
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.
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Desire to work in a startup environment, fun@work culture and able to self-manage.
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In Depth understanding of at-least two blockchain network like Rust, Substrate, Polkadot Solana, Hedera Hashgraph, Tezos, BlockApps, Algorand, Corda, Lambda, Cargo etc
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Familiarity with basic cryptography to understand the essentials of blockchain systems.
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Hands on in Rust
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Designing and writing well-structured APIs in Node.js and MongoDb to connect to Blockchain infrastructure
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Staying up to date with new developments and news in integrated chains.
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Past experience with Wallets or Crypto Exchanges would be a major plus.
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Experience with third-party libraries and APIs.
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Experience working in an agile development process.
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Documenting architecture and guidelines.
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Be proficient in using version control and continuous integration, with tools such as Gitlab, Git and Jenkins.
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Write clear, maintainable and testable code that you are proud of.
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Attend training and education where necessary to up-skill themselves.
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Experience in writing smart contracts for large-scale production blockchain applications.
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Cross-team contribution whenever required.
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Familiarity with basic cryptography.
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Should have a deep understanding of the blockchain and cryptocurrency space and smart contract systems, specifically having a deep understanding of Rust.

About Rejolut
About
Rejolut is one of the award winning fastest growing emerging tech company which is working leading technology like Blockchian, ML & AI, Complex mobile & web apps, IoT etc.
We are a team that loves creativity and technology. We create products we are proud of. We fuse innovation with art to achieve Different, Intutive & Quality products.
Our Dogma: We don't make shit.
How we are different
-We are young and dynamic team who are obsessed with solving business problem at scale.
-We are a technology agnostic company who focus more on finding the optimal solution to business problem rather than technology itself.
Why to join us
- We provide huge learning curve. Spending 1.5-2 years with us will put you 3 years ahead in the career.
- We work only on cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, ELM
- There are two technology Co-founder in the company who are pretty much hands-on and have earlier bult the Consumer application which is downloaded millions of time and are in leadership position in companies like Samsung, Purplle, Loylty Rewardz.
- Get mentored by the best in the industry
- Flexible working hours
- Perks best in the industry
- Flat structure, no hierarchy
Culture
- Fast-paced, intellectually stimulating, steep learning, and growth
- Close-knit, hardworking, supportive colleagues
- Challenging work
- Flat organization with no hierarchy
- If you like problem solving, and love latest tehnical innovations, there are very few better places
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Experience: Minimum 5 years in blockchain development
Blockchain Networks: Hyperledger Fabric, Stellar, Solana
Key Skills:
Proficiency in Golang with a minimum of 4 years of experience
Strong understanding of cryptography, resource optimization, and data clustering
Hands-on experience with NoSQL databases (CouchDB, Cassandra, or DynamoDB preferred)
Familiarity with CI/CD tools and processes (Docker, Kubernetes, Jenkins, GIT)
Project Knowledge:
Crypto Exchange platforms
Smart Contract Development
Tokenization and NFT projects
Key Responsibilities:
Design and develop blockchain-based solutions aligned with business needs
Develop and optimize smart contracts and decentralized applications
Collaborate with cross-functional teams to deliver high-quality solutions
Implement and ensure security best practices across blockchain solutions
Analyze and enhance blockchain network performance.
- Proficient in Solidity programming language
- Experience with wallet integrations
- Experience with ethers.js/web3.js
- Experience with Nodejs
- Experience with upgradable contracts, dynamic contracts, and factory contracts
- Design and develop smart contracts and decentralized applications on Ethereum, Polygon and Tron
- Excellent knowledge of various token standards like ERC20, ERC721 and ERC1155
- Write end-to-end unit tests for all smart contracts
Min Exp – 4 years
Location – Dwarka, Delhi
Immediate joiners are preferred
About the company – We are a web development and digital marketing company in Delhi, India. We have been serving our clients globally since 2012. We offer quality assured and revenue driven digital services at affordable rate.
Role summary - We seek an experienced Web3 Developer to join our team and help us build and maintain our Ecosystem based on blockchain. Our platform is built using React for the front end, Node.js, TypeScript, MongoDB for the backend, and Solidity for smart contracts. Someone passionate about blockchain technology and with a strong understanding of the Web3 ecosystem.
Responsibilities:
1. Blockchain Solution Design:
- Collaborate with stakeholders to understand business requirements and identify areas where blockchain technology can add value.
- Design and architect blockchain solutions, including selecting appropriate blockchain platforms, consensus mechanisms, data structures, and smart contract frameworks.
- Develop technical specifications, system architectures, and integration strategies for blockchain-based applications.
- Ensure blockchain solutions align with industry best practices, security standards, and compliance requirements.
2. Blockchain Development:
- Lead the development and implementation of blockchain applications, smart contracts, and decentralized protocols.
- Design and implement APIs and integration points for seamless interaction between blockchain and existing enterprise systems.
- Conduct thorough testing and debugging to ensure blockchain solutions' performance, security, and reliability.
- Collaborate with development teams to define blockchain development coding standards and best practices.
3. Security and Privacy:
- Implement robust security measures, encryption techniques, and access controls to protect blockchain data and transactions.
- Address privacy concerns and design solutions that ensure the confidentiality of sensitive information while maintaining transparency.
- Stay up-to-date with the latest security vulnerabilities and recommend strategies to mitigate risks in blockchain implementations.
4. Scalability and Performance Optimization:
- Optimize blockchain solutions to enhance scalability, transaction throughput, and system performance.
- Evaluate and implement scaling solutions, such as sharding, sidechains, or layer 2 protocols, to address the limitations of blockchain platforms.
- Conduct load testing and performance tuning to identify bottlenecks and optimize resource utilization.
5. Blockchain Governance and Consensus:
- Define governance models and consensus mechanisms suitable for specific use cases and industry requirements.
- Assess and recommend appropriate consensus algorithms, such as Proof of Work (PoW), Proof of Stake (PoS), or Practical Byzantine Fault Tolerance (PBFT), based on the project's needs.
- Establish protocols for transaction validation, block verification, and network participation.
6. Research and Innovation:
- Stay updated with the latest advancements and emerging trends in blockchain technology.
- Conduct research and experimentation to explore the potential of new blockchain platforms, protocols, and tools.
- Evaluate and recommend third-party blockchain solutions, frameworks, and libraries to accelerate development processes.
7. Collaboration and Leadership:
- Collaborate with cross-functional teams, including developers, engineers, product managers, and business stakeholders, to align technical requirements with business goals.
- Provide technical guidance and mentorship to development teams regarding blockchain technologies, best practices, and coding standards.
- Act as a subject matter expert, delivering presentations and training sessions on blockchain concepts and solutions.
Qualifications and Skills:
- Bachelor's or Master's degree in Computer Science, Information Technology, or a related field.
- Extensive experience in blockchain development and architecture, with a deep understanding of blockchain concepts, protocols, and platforms (such as Ethereum, Hyperledger Fabric, Corda, etc.).
- Proficiency in programming languages commonly used in blockchain development, such as Solidity, Go, or Java.
- Strong knowledge of smart contracts, decentralized applications (DApps), and blockchain development frameworks.
- Familiarity with cryptographic principles, encryption algorithms, and security best practices in the context of blockchain.
- Experience with cloud platforms and infrastructure (such as AWS, Azure, or Google Cloud) for deploying and managing blockchain networks.
- Understanding of decentralized storage, identity management, and tokenization concepts.
- Excellent problem-solving and analytical skills, with the ability to architect complex and scalable blockchain solutions.
- Strong communication and leadership skills to collaborate effectively with multidisciplinary teams and drive successful project outcomes.
Mobiloitte is a Premier, Full Service Software Development Company for Blockchain, IoT, Artificial Intelligence, BOTS, Mobile, and Web Development with a special focus on Timeliness, Security, Scale, and Performance. Our teams have worked across the industries and verticals while servicing more than 5000 projects so far. This rich experience with global clientele and varied technology landscape has shaped us into a winning team with a magic sauce of EXPERIENCE-EXUBERANCE-
We have an opening for Blockchain Developer.(Ethereum /Hyperledger)-
Job Title: Blockchain Developer (Ethereum /Hyperledger)
Reports to: Project Manager
Experience: 1-5 Years
Company Name : Mobiloitte Technologies.
Website : http://www.mobiloitte.com/" target="_blank">www.mobiloitte.com
Location: New Delhi
Qualifications: B.E/B.Tech
Roles & Responsibilities:
1. Must have experience with combination of following DLT (Distributed Ledger Technology) related: Hyperledger Fabric, Sawtooth, Iroha, Node.js, Go, Composer, Ethereum, Solidity, Truffle, web3.js, Geth, Corda, NEO
2. Experience with containerization (Docker) and cloud-based computing (AWS, Bluemix, Azure) is a plus
3. Experience in pre-sales activities (proposal, client meetings, presentations)
4. Individual contributor with excellent analytical skills and ability to think out of the box (experience with requirements gathering/engineering are an advantage)
5. Excellent interpersonal and communication skills, including strong presentation skills
Desired Skills:
1. Hyperledger Fabric projects implementation experience is mandatory
2. Must have strong experience in writing chain code using Go Lang
3. Must have strong experience in implementing apps on top of Hyperledger Fabric using Angular or React front-end and NodeJS services
4.Hands on experience on-stellar,parity,R3 Corda,ethereum.
5.Should be hands on Consensus like-PBFT,PoW (Ethash)SCP (Steller Consensus Protocol) etc…
6.Good knowledge on Privacy like- public,private.
7.Must have ability to work collaboratively with a distributed agile team and deliver with high quality
8.Must have strong experience in DevOps using Git, Jenkins, Dockers, Kubernetes
9. Any experience in one of the Cloud platforms AWS or Azure or IBM BlueMix is an advantage
10.Business domain knowledge in Finance will be an added advantage.

As a Blockchain Developer at Cere Network, you will be responsible for designing, implementing, and supporting a distributed blockchain-based network. Your primary responsibility will be analyzing requirements, designing blockchain technology around a certain business model, and the building and launching of a blockchain network.
Responsibilities :
- Research, design, develop, and test cutting edge technologies in blockchain and beyond (real-time event sourcing, automated orchestrations, distributed big data, ML/AI, etc)
- 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
- Develop strong written English communication skills by documenting everything, from design to implementation, to process and beyond.
Skills :
- 2-5 years experience
- Strong software development background
- Experience working with large distributed computing deployments with real users
- 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 cryptography concepts
- Experience with Substrate and Rust
- Familiarity with P2P networks and high throughput and robust services
- Strong knowledge of blockchains/consensus protocol
- Strong knowledge of concurrency and writing efficient and safe multithreaded code
- Nice to have knowledge of STL, C++11
Timeswap Labs is building the first fully decentralized money market protocol within the DeFi ecosystem. We are solving one of the hardest problems in DeFi of building trust less & permissionless money markets without using any external Oracle.
Timeswap uses a proprietary AMM for price discovery of interest rates & collateralization ratio without using an external Oracle. Timeswap enables debt financing for long tail assets just like Uniswap enabled equity financing for long tail assets. Timeswap is backed by founders of a multi-billion-dollar crypto protocol, top tier VC funds from Silicon Valley & Singapore and by prominent Angel Investors in the web 3.0 ecosystem.
Role: Senior Smart Contract Developer (Full Time)
We are hiring a full time Senior Smart Contract developer with demonstrated experience in deploying smart contracts on Ethereum mainnet and other EVM compatible blockchains. The developer will work closely with our Founder and other smart contract engineers in the team.
Must Have:
• Minimum 3-4 yrs full time work experience in developing & deploying smart contracts in a verified Decentralised protocol
• Minimum 3-4 years experience on working with NodeJS
• Verifiable previous experience deploying smart contracts on Ethereum mainnet with code references
• Strong experience with the EVM and writing high-quality, well-tested Solidity code
• Basic understanding of DeFi applications & mechanism design with security first approach
• Familiarity with common smart contract frameworks (e.g. Hardhat / Brownie / OpenZeppelin) and security practises
Good to have:
• Prior experience deploying any DeFi application
• Familiarity with GraphQL
• Familiarity with web3.js / ethers.js / Typescript / ELM / Alchemy or similar RPC Providers
• Familiarity in writing property-based tests for smart contracts
• Developing SDK/Developer utilities
How to Apply:
• Share your CV with previous code references (GitHub)
• Briefly describe your prior experience and how that will help in the aforementioned role .

- Expert with DeFi, NFT and latest Crypto Concepts. Should have working experience on these concepts
- Strong knowledge with Smart Contract best practices
- Experience with React JS & Node JS Required (We prefer MERN Stack). Having TypeScript experience would be an advantage
- If you have understanding of AWS and how setup and deployment of Project elements work, would be an advantage.
- Knowledge of GitHub is must
- Handle the solidity
- Should be able to write smart contracts
- Education: Not specific
- Skills: Exp. In working polkadot & binance smart chains will be an advantage.
Rejolut is one of the award winning fastest growing emerging tech company which is working on leading technology like Blockchian, ML & AI, Complex mobile & web apps, IoT etc.
The ideal candidate will be responsible for developing highly scalable and secure code.
Responsibilities:-
-Able to take the Extreme Ownership of modules/product/projects
-Able to learn & implement new technology/framework/library/networks at God Speed
-Able to come with optimal solution for the business problem
-Can handle calls with the client & customer to know their feedback
-Writing clean code & able to dig into other's code or open source code
-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
Desired Candidate Profile:-
- Setting up and configuring Full node clients for various Blockchains.
- In Depth understanding of atleast two blockchain network like Ethereum, Hedera Hashgraph, Tezos, Hyperledger, BlockApps, Algorand, Corda etc
- Working closely with DevOps to make blockchain infrastructure robust and scalable.
- Designing and writing well-structured APIs in Node.js to connect to Blockchain infrastructure.
- Develop and manage various applications to integrate Blockchain infrastructure into the main product.
- Staying up to date with new developments and news in integrated chains, like forks, main net launches, migration.
- Documenting architecture and guidelines.
- Always being on the lookout to enhance technology, by finding and making new tools, utilities, and libraries.
- Managing and enhancing a cutting edge tech stack, comprising of Node.js, ES2016/17 (Javascript), AWS, MongoDB, SQL
- Cross-team contribution whenever required.
- Familiarity with basic cryptography
- Familiarity with P2P networks
Culture
- Fast-paced, intellectually stimulating, steep learning, and growth
- Close-knit, hardworking, supportive colleagues
- Challenging work
- Flat organization with no hierarchy
- If you like problem solving, and love latest technology, there are very few better places
How we are different
-We are young and dynamic team who are obsessed with solving business problem at scale -We are a technology agnostic company who focus more on finding the optimal solution to business problem rather than technology
Why to join us
-We provide huge learning curve. Spending 1.5-2 years with us will put you 3 years ahead in the career
-We work only on cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, ELM
-There are two technology Co-founder in the company who are pretty much hands-on and have earlier bult the Consumer application which is downloaded millions of time and are in leadership position in copanies like Samsung, Purplle, Loylty Rewardz
-Get mentored by the best in the industry
-Flexible working hours
-Perks best in the industry

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

