Javascript Jobs in Web3

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Job Position Company Posted Location Salary Tags

Blockstream

Switzerland

$72k - $106k

Blockchain Unmasked

United States

$36k - $70k

Tether

Budapest, Hungary

$36k - $54k

Tether

Amsterdam, Netherlands

$115k - $120k

Tether

Madrid, Spain

$115k - $120k

Tether

Sao Paulo, Brazil

$115k - $120k

Tether

Denmark

$115k - $120k

Tether

Bangalore, India

$115k - $120k

Tether

Amsterdam, Netherlands

$115k - $120k

Tether

Abu Dhabi, United Arab Emirates

$115k - $120k

Tether

Islamabad, Pakistan

$115k - $120k

Tether

Buenos Aires, Argentina

$115k - $120k

Tether

Dubai, United Arab Emirates

$115k - $120k

Tether

Warsaw, Poland

$115k - $120k

Tether

Barcelona, Spain

$115k - $120k

Blockstream
$72k - $106k estimated
Lugano Lugano Switzerland
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Blockstream was founded in 2014 by Dr. Adam Back and a group of fellow cryptographers and engineers passionate about Bitcoin and its potential to change the future of finance. We have become a market leader in Bitcoin security and Layer-2 technologies. Our products are designed to make financial systems more efficient, secure, and robust.

We are seeking Software Engineer, an entry-level to more senior technical role focused on learning and contributing to the development of blockchain and digital asset solutions for enterprise and institutional clients. This role provides hands-on experience with distributed systems, cryptography, and financial technology while working alongside experienced developers and architects.

Within the Service & Enterprise Solutions organization, the Software Engineers contribute to building secure, scalable platforms for banking clients. This role offers the opportunity to work with cutting-edge blockchain technologies, learn industry best practices, and grow technical skills in a fast-paced fintech environment.

What You'll Be Doing (Responsibilities)

  • Write clean, maintainable code following team coding standards and best practices

  • Implement features and functionality based on technical specifications

  • Debug and resolve software defects with guidance from senior team members

  • Develop and execute unit tests to ensure code quality

  • Participate in code reviews to learn from experienced developers

  • Support integration activities with APIs, databases, and external systems

  • Document code and technical processes clearly

  • Collaborate with architects, DevOps engineers, and QA teams

  • Learn and apply software development principles, design patterns, and fintech domain knowledge

What We Look for In You (Required Qualifications)

  • Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent practical experience)

  • 0-5 years of professional software development experience (internships and academic projects count)

  • Proficiency in at least one programming language (Python, JavaScript/TypeScript, Go, Java, or Rust)

  • Understanding of fundamental programming concepts: data structures, algorithms, object-oriented programming

  • Familiarity with version control systems (Git) and collaborative development workflows

  • Self-starter with proven ability to work collaboratively across multiple teams and geographies, demonstrating high-quality and high-touch customer engagement throughout all phases of delivery

  • Strong problem-solving abilities and attention to detail

  • Eagerness to learn new technologies and adapt quickly

  • Languages: English required; Swiss German/German, French and/or Italian a plus

  • Location: Switzerland, with focus on Lugano

Nice To Haves (Preferred Qualifications)

  • Basic understanding of blockchain, distributed systems, or cryptography concepts

  • Exposure to API design and RESTful services

  • Interest in cryptocurrency, digital assets, or decentralized technologies

  • Experience with databases (SQL/NoSQL)

  • Familiarity with cloud platforms (AWS, Azure, GCP) or containerization (Docker)

  • Understanding of agile development methodologies

  • Contributions to open-source projects or personal coding portfolio

  • Interest in progressing into senior development or architecture roles

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Apply Now

What does a JavaScript developer in web3 do?

A JavaScript developer in web3 would likely be responsible for developing applications and other software using the JavaScript programming language within the web3 ecosystem

Web3 refers to the third generation of web technology, which emphasizes the use of decentralized technologies such as blockchain and distributed ledger systems

This means that a JavaScript developer in web3 would need to be familiar with these technologies and how to use them in the development of applications and other software

They may also be responsible for maintaining and updating existing web3 applications, as well as working with other members of a development team to create new web3 applications.