Hire Ethereum Developers

Source top Ethereum developers with Latin American talent for 70% less. With Lupa, build your expert remote team and go live in just 21 days!

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Hire Remote Ethereum Developers

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
Miguel C
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10 years of experience
Full-Time

Meet Miguel: A developer with 10 years of experience turning code into solutions.

Skills
  • Ruby
  • Data Visualization
  • Python
  • C++
  • Docker
Daniela T
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5 years of experience
Full-Time

Meet Daniela, a developer from Ecuador. 5 years in, she’s your go-to for Angular, React, and more.

Skills
  • Angular
  • HTML
  • CSS
  • React.js
  • C++
Sofía G
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5 years of experience
Part-Time

Sofía is a dynamic developer from Colombia, mastering JS, React, and Docker for 5 years.

Skills
  • JavaScript
  • HTML
  • React.js
  • TypeScript
  • Docker
Valeria R
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5 years of experience
Part-Time

Valeria is a dynamic developer from Costa Rica, mastering Swift to C++ with 5 years' finesse.

Skills
  • Swift
  • Kotlin
  • Angular
  • TypeScript
  • C++
Isabella J
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6 years of experience
Part-Time

Isabella is a skilled developer from Costa Rica, mastering C#, Azure, and Docker.

Skills
  • C#
  • Azure
  • Docker
  • Machine Learning Basics
  • HTML
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
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#
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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

Ethereum Developer Soft Skills

Essential soft skills that define effective Ethereum Developers

Communication

Convey complex technical concepts to both technical and non-technical stakeholders effectively

Problem Solving

Develop innovative solutions to complex blockchain challenges

Teamwork

Collaborate efficiently with cross-functional teams and contribute to a positive team environment

Adaptability

Quickly adjust to the rapidly changing technology and project requirements

Creative Thinking

Generate novel ideas and approaches to enhance Ethereum applications

Time Management

Efficiently prioritize tasks and meet deadlines in a dynamic work environment

Smart Contract Developer Skills

Essential technical capabilities that elevate your projects

Smart Contract Development

Proficient in writing and deploying smart contracts using Solidity on the Ethereum blockchain.

Blockchain Architecture

Understanding of Ethereum's architecture including EVM, consensus algorithms, and nodes.

Decentralized Application (DApp) Development

Skilled in building DApps using frameworks like Truffle and Hardhat, and libraries like Web3.js.

Security Practices

Implement security practices to protect smart contracts from vulnerabilities and exploits.

Token Standards

Knowledge of Ethereum token standards such as ERC-20 and ERC-721 for creating fungible and non-fungible tokens.

Cryptographic Techniques

Utilizing cryptographic principles for secure transactions and data integrity on the blockchain.

How to Write An Effective Job Post for Hiring Ethereum 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

  • Solidity Developer
  • Blockchain Engineer
  • Smart Contract Developer
  • Web3 Developer
  • Distributed Systems Engineer
  • Cryptocurrency Developer

Role Overview

  • Tech Stack: Proficient in Solidity, Ethereum, IPFS, Truffle
  • Project Scope: Develop scalable smart contracts; optimize DApps for efficiency and security
  • Team Size: Collaborate within a cross-functional team of 8 developers

Role Requirements

  • Years of Experience: Minimum of 3 years in blockchain development
  • Core Skills: Smart contract development, blockchain fundamentals, and security best practices
  • Must-Have Technologies: Expertise in Solidity and web3.js

Role Benefits

  • Salary Range: Competitive, $90,000 - $150,000 based on experience and skills
  • Remote Options: Flexible work arrangements for global collaboration
  • Growth Opportunities: Access to cutting-edge projects, industry events, and networking

Do

  • Specify compensation and perks offered
  • Detail essential skills and experience
  • Showcase company values and atmosphere
  • Emphasize potential for career advancement
  • Utilize clear and compelling wording

Don't

  • Don't use technical jargon without explanation.
  • Don't overlook project examples in the description.
  • Don't have unrealistic expectations.
  • Don't ignore cultural fit.
  • Don't skip on advancement opportunities.

Top Ethereum Developer Interview Questions

Essential questions for evaluating Ethereum Developer

Can you explain the difference between Ethereum and Bitcoin in terms of their functionalities?

Look for a candidate who understands that while Bitcoin is primarily a digital currency, Ethereum is a platform designed for decentralized applications and smart contracts. They should mention Ethereum's Turing-complete programming language, which enables complex contract logic.

What is the Ethereum Virtual Machine (EVM), and why is it important?

The candidate should highlight that the EVM is a decentralized runtime environment for executing smart contracts. It’s important because it ensures that the code has the same outcome on every node in the network, maintaining consensus.

How do gas fees work in Ethereum, and why are they crucial?

Look for an explanation that gas fees are incentives for miners and a way to allocate network resources. They help prevent abuse, ensure transaction prioritization, and are paid in ETH, with costs determined by transaction complexity and network demand.

Can you describe the security considerations you must take when writing smart contracts?

Expect the candidate to discuss common vulnerabilities like reentrancy, integer overflow, and the importance of audits. They should emphasize best practices, such as using established libraries and continuously refining security measures.

What tools and frameworks do you prefer for Ethereum development, and why?

The candidate should mention tools like Truffle, Hardhat, and Remix, discussing why they use them—such as for easier development, testing, and deployment. Look for familiarity with Solidity and libraries like OpenZeppelin for secure contract implementation.

Can you describe a challenging problem you encountered while developing a smart contract and how you resolved it?

Look for candidates who demonstrate a logical approach to problem-solving, illustrating their ability to troubleshoot and debug complex issues. They should mention specific tools or methodologies they used to diagnose the problem, as well as how they implemented a solution.

How do you ensure the security and robustness of your smart contracts?

Candidates should discuss strategies for preventing vulnerabilities, such as thorough code reviews, unit testing, and using known security libraries. They should mention experience with audits and tools like MythX or Slither, and an understanding of common vulnerabilities like reentrancy.

Describe a situation where you had to optimize a smart contract for gas efficiency. What approach did you take?

Look for a candidate who can explain their understanding of gas costs and how they analyze and modify contracts. They might mention techniques like reducing storage operations or refactoring logic to be more efficient, reflecting their ability to balance functionality with cost efficiency.

What is your approach to finding and fixing bugs in a large Ethereum codebase?

Evaluate their structured problem-solving approach. A strong candidate will discuss breaking down complex systems into manageable components, prioritizing based on impact, and using tools like Truffle or Hardhat. They should show familiarity with testnets for simulations.

How do you approach learning new updates or changes to the Ethereum network?

Successful candidates will show proactive learning strategies, such as following thought leaders, engaging with developer communities, or contributing to open-source projects. This illustrates their ability to keep up-to-date with the rapidly evolving Ethereum ecosystem.

Can you tell us about a time when you had to explain a complex technical concept to a non-technical team member or stakeholder?

Look for the candidate's ability to simplify complex ideas, use relatable analogies, and their patience and willingness to ensure the other person understood the information.

Describe a situation where you worked in a team to solve a problem. How did you ensure everyone was contributing effectively?

Consider their collaboration skills, ability to listen and incorporate team input, and methods for fostering team responsibility and engagement.

How do you handle a situation where two team members disagree on implementing a solution? How do you facilitate a resolution?

Evaluate their conflict resolution skills, diplomatic approach, and ability to mediate solutions that consider all perspectives while focusing on the project goals.

Give an example of a stressful project. How did you manage your stress and support your team?

Assess their stress management strategies, such as prioritization skills, maintaining open communication, and how they keep morale up during challenging times.

What steps do you take when you're leading a project to ensure clear communication with your team?

Check their methods for setting expectations, establishing communication channels, and ensuring that team members understand their roles and updates are regularly shared.

  • 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 Ethereum Developer Interview Questions

Essential questions for evaluating Ethereum Developer

Can you explain the difference between Ethereum and Bitcoin in terms of their functionalities?

Look for a candidate who understands that while Bitcoin is primarily a digital currency, Ethereum is a platform designed for decentralized applications and smart contracts. They should mention Ethereum's Turing-complete programming language, which enables complex contract logic.

What is the Ethereum Virtual Machine (EVM), and why is it important?

The candidate should highlight that the EVM is a decentralized runtime environment for executing smart contracts. It’s important because it ensures that the code has the same outcome on every node in the network, maintaining consensus.

How do gas fees work in Ethereum, and why are they crucial?

Look for an explanation that gas fees are incentives for miners and a way to allocate network resources. They help prevent abuse, ensure transaction prioritization, and are paid in ETH, with costs determined by transaction complexity and network demand.

Can you describe the security considerations you must take when writing smart contracts?

Expect the candidate to discuss common vulnerabilities like reentrancy, integer overflow, and the importance of audits. They should emphasize best practices, such as using established libraries and continuously refining security measures.

What tools and frameworks do you prefer for Ethereum development, and why?

The candidate should mention tools like Truffle, Hardhat, and Remix, discussing why they use them—such as for easier development, testing, and deployment. Look for familiarity with Solidity and libraries like OpenZeppelin for secure contract implementation.

Can you describe a challenging problem you encountered while developing a smart contract and how you resolved it?

Look for candidates who demonstrate a logical approach to problem-solving, illustrating their ability to troubleshoot and debug complex issues. They should mention specific tools or methodologies they used to diagnose the problem, as well as how they implemented a solution.

How do you ensure the security and robustness of your smart contracts?

Candidates should discuss strategies for preventing vulnerabilities, such as thorough code reviews, unit testing, and using known security libraries. They should mention experience with audits and tools like MythX or Slither, and an understanding of common vulnerabilities like reentrancy.

Describe a situation where you had to optimize a smart contract for gas efficiency. What approach did you take?

Look for a candidate who can explain their understanding of gas costs and how they analyze and modify contracts. They might mention techniques like reducing storage operations or refactoring logic to be more efficient, reflecting their ability to balance functionality with cost efficiency.

What is your approach to finding and fixing bugs in a large Ethereum codebase?

Evaluate their structured problem-solving approach. A strong candidate will discuss breaking down complex systems into manageable components, prioritizing based on impact, and using tools like Truffle or Hardhat. They should show familiarity with testnets for simulations.

How do you approach learning new updates or changes to the Ethereum network?

Successful candidates will show proactive learning strategies, such as following thought leaders, engaging with developer communities, or contributing to open-source projects. This illustrates their ability to keep up-to-date with the rapidly evolving Ethereum ecosystem.

Can you tell us about a time when you had to explain a complex technical concept to a non-technical team member or stakeholder?

Look for the candidate's ability to simplify complex ideas, use relatable analogies, and their patience and willingness to ensure the other person understood the information.

Describe a situation where you worked in a team to solve a problem. How did you ensure everyone was contributing effectively?

Consider their collaboration skills, ability to listen and incorporate team input, and methods for fostering team responsibility and engagement.

How do you handle a situation where two team members disagree on implementing a solution? How do you facilitate a resolution?

Evaluate their conflict resolution skills, diplomatic approach, and ability to mediate solutions that consider all perspectives while focusing on the project goals.

Give an example of a stressful project. How did you manage your stress and support your team?

Assess their stress management strategies, such as prioritization skills, maintaining open communication, and how they keep morale up during challenging times.

What steps do you take when you're leading a project to ensure clear communication with your team?

Check their methods for setting expectations, establishing communication channels, and ensuring that team members understand their roles and updates are regularly shared.

  • 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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