ALL TECHNOLOGIES / BLOCKCHAIN
Hire blockchain developers who treat every contract as permanent
Smart contracts, wallet and chain integrations, and the backend services around them. A dedicated blockchain developer from Latin America who works your hours and writes, tests and reviews contract code as if it cannot be patched later.
TRUSTED BY TEAMS WHOSE CLOUDTASK HIRES HAVE STAYED 5 TO 8 YEARS
How it works
How do I hire a blockchain developer?
You do one thing: interview. We handle everything else.
Post the role
5 minutes. The role, the motion, the tools, the comp band. That is all we need to start.
Review your matches
3 to 5 matches in 48 hours.
Interview and hire
We coordinate interviews. On Managed Staffing, we also handle payroll and compliance across LATAM.
WHY TEAMS TRUST CLOUDTASK
What you get with every hire
Dedicated to your codebase
One blockchain developer who learns your code, your conventions and your roadmap. Not a freelancer who closes a ticket and moves on.
Same hours as your team
Latin America and the Caribbean overlap the US working day, so code review, standups and production issues get handled live.
Searched against your stack
Chain, contract language, tooling and the services around them come from your brief, and each profile is checked against them before you see it.
Replacement guarantee
24 months on Managed Staffing, 6 months on Direct Hire. If the fit is wrong, the guarantee covers the replacement search.
WHY CLOUDTASK
Staffing with numbers behind it
10,000+
hires placed
since 2016
85%
still in seat
past 90 days
24 months
replacement guarantee
on Managed Staffing
12
countries
across Latin America and the Caribbean
TECH STACK
The blockchain stack we screen for
Smart contracts
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Solidity on EVM chains
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Rust-based contract platforms
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Upgradeable contract patterns
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Audited libraries such as OpenZeppelin
Tooling and testing
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Hardhat and Foundry
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Unit, fuzz and fork tests
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Static analysis tools
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Testnet deployments
Integration
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ethers.js and viem
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Wallet connections
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Indexing chain data
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Backend services and APIs
PRICING MODEL
Managed Staffing.
Managed Staffing is open to every role we place. We find the person, handle payments and compliance, and stay involved after the hire with check-ins, visibility, and escalation when something is off. You get the person. We keep the machine running. For roles that create demand, outbound SDRs, BDRs, demand generation and full-cycle AEs, Managed Staffing runs on a six-month minimum term.
Pay
One all-in monthly rate
Per person. That is the number, and there is nothing added to it.
In the monthly rate
- Sourcing from the CloudTask staffing and recruiting company
- Screening and vetting
- Matching coordination
- Worker payments
- Compliance and employment administration
- Onboarding support at day 0, 7, 30 and 60
- Ongoing check-ins with the hire and with you
- Time and activity tracking, on by default
- Performance escalation
- 24-month replacement guarantee. Replacements not capped.
- Health benefits available on request
- Equipment benefits available on request
Stays with you
- The work itself
- Priorities and direction
- Who you hire
$299 to start your search. One time, not a subscription. It applies to your buyout or toward your first placement.
Start your searchPRICING MODEL
Direct Hire.
Direct Hire is open to every role we place. We find the person, vet them, and hand them over. You employ them, you manage them, you own the relationship from day one. Roles that create demand usually land here, because live call feedback and daily coaching work best coming straight from your sales leader, and there is no minimum term.
Pay
20% to 30%
Of first-year base salary. One time, quoted per role, paid when they accept.
In the fee
- Sourcing from the CloudTask staffing and recruiting company
- Screening and vetting
- Shortlist of matched candidates
- Interview coordination
- Offer support
- 6-month replacement guarantee. One replacement, same job description.
Yours when they accept
- Employment and payroll
- Compliance and employment administration
- Ongoing management
- Time and activity tracking
- Health benefits and equipment benefits
$299 to start your search. One time, not a subscription. It applies to your buyout or toward your first placement.
Start your searchHow CloudTask compares
Run the numbers. We did.
The same role, three ways to fill it.
Swipe to compare
| US Direct Hire | Staffing Agency | ||
|---|---|---|---|
| Time to First Interview | 48 hours | 3 to 6 weeks | 2 to 4 weeks |
| Payroll & Compliance | Included on Managed Staffing | You manage | Included in rate |
| Vetting Process | Human + AI verified | You screen | Recruiter screened |
| Candidate spam | Screened out before you see a profile | Common | Low |
| Tool Verification | Verified per candidate | Self-reported | Rarely verified |
| Free Replacements | 24 months on Managed Staffing, 6 months on Direct Hire | None | Variable |
Testimonials
Trusted by teams that hire with us
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LATAM has been a gold mine for talent. Our CloudTask hires understand our company culture and mission, and they connect with our customers in a way that drives high NPS and CX scores.
David Barrett CEO, Expensify -
At first we were an SF-based team only. Then I met Amir Reiter back in 2018. After visiting Medellín, I knew LATAM would be key to our growth and success.
Tim Zheng CEO, Apollo.io -
After meeting my CX and CS team in Medellín, we immediately loved the culture and the work ethic. As a European-HQ company, we found LATAM to be perfect to service our American clients.
Carl Carell CRO and Co-founder, GetAccept
SKILLS
Top skills to look for in a blockchain developer
Deploying a contract from a tutorial is easy. These are the skills that decide whether contract code is safe to put real value behind.
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Security first
Knows the common contract vulnerabilities, such as reentrancy and broken access control, and designs against them from the start.
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Tests beyond the happy path
Writes unit, fuzz and fork tests that try to break the contract, not only confirm it works once.
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Solid contract language skills
Writes clear Solidity or the language your chain uses, and relies on audited libraries instead of rewriting them.
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Gas awareness
Keeps transaction costs reasonable without making the code unreadable or unsafe.
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Upgrade and admin design
Decides deliberately whether a contract is upgradeable, who holds admin keys and how changes are governed.
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Off-chain integration
Connects contracts to wallets, front ends and backend services, and handles failed and pending transactions.
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Code review and audit readiness
Documents assumptions and prepares code for an external security review, then fixes what the review finds.
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Knowing when not to use a chain
Can say which parts belong on-chain and which are better in a normal database.
HIRING GUIDE
How to hire blockchain developers
Contract code usually cannot be patched after deployment the way a web app can, so mistakes are permanent and public. This guide covers what a blockchain developer does, how to scope the role, what to test, the red flags and when a dedicated blockchain hire is the wrong call.
What does a blockchain developer do?
Writes, tests and deploys smart contracts, and builds the software around them: the front end that talks to wallets, the services that read chain data and the integrations with the rest of your product.
Most of the time goes into design, testing and review rather than writing new contract code, because every deployed line is hard to change.
Scope the role: contracts, integration or both
Some teams need a contract specialist who writes and hardens the on-chain logic. Others need a developer who integrates existing contracts into an app or backend.
Put the chain, the contract language and the split of work in the brief. EVM experience does not fully transfer to chains with a different model, and the reverse is also true.
Security is the job
Contract bugs can lock or expose funds, and there is often no rollback. Good developers work from known vulnerability classes, reuse audited libraries and test adversarially.
For contracts that hold real value, plan an independent security review before launch. A strong candidate expects it and writes code that is easy to review.
What to test in a blockchain developer interview
Give a small contract with a known flaw, such as a missing access check or a reentrancy path, and ask them to review it. Watch whether they find it and how they would test for it.
Then ask them to walk through a contract they deployed: how it was tested, who can change it and what they would do differently.
Red flags in blockchain developer candidates
Security as an afterthought. If vulnerabilities only come up when you ask, they will only come up in your contracts after deployment.
No tests that try to break things. A test suite that only checks the expected path misses what attackers try first.
Writing their own versions of standard contracts. Rewriting token or access control logic that audited libraries already provide adds risk for no gain.
Vague answers about admin keys. If they cannot say who controls upgrades and how, the contract has a single point of failure.
Everything on-chain. A candidate who wants to store all data on-chain has not weighed cost, privacy or speed.
When should you not hire a dedicated blockchain developer?
When a normal database solves the problem. If nothing requires a shared, tamper-evident ledger, a blockchain adds cost and complexity without benefit.
It is also the wrong hire when nobody on your side can review code or set priorities. A single developer with no technical lead and no security review is a risk for contract code in particular.
How much does it cost to hire a blockchain developer?
It depends on seniority, the scope of the work and the country the person works from, and any single number describes one scenario and calls it a price.
What is worth understanding is the shape. On Managed Staffing it is one all-in monthly rate per person, with payments, compliance and replacement cover inside it. On Direct Hire it is a one-time fee of 20% to 30% of first-year base salary and the person goes on your payroll. We quote your number before you interview anyone.
Why hire a blockchain developer in Latin America?
Overlap. Development runs on code review, standups and incidents, and Latin America and the Caribbean share most of the US working day, so those happen in real time instead of overnight.
The second reason is communication. Your developer writes pull request descriptions, technical notes and status updates in English, and we screen English live on a call.
How does CloudTask hire for this role?
You send the chain and contract language you use, whether the work is contracts or integration and the hours you need covered. We source against that brief and come back with 3 to 5 matched profiles within 48 hours, each one screened on a live call and checked against the stack you named.
You interview and choose. On Managed Staffing we handle payments, compliance and onboarding and stay involved with check-ins. On Direct Hire the person joins your payroll from day one. Both carry a replacement guarantee: 24 months on Managed Staffing, 6 months on Direct Hire.
FAQ
The fine print, in plain terms.
Can a blockchain developer audit our smart contracts?
Do you hire for chains other than Ethereum?
Can a blockchain developer also build our front end?
What is the $299 for?
Why is there no number on the monthly rate?
Who is the legal employer?
How does tracking work, and can I turn it off?
What happens if the person does not work out?
Is there a platform or subscription fee?
Ready to hire?
3 to 5 matches in 48 hours. Start with a quick role brief to get your shortlist.