
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

About NetObjex
About
If you dare to dream big for yourselves, put your ass on fire, work in chaos, with limited resources, being a self doer, able to innovate, research and patent your work, and lead others! if that’s the material you are, then NetObjex is the right place for you.
NetObjex provides a Digital Twin Intelligent Automation Platform that enables business solutions for real-time tracking, tracing, and monitoring of digital assets by leveraging the continuum of IoT (Internet of Things), AI (Artificial Intelligence), and Blockchain technologies.
We are one of the few startups who’s got global recognitions in several events right from 2017 and the saga continues. We are funded by a New York-based venture fund and with advisors who worked with top-notch companies.”
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As a Quantitative R&D Engineer, you’ll join the team responsible for designing, validating, and scaling trading strategies that interact directly with crypto markets.
You’ll work at the intersection of statistics, code, and markets — exploring data, prototyping logic, and building tools that convert ideas into capital allocation engines.
🔍 What You’ll Work On
- Analyze on-chain and market data to identify inefficiencies and behavioural patterns.
- Develop and prototype systematic trading strategies using statistical and ML-based techniques.
- Contribute to signal research, backtesting infrastructure, and strategy evaluation frameworks.
- Monitor and interpret DeFi protocol mechanics (AMMs, perps, lending markets) for alpha generation.
- Collaborate with engineers to turn research into production-grade, automated trading systems.
- Explore MEV, cross-chain arbitrage, and predictive modelling for on-chain behaviour.
✅ Who You Are
- You’re curious, analytical, and eager to work where code meets markets.
- You enjoy designing systems that act autonomously and uncover edge in complex, noisy data.
- You’re comfortable working in an experimental, high-ownership environment.
Ideal Traits
- Proficiency in Python and experience working with data (Pandas, NumPy, etc.)
- Understanding of probability, statistics, or ML concepts.
- Strong interest in markets, trading, or algorithmic systems.
- Self-driven and comfortable with ambiguity, iteration, and fast learning cycles.
📚 Bonus Points For
- Experience with backtesting, feature engineering, or strategy evaluation.
- Familiarity with crypto primitives (AMMs, perps, mempools, MEV, etc.)
- Projects or research involving trading bots, alpha signals, or data modelling.
- Use of on-chain analytics tools (Dune, The Graph, Nansen, etc.)
- Participation in hackathons, quant competitions, or open-source work.
🎁 What You’ll Gain
- Work on live systems that deploy real capital in 24/7 crypto markets.
- Access to proprietary infrastructure, backtesting tools, and strategy libraries.
- Mentorship from experienced quants, traders, and DeFi engineers.
- Freedom to explore, test, and scale your ideas into real-world performance.
- A high-trust, fast-moving team focused on pushing boundaries.
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
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
Rejolut is among the fastest-growing and award winning Tech companies working on leading technologies namely Blockchain, Machine Learning & Artificial Intelligence, Complex mobile & Web Apps, IoT, etc.Rejolut is a venture-backed company with clients in over several countries namely Malaysia Airlines,gba global,my-earth,biomes, Dlg-hub,etc.
We are looking for Tech geeks having hands-on experience and in love with building scalable, distributed and large web/mobile products and tech solutions. He/She must be an excellent problem solver with passion to self-learn and implement web technologies (frontend + backend). He/She would be responsible for the architecture design, code review, and technology build and deployment activities of the product.
website: https://rejolut.com/" target="_blank">https://rejolut.com/
Job Description
1. Good knowledge of Rust & Solidity
2. Should have a deep understanding & knowledge of blockchain architecture & use cases.
3. Experience in writing smart contracts for large-scale production blockchain applications.
4. Should have good analytical & problem-solving skills.
5. Should have ability to design database and back-end development to communicate with blockchain.
6. Candidates with research aptitude will be preferred.
7. Experience in cryptocurrencies would be preferred
8. Must have a minimum 2+ years of experience.
Benefits :
> Health Insurance
> Work from Home
> Fast growth and more visibility into the company
> Experience to work on the latest technology
> Competitive Learning Environment with supportive co-workers
> Employee friendly HR Policies
> Paid leaves up to certain limits
> Competitive salaries & Bonuses
> Liberal working atmosphere
> Get mentored by the best in the industry
Work Schedule:
Day Shift/Flexible working hours
Monday to Friday
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
- A good grasp of blockchain fundamentals, various consensus algorithms, and detailed knowledge of at least one major blockchain.
- Previous work (demonstrable) in blockchain technology, web3, or protocol development
- In-depth understanding of Number Theory and Cryptography. Knowledge of Cryptographic Algorithms and zero-knowledge proofs are highly preferred.
- Superior mathematics and problem-solving skills, excellent pattern recognition, passion for solving puzzles.
- 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
- Grounded research skills and an ability to absorb documentation quickly
- Strong background in Computer Science. Knowledgeable in Algorithms and Data Structures.
Roles and Responsibilities
- 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).
- Write go-lang based networking relayers that enable communication between blockchains and zk-provers.
- Maintain relayer and zk-prover infrastructure (cloud machine and codebase)
- Write kickass documentation.
Location: Delhi NCR, India | Remote
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
Responsibilities:
- Quickly test & evaluate the hyperledger Besu vs GoQuorum to arrive at the best platform which fits our use-case
- Focus on core-blockchain infrastructure as viewed through the privacy aspects, scalability & deployment challenges in the real world
- Designing, coding, testing as well as deployment, documentation & support
- Solve interesting technical & business challenges
- Collaborate with our mobile/web team to integrate & promote best practices
- 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

