Hire Blockchain Developers
Source top Blockchain Developers! Leverage LatAm talent at 70% less. Pre-vetted candidates, full setup in 21 days. Maximize success with our local expertise!














Hire Remote Blockchain Developers


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


Meet Sebastián, a developer with 11 years of expertise in Kotlin, Swift, AI, and more.
- Kotlin
- Swift
- AI
- Machine Learning Basics
- Data Visualization


Nicolás is a charismatic developer crafting digital experiences with 5 years of expertise.
- React.js
- JavaScript
- HTML
- CSS
- C#


Valentina transforms code into seamless solutions. Your go-to for all things dev.
- PHP
- CSS
- JavaScript
- Node.js
- C#


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


Isabella is a skilled developer from Costa Rica, mastering C#, Azure, and Docker.
- C#
- Azure
- Docker
- Machine Learning Basics
- HTML


Camila is a developer from Argentina, crafting digital solutions with 6 years of expertise.
- PHP
- CSS
- SQL
- APIs
- JavaScript

"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."


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“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”

Lupa's Proven Process
Together, we'll create a precise hiring plan, defining your ideal candidate profile, team needs, compensation and cultural fit.
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.
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.
Receive a curated selection of 3-4 top candidates with comprehensive profiles. Each includes proven background, key achievements, and expectations—enabling informed hiring decisions.
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."


“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”


“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”


“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.”

"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!"


“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.”

"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."


“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.”


"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.”


"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."

"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."


"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."


“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.”

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!

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.

Blockchain Developer Soft Skills
Communication
Convey complex blockchain concepts clearly to technical and non-technical stakeholders
Problem Solving
Develop innovative solutions to intricate blockchain challenges
Team Collaboration
Work effectively within multidisciplinary teams to achieve project goals
Adaptability
Quickly adjust to new technologies and changes in blockchain environments
Time Management
Balance multiple blockchain development projects and deadlines efficiently
Empathy
Understand and prioritize user needs when designing blockchain solutions
Blockchain Developer Skills
Blockchain Architecture
Understanding different blockchain technologies, such as Ethereum and Hyperledger, and their applications.
Smart Contracts Development
Proficient in writing and deploying smart contracts using languages like Solidity and Chaincode.
Cryptography
Implementing cryptographic techniques to secure blockchain transactions and data integrity.
Decentralized Applications (DApps)
Designing and building decentralized applications that interact with blockchain networks.
Consensus Algorithms
Knowledge of various consensus mechanisms like Proof of Work and Proof of Stake.
Web3 and Blockchain APIs
Utilizing Web3.js or other libraries to connect and interact with blockchain networks.
How to Write an Effective Job Post for Hiring Blockchain Developers
Recommended Titles
- Smart Contract Developer
- Cryptography Engineer
- Blockchain Architect
- Distributed Systems Engineer
- Security Engineer
- Decentralized App (dApp) Developer
Role Overview
- Tech Stack: Proficient in Solidity, Ethereum, Smart Contracts
- Project Scope: Design, develop, and deploy blockchain solutions; optimize for security and performance
- Team size: Collaborate within a multidisciplinary team of 4 blockchain engineers
Role Requirements
- Years of Experience: Minimum of 3 years in blockchain development
- Core Skills: Proficiency in cryptographic algorithms, distributed computing, and smart contract deployment
- Must-Have Technologies: Expertise in Solidity, Node.js, and Truffle Suite
Role Benefits
- Salary Range: Competitive salary based on experience and skills, $90,000 - $130,000
- Remote Options: Flexible remote work arrangements available
- Growth Opportunities: Access to blockchain conferences, training sessions, and leadership training
Do
- Specify compensation and perks
- Detail essential expertise and credentials
- Convey organization ethos and principles
- Emphasize career advancement potential
- Adopt clear and captivating wording
Don't
- Avoid vague descriptions.
- Exclude crucial skills and qualifications.
- Refrain from making it overly lengthy.
- Don't skip important company information.
- Neglecting to mention salary range or benefits.
Top Blockchain Developer Interview Questions
Essential questions for evaluating Blockchain Developers
Can you explain how consensus mechanisms work in blockchain technology?
Look for an explanation of consensus mechanisms like Proof of Work, Proof of Stake, or others. The candidate should be able to articulate how these mechanisms secure the network and validate transactions.
How do you ensure the security of smart contracts?
The candidate should discuss techniques to write safe smart contracts, such as using automated testing tools, code audits, and adhering to security best practices. Look for an understanding of common vulnerabilities.
What experience do you have with blockchain platforms like Ethereum or Hyperledger?
Listen for specific projects or use cases where the candidate has implemented solutions on these platforms. Experience with deploying smart contracts or custom blockchain networks indicates practical expertise.
Can you describe how you would handle scalability issues in blockchain applications?
Good candidates should mention strategies like off-chain solutions, sharding, or layer 2 protocols. They should understand trade-offs between scalability, security, and decentralization.
How do you approach testing and debugging in blockchain development?
The response should highlight tools and practices such as using test networks, unit testing frameworks, and debuggers tailored for blockchain development. Emphasize attention to detail and iterative testing.
Can you describe a challenging problem you encountered while developing a blockchain application and how you resolved it?
Listen for the candidate’s ability to articulate the problem clearly and how methodically they approached the resolution. Look for specific examples and the tools or methods they used to solve the issue.
How do you approach debugging when an issue arises within a smart contract?
Observe their problem-solving process, including specific debugging tools they prefer, their understanding of common pitfalls, and their overall strategy for ensuring contract reliability.
Describe a time when you needed to optimize a blockchain application for performance. What was your approach, and what was the outcome?
Seek insight into their analytical skills, decision-making process, and familiarity with optimization techniques in blockchain development.
How do you handle conflicting requirements or constraints when developing a solution on the blockchain?
Evaluate their problem-solving skills in prioritizing and balancing competing needs, and their ability to communicate and negotiate effectively with stakeholders.
When faced with a new technical challenge in blockchain, how do you go about solving it?
Look for creativity in their problem-solving approach, their ability to research and learn independently, and their motivation to find innovative solutions.
Can you provide an example of a time you had to collaborate with a team to complete a complex blockchain project?
Listen for examples where the candidate worked effectively with others, highlighting their ability to communicate across different technical areas and contribute to the team's goals productively.
How do you handle disagreements within a team, especially when working on a blockchain solution?
Look for responses that show the candidate's ability to navigate conflicts constructively, suggesting they value team dynamics and focus on achieving a gainful resolution.
Describe a situation where you demonstrated leadership during a challenging phase of a blockchain project.
Observe how they took initiative and guided their team, showcasing their ability to motivate, direct, and achieve consensus among peers in high-pressure scenarios.
How would you explain a complex blockchain concept to someone without a technical background?
Evaluate their ability to simplify and convey intricate ideas clearly, indicating strong communication skills and empathy for understanding others' perspectives.
How do you manage stress when deadlines are tight, and issues arise in blockchain development?
Pay attention to their stress management techniques, whether they remain calm under pressure, prioritize effectively, and seek solutions proactively, preserving the project's momentum.
- Poor Communication Skills
- Inability to Receive Feedback
- Lack of Problem-Solving Ability
- Consistently Missing Deadlines
- Unwillingness to Learn

Build elite teams in record time, full setup in 21 days or less.
Book a Free ConsultationWhy 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.

Lupa will help you hire top talent in Latin America.
Book a Free ConsultationTop Blockchain Developer Interview Questions
Essential questions for evaluating Blockchain Developers
Can you explain how consensus mechanisms work in blockchain technology?
Look for an explanation of consensus mechanisms like Proof of Work, Proof of Stake, or others. The candidate should be able to articulate how these mechanisms secure the network and validate transactions.
How do you ensure the security of smart contracts?
The candidate should discuss techniques to write safe smart contracts, such as using automated testing tools, code audits, and adhering to security best practices. Look for an understanding of common vulnerabilities.
What experience do you have with blockchain platforms like Ethereum or Hyperledger?
Listen for specific projects or use cases where the candidate has implemented solutions on these platforms. Experience with deploying smart contracts or custom blockchain networks indicates practical expertise.
Can you describe how you would handle scalability issues in blockchain applications?
Good candidates should mention strategies like off-chain solutions, sharding, or layer 2 protocols. They should understand trade-offs between scalability, security, and decentralization.
How do you approach testing and debugging in blockchain development?
The response should highlight tools and practices such as using test networks, unit testing frameworks, and debuggers tailored for blockchain development. Emphasize attention to detail and iterative testing.
Can you describe a challenging problem you encountered while developing a blockchain application and how you resolved it?
Listen for the candidate’s ability to articulate the problem clearly and how methodically they approached the resolution. Look for specific examples and the tools or methods they used to solve the issue.
How do you approach debugging when an issue arises within a smart contract?
Observe their problem-solving process, including specific debugging tools they prefer, their understanding of common pitfalls, and their overall strategy for ensuring contract reliability.
Describe a time when you needed to optimize a blockchain application for performance. What was your approach, and what was the outcome?
Seek insight into their analytical skills, decision-making process, and familiarity with optimization techniques in blockchain development.
How do you handle conflicting requirements or constraints when developing a solution on the blockchain?
Evaluate their problem-solving skills in prioritizing and balancing competing needs, and their ability to communicate and negotiate effectively with stakeholders.
When faced with a new technical challenge in blockchain, how do you go about solving it?
Look for creativity in their problem-solving approach, their ability to research and learn independently, and their motivation to find innovative solutions.
Can you provide an example of a time you had to collaborate with a team to complete a complex blockchain project?
Listen for examples where the candidate worked effectively with others, highlighting their ability to communicate across different technical areas and contribute to the team's goals productively.
How do you handle disagreements within a team, especially when working on a blockchain solution?
Look for responses that show the candidate's ability to navigate conflicts constructively, suggesting they value team dynamics and focus on achieving a gainful resolution.
Describe a situation where you demonstrated leadership during a challenging phase of a blockchain project.
Observe how they took initiative and guided their team, showcasing their ability to motivate, direct, and achieve consensus among peers in high-pressure scenarios.
How would you explain a complex blockchain concept to someone without a technical background?
Evaluate their ability to simplify and convey intricate ideas clearly, indicating strong communication skills and empathy for understanding others' perspectives.
How do you manage stress when deadlines are tight, and issues arise in blockchain development?
Pay attention to their stress management techniques, whether they remain calm under pressure, prioritize effectively, and seek solutions proactively, preserving the project's momentum.
- Poor Communication Skills
- Inability to Receive Feedback
- Lack of Problem-Solving Ability
- Consistently Missing Deadlines
- Unwillingness to Learn