Blockchain engineer, Full Stack engineer - 24269

Posted more than 30 days ago
Specialization: Front-End / JS C / C++ / Embedded Golang Node.js .NET Python
Open to offers now
5 000 $
Poland
Lublin, Warsaw, Gdansk, Poznan
More than 5 years
Upper Intermediate
Considering options
Full-time office work
Part-time work
Remote work (full-time)
Freelance (one-time projects)
Relocate
Senior Blockchain Developer with 5+ years of experience in DApps using Web3 and Smart Contract development with Solidity and Rust. Hands-on experience in cross-chain protocol development between EVM and Non-EVM chains using LayerZero and proficiency in NFT game development. Interested in writing code that is reusable and scalable, following modern coding best practices and proficient in TDD/BDD.

Skills

HTML5/CSS3

Web3

Polkadot

React/Redux

JavaScript/TypeScript

Truffle

Cosmos

Python

Solidity

Hardhat

C#

Golang

Rust

Remix

Unity

CI/CD


Certificates 

Certified Smart Contract Auditor 09/2015

TOEFL 02/2011

Education
Marketing Institute of Singapore
Bachelor
Specialty: Arts in Marketing
September 2015 - August 2019

Stansfield College
Bachelor
Specialty: Computer Science
September 2011 - June 2015

Experience
Frontend Developer
NDA
September 2019 - January 2021

• Collaborated with UX/UI designers to improve user interface and realized responsive design, resulting in a 25% increase in mobile conversions

• Wrote a responsive Angular application that increased website traffic by 40% by improving crossbrowser compatibility

• Completed automated testing using frameworks such as Jest and achieved a test coverage of 90%, resulting in a 50% reduction in production defects and improved code reliability

• Realized Vue.js server-side rendering (SSR) to improve initial page load time by 40% and enhance search engine optimization (SEO)

• Launched a scalable React application, resulting in a 30% increase in user engagement


Full-Stack Developer
NDA
February 2021 - December 2021

• Implemented zero-knowledge proofs for privacy-preserving transactions, reducing information leakage by 50%

• Adopted a CI/CD pipeline to reduce deployment time by 50% and ensure a smooth delivery process for new features and bug fixes

• Explored Hyperledger Fabric's private channels and endorsement policies, contributing to a 25% improvement in data privacy and transaction validation efficiency

• Produced a highly optimized chaincode (written in Go) to process and format client data, achieving a 50% reduction in processing time and improving overall efficiency of data storage on the ledger


Senior Software Engineer
NDA
January 2022 - April 2023

• Created a cross-chain protocol between EVM and non-EVM chains using LayerZero to trade and generate 12% annual profit

• Wrote large portions of Rust's original green-threading runtime, and ported the entire runtime from C++ to Rust

• Developed the core smart contract of an Initial DEX Offering (IDO) crowdfunding platform using Solidity, resulting in raising $1.5 million in funding within the first month.

• Built the platform's frontend with Web3.js and TypeScript to provide a user-friendly and seamless crowdfunding experience to 1,000+ investors

• Led a team of 5 developers in the successful delivery of a large-scale e-commerce platform, resulting in a 30% increase in online sales within the first quarter and able to use continuous integration and distribution pipelines to deploy applications

• Worked for a fast-growing startup building Hybrid Consensus for Layer 1 blockchain in collaboration with some of the world's top PhDs


Similar candidates
Open to offers now
5 000 $
Poland
Lublin, Warsaw, Gdansk, Poznan
More than 5 years
Upper Intermediate
Considering options
Full-time office work
Part-time work
Remote work (full-time)
Freelance (one-time projects)
Relocate
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