Blockchain Developer

Hiring: Hyperledger Fabric Developer

📍 Location: Gurugram

🏢 Work Mode: Onsite

📅 Working Days: Monday to Saturday (6 Days)

🔹 Role Overview

Join our team to build and maintain secure, scalable private blockchain networks. You’ll play a key role in deployments, upgrades, and live network management, ensuring high performance and stability.

🔹 Key Responsibilities

• Develop and maintain chaincode and Fabric network components
• Setup and manage Fabric 1.4 private networks (Peers, Orderers, Channels, MSPs, CAs)
• Support Fabric 2.x lifecycle processes (packaging, approvals, upgrades)
• Handle production environments (monitoring, troubleshooting, performance tuning)
• Add and onboard new peers into live networks with minimal/no downtime
• Collaborate with DevOps for automation, security, and deployments

🔹 Must-Have Skills

• Strong hands-on experience with Hyperledger Fabric 1.4
• Experience in end-to-end deployment of private networks
• Exposure to Fabric 2.x environments
• Experience working in live production setups
• Deep understanding of:
• MSP updates & certificate handling
• Channel configuration & peer onboarding
• Anchor peers & endorsement policies

🔹 Good-to-Have

• Experience with Docker, Kubernetes, Helm, CI/CD pipelines
• Knowledge of Fabric CA, TLS, and network security
• Strong debugging skills across chaincode and network logs

🔹 Preferred Skills

• Proficiency in Go (Golang) for chaincode
• Linux, scripting, and Git

Designation - Blockchain developers

Work Mode :- Remote

Qualifications and Experience:

• The Blockchain developer will be responsible for designing, developing and implementing blockchain solutions.
• Candidates must be from Bachelor of Engineering Background.Freshers do not apply
• Minimum 3-5 years of hands on Experience in Blockchain,solidity,RUST,IDO and Token launches is mandatory.
• We are looking Candidates should who can join us immediately or 15 days

Job Position - BlockChain Developer

Experience - 4+ Years

Job Location - Bangalore

Responsibilities:

• Search, 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 the existing ones.

Requirements:

• Total 4+ Years of experience in Backend Development and minimum 1+ years of experience in Ethereum, Blockchain

• Knowledge of any one of the programming languages: NodeJS, Java, GoLang, C, C++, PHP

• Basic understanding of blockchain technology: Bitcoin, Smart Contracts, Solidity, Cryptography

• Knowledge of private blockchains such as Hyper Ledger, and Corda is a plus

• Basic understanding of HTML, CSS, JS, Bootstrap, and knowledge of front-end technologies such as Angular/ React/ Vue is a plus.

• Knowledge in databases and database modeling: MySQL, PostgreSQL, MongoDB

• Understanding of Software Development Lifecycle (SDLC)

• Experience using Git for version control

We are looking for a Blockchain Developer who has around 2-3 years of experience, and has past experience with working on blockchain-based systems and scenarios. The ideal candidate would be someone who understands the concepts of Blockchain technology and having working experience on Rust and Solana.

• Desire to work in a startup environment, fun@work culture and able to self-manage.

• In Depth understanding of at-least two blockchain network like Rust, Substrate, Polkadot Solana, Hedera Hashgraph, Tezos, BlockApps, Algorand, Corda, Lambda, Cargo etc

• Familiarity with basic cryptography to understand the essentials of blockchain systems.

• Hands on in Rust

• Designing and writing well-structured APIs in Node.js and MongoDb to connect to Blockchain infrastructure

• Staying up to date with new developments and news in integrated chains.

• Past experience with Wallets or Crypto Exchanges would be a major plus.

• Experience with third-party libraries and APIs.

• Experience working in an agile development process.

• Documenting architecture and guidelines.

• Be proficient in using version control and continuous integration, with tools such as Gitlab, Git and Jenkins.

• Write clear, maintainable and testable code that you are proud of.

• Attend training and education where necessary to up-skill themselves.

• Experience in writing smart contracts for large-scale production blockchain applications.

• Cross-team contribution whenever required.

• Familiarity with basic cryptography.

• Should have a deep understanding of the blockchain and cryptocurrency space and smart contract systems, specifically having a deep understanding of Rust.

Are you passionate in coding, art and blockchain? Do you wish to face challenges ahead, develop and deliver features that will be extraordinary towards users? We are looking for experienced developers (blockchain, frontend, backend) to join our team and start a revolution!

About the role as a full stack engineer at Torum, you will be remotely working alongside our core development team from India, Turkey, Malaysia and other regions in the future. A good mindset of forward planning should be cultivated to better your performance!

You will also get involved in constant discussions with our Lead Developer and Operational team members regarding the ideas, concepts as well as feature specifications to further enhance our platform.

Key Responsibilities & Scope

• Delivering well tested, high quality software
• High scalability and flexibility solutions using micro services
• Work well in teams (bonus points if able to lead)
• Qualifications & experience

Highly Favored Experience

• Experience with Solidity
• Web3 JS experience
• Good software engineering skills, insights, and experience
• Good knowledge of cryptography
• Important: Ability to communicate (orally and verbally) well with the team in English
• Experience in building large-scale apps like Social Media, E-commerce, etc. where performance, scalability, and availability are the top priorities

Qualifications and Experience location GMT+8 or GMT+5:30

• Ability to work remotely or on-site (if Malaysia)
• More than 3 years of experience with writing Solidity smart contract (a) more than 2 years of experience with React JS and Web3 JS OR (b) more than 3 years of experience in Node JS and MongoDB
• Acting as the Senior or Lead position in the team, and built at least one or more commercialized Decentralized Applications (Dapps), such as NFT marketplace, DeFi platform, GameFi or any other relevant applications that solved the industry need
• Passion for best design, developing and coding practices
• Maximizing application performance, uptime, and scalability, maintaining high standards of code quality and thoughtful application design
• Excellent debugging and optimization skills
• Unit/integration testing experience
• Passionate and having good knowledge about Cryptocurrency / DeFi / NFT / GameFi industry is a huge bonus
• Hands-on experience on Layer 0 or 1 or 2 blockchain infrastructure (Preferably EVM-based public chain) is a huge bonus

• Writing and Understand smart contracts using Solidity 
• Write backend APIs using Next JS, Node JS
• Experience is cross chain development, block chain oracles, multi sig is desirable
• Thorough understanding of block chain components.
• Thorugh understanding of IDO process, Swapping protocols, Tokenomics
• Understanding of Docker, Kubernetes , Cloud technologies like AWS , GCP is highly desirable.

About Mastercard

We are the global technology company behind the world’s fastest payments processing network.

We are a vehicle for commerce, a connection to financial systems for the previously excluded, a technology innovation lab, and the home of Priceless.

We ensure every employee has the opportunity to be a part of something bigger and to change lives.

We believe as our company grows, so should you.

We believe in connecting everyone to endless, priceless possibilities.

Overview Services and Data is helping to shape the future of data insights by leveraging billions of anonymized, aggregated transactions in a 10 petabyte date warehouse to help financial institutions, merchants, media, and governments manage their businesses more effectively.

Advanced Analytics is charged with servicing clients by centralizing and optimizing the world class analytical, modeling, software coding, data sourcing, product development, product management, econometrics, and associated delivery capabilities of the MasterCard Advisors organization.

It focuses on creating innovative technology solutions which leverage technology in the data science, artificial intelligence and analytics arenas; on enabling the field with industrialized, repeatable products and on researching and incubating emerging technology to determine how they might apply to our customers and facilitate positive outcomes.

What we are re looking for

• Are you motivated by developing new Analytical skills, leading to insights into issues and developing recommendations that add real value to clients?
• Have you managed the client independently and effectively?
• Do you want to play a key role in driving a world beyond cash?
• Leading the formulation of artificial intelligence and machine learning solution objectives. Working on technical requirements based on user need.
• Responsible for creating the framework of solutions that take data intensive and complex business challenges and provide easily consumed and automated outcomes
• Using unique visualization techniques, condenses large volumes of complex ideas into elegant and simple visual models
• Determine opportunities to exploit new data sources or leverage new outcomes from existing data sources, by applying new models and algorithms to create business value
• Influences a client's strategic decisions by using deep industry expertise and deploying innovative Deep Learning analytics solutions in the operational systems Leadership Skills
• Works closely with clients/internal stakeholders to understand their business needs and design a technical solution
• Proving viability of the solution through mechanisms like proof-of-concepts
• Thought Leadership in AI – Developing compelling audience-specific messages and tools. Capture and share best practices and insights internally and with partners and customers.
• Self-driven, energetic, creative with ability to work in global teams.
• Excellent communication skills and a wide knowledge base, to convince the Stakeholders on application of AI/ML
• Provide technical leadership to the team members in relevant topics on AI/ML
• Adaptable - Takes in stride and constantly attunes to the changing needs of a highly dynamic business
• Curious - our key contributors are always seeking to grow their knowledge, to gain new perspectives, and to find better ways forward by researching and showcasing latest AI tools, techniques and applications
• Tenacious - self-starters who will take ownership of projects and bring them to completion despite difficulties or setbacks
• Consulting and Project Management Experience preferred

Functional and Technical Skills

• Experience in building and implementing AI application in any of the two domains - Fraud, risk, marketing, finance, operations for Banks, Fintech, Ecommerce, merchants or retailers
• Has a deep understanding of business value industry requirements and advanced analytic models (statistical, operations research, computing process)
• Responsible for building applications using artificial intelligence/machine learning technology, applying latest industrial and academic developments, prefer Kaggle hackathon participant
• Expertise in deep learning frameworks for Production Systems like Tensorflow, Keras (for RPD and neural net architecture evaluation), PyTorch and Xgboost, Caffe, Theono
• Proficient in Deep Learning algorithm techniques like Random Forest, GBM, KNN, SVM, Bayesian, Text Mining techniques, Multilayer Perceptron, Neural Networks – Feedforward, CNN, LSTM’s GRU’s.
• Optimization techniques – Activity regularization (L1 and L2), Adam, Adagrad, Adadelta concepts; Cost Functions in Neural Nets – Contrastive Loss, Hinge Loss, Binary Cross entropy, Categorical Cross entropy; developed applications in KRR, NLP, Speech and Image processing
• Expertise in classical Machine Learning algorithms like Logistic Regression, Decision trees, Clustering (K-means, Hierarchical and Self-organizing Maps), TSNE, PCA, Bayesian models, Time Series ARIMA/ARMA, Recommender Systems - Collaborative Filtering, FPMC, FISM, Fossil etc
• Extensive experience in statistical tools and programming environments like Python, R, SAS, SQL
• Experience with BIG DATA platforms - Hadoop, Hive, Spark, GPU Clusters for deep learning

Qualifications

• Minimum Graduate degree in Mathematics/Computer Science/Engineering