Hire Web3 Developers

Hire skilled Web3 Developers with Lupa. Latin American talent at 70% less, pre-vetted, and ready in 21 days. Seamless compliance and unmatched local expertise.

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Hire Remote Web3 Developers

João S
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5 years of experience
Full-Time

João is a skilled developer from Brazil, mastering Python, APIs, and SQL with flair.

Skills
  • Python
  • Machine Learning Basics
  • CSS
  • APIs
  • SQL
Valentina R
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6 years of experience
Full-Time

Valentina transforms code into seamless solutions. Your go-to for all things dev.

Skills
  • PHP
  • CSS
  • JavaScript
  • Node.js
  • C#
Mariana O
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8 years of experience
Full-Time

Mariana's your go-to dev with 8 years in Java, Docker, Python, Kubernetes, and CSS.

Skills
  • Java
  • Docker
  • Python
  • Kubernetes
  • CSS
Diego L
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12 years of experience
Full-Time

Diego is a seasoned developer from Mexico, mastering Go, Node.js, React, and AWS.

Skills
  • Go (Golang)
  • Node.js
  • HTML
  • React.js
  • AWS
Camila F
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6 years of experience
Part-Time

Camila is a developer from Argentina, crafting digital solutions with 6 years of expertise.

Skills
  • PHP
  • CSS
  • SQL
  • APIs
  • JavaScript
Sebastián R
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11 years of experience
Part-Time

Meet Sebastián, a developer with 11 years of expertise in Kotlin, Swift, AI, and more.

Skills
  • Kotlin
  • Swift
  • AI
  • Machine Learning Basics
  • Data Visualization
Benjamín S
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12 years of experience
Part-Time

Meet Benjamín, your go-to developer with 12 years of Vue.js, AWS, and SQL expertise.

Skills
  • Vue.js
  • TypeScript
  • Node.js
  • AWS
  • SQL
Ana M
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7 years of experience
Full-Time

Ana is a dynamic developer from Panama, blending AI and Python with 7 years of expertise.

Skills
  • C++
  • Machine Learning Basics
  • Data Visualization
  • AI
  • Python
Hire LatAm Talent
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Testimonials

"Over the course of 2024, we successfully hired 9 exceptional team members through Lupa, spanning mid-level to senior roles. The quality of talent has been outstanding, and we’ve been able to achieve payroll cost savings while bringing great professionals onto our team. We're very happy with the consultation and attention they've provided us."

RaeAnn Daly
Vice President of Customer Success, Blazeo

“We needed to scale a new team quickly - with top talent. Lupa helped us build a great process, delivered great candidates quickly, and had impeccable service”

Phillip Gutheim
Head of Product, Rappi Bank

“With Lupa, we rebuilt our entire tech team in less than a month. We’re spending half as much on talent. Ten out of ten”

Dan Berzansky
CEO, Oneteam 360

Lupa's Proven Process

Your path to hiring success in 4 simple steps:
Day 1
Define The Role

Together, we'll create a precise hiring plan, defining your ideal candidate profile, team needs, compensation and cultural fit.

Day 2
Targeted Search

Our tech-enabled search scans thousands of candidates across LatAm, both active and passive. We leverage advanced tools and regional expertise to build a comprehensive talent pool.

Day 3 & 4
evaluation

We carefully assess 30+ candidates with proven track records. Our rigorous evaluation ensures each professional brings relevant experience from industry-leading companies, aligned to your needs.

Day 5
Shortlist Delivery

Receive a curated selection of 3-4 top candidates with comprehensive profiles. Each includes proven background, key achievements, and expectations—enabling informed hiring decisions.

Book a Free Consultation

Reviews

"Over the course of 2024, we successfully hired 9 exceptional team members through Lupa, spanning mid-level to senior roles. The quality of talent has been outstanding, and we’ve been able to achieve payroll cost savings while bringing great professionals onto our team. We're very happy with the consultation and attention they've provided us."

RaeAnn Daly
Vice President of Customer Success, Blazeo

“We needed to scale a new team quickly - with top talent. Lupa helped us build a great process, delivered great candidates quickly, and had impeccable service”

Phillip Gutheim
Head of Product, Rappi Bank

“With Lupa, we rebuilt our entire tech team in less than a month. We’re spending half as much on talent. Ten out of ten”

Dan Berzansky
CEO, Oneteam 360

“We scaled our first tech team at record speed with Lupa. We couldn’t be happier with the service and the candidates we were sent.”

Mateo Albarracin
CEO, Bacu

"Recruiting used to be a challenge, but Lupa transformed everything. Their professional, agile team delivers top-quality candidates, understands our needs, and provides exceptional personalized service. Highly recommended!"

Rogerio Arguello
Accounting and Finance Director, Pasos al Éxito

“Lupa has become more than just a provider; it’s a true ally for Pirani in recruitment processes. The team is always available to support and deliver the best service. Additionally, I believe they offer highly competitive rates and service within the market.”

Tania Oquendo Henao
Head of People, Pirani

"Highly professional, patient with our changes, and always maintaining clear communication with candidates. We look forward to continuing to work with you on all our future roles."

Alberto Andrade Chiquete
VP of Revenue, Komet Sales

“Lupa has been an exceptional partner this year, deeply committed to understanding our unique needs and staying flexible to support us. We're excited to continue our collaboration into 2025.”

John Vanko
CTO, GymOwners

"What I love about Lupa is their approach to sharing small, carefully selected batches of candidates. They focus on sending only the three most qualified individuals, which has already helped us successfully fill 7 roles.”

Daniel Ruiz
Head of Engineering, Fuse Finance

"We hired 2 of our key initial developers with Lupa. The consultation was very helpful, the candidates were great and the process has been super fluid. We're already planning to do our next batch of hiring with Lupa. 5 stars."

Joaquin Oliva
Co-Founder, EBI

"Working with Lupa for LatAm hiring has been fantastic. They found us a highly skilled candidate at a better rate than our previous staffing company. The fit is perfect, and we’re excited to collaborate on more roles."

Kim Heger
Chief Talent Officer, Hakkoda

"We compared Lupa with another LatAm headhunter we found through Google, and Lupa delivered a far superior experience. Their consultative approach stood out, and the quality of their candidates was superior. I've hired through Lupa for both of my companies and look forward to building more of my LatAm team with their support."

Josh Berzansky
CEO, Proven Promotions & Vorgee USA

“We’ve worked with Lupa on multiple roles, and they’ve delivered time and again. From sourcing an incredible Senior FullStack Developer to supporting our broader hiring needs, their team has been proactive, kind, and incredibly easy to work with. It really feels like we’ve gained a trusted partner in hiring.”

Jeannine LeBeau
Director of People and Operations, Intevity

Working with Lupa was a great experience. We struggled to find software engineers with a specific skill set in the US, but Lupa helped us refine the role and articulate our needs. Their strategic approach made all the difference in finding the right person. Highly recommend!

Mike Bohlander
CTO and Co-Founder, Outgo

Lupa goes beyond typical headhunters. They helped me craft the role, refine the interview process, and even navigate international payroll. I felt truly supported—and I’m thrilled with the person I hired. What stood out most was their responsiveness and the thoughtful, consultative approach they brought.

Matt Clifford
Founder, Matt B. Clifford Consulting

Web3 Developer Soft Skills

Essential soft skills that define effective Web3 Developers

Collaboration

Work effectively with cross-functional teams, including designers, product managers, and other developers.

Adaptability

Quickly adjust to changing project needs, technologies, and environments in the fast-evolving Web3 space.

Creativity

Think outside the box to develop new, user-friendly blockchain applications and interactions.

Time Management

Efficiently plan and execute tasks to meet project deadlines in a timely manner.

Attention to Detail

Ensure accuracy and precision in code and project deliverables to maintain high-quality standards.

Empathy

Understand user needs and perspectives to create accessible and meaningful user experiences.

Web3 Developer Skills

Essential technical capabilities that elevate your projects

Blockchain Development

Expertise in creating and deploying smart contracts on platforms like Ethereum.

Decentralized Applications (DApps)

Proficient in building user interfaces and backend services for DApps.

Cryptography

Understanding of cryptographic principles to secure decentralized systems.

Consensus Algorithms

Experience with PoW, PoS, and other algorithms driving blockchain networks.

Web3.js and Ethers.js

Utilize libraries to interact with the Ethereum blockchain.

Token Standards

Familiarity with ERC-20, ERC-721, and other token standards for blockchain tokens.

How to Write an Effective Job Post for Hiring Web3 Developers

This is an example job post, including a sample salary expectation. Customize it to better suit your needs, budget, and attract top candidates.

Recommended Titles

  • Smart Contract Developer
  • Blockchain Engineer
  • Full Stack Developer
  • Solidity Developer
  • Decentralized App Developer
  • Frontend Developer

Role Overview

  • Tech Stack: Proficient in Solidity, JavaScript, Web3.js, Ethers.js
  • Project Scope: Develop decentralized applications (dApps), smart contracts; engage in blockchain network integration
  • Team Size: Collaborate within a focused team of blockchain experts

Role Requirements

  • Years of Experience: At least 3 years in blockchain development
  • Core Skills: Expertise in Ethereum, IPFS, and DeFi protocols
  • Must-Have Technologies: Deep knowledge of Solidity, Truffle, and Hardhat

Role Benefits

  • Salary Range: Competitive salary based on experience and skills, $90,000 - $140,000
  • Remote Options: Hybrid work model supporting both remote and in-office work
  • Growth Opportunities: Regular access to blockchain workshops, certification reimbursements

Do

  • State salary expectations and perks
  • Specify essential skills and credentials
  • Share company culture and principles
  • Emphasize advancement prospects
  • Employ clear and engaging wording

Don't

  • Don't use unclear terms.
  • Don't overlook necessary skills.
  • Don't make it overly detailed.
  • Don't exclude company information.
  • Don't skip the salary range.

Top Web3 Developer Interview Questions

Essential questions for evaluating Web3 Developer

Can you explain the difference between ERC-20 and ERC-721 tokens?

The candidate should demonstrate a clear understanding of both token standards. ERC-20 is used for fungible tokens, meaning each token is identical. ERC-721 is used for non-fungible tokens (NFTs), where each token is unique. Look for an explanation that shows they know how each standard is implemented and why the differences matter in various use cases.

What tools or frameworks do you use for blockchain development?

The candidate should mention tools such as Truffle, Hardhat, or Remix for smart contract development and testing; Web3.js or Ethers.js for interacting with Ethereum; and potentially other tools like Metamask or Infura for connecting to the network. This indicates they are familiar with the typical development environment in Web3.

How do you ensure the security of the smart contracts you write?

Look for the candidate to mention practices like auditing contracts, writing test cases, understanding common vulnerabilities like reentrancy attacks, and using static analysis tools such as MythX or Slither. Security proficiency is crucial in blockchain development to prevent significant financial losses.

Can you describe how you would deploy a smart contract on the Ethereum network?

The candidate should describe a process involving compiling the smart contract, using a deployment script or tool, and finally broadcasting the transaction on the Ethereum network using a provider or wallet. Pay attention to their understanding of gas fees and choosing test or mainnet environments for deployment.

How do you handle state changes in a decentralized application (dApp)?

Expect the candidate to discuss handling state changes via smart contracts and managing state updates with tools like Web3.js or state management libraries in the frontend. Look for understanding in maintaining efficient state updates and minimizing unnecessary network calls.

Describe a situation where you had to troubleshoot a smart contract bug. How did you approach the problem?

Look for a step-by-step explanation. The candidate should discuss how they identified the bug, analyzed the contract, and applied debugging tools or techniques. They should demonstrate an understanding of common pitfalls in smart contract development and show resourcefulness in finding solutions.

How do you handle scalability challenges in a decentralized application?

The candidate should mention strategies like off-chain computation, layer-2 solutions, or efficient data storage. They should show an ability to evaluate and implement various scaling methods while understanding their trade-offs.

Have you ever faced a security vulnerability in your Web3 project? What steps did you take to mitigate it?

Look for a methodical approach. The candidate should have recognized the vulnerability, assessed its impact, and either applied a fix or adjusted their security practices. They should emphasize proactive measures like audits and testing.

Can you give an example of a complex problem you solved using blockchain technology? What was your thought process?

The candidate should describe a specific problem and how blockchain provided a unique solution. Focus on their analytical thinking, how they identified the problem, and their innovative use of blockchain to address it.

How do you prioritize tasks when faced with multiple pressing issues in a project?

Look for a structured approach. The candidate should discuss their method for assessing urgency and impact, possibly mentioning tools or frameworks they use to manage and prioritize tasks effectively.

Can you give an example of a time when you had to communicate a complex technical concept to a non-technical team member?

Look for ability to simplify complex concepts, showing patience and adaptability to different audiences.

Describe a situation where you had to work closely with someone whose personality was very different from yours.

Assess ability to navigate differences, demonstrating respect and finding common ground to achieve team goals.

How do you prioritize tasks when handling multiple projects with tight deadlines?

Look for organizational skills, ability to manage time effectively, and communicate priorities under pressure.

Tell us about a time you took the lead on a project. How did you ensure the team remained engaged and productive?

Evaluate leadership qualities, ability to motivate and delegate tasks effectively, maintaining team dynamics.

Working in Web3 can be fast-paced. How do you handle stress in such an environment?

Look for stress management strategies, ability to remain calm, and effectiveness under pressure.

  • Poor Communication Skills
  • Inability to Receive Feedback
  • Lack of Problem-Solving Ability
  • Consistently Missing Deadlines
  • Unwillingness to Learn

Why We Stand Out From Other Recruiting Firms

From search to hire, our process is designed to secure the perfect talent for your team

Local Expertise

Tap into our knowledge of the LatAm market to secure the best talent at competitive, local rates. We know where to look, who to hire, and how to meet your needs precisely.

Direct Control

Retain complete control over your hiring process. With our strategic insights, you’ll know exactly where to find top talent, who to hire, and what to offer for a perfect match.

Seamless Compliance

We manage contracts, tax laws, and labor regulations, offering a worry-free recruitment experience tailored to your business needs, free of hidden costs and surprises.

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Joseph Burns
Founder

Top Web3 Developer Interview Questions

Essential questions for evaluating Web3 Developer

Can you explain the difference between ERC-20 and ERC-721 tokens?

The candidate should demonstrate a clear understanding of both token standards. ERC-20 is used for fungible tokens, meaning each token is identical. ERC-721 is used for non-fungible tokens (NFTs), where each token is unique. Look for an explanation that shows they know how each standard is implemented and why the differences matter in various use cases.

What tools or frameworks do you use for blockchain development?

The candidate should mention tools such as Truffle, Hardhat, or Remix for smart contract development and testing; Web3.js or Ethers.js for interacting with Ethereum; and potentially other tools like Metamask or Infura for connecting to the network. This indicates they are familiar with the typical development environment in Web3.

How do you ensure the security of the smart contracts you write?

Look for the candidate to mention practices like auditing contracts, writing test cases, understanding common vulnerabilities like reentrancy attacks, and using static analysis tools such as MythX or Slither. Security proficiency is crucial in blockchain development to prevent significant financial losses.

Can you describe how you would deploy a smart contract on the Ethereum network?

The candidate should describe a process involving compiling the smart contract, using a deployment script or tool, and finally broadcasting the transaction on the Ethereum network using a provider or wallet. Pay attention to their understanding of gas fees and choosing test or mainnet environments for deployment.

How do you handle state changes in a decentralized application (dApp)?

Expect the candidate to discuss handling state changes via smart contracts and managing state updates with tools like Web3.js or state management libraries in the frontend. Look for understanding in maintaining efficient state updates and minimizing unnecessary network calls.

Describe a situation where you had to troubleshoot a smart contract bug. How did you approach the problem?

Look for a step-by-step explanation. The candidate should discuss how they identified the bug, analyzed the contract, and applied debugging tools or techniques. They should demonstrate an understanding of common pitfalls in smart contract development and show resourcefulness in finding solutions.

How do you handle scalability challenges in a decentralized application?

The candidate should mention strategies like off-chain computation, layer-2 solutions, or efficient data storage. They should show an ability to evaluate and implement various scaling methods while understanding their trade-offs.

Have you ever faced a security vulnerability in your Web3 project? What steps did you take to mitigate it?

Look for a methodical approach. The candidate should have recognized the vulnerability, assessed its impact, and either applied a fix or adjusted their security practices. They should emphasize proactive measures like audits and testing.

Can you give an example of a complex problem you solved using blockchain technology? What was your thought process?

The candidate should describe a specific problem and how blockchain provided a unique solution. Focus on their analytical thinking, how they identified the problem, and their innovative use of blockchain to address it.

How do you prioritize tasks when faced with multiple pressing issues in a project?

Look for a structured approach. The candidate should discuss their method for assessing urgency and impact, possibly mentioning tools or frameworks they use to manage and prioritize tasks effectively.

Can you give an example of a time when you had to communicate a complex technical concept to a non-technical team member?

Look for ability to simplify complex concepts, showing patience and adaptability to different audiences.

Describe a situation where you had to work closely with someone whose personality was very different from yours.

Assess ability to navigate differences, demonstrating respect and finding common ground to achieve team goals.

How do you prioritize tasks when handling multiple projects with tight deadlines?

Look for organizational skills, ability to manage time effectively, and communicate priorities under pressure.

Tell us about a time you took the lead on a project. How did you ensure the team remained engaged and productive?

Evaluate leadership qualities, ability to motivate and delegate tasks effectively, maintaining team dynamics.

Working in Web3 can be fast-paced. How do you handle stress in such an environment?

Look for stress management strategies, ability to remain calm, and effectiveness under pressure.

  • Poor Communication Skills
  • Inability to Receive Feedback
  • Lack of Problem-Solving Ability
  • Consistently Missing Deadlines
  • Unwillingness to Learn

Frequently Asked Questions

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