Backend Developer (Golang)

PT Media Wave Interaktif; Jakarta Utara; On-site; IDR 1,081,665,765 - 1,802,776,275; Full time

Job summary

PT Media Wave Interaktif seeks a seasoned Web3 backend developer with Solidity expertise to build and secure Ethereum smart contracts and blockchain services. You will work on backend systems using Node.js/Python/Java, integrating with various chains and decentralised storage.

Portfolio of web3 projects is required.

Qualifications

• Bachelor's degree in Computer Science, Engineering, or a related field.
• 3+ years of backend development experience, with 1+ years focused on Web3/blockchain projects.
• Portfolio of deployed smart contracts or contributions to open-source Web3 projects (GitHub/GitLab links).

Skills

Solidity

Blockchain concepts

Backend development

Smart contract security

Education

Bachelor's degree in CS/Engineering or related field

Tools

Web3.js

Ethers.js

Hardhat

Truffle

Foundry

Docker

Kubernetes

CI/CD

Job description

Proficiency in Solidity for Ethereum smart contract development.

Experience with other blockchain platforms (e.g., Binance Smart Chain, Polkadot, Solana, Cosmos, or Layer 2 solutions like Polygon/zkSync).

Familiarity with Rust, Go, or C++ for non-EVM chains (e.g., Solana, NEAR, or Polkadot).

Knowledge of decentralized storage systems (IPFS, Filecoin, Arweave).

Strong experience with backend languages/frameworks (e.g., Node.js, Python, Java, or Ruby).

Expertise in building RESTful/gRPC APIs and integrating with blockchain networks.

Familiarity with database systems (SQL, NoSQL) and decentralized databases (e.g., OrbitDB).

Web3 Tools & Libraries

• Hands-on experience with Web3.js, Ethers.js, Hardhat, Truffle, or Foundry.
• Knowledge of The Graph for indexing blockchain data.
• Experience with oracle solutions (Chainlink, Band Protocol).

DevOps & Infrastructure

• Proficiency with Docker, Kubernetes, and CI/CD pipelines.
• Experience deploying nodes (e.g., Ethereum, Bitcoin, or others) and managing blockchain infrastructure.
• Familiarity with cloud platforms (AWS, GCP, Azure) and decentralized cloud services (e.g., Fleek, Akash).

Security

• Understanding of smart contract security best practices (e.g., reentrancy, overflow/underflow).
• Experience with auditing tools like Slither, MythX, or CertiK.

Education & Experience

• Bachelor's degree in Computer Science, Engineering, or a related field (or equivalent practical experience).
• 3+ years of backend development experience, with 1+ years focused on Web3/blockchain projects.
• Portfolio of deployed smart contracts or contributions to open-source Web3 projects (provide GitHub/GitLab links).

Soft Skills

• Strong problem-solving skills and adaptability to rapidly evolving technologies.
• Passion for blockchain, decentralization, and the future of Web3.
• Excellent communication skills for collaborating with frontend developers, designers, and stakeholders.

Nice-to-Have

• Experience with DeFi protocols, NFTs, DAOs, or tokenomics design.
• Knowledge of zero-knowledge proofs (zk-SNARKs, zk-STARKs) or Layer 2 scaling solutions.
• Contributions to blockchain communities (e.g., Ethereum Improvement Proposals, governance participation).
• Certifications like Certified Blockchain Developer (CBD) or Blockchain Security certifications.