Hire Dedicated Blockchain Devs
Hire Blockchain Developers Who Write Contracts That Survive Audit
Most blockchain work fails at the same place: code that shipped before anyone tried to break it. Stallyons is a Delaware-registered US company whose senior engineers write contracts, test them against forks and prepare them for audit, on hours you set.
Triple Protection Guarantee
- US-Registered Entity
- Signed IP Assignment
- Senior Solidity Devs
Triple Protection Guarantee:
- US-Registered Entity
- Signed IP Assignment
- Senior Solidity Devs
Engineers On Staff
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Avg. Engineer Exp.
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Years In Business
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Why Contracts Fail
Audit Readiness
Not Optional
Senior Engineers
Vetted Only
Gas Optimisation
Every Call
Chain Choice
Costed First
Upgrade Path
Set Early
Key Management
Multisig Only
Test Coverage
Fork Tested
Communication Rhythm
Daily Sync
Wallet & dApp
Integrated
IP Assignment
Signed
Delivery Overlap
Fixed
Hours
Code & IP Owner
You
Trusted By Startups
What Hiring Blockchain Developers Actually Means
Blockchain developer covers at least three jobs. One writes the contracts: Solidity, tests, upgrade paths and the security review that follows. One builds the application around them, connecting wallets, signing transactions and keeping a front end honest about what is pending. One runs the infrastructure: nodes, indexers, subgraphs and the alerts that catch a problem while it is still cheap. Hiring goes wrong when a brief asks one person for all three.
Stallyons is registered in Delaware as a US company, and our senior engineers work inside a time-zone window you set, with four-plus hours of daily overlap. You sign a US contract, run diligence on a US entity and pay one US invoice. The engineers on your account average four-plus years of production work across smart contracts, wallet and dApp integration and chain infrastructure, backed by twelve-plus years of delivery across six continents, for founders, CTOs and product leaders worldwide.
What Blockchain Devs Cover
Contracts written to be audited: Solidity a reviewer can follow, checks-effects-interactions applied by default, access control that is explicit, and a test suite that already covers what an auditor will ask about.
Security treated as the main work: reentrancy, integer and access-control paths reviewed, static analysis and fuzzing in CI, and mainnet forks used to rehearse deployment before it costs anyone real funds.
Gas costed as a feature: storage layout, loops, events and calldata reviewed for what each transaction actually costs your users, because a contract nobody can afford to call is one nobody calls.
Chain selection argued out loud: Ethereum, BSC, Polygon or an L2 chosen on fees, finality, tooling and where your users already hold assets, then written down with the trade-offs.
Upgrade paths decided before deployment: proxy pattern or immutability, who holds the admin keys, what a migration involves, and how a fix reaches users if something is found.
Wallet and dApp work that behaves: connect flows, network switching, honest pending states, failed transactions explained in words, and a front end that never lies about what is confirmed.
Why Product Teams Choose Dedicated Blockchain Developers
- Ask when the security review happens. If it is scheduled after the deploy, it is not a review, it is an incident report with a nicer name on the invoice.
- Ask them to explain reentrancy unprompted, then to point at where they defend against it in their own code. The second half is the part that actually matters.
- Ask what a transaction costs. Anyone who has shipped to mainnet talks about storage, loops and calldata before they talk about which chain is fastest.
- Ask how they would upgrade. Proxy, migration or deliberately immutable are all valid answers; not having decided before deployment is the one that costs you later.
- Ask who holds the keys. Deployer wallets, admin roles and multisig thresholds should be written down before launch, not worked out during an incident.
- Ask what they test against. A fork of mainnet with real balances finds problems that a clean local chain and a happy-path test suite never will.
How To Hire Blockchain Developers Safely
Every engagement starts with a free 45-minute technical session. No slide deck, no sales script. You bring the product, the chain constraints and the timeline; you leave with a recommended approach, a scope and a plan.
We are selective about new engagements and cap how many we run at once, because the vetting is the product. If we cannot staff your contract work with engineers we would vouch for, we will say so.
Why Clients Choose Us
Full
Written IP Transfer
USA
Contract Entity
Yours
Repos & Contracts
Named
Senior Level
Ready to get your contracts written and audited?
What Blockchain Devs Build
What You Can Build With Blockchain Developers
Blockchain work suits problems where the ledger is the point and the code has to hold up in public. These are the builds we take on most often, each with an agreed scope, an overlap window and a security review.
Smart Contract Builds
Solidity, tests, deployment scripts
On Mainnet
Token Launches
ERC-20, vesting, distribution
Verified Code
NFT Platforms
ERC-721, ERC-1155, minting, royalties
Minting
DeFi Protocol Builds
Staking, lending, liquidity
Audited Before Live
Web3 dApps
Wallet connect, signing, state
Users Ready
Wallet Integration
MetaMask, WalletConnect, keys
Signed In
Chain Integrations
RPC nodes, indexers, subgraphs
Linked
Security & Audit Prep
Reentrancy, access control, fuzz tests
Sign-Off
Contract Upgrades
Proxies, migrations, redeploys
Kept Movable
Support & Monitoring
Events, alerts, incident response
Kept Running
Not sure which chain your product needs? Let's map it out.
Common Challenges
Why Do Blockchain Projects Fail?
Six failure patterns behind almost every blockchain post-mortem. None of them are about the chain that was chosen.
Unaudited Deploy
01
Contracts go live because a launch date was announced, with the security review pencilled in for later. Once funds are in, every fix becomes a migration and every hour of delay is public.
Reentrancy Left Open
02
An external call made before the balance is updated, and a familiar drain follows. The pattern is decades old and still ships, usually in the untested path.
Gas Costs Ignored
03
Storage written where memory would do, loops over arrays that grow forever. It works on a testnet and prices real users out of the feature at peak.
No Upgrade Path
04
Immutable was chosen by default rather than on purpose. A small bug becomes a redeploy, a migration, and a request that every holder move to a new address.
Private Keys Mishandled
05
A deployer key on a laptop, an admin role held by one person, no multisig and no recovery plan. The contract is fine; the thing controlling it is a single point of failure.
The Wrong Chain Chosen
06
A chain picked for its headline fees, then found to have thin tooling, slow finality or no users holding what you need. Moving later costs more.
Seen any of these before? Let's do it properly.
Our Blockchain Roles
Six Ways To Hire Blockchain Developers
Six ways to add blockchain capacity from one accountable vendor. Run one, or run several in parallel under a single contract.
Dedicated Blockchain Devs
01
Named engineers who join your team, your board and your standups, working to your review rules, with a lead who reports into you rather than around you.
Smart Contract Builds
02
Solidity written for review: explicit access control, a full test suite, deployment scripts under version control, and documentation an auditor can read without a call.
Audit Prep & Hardening
03
Static analysis, fuzzing and fork testing before you pay for an external audit, so the report comes back with findings you have not already seen.
Token & NFT Launch Work
04
ERC-20, ERC-721 and ERC-1155 work with vesting, minting rules and royalties written into the contract rather than promised in the announcement.
dApp & Wallet Frontends
05
Connect flows, network switching, transaction states and error messages that tell a user what actually happened, built on your existing front end.
Chain Migration & Support
06
Contract upgrades, chain migrations, node and indexer operations, and monitoring that pages a human when an event stops firing or a balance moves unexpectedly.
Not sure which blockchain engagement fits? Let's scope it together.
Why Choose Us
What Makes Hiring Blockchain Developers Different
The details that decide whether a contract survives its first audit and its first real users.
A US Legal Entity
01
Stallyons is registered in Delaware. Your contract, your invoice and your legal recourse sit with a US company, not an unknown one.
Security Before Ship
02
Review, static analysis and fuzzing happen while the code is being written, not in the week before launch when nothing can change.
Overlap You Set
03
You choose the hours we share with your working day, and stand-ups, reviews and escalations all happen inside that window.
Gas Costs Designed
04
Storage layout, loops and calldata are decided with a cost per transaction in mind, so your users are not priced out of the feature you built.
Fork Rehearsed
05
Deployments are rehearsed against a mainnet fork with real balances before anything touches production.
One Contract
06
One contract covers the engagement, so procurement, legal and finance each deal with a single named counterparty.
Ready to see how we run a blockchain build here?
Our Process
From First Call To Blockchain Delivery In Six Steps
A hiring process built to surface security and chain risk before anyone writes a contract.
Discovery
Understand the product, chain, hours and budget
Scoping
Agree the chain, scope and audit approach
Select
Meet and approve the engineers on your account
Contracting
NDA, IP assignment, access and onboarding
Deliver
Work on your board, reviewed on merge
Review & Scale
Regular reviews, adjust the scope as needed
Want to see how this maps to your roadmap?
Technology Stack
The Full Stack Our Blockchain Developers Use
Modern, battle-tested tools across contracts, chains, wallets, front ends and the infrastructure behind them.
Contract Layer
Solidity 0.8.x
Hardhat Suite
Foundry / Forge
OpenZeppelin
Upgradeable
Chains & Test Networks
Ethereum L1
Polygon / Base
BSC / opBNB
Arbitrum
Sepolia Testnets
dApp & Wallets
React / Next.js
TypeScript SDK
ethers.js / wagmi
WalletConnect
MetaMask & Ledger Keys
Security & Tests
Slither Analysis
Fuzz Tests
Echidna Fuzz
Mainnet Fork Tests
Gas Profiling Runs
Infra & Data
AWS / GCP Nodes
Docker / K8s
Alchemy / Infura
The Graph Subgraphs
IPFS / Arweave Data
Industries We Serve
Blockchain Developers For Industries With Real Rules
Engineers who already know your custody, reporting and compliance constraints spend month one building, not asking.
Fintech & Payments
Payments, custody, settlement
Healthcare & HealthTech
Consent records, audit trails
Retail & E-Commerce
Loyalty tokens, provenance logs
EdTech & Learning
Credentials, certificates on chain
SaaS & Digital Products
Wallet login, on-chain billing
Logistics & Supply Chain
Provenance, custody handoffs
Manufacturing & IoT
Parts provenance, certificates
Agencies & Consultancies
White-label Web3 capacity
We know your industry. Let's build the blockchain plan.
How We Compare
Hire Blockchain Developers vs Agency vs Freelance
An honest look at your three blockchain options.
| Capability | In-House Solidity Hire | Freelance Marketplace | Generalist Dev Agency | Stallyons Technologies |
|---|---|---|---|---|
| Security Review Timing | ✕One Person's View | After Deploy | Not Offered | While Code Is Written |
| Gas Optimisation Work | When Time Allows | ✕Not Considered | ✕Rarely Costed | Designed Per Call |
| Mainnet Fork Testing | Sometimes | ✕Local Chain Only | Skipped | Every Deployment |
| Upgrade Path Planning | Team Dependent | ✕Decided Late | Ad Hoc | Agreed Before Launch |
| Key Custody Rules | Informal | ✕Undocumented | On Request | Multisig And Written |
| Real Overlap Hours | Same Time Zone | ✕Whenever | ✕Business Hours | Agreed Overlap |
| Contracting Entity | Your Payroll | ✕Platform Terms | Local Entity | US-Registered LLC |
| Code And IP Ownership | Employment Terms | ✕Platform Default | ✕On Request | Signed Before Access |
See the difference for yourself
Complete Engagement
Everything Included When You Hire Blockchain Developers
From Scoping to Contracting to Delivery, One Vendor
Here's everything included when you hire blockchain developers:
All-Inclusive Blockchain Delivery: No Hidden Fees, No Surprises.
Every blockchain engagement includes all eight components above. One contract, one senior team, one predictable cost, no vendor sprawl.
🔒 No obligation. We'll deliver a detailed proposal within 48 hours.
Plus, Get These Free Bonuses
Free Contract Read
A written read on your contracts: access control, reentrancy exposure, gas behaviour, upgrade options and the three changes worth making before an audit.
Included Free
Delivery Plan & Estimate
A phased delivery plan with scope, milestones, a stack recommendation and a transparent, itemized estimate for the engagement.
Included Free
Free Chain Comparison
A written comparison of the chains that fit your product on fees, finality, tooling and where your users already are, with the trade-offs.
Included Free
Risk-Free Partnership
Our Blockchain Delivery Promise
We stand behind every engagement with commitments that protect your investment.
01
Scope Agreed First
Scope, model, working hours and cost structure are written down and agreed before contracting, so nothing is discovered later.
02
Built to Last
Senior engineers, code review, automated and fuzz tests, static analysis and security review, and clean, documented code you own.
03
IP And Access Protected
NDA and IP assignment are signed before access, permissions are scoped per person, and your accounts stay under your control.
Start your blockchain build with confidence, backed by our Triple Protection Guarantee.
Track Record
Engagements That Ship, Scale, and Compound
500+
Projects Delivered
29+
Service Categories
81%
Repeat Client Rate
4.9 ★
Clutch Rating
"We came to Stallyons after burning two years and four vendors on a multi-platform launch that kept slipping. They scoped it end-to-end — web app, iOS, Android, an AI summarization layer, and a Shopify integration — and shipped it in 22 weeks. One team, one budget, one quality bar. We've handed them three more engagements since."
Mark Sawyer
CEO/Founder
PlatinumLED
"Stallyons rebuilt our customer-facing portal, integrated three legacy systems, shipped an AI document analysis pipeline, and brought our compliance posture to SOC 2 — all under one engagement. The senior engineers on the team have shipped at companies five times our size. It's the best vendor decision we've made in a decade."
Mark Sawyer
CEO/Founder
PlatinumLED
FAQ
Frequently Asked Questions About Hiring Blockchain
Three jobs share the title. Contract engineers write and test the Solidity that holds your logic and your funds. Application engineers build the dApp around it: wallet connection, signing, transaction states and the front end. Infrastructure engineers run nodes, indexers and subgraphs so the product can read the chain quickly. Most teams need at least two of the three, and few people are strong at all of them.
A smart contract developer works on chain: Solidity, tests, gas, access control, upgrade patterns and the security review that decides whether any of it is safe to deploy. A Web3 developer usually means the application side, connecting wallets, signing transactions and presenting chain state to a user who does not want to think about blocks. The skills overlap less than the titles suggest. If funds sit in your contract, hire the first one first.
Rates move with seniority, chain and how much of the work holds funds, because contract work is priced against the cost of getting it wrong. A rate quoted before anyone has read the spec is a guess. External audits are a separate line item, and budgeting for one from the start is cheaper than discovering you need it. We scope first and itemize.
Ask who you are contracting with and under which country’s law. Ask to meet the engineers who will actually do the work, not the ones in the pitch deck. Check when IP assignment gets signed, how access is granted and revoked, what the review standard is, and what happens when someone leaves. A vendor who answers those without hedging is usually the safer buy.
You do, from the first commit. NDA and IP assignment are signed before anyone gets repository or key access, with no licence-back and no shared ownership. Repositories, deployment scripts, test suites and documentation live in your own accounts, and admin keys stay under your control throughout.
No. We do not take on trading bots, algorithmic or automated trading systems, or broker and exchange integrations that place orders. That is a standing scope decision and it does not change per project. We do build the platform side: contracts, wallets, dApps, token and NFT work, staking and lending protocols, and the infrastructure behind them.
It depends on fees, finality, tooling and where your users already hold assets, roughly in that order. Ethereum buys the deepest tooling and the highest costs. Polygon, BSC and the L2s cut fees and change the trade-offs around liquidity and support. We write the comparison down with the reasons before anyone starts, so the decision is yours.
The common ones are unclear scope, juniors replacing the seniors you met, no shared working hours, unsigned IP and knowledge disappearing when someone leaves. We address them the same way each time: written scope, named engineers you approve, an agreed overlap window, IP signed before access, and documented handover before anyone rolls off.
Still have questions? Let's talk.
Schedule an appointment with us today!
Ready to Hire Blockchain Developers You Can Audit?
Get a free consultation. We'll discuss your product, recommend a chain and a scope, and send a detailed written proposal.
