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Blockchain Developer
Blockchain Developer

Blockchain Developer at Nestech · Remote only · 4 - 10 years · ₹5L - ₹30L / yr · Profitable · Remote only · Posted 20 Mar 2023

Nestech's logo

Blockchain Developer

Harish Desai's profile picture
Posted by Harish Desai
4 - 10 yrs
₹5L - ₹30L / yr
Remote only
Skills
Blockchain
Web3js
Metamask
Ethereum
Smart Contracts
skill iconNodeJS (Node.js)
skill iconHTML/CSS
skill iconJavascript
skill iconRust
skill iconGo Programming (Golang)

COMPANY INTRODUCTION

 

NEST® [NESTECH]

NEST® works with a range of international clientele in the development of bespoke software solutions. NEST® specializes in data and direct engagement structures, digital marketing, data with blockchain security and much more.

NEST® founders have had decades in the visual arts, architecture, sculpture as well as inking the human canvas. More mundanely, from fifteen countries our formal training is in law, philosophy, international logistics and technology. There are currently NEST® branch offices in England, Singapore, USA and India. What happened yesterday isn’t important. We believe what you privately achieve tomorrow is.

 

JOB DESCRIPTION:

Job Title: Blockchain Developer

Location: Remote

We are looking for a blockchain developer who will be responsible for designing, implementing, and supporting a distributed blockchain-based network. The successful candidates’ primary responsibility will be analysing requirements, the designing of bespoke blockchain technologies around a unique business model, as well as the building / ongoing maintenance of the blockchain network plus associated extensions.

 

RESPONSIBILITIES

  • Research, design, develop, and test blockchain technologies
  • Brainstorm and help evaluate applications for new tools and technologies as they continually evolve
  • Maintain and extend current client- and server-side applications responsible for integration and business logic
  • Be involved in work on implementing and integrating the latest improvement proposals
  • Document new solutions as well as maintaining existing ones

 

SKILLS AND QUALIFICATIONS

  • Strong Knowledge of HTML5, Javascript, Node JS and Express+MongoDB CRUD, Rest API. Python will be an added advantage.
  • Experienced with cryptography and specific blockchain protocols, such as solidity, EVM compatible systems and/or Ethereum will be very helpful.
  • As a blockchain developer, you should also have strong analytical abilities. You will need to evaluate a company's needs and resources and implement appropriate solutions.

Experience with - web3 + metamask, Ethereum Network Protocols, Smart Contracts.

NEST® OFFERS

● Competitive Salary

● Flexible Hours

● Paid Vacations

● Fun & Creative Environment / Projects

● Quarterly Performance Reviews

● Generous Bonus Schemes

● Oversea Working Placements

● Dynamic International Clientele

● Multiple Learning Opportunities

● Control And Work On Full Product Life-Cycle

● Research and Implement Multiple New Technologies

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About Nestech

Founded :
2019
Type :
Products & Services
Size :
0-20
Stage :
Profitable

About

NEST® addresses and solves the needs of reliable, publicly set yet privately secured data, confidential engagements and control of exchange.
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Connect with the team

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Richa Bajaj
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Dipendra Singh

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Blockchain
Smart Contracts
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+6 more

Senior Blockchain Developer

Location: India, Remote

Employment Type: Full-Time / Contract

Department: Engineering


About Us

OpenAssets is building open standards for the next generation of capital markets, providing the trusted foundation for real-world asset tokenization and digital currencies.


We specialize in alternative asset digitization, offering regulatory-conscious tools to design, issue, and manage digital assets in complex financial environments. We also develop loyalty solutions that turn customer engagement into programmable digital assets, helping brands create personalized experiences that drive growth.


OpenAssets operates at the intersection of finance, technology, and regulation focused on building secure, scalable, and open infrastructure for the future of digital markets. Join OpenAssets and be part of shaping the future of digital finance!


Overview

We are seeking a Blockchain Developer to lead the technical implementation of our Web3 infrastructure. In this role, you will be responsible for the end-to-end lifecycle of smart contracts and their integration into our broader financial ecosystem. You will act as a technical authority on blockchain security, scalability, and architecture, ensuring our platform meets the rigorous demands of institutional digital finance.


What You’ll Do

Smart Contract & Blockchain Development

  • Design, develop, test, and deploy smart contracts and blockchain applications.
  • Build and maintain secure, scalable backend services for blockchain products.
  • Develop and maintain cross-platform applications that integrate with on-chain infrastructure.
  • Integrate wallets, payment systems, and blockchain APIs with existing systems.
  • Optimize for gas efficiency, transaction latency, reliability, and scalability.

Security & Quality

  • Implement and uphold best practices for blockchain security and smart contract auditing.
  • Review smart contracts and backend code for security vulnerabilities and performance issues.
  • Support audits, security reviews, and production releases.
  • Maintain high test coverage and disciplined release processes.

Collaboration & Communication

  • Collaborate with product and engineering teams to define and deliver technical requirements.
  • Communicate technical concepts clearly to both technical and non-technical stakeholders.
  • Mentor junior engineers and contribute to a strong engineering culture.
  • Stay current with emerging blockchain technologies, DeFi, and Web3 infrastructure trends.


Qualifications & Experience

  • Experience: 3+ years of software engineering experience with at least 3+ years of hands-on blockchain/Web3 development.
  • Blockchain Core: Strong experience with Solidity and EVM-compatible chains (Ethereum, Polygon, and others).
  • Production Deployment: Proven track record building, testing, deploying, and maintaining smart contracts in production.
  • Deep Technical Knowledge: Solid understanding of blockchain architecture, including consensus mechanisms, gas optimization, wallet flows, token standards, and transaction lifecycles.
  • Full-Stack Proficiency: Good understanding of the MERN stack (MongoDB, Express.js, React, Node.js) and how full-stack applications integrate with blockchain infrastructure.
  • Backend Expertise: Proficiency in Node.js and TypeScript with experience building RESTful backend applications.
  • Testing & Tooling: Experience with smart contract and backend testing frameworks (e.g., Foundry, Hardhat, Mocha, Jest) and Web3 libraries like Ethers.js or Web3.js.
  • Cloud Infrastructure: Hands-on experience with AWS, including deploying, managing, and scaling services like EC2, S3, Lambda, and RDS.
  • Databases & DevOps: Comfortable with relational (PostgreSQL) and non-relational (MongoDB) databases, Git, and collaborative development workflows.
  • Soft Skills: Strong communication skills in English with the ability to articulate technical concepts to diverse stakeholders.


Nice to Have

  • Familiarity with the Move language (Sui, Aptos).
  • Experience with smart contract audit tooling such as Slither, Mythril, or Manticore.
  • Exposure to RWA tokenization, DeFi, stablecoins, NFTs, staking, or bridging protocols.
  • Professional background in fintech, payments, or regulated blockchain use cases.


We are committed to providing equal opportunity for qualified applicants to contract positions, regardless of race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status. This is a contract opportunity, not a direct employment role.


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