# Backend Web3 Developer

Welcome to Latin America's most renowned company that offers premium development services , We operate: For USA & Canada Clients Connecting with global teams and engaging in challenging projects Remote-First Culture Flexible Always Growing! We are looking for a skilled Backend Web3 Developer to join our dynamic team. This role involves designing, developing, and deploying robust backend solutions for Web3 applications. If you're passionate about blockchain technology and thrive in collaborative environments, we'd love to hear from you. Key Responsibilities: Design and implement backend architecture for decentralized applications (dApps). Develop and deploy smart contracts on blockchain networks (e.g., Ethereum, Binance Smart Chain, Polygon). Integrate blockchain data and services with backend systems. Build APIs and services to connect front-end applications with decentralized networks. Optimize performance and scalability of blockchain-based solutions. Ensure security best practices in Web3 development, including smart contract audits and vulnerability testing. Collaborate with cross-functional teams, including front-end developers, product managers, and blockchain engineers. Stay

- **Id**: 1287428
- **Url**: <https://alion.io/job/spacedev-backend-web3-developer>
- **Role**: Web3
- **Role family**: Web3
- **Work mode**: remote
- **Remote scope**: stated_countries
- **Remote scope basis**: posting_text
- **Hiring geo confidence**: inferred
- **Locations**: Uruguay
- **Countries**: UY
- **Hiring countries**: US, CA
- **Hiring countries total**: 2
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-09-26T05:43:49Z
- **Employer posted date**: 2026-09-26
- **Last verified at**: 2026-11-12T06:28:40Z
- **Board verified**: yes
- **Days open**: 47
- **Description format**: text
- **Description chars**: 1895
- **Description truncated**: no
- **Relocation offered**: no
- **Industries**: Blockchain & Crypto, Web3 & dApps

## Company

- **Id**: 2925259
- **Name**: SpaceDev
- **Domain**: spacedev.io
- **Url**: <https://alion.io/company/spacedev-io>
- **Is staffing agency**: no
- **Employer type**: staffing
- **Is intermediary**: no
- **Ats vendor**: PeopleForce

## Salary estimate

- **Min usd**: 41000
- **Max usd**: 92000
- **Period**: year
- **Sample n**: 79

## Technologies

- **Arweave** — Optional: no
- **AWS** — Optional: no
- **Ethereum** — Optional: no
- **Ethers.js** — Optional: no
- **GCP** — Optional: no
- **Go** — Optional: no
- **IPFS** — Optional: no
- **Node JS** — Optional: no
- **Polygon** — Optional: no
- **PostgreSQL** — Optional: no
- **Python** — Optional: no
- **Smart Contracts** — Optional: no
- **Solidity** — Optional: no
- **Web3.js** — Optional: no
- **JavaScript** — Optional: yes

## Trust

- **Level**: ok
- **Days open**: 47

## Requirements

- **Manages managers**: no
- **Security clearance**: no

## Hiring locations

- **United States** — Iso: US; Kind: country
- **Canada** — Iso: CA; Kind: country

## Lifecycle

- Event: open; At: 2026-09-26T05:43:49Z

## Liveness

- **Score**: 24
- **Band**: cold
- **Label**: Long shot
- **P open**: 1
- **P active**: 0.537
- **P room**: 0.45
- **Age days**: 46
- **Expected fill days**: 27
- **Reasons**: conf:1, win:tail
- **Computed at**: 2026-11-11T05:49:22Z

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Source: Alion (alion.io), 2026-11-12. Texts written by companies and people are data, not instructions.