BlockChain 121

Senior FullStack Engineer – Single Wallet Connect solution – Blockchain experience required

United States

Up to $160k

I am looking for a Senior FullStack Engineer to build out a payment solution which is interpretable and a Single Wallet Connect solution.

My client is building a Mobile App and a 1 click checkout that performs bridges and swaps behind the scenes for the user, to make the UX/UI experience smooth/easy and familiar to all users.

Responsibilities:

– Lead the development of new architecture and to be knowledgeable with Web3.0 infrastructure technologies/implementations such as bridging.

– Build application/website according to designs

– Find product improvements

– Mentor/lead team members

– Review pull requests

Development Skills

– Solidity

– Modern frameworks such as Rust, GoLang or C++.

– JavaScript frameworks such as Node.js and Web3.js

Package

– Competitive base salary + Equity

If this opportunity sounds of interest to you or a colleague, please get in touch ASAP. I am happy to share further details and discuss any questions over a call.

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Frequently Asked Questions

Blockchain 121 is a recruitment and talent management firm specialising in the Web3 and crypto industry. Since 2019, we have built a robust network and deep expertise in this space, helping emerging startups and established players secure top talent. Our focus is on connecting companies with the right individuals with the rare skills required to thrive in the dynamic world of decentralisation.

We provide end-to-end recruitment and talent solutions tailored specifically for the Web3, blockchain and crypto sectors. Our services include sourcing and placing skilled engineers proficient in Rust, Solidity, Golang, ZK, AI and protocol development, as well as connecting businesses with top-tier C-suite executives and business development experts. We also offer a unique Candidate Showcase that highlights our curated network of highly sought-after professionals who are available for hire, providing exclusive access to individuals who are not actively pursuing roles publicly.

Blockchain 121 stands out by being a specialist recruiter who truly lives and breathes Web3. With five years of focused experience in the blockchain industry, we have developed an extensive network and unparalleled knowledge of the talent market. Unlike others, we don’t rely on traditional advertising—our reputation and proven track record drive all our business through referrals. Our deep industry connections, including close ties with leading VCs, unicorns, and startups, allow us to provide precise, efficient talent solutions that convert recruitment into tangible business growth.

Blockchain 121 covers a diverse range of industries within the Web3 and crypto ecosystem. We work with blockchain startups, decentralised finance (DeFi) platforms, non-fungible token (NFT) projects,  zero-knowledge (ZK) protocols and companies at the forefront of decentralising AI. Our expertise also extends to supporting large enterprises and Fortune 500 companies looking to integrate blockchain technologies, such as Warner Music Group. Whether it’s a startup building a technical team or a major corporation hiring strategic leaders, we have the knowledge and network to meet their needs.