than patched after an audit or incident.
Aligned compliance groundwork
Controls, logs and data handling built around your target market's requirements so reviews go faster.
Lower total cost of ownership
Clean, documented, tested code that your own team can maintain — plus post-launch monitoring and support.
What happens next
From your blockchain & Web3 enquiry to a working demo — in about a day
- 01Within 10 minutes
We respond to your enquiry
Send your blockchain & Web3 enquiry by form, email or WhatsApp — a few lines is enough. Our team replies within 10 minutes, any day, any time, to set up a meeting at a time that suits you.
- 02Requirements meeting
We understand your requirements
In a focused meeting we go deep on your users, features, integrations, timeline and budget — so we build exactly what your business needs. NDAs signed on request.
- 03Within 24 hours
You see a demo of your blockchain & Web3
Within 24 hours of our meeting we prepare and share a demo — so you see your blockchain & Web3 taking shape before you commit to anything.
- 04As per your budget
We share a tailored proposal
A clear proposal for your blockchain & Web3 project with scope, milestones, team and timeline — shaped around your budget, with no hidden costs and no obligation.
Available 24×7 — three 8-hour shifts, every day
FAQ
Blockchain & Web3: frequently asked questions
What is blockchain & Web3?
How long does blockchain & Web3 take?
How much does blockchain & Web3 cost?
Which blockchain should we build on?
Are your smart contracts audited?
Can a blockchain product be compliant?
Do you build the complete blockchain & Web3 solution, or only integrate with what we already use?
We are not sure about our budget yet. Can you still help?
By location
Blockchain & Web3 by country
Each country page covers local payment methods, tax, data-protection law, 24/7 support and delivery timelines.
Priority markets
Major cities
All countries
Related solutions
Related engineering services
Ready to start your blockchain & Web3 project?
Share your idea — we respond in 10 minutes, share a demo within 24 hours of our meeting, and a proposal as per your budget.