Blockchain Developer

Company

Crypto made easy 🚀 

We are the bridge between your crypto world and everyday life; trade pairs, book flights and hotels, and purchase gift cards with your favourite currencies. All in one best-in-class digital experience. It's not rocket science.

🔗Apply link at the bottom of this post — don’t miss it!

Why Join?

By joining CryptoXpress, you'll be at the cutting edge of merging digital currency with real-world services and products. We offer a stimulating work environment where innovation and creativity are highly valued. This remote role provides the flexibility to work from any location, promoting a healthy work-life balance. We are dedicated to fostering growth and learning, offering ample opportunities for professional development in the rapidly expanding fields of AI, blockchain technology, cryptocurrency, digital marketing and e-commerce.

Role Description

We are seeking a Blockchain Engineer for a full-time remote position at CryptoXpress. This role focuses on building secure and scalable blockchain integrations and developing internal tools that enhance transparency, monitoring, and transaction insights across our crypto platform.

The ideal candidate will have experience working with Web3 technologies and an interest in creating advanced tools such as wallet tracking systems, funds flow visualization, and smart contract evaluation frameworks.

Key Responsibilities

• Design and build internal blockchain intelligence tools — such as wallet activity monitors, transaction flow visualizers, and wallet-to-wallet linkage maps — to support compliance, analytics, and user trust.
• Develop and optimize secure Web3 integrations, including wallet connection layers, on-chain transaction monitoring, and real-time balance syncing.
• Perform technical assessments and smart contract audits for third-party integrations to ensure operational security and platform integrity.
• Collaborate with engineering and product teams to transform raw blockchain data into meaningful features, dashboards, or automated alerts within the app ecosystem.
• Monitor and maintain blockchain infrastructure, including RPC endpoints, data feeds, and API reliability — ensuring uptime and responsiveness across chains.
• Contribute to the long-term scalability and security architecture for all blockchain-related components of the CryptoXpress platform.

Qualifications

• Proven experience as a Blockchain Engineer or similar role.
• Strong proficiency with Web3.js, Ethers.js, and blockchain data extraction techniques.
• Experience building blockchain dashboards, wallet explorers, or transaction monitoring tools.
• Familiarity with smart contract standards (ERC-20, ERC-721, etc.) and EVM-based chains.
• Understanding of blockchain security principles and transaction validation.
• Ability to work independently and collaboratively in a fast-paced environment.
• Bachelor’s degree in Computer Science, Engineering, or a related field (preferred but not mandatory).
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How to Apply:

Interested candidates must complete the application form at 

https://forms.gle/aRj3iqyS5MdhWmFH9

Join us and become a driving force behind CryptoXpress’s content strategy, helping to shape the conversation in the cryptocurrency space! 🚀

💡Pro Tip: Tips for Application Success

• Show your enthusiasm for crypto, travel, and digital innovation
• Mention any self-learning initiatives or personal crypto experiments
• Be honest about what you don’t know — we value growth mindsets
• Explore CryptoXpress before applying — take 2 minutes to download and try the app so you understand what we’re building

Job Title: Blockchain Developer

Location: Bestech Business Tower (Mohali)

Job Type: Full-time

We are looking for Blockchain Developer with a minimum of 6 months to 1.5 years experience, you will be responsible for designing, developing, and implementing blockchain-based solutions, Dapps, wallet and smart contracts. You will be reposinble for developing and directly dealing with clients.

Job Responsibilities:

·        Create/Design and implement reliable blockchain architectures and protocols for projects, prioritizing scalability, security, and high performance.

·        Design, implement, and deploy smart contracts across diverse blockchain platforms (e.g., Ethereum, Solana). Perform comprehensive audits to guarantee security and optimal functionality.

·        Develop and sustain decentralized applications (DApps) by seamlessly integrating blockchain technology with both front-end and back-end systems.

·        Assist in shaping the technical strategy and roadmap for blockchain initiatives. Keep up-to-date with the latest advancements in blockchain technologies and industry developments.

·        Proficiency in DeFi, NFTs, and other emerging blockchain applications.

·        Work closely with clients to identify their requirements, objectives, and challenges, delivering scalable and dependable blockchain solutions.

Skills Required:

·        Expertise in programming languages - Solidity, Python, Javascript, Rust and React.

·        Expertise in DApp development frameworks - Web3.js, ethers.js

·        Familiarity with platforms such as Ethereum, Solana, Hyperledger, Binance Smart Chain, or Polygon.

·        Ability to integrate blockchain platforms with third-party systems using RESTful or GraphQL APIs.

Why Join Us?:

• Competitive salary & commission.
• Growth opportunities and a dynamic work environment.
• Comprehensive benefits.
• Decent hike on Current Salary
• Festival Celebrations

Responsibilities:

• Collaborate with R&D teams and incorporate blockchain into the development and design of solutions that employ cross-asset frameworks and concepts
• Leadership abilities in order to provide the team with the correct direction to ensure that the correct solution is implemented with tremendous success.
• Build performance indicators to assess the performance of the Blockchain.
• Preparation of a risk and failure analysis and risk prevention plan.
• Train and advise technical employees on Blockchain tools and frameworks, Blockchain principles, and so forth.

Required Skills:

• Worked on new technologies and develop performance standards for appraising any new solutions.
• Extensive knowledge of blockchain architectural concepts and the development of storage solutions.
• He shall have a solid understanding of Blockchain foundations, consensus algorithms, and smart contracts 
• Excellent knowledge of blockchain frameworks, for example, Hyperledger Fabric, R3 Corda, and Ethereum
• Good command over the several consensus algorithms used for the Bitcoin Blockchain, Ethereum, Byzantine fault-tolerant algorithms
• Strong understanding of cryptography, in order to provide greater security and immutability to the system

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 . 

Desired Candidate Profile

Responsibilities:-

Ø  Research, design, develop, and test blockchain technologies.

Ø  Brainstorm and help evaluate applications for new tools and technologies as they continually evolve.

Ø  Maintain and extend current client- and server-side applications responsible for integration and business logic.

Ø  Be involved in the global blockchain community—work on implementing and integrating the latest improvement proposals.

Ø  Document new solutions as well as maintaining that of existing ones.

Skills:-

Ø  Strong  software development background.

Ø  Experience working with large codebases.

Ø  Experience working with open-source projects.

Ø  Proficiency in one of the following languages: C++, Java, JavaScript ( Depending on the project ).

Ø  Strong  knowledge of common algorithms and data structures.

Ø  Familiarity with basic  cryptography.

Ø  Familiarity with P2P networks.

Ø  Strong knowledge of bitcoin-like blockchains.

Ø  Strong knowledge of concurrency and writing efficient and safe multithreaded code.

Ø  Strong knowledge of STL, C++11 ( In the case of a blockchain-based on C++ ).

Ø  Proficiency in the Qt Widgets module ( Applies to projects where a GUI wallet application is needed ).

We are a Quantitative Trading firm building proprietary trading products and infrastructure for crypto markets (both DeFi and CeFi). We are focusing heavily on building up our DeFi capabilities and are looking for a hungry DeFi native engineer to help us conceptualize and build our DeFi strategies and infrastructure.

We are a high-output research team of 5 from a variety of backgrounds, spanning from Machine Learning and System Engineering, all the way to fintech and business.

We build products for both internal and external use to uncover alpha opportunities in different areas of crypto markets, including trading both on centralized and decentralized exchanges (DeFi) and building systems to streamline order execution, gather and digest complex timeseries data streams.

We are looking for a DeFi Software Engineer who has a deep understanding of blockchain and is curious about algorithmic trading. You should be excited about making sense of large quantities of data, and decision modelling on time series, real-time data.

Responsibilities

• Designing, building and testing smart contracts and related infrastructure
• Researching new DeFi protocols and its connectors and building on them
• Building real-time monitoring tools and working with our team on latency-sensitive operations
• Ethereum Node Infrastructure setup and maintenance
• Work with the team on devising new trading strategies and uncovering opportunities

Qualifications

• Deep technical and practical understanding of DeFi protocols and DevOps practices for interfacing with them (both Ethereum and any other relevant one) - Must have extensive knowledge of Solidity, smart contract development (web3js or ethersjs) and testing.
• Knowledge of Javascript (knowledge of Golang/Python programming is nice to have).
• Must be comfortable working with either hardhat or truffle.
• Comfortable working in a dynamic, research-oriented team with several ongoing concurrent projects
• You look forward to working with an interdisciplinary team that longs to find solutions together.
• Knowledge of trading isn't required but interest in the field is paramount. If you are a self-taught wiz who has tried its hands at DeFi trading and AMM, even better!

The number of years of experience does not matter as long as you have built complex projects from scratch, a burning desire to learn more, constantly improve yourself and solving tricky problems on a daily basis. We're a small team so you can assure yourself that whatever you contribute - in terms of an engineer, or otherwise - is always heard and discussed.

Benefits

• Competitive salary and performance-based bonuses
• A young startup work environment, where your initiatives and ideas count and are rewarded
• A unique open research environment, where everybody contributes and sees the full spectrum of our work, from inception to production
• The chance to shape our firm's legacy and exchange knowledge with the team on every part of what we do.

The role location is preferably Hyderabad with to be able to brainstorm in person with the R&D team, but remote in India is also possible.
Please share github profiles and details of previous projects worked on (both commercial and personal).