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Jr. Javascript Developer
Houston , Texas  |  Remote
Contract to Hire Position
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Applied on January 19, 2022
Job Id #53143 Posted January 7, 2022

Remote in the US.

Looking for more of a Front End Developer, however needs to be able to work the middle layer/control layer. Start up experience a big plus.

Key Skills:

Javascript, React, Web 3, and Node JS
1 - 2 years of experience

Required Languages and Frameworks
— Solidity
— TypeScript

— Next.js

— xState

— Node.js

— GraphQL

— Web3 framework experience, eg: Truffle/Hardhat/Flow/ImmutableX
— Should understand how to perform automated code coverage and migration tests leveraging best-in-class methodologies.

— Ability to work on long-term projects within a remote team
— Writing complex Smart Contract architectures and components
— Optimizing solidity and protocol level code for speed, efficiency, and gas costs
— Developing typescript (client protocol) and python (backend protocol) for Solidity interfaces, as well as extensions and modules for outward-facing applications.

Our Ideal Candidate:
— Has +5 years experience in building frontend applications and is up to date with the latest technologies.
— Has deployed multiple running contracts on the Ethereum Blockchain
— Has written test cases for all developed smart contract functions

— Has experience working with React.
— Is an expert in CSS and CSS pre-processors.
— Is an expert in building JavaScript applications.
— Has a good eye for design and a solid understanding of user experience principles.
— Has worked in fast-paced environments.
— Has great communication skills; you work well with others to make the product better every day.


— Plus - experience developing NFT platforms

— Previous experience with zk-rollups, zk proofs, SNARKS, STARK based rollups
— Plus - experience developing cross-chain bridges


Horizontal is proud to be an Equal Opportunity and Affirmative Action Employer. We seek to provide employment opportunities to talented, qualified candidates regardless of race, color, sex/gender including gender identity and/or expression, national origin, religion, sexual orientation, disability, marital status, citizen status, veteran status, or any other protected classification under federal, state or local law.

In addition, Horizontal will provide reasonable accommodations for qualified individuals with disabilities. If you need to request a reasonable accommodation in order to complete the application or interview process, please contact

All applicants applying must be legally authorized to work in the country of employment.


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You are considered to have a disability if you have a physical or mental impairment or medical condition that substantially limits a major life activity, or if you have a history or record of such an impairment or medical condition.

Horizontal is proud to be an Equal Employment Opportunity/Affirmative Action Employer providing a drug-free workplace.


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