Full Time

Senior Software Engineer ( Web3 ) $250K - $300K ( NYC )

Call For Referral
$250K - $300K* / year (about $120–$144 an hour)

Job Description

This job was posted over 30 days ago, so it has most likely closed. See newer jobs like it.

Written by AI from the job title and company, not by Call For Referral, so some details may not match this job. The employer's own page has the real description.

Job Overview

As a Senior Software Engineer specializing in Web3 technologies at Call For Referral, you will be at the forefront of pioneering decentralized applications and blockchain-based solutions. You will work collaboratively with cross-functional teams to design, develop, and optimize high-performance software systems that leverage cutting-edge technology in the blockchain space. Your expertise will contribute to shaping the overall architecture and functionality of our products, ensuring they meet the evolving needs of our clients in this rapidly growing sector.



Job Responsibilities

  • Design and implement scalable blockchain solutions and decentralized applications.
  • Collaborate with product managers and designers to define software requirements and user interfaces.
  • Contribute to the development of smart contracts and consensus algorithms.
  • Conduct peer code reviews and maintain high coding standards across the engineering team.
  • Identify and rectify any performance bottlenecks in existing applications.
  • Stay up-to-date with emerging trends and advancements in the blockchain and Web3 ecosystem.
  • Mentor junior engineers and contribute to the overall growth of the engineering team.


Qualifications

  • Bachelor's or Master’s degree in Computer Science, Software Engineering, or a related field.
  • Minimum of 5 years of software development experience, with at least 3 years in blockchain or Web3 projects.
  • Proficiency in smart contract development using Solidity and experience with Ethereum or similar platforms.
  • Strong understanding of decentralized protocols and token standards (ERC20/ERC721).
  • Experience with modern web technologies, including JavaScript frameworks (React, Angular, or Vue.js).
  • Solid understanding of cryptography, security best practices, and vulnerabilities in distributed systems.
  • Excellent problem-solving skills and the ability to work independently as well as in a collaborative team environment.


Technologies & Tools

The ideal candidate for this position will work with a variety of advanced technologies and tools including Solidity for smart contract development, Ethereum and other blockchain platforms, JavaScript frameworks such as React and Node.js for frontend and backend development, as well as tools for version control like Git. Familiarity with decentralized infrastructure, IPFS, and emerging decentralized finance (DeFi) solutions will also be highly beneficial.



Ideal Candidates

Ideal candidates for the Senior Software Engineer (Web3) position are innovative thinkers with a passion for decentralization and blockchain technology. They possess the ability to approach complex problems with creative solutions and exhibit strong analytical skills. Candidates should demonstrate an eagerness to learn and adapt to new technologies quickly, coupled with a collaborative mindset and excellent communication skills. A proactive attitude towards mentorship and contributing to team knowledge-sharing is also highly valued in our work culture.

In the Milwaukee-Waukesha, WI metro area, the middle pay across its 821,000 jobs was $51,160 a year in May 2025, says the Bureau of Labor Statistics. Pay calculator →

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