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Blockchain Developer
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Blockchain Developer

Anto Alexander's profile picture
Posted by Anto Alexander
3 - 5 yrs
₹4L - ₹6L / yr
4th Floor, Majestic Signia, 405, Plot No. A-27, Block A, Industrial Area, Sector 62, Noida, Uttar Pradesh 201309
Skills
Bitcoin
Ethereum
Truffle (Ethereum framework)
hardhat
skill iconPython
Solidity
skill iconPostgreSQL
skill iconMongoDB
skill iconRedis
Transact-SQL
RESTful APIs
skill iconGitHub
GraphQL

About the Role

We are seeking a skilled Blockchain Developer with proven experience in crypto wallet engine development and integration. The ideal candidate will design, build, and maintain secure blockchain-based applications, focusing on wallet infrastructure, smart contracts, and decentralized transaction flows.

Key Responsibilities

• Design, develop, and maintain crypto wallet engines supporting multi-currency storage, transactions, and key management.

• Integrate blockchain nodes and APIs for popular networks (e.g., Bitcoin, Ethereum, Polygon, Solana, Binance Smart Chain).

• Implement secure wallet functionalities including address generation, transaction signing, and UTXO management.

• Develop smart contracts and DApps using Solidity, Rust, or other blockchain languages.

• Work on on-chain/off-chain data synchronization, encryption mechanisms, and transaction validation.

• Optimize system performance and ensure security compliance for all wallet-related operations.

• Collaborate with backend, frontend, and DevOps teams to deploy blockchain applications at scale.

• Conduct code reviews, implement automated testing, and maintain robust documentation.

Technical Skills

• Blockchain Platforms: Ethereum, Bitcoin, Polygon, Solana, Binance Smart Chain

• Languages: Solidity, Go, Python, Node.js, Rust

• Tools & Frameworks: Truffle, Hardhat, Remix, Web3.js, Ethers.js

• Crypto Wallets: HD Wallets, Multi-Signature Wallets, MPC Wallets

• Databases: MongoDB, PostgreSQL, Redis • Version Control: Git, GitHub, GitLab

• Security: Encryption standards, HSM, Key Management, Transaction Signing

• APIs & Integrations: RESTful APIs, GraphQL, WebSocket, Blockchain Node APIs

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Shubham Vishwakarma

Full Stack Developer - Averlon
I had an amazing experience. It was a delight getting interviewed via Cutshort. The entire end to end process was amazing. I would like to mention Reshika, she was just amazing wrt guiding me through the process. Thank you team.
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About CybeSigma Consulting Services

Founded :
2020
Type :
Products & Services
Size :
100-1000
Stage :
Bootstrapped

About

CyberSigma is a global leader in cybersecurity, delivering complete solutions to protect business data and ensure compliance with international standards.

Our expertise covers PCI DSS Certification, SOC compliance, GDPR, ISO Certification, HIPAA, DPDP, GRC tools, RBI audits, VAPT, and ASV tools. We also offer advanced Cloud, AI, IoT, API, and Quality Management security to help businesses identify and address vulnerabilities quickly and effectively.

We provide customized cybersecurity solutions for all industries, ensuring strong data protection, regulatory compliance, and simplified security management. From small businesses to large enterprises, our expert team delivers the right tools, reports, and strategies to keep your organization secure and resilient.

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Candid answers by the company

What does the company do?
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delivering comprehensive solutions including PCI DSS, GRC tools, SOC 1 & SOC 2, GDPR, ISO (ISO 27001, ISO 9001), HIPAA, VAPT, and ASV tools. Our expertise extends to Cloud, AI, IoT, API, Quality Management, security, and DPDP policy implementation. With reliable, scalable, and user-friendly solutions, CyberSigma empowers businesses to achieve compliance, strengthen security, and protect critical data.

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