Blockchain Developer - Remote

Cloudpso; Dallas, Northern (TX, KY); Hybrid; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical insurance

Company gadgets

Paid time off

Stock options (ESOP)

Competitive salary and benefits

Job summary

CloudPSO is seeking a Solidity Developer for remote work to design and build secure, scalable smart contracts across multiple EVM networks. You’ll collaborate with backend engineers, product leadership, and infrastructure teams to deliver production-ready blockchain systems.

The role emphasizes architecture, security, optimization, and real-world Web3 challenges, including wallet flows and transaction logic integration.

Qualifications

• 3+ years of Solidity development experience.
• Strong experience with Hardhat.
• Strong experience with Ethers.js.
• Strong experience with TypeScript.
• Deep understanding of smart contract security.
• Gas optimization and EVM internals.
• Upgradeability of contracts.
• Experience deploying on Ethereum, Polygon, Arbitrum, Base.
• Experience integrating contracts with backend/off-chain systems.
• Familiarity with event indexing and transaction lifecycle handling.
• Strong Git and collaborative development workflow.

Responsibilities

• Design and develop Solidity smart contracts for reward distribution, airdrop claim systems, and staking logic.
• Optimize contracts for scalability and security.
• Integrate contracts with backend services and event-driven systems.
• Collaborate with backend and frontend teams on wallet flows and transaction logic.
• Conduct internal contract reviews and contribute to security best practices.
• Participate in architecture discussions for multi-chain infrastructure.

Skills

Solidity

Hardhat

Ethers.js

TypeScript

Tools

Node.js

NestJS

Supabase

Docker

GitHub Actions

Vercel

IPFS

Job description

CloudPSO is a Information Technology Outsourcing (ITO) company that assists in the acquisition of qualified staff to address complex digital problems in order to increase efficiency, reduce costs, and maintain compliance.

CloudPSO was founded in 2017 with an aim to provide businesses with a competent and skilled workforce at any given point in time and from any geographic region.

We are a US-based company with headquarters in Dallas (Texas) and a center of excellence in Pakistan. We have over 200 facility seats with an additional Work-From-Home facility. CloudPSO has skillful in-house software development teams with state-of-the-art tools, the latest VOIP technology platform, and secure infrastructure.

Our core values consist of client satisfaction, commitment, quality, and transparency.

We, at CloudPSO, hunt, analyze, recruit, train, and retain top-notch talent for you to help achieve your business goals. Optimizing mission-critical and day-to-day enterprise IT operations, CloudPSO enables businesses to transform, innovate and scale.

Job Description

This is a remote position.

Role Overview

We’re looking for a Solidity Developer to help design and build the smart contract infrastructure powering the project’s reward and distribution systems.

You’ll work closely with backend engineers, product leadership, and infrastructure teams to build secure, scalable, and production-ready blockchain systems across multiple EVM networks.

This is a high-ownership role suited for engineers who are comfortable working on architecture, security, optimization, and real-world Web3 product challenges.

- Blockchain

• Solidity
  
• Hardhat
  
• Ethers.js
  

- Backend Collaboration

• Node.js
  
• NestJS
  
• Supabase
  

Infrastructure

• Docker
  
• GitHub Actions
  
• Vercel
  
• IPFS
  

Responsibilities

- Design and develop Solidity smart contracts for:

• reward distribution
  
• airdrop claim systems
  
• referral and staking logic
  
• wallet eligibility verification
  
• Merkle proof systems
  
• signature-based validation
  
• role-based permissions
  

- Optimize contracts for:

• scalability
  
• security
  

- Integrate contracts with backend services and event-driven systems

- Collaborate with backend and frontend teams on wallet flows and transaction logic

- Conduct internal contract reviews and contribute to security best practices

- Participate in architecture discussions for multi-chain infrastructure

Requirements

- 3+ years of Solidity development experience

- Strong experience with:

• Hardhat
  
• Ethers.js
  
• TypeScript
  

- Deep understanding of:

• smart contract security
  
• gas optimization
  
• EVM internals
  
• upgradeable contracts
  

- Experience deploying and maintaining contracts on EVM chains such as:

• Ethereum
  
• Polygon
  
• Arbitrum
  
• Base
  

- Experience integrating smart contracts with backend/off-chain systems

- Familiarity with:

• event indexing
  
• transaction lifecycle handling
  

- Strong Git and collaborative development workflow experience

Nice to Have

- Experience with:

• account abstraction
  
• EIP-712 signatures
  
• relayers / gasless transactions
  
• staking or reward systems
  

- Previous work on:

• high-volume transaction systems
  
• Web3 analytics or campaign tooling
  
• Security audit experience
  

Rust or Solana ecosystem familiarity

• Medical insurance
  
• Company gadgets
  
• Paid time off
  
• Stock options (ESOP)
  
• Competitive salary and benefits package.
  
• Opportunities for professional development and growth.
  
• Collaborative and innovative work environment.
  
• Chance to work on cutting-edge cloud projects.
  
• Supportive and inclusive company culture