Blockchain Developer

Role Overview

We're seeking a MERN Stack Developer with experience in Web3 development to join our team. The ideal candidate will be comfortable building full-stack applications, integrating smart contracts, and working in a fast-paced startup environment.

Responsibilities

• Develop and maintain full-stack applications using MongoDB, Express.js, React.js, and Node.js
• Integrate smart contracts and blockchain functionality using Web3.js, Ethers.js, or similar libraries
• Collaborate with product managers, designers, and blockchain engineers
• Write clean, maintainable, and testable code
• Troubleshoot and debug applications
• Stay updated with the latest Web3 trends and technologies

Requirements

• 1+ year of hands-on experience with the MERN stack
• Basic to intermediate knowledge of smart contracts, Ethereum, and Web3.js/Ethers.js
• Familiarity with Solidity and Ethereum development tools (e.g., Truffle, Hardhat)
• Understanding of REST APIs and integration practices
• Strong problem-solving skills and a proactive attitude
• Good communication and collaboration skills

Bonus Skills

• Experience with IPFS, The Graph, or Layer 2 solutions
• Contributions to open-source Web3 projects
• Knowledge of NFT standards or DeFi protocols

What We Offer

• Competitive salary and performance-based incentives
• Flexible working hours and remote-friendly culture
• Opportunity to work on cutting-edge Web3 projects
• A collaborative, supportive, and innovative environment

Job Summary 

We are looking for a blockchain developer who will be responsible for designing, implementing, and supporting a distributed blockchain-based network.

 Experience: 2+

Location: Jaipur 

Responsibilities: 

• Research, design, develop, and test blockchain applications
• Brainstorm and help evaluate applications, technologies and tools as these continually evolve
• Maintain and extend current distributed applications, be responsible for its integration and workflows
• Document new solutions as well as maintaining that of existing ones
• Develop and maintain artefacts
• Participate in presales activities when it is required 

Requirements:                       

• Strong blockchain development experience on network, protocol and application layer
• Experience working with open-source platforms Hyperledger, Ethereum etc.
• Understanding the private blockchain network. Desirable.
• Experience with different PAAS solutions offered by different cloud platforms such as Azure, AWS etc. Desirable.
• Strong experience with computer networking is desirable including details of network topology and OSI layer protocols.
• API integration experience with 3rd party applications is desirable
• Experience with Secure coding practices is a plus
• Think out of the box and don't give up easily, as blockchain is a fairly complex concept and there isn't much help available in programmers forums.

Role:Blockchain Developer

Salary: 4,00,000 - 5,400,000 P.A.

Industry:https://www.naukri.com/it-services-consulting-jobs">IT Services & Consulting

Functional Area:https://www.naukri.com/consulting-jobs">Consulting

Role Category:IT Consulting

Employment Type:Full Time, Permanent

Education

UG:B.Tech/B.E. in Any Specialization

Company Profile

Appinop  technologies Pvt ltd

About Appinop

Innovation begins with like-minded people aiming to transform the world together.

We invite you to become a part of an organization that has been helping clients transform their business by fusing insights, creativity, and technology. At Appinop, we embrace a diverse mix of talented people who come here to stay and do their best work. 

At Appinop, we transform passionate individuals into proficient professionals dedicated to exploring new frontiers in Software development. Here you will get the opportunity to work with technical craftsmen that are pioneer in latest technologies

We promote a culture of equality, learning, collaboration, and creative freedom so that our employees grow.

For more information about our solutions and organization, visit www.Appinop.com, 

Company Info:

Corporate Address: Appinop Technologies - 41, Prince Road, Ajmer Rd, Vidhyut Nagar - A, Jaipur, Rajasthan 302021

• 3-5 years of professional experience in web development with a strong focus on JavaScript stack technologies.
• Proven experience in integrating blockchain technology into web applications, with a deep understanding of blockchain protocols, smart contracts, and decentralized applications (dApps).
• Proficiency in multisignature, multiparty computation and 3rd party Node provider integration
• Experience with public blockchain platforms such as Bitcoin, Ethereum, etc.
• Solid understanding of RESTful APIs and web services.
• Strong problem-solving skills and the ability to troubleshoot complex issues.
• Excellent communication and collaboration skills.
• Ability to thrive in a fast-paced, agile environment and adapt to changing priorities.
• Experience with continuous integration and deployment (CI/CD) pipelines is a plus.
• Experience in setting up Bitcoin core, and Geth node is a plus

1. Work as a Senior Developer or Tech Lead for blockchain-based projects.
2. Lead small development teams (3-5 people).
3. Work in Agile/Scrum teams.
4. Deliver quality solutions to customers by implementing relevant tools/ frameworks/ libraries in Hyperledger.

1. Experience in the role of a senior developer/tech lead for blockchain and non-blockchain-based projects. (At least 3 to 5 projects)
2. Hands-on experience with Enterprise Blockchain platforms (particularly Hyperledger ONLY) and a good awareness of others, to evaluate and drive the selection of the right platform for the area of implementation.
3. Must be well versed with software design and development methodologies for web application development using Java/Java EE/Open Source or Microsoft .NET technologies.
4. Mandatory experience in implementing Blockchain applications/projects using MEAN/MERN/Java/Go technology stack, Git, Linux/ Ubuntu/ MacOs/ Windows/ Virtual machines.
5. Understanding of smart contracts and experience in developing smart contracts (Node/ JavaScript/ Go/ Java) for at least 2 live projects.
6. Knowledge of design considerations, best practices, and standards for designing smart contract-based solutions for decentralized applications.
7. Understanding of common tools/ frameworks/ libraries used for quality software development and Blockchain implementation, including those for Hyperledger.
8. Knowledge of common architecture patterns for applications (MVC, SPA), cloud, data storage, security, API/Integration, serverless architectures, etc.
9. Experience in using (and configuring) CI/CD pipelines (and know-how of DevOps) for blockchain projects.
10. Experience in leading small development teams (3-5 people) and should have worked in Agile/Scrum teams.
11. Strong verbal and written communication skills; must be comfortable with client and stakeholder interactions.
12. Good understanding of IPFS and IPNS protocols.

1. Interest to learn and apply learning to design and implement blockchain solutions
2. Record of publication of good quality blogs and papers.
3. Completion of relevant certifications: Blockchain developer, Java EE / Web Application Developer, Cloud Certification, etc.

About us:

Zemoso Technologies is a Software Product Market Fit Studio that brings silicon valley style rapid prototyping and rapid application builds to Entrepreneurs and Corporate innovation. We offer Innovation as a service and work on ideas from scratch and take it to the Product Market Fit stage using Design Thinking->Lean Execution->Agile Methodology.

We were featured as one of Deloitte Fastest 50 growing tech companies from India thrice (2016, 2018 and 2019). We were also featured in Deloitte Technology Fast 500 Asia Pacific both in 2016 and 2018.

We are located in Hyderabad, India, and Dallas, US. We have recently incorporated another office in Waterloo, Canada.

Our founders have had past successes - founded a decision management company acquired by SAP AG (now part of Hana Big data stack & NetWeaver BPM), early engineering team of Zoho (leading billion $ SaaS player) & some Private Equity experience.

Marquee customers along with some exciting start-ups are part of our clientele.

We are looking for a Blockchain Developer with a focus on scaling best

practices, reducing engineer toil, and ensuring reliability and stability of the NST Blockchain Platform. This engineer will also work with all engineers to understand pain points and find a balance in the “now” vs the “future”, while also proposing foundational Blockchain. This individual will need to take into consideration performance, reliability, stability, and developer happiness to ensure that we are providing a world-class community-building experience for our internal team, external contributors, creators, and users.

Priorities can change in a fast-paced environment like ours, so this role

includes, but is not limited to the following:

1. At least 3+ years of work experience in blockchain related projects

(preferably enterprise blockchain)

2. Good knowledge in Hyperledger Fabric related projects.

3. Knowledge of Data Structures is preferred.

4. Good with either one of the programming languages: JavaScript or Golang

(preferably Golang)

5. Experience working with some DevOps tools like docker, docker-compose,

ansible. (Knowledge of Kubernetes is even better)

6. Experience working with both SQL & NoSQL Databases, DB Migration,

Disaster Recovery.

7. Should be able to manage a small team, in terms of work management,

coding sessions, code review.

8. Good communications skills.

9. Additional certification in either Hyperledger or Kubernetes is preferred.

Technical Experience 

• Solid understanding of and experience in BlockChain Development preferred 
• 2+ years of Blockchain application development experience on platforms such as Ethereum, Hyperledger, BigchainDb, Multi-Chain.  
• Experience in solution building on Blockchain technology.  
• Experience on development tools such as Geth, Hyperledger Fabric/Sawtooth, Composer, Solidity Remix Functional  
• Basic understanding of Web applications architecture and protocols. 
• Any additional expertise with Python, containerization (Docker) and additional Cloud exposure also a huge plus
• Any previous integration expertise, Strong in Agile, Banking or Financial Service development expertise, as well as software development in a large Enterprise environment, also required Security Architecture / Cryptography
• Front-end development experience in HTML, CSS, JavaScript, ES6/TypeScript Angular, Node.js, ReactJS . 

We are looking for a blockchain developer who will be responsible for designing, implementing, and supporting a distributed blockchain-based network. Primary responsibility will be analyzing requirements, designing blockchain technology around a certain business model, and building and launching a blockchain network.

Essential Skills :

• Strong software development background

• Experience working with large codebases

• Solidity, Web3.js, Ethereum, Truffle, Remix, Smart Contracts, Cryptography, Wallets, Blockchain Fundamentals, DeFi & Banking Domain

• Experience working with open-source projects

• Proficiency in one of the following languages: C++, Java, JavaScript 

• Strong knowledge of common algorithms and data structures

• Familiarity with basic cryptography

• Familiarity with P2P networks

• Strong knowledge of bitcoin-like blockchains / Stable coins

• Strong knowledge of concurrency and writing efficient and safe multithreaded code

• Strong knowledge of STL, C++11 

• Proficiency in the Qt Widgets module 

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 the global blockchain community—work on implementing and integrating the latest improvement proposals

• Document new solutions as well as maintain of existing ones

• Working with various departments to coordinate and develop digital CRM solutions including bespoke in-house software
• Writing clean, manageable code and maintaining proper documentation
• Writing smart contract integration in JS using web3 like libraries

What you need to have:

• Minimum 2 years of hands-on experience with Solidity and Ethereum like Blockchains
• Experience in deploying smart contracts
• Experience in MEAN stack
• Understanding of blockchain concepts
• Experience with distributed storage is plus
• Ability to work within the team and independently
• Strong organizational, time management and analytical skills    

https://electronlabs.org/">Electron Labs is building a new protocol to make various blockchains interoperable. Our goal is to enable cross-chain contracts to connect with each other in the same way as same-chain contracts connect i.e., via function calls. We have developed a new in-house tech called https://garvitgoel.medium.com/what-is-bdlc-and-how-it-works-5716fbbacde8">Bi-Directional Light Client that allows a smart contract to independently verify whether the cross-chain transactions submitted to it are valid. We further use ZK-SNARKS to reduce the gas cost of running the light client on-chain.

Desired Qualifications

1. A good grasp of blockchain fundamentals, various consensus algorithms, and detailed knowledge of at least one major blockchain.
2. Previous work (demonstrable) in blockchain technology, web3, or protocol development
3. In-depth understanding of Number Theory and Cryptography. Knowledge of Cryptographic Algorithms and zero-knowledge proofs are highly preferred.
4. Superior mathematics and problem-solving skills, excellent pattern recognition, passion for solving puzzles.
5. Proficiency in one of the following languages: Go-lang, Rust, is highly preferred. Working knowledge of Solidity, Javascript, Python, or similar scripting languages puts you in front of our list
6. Grounded research skills and an ability to absorb documentation quickly
7. Strong background in Computer Science. Knowledgeable in Algorithms and Data Structures.

Roles and Responsibilities

1. You will be assigned one blockchain (Ethereum /Polygon /NEAR /tendermint /Polkadot/Aleo). You will be required to implement the light client of this blockchain in https://docs.circom.io/">Circom language (Domain Specific Language for ZK-SNARKS).
2. Write go-lang based networking relayers that enable communication between blockchains and zk-provers.
3. Maintain relayer and zk-prover infrastructure (cloud machine and codebase)
4. Write kickass documentation.

Location: Delhi NCR, India | Remote