Full-stack Blockchain Developer (Smart Contracts-focused)

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Supercoder is an AI-powered career development platform to connect developers around the world to remote job opportunities with competitive pay.

About the Role

Our client, is looking for a Full-stack Blockchain Developer (Smart Contracts-focused)

What You’ll Do

Design, develop, and deploy smart contracts in

Solidity

(EVM) and / or

Rust

(e.g., Solana)

Perform security reviews (auth / roles, reentrancy, frontrunning / MEV, overflow), gas / fee optimization

Integrate on-chain and off-chain systems :

backend APIs / workers

and

web / mobile DApps

Build and ship

both web and mobile apps

(store submissions in collaboration with the team)

Own testing / automation (unit / property tests, CI / CD) and monitoring in production

Evolve wallet, token, staking, bridge, and related core features; handle production incidents

Must-Haves

Eligible to enter and work in Korea; willing to work in Korea

Mid-level+ proficiency in

Solidity

or

Rust

(one or more)

Frontend : experience with

React, React Native, Vue

(≥ 2 of these)

Backend : PHP (preferred)

or Node.js; strong

SQL

(MySQL / PostgreSQL), schema design & optimization

Practical understanding of smart-contract testing / auditing and deployment / operations

Proficiency with Git workflows, code reviews, and issue tracking

Nice to Have

Mainnet deployments on EVM / Solana; multi-chain architecture experience

Proven security / performance improvements (audit fixes, gas cuts, MEV mitigation)

MQ / cache / cron workers; high-traffic and payments processing

AWS / GCP, Docker / K8s, IaC (Terraform)

Strong English technical writing / communication

Applicants from India are welcome

(visa / work authorization support negotiable; merit-based hiring)

Terms

Employment : Full-time (probation negotiable) or Contract (project-based)

Location : Korea / Remote

Compensation : Competitive salary

token / stock options (negotiable)

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