Job description for Blockchain Developer
Responsibilities
• Create architecture features and interfaces by using programming languages
• Research and design blockchain technologies
• Develop and test blockchain technologies – Ethereum and Polkadot
• Protecting the application from bugs and cyber-attacks.
• Working closely with engineers, sales personnel, and other teams in designing and creating innovative solutions.
• Research, create and document existing and new blockchain structures and proposed solutions
• Writing excellent multithreaded codes
• Analysing the needs, resources, and problems of the company and provide necessary
solutions
• Working with open-source projects and codebases
• Keeping up with current blockchain technology and cryptocurrency trends
Requirement skills
• Strong background in software development or engineering with 2-3 years of relevant experience
• Strong conceptual knowledge on DeFi platforms
• Experience with solidity and node.js must
• Knowledge in go or rust
• Strong back-end skills
• Algorithms & data structures
• Basic knowledge of cryptography
• Peer-to-peer or P2P networks
• Qt Widgets module for GUI wallet application.
• Knowledge of current technology like microservice architectures and Docker
containers.
• B.E/B.Tech/BSc in Computer Science, Mathematics or similar field; Master’s degree
is a plus
Salary: Based on industry standards

Similar jobs
Job Title : Lead Blockchain Developer
Experience : 5+ Years
Location : Indore (WFO/Remote)
Employment Type : Contractual
Job Summary :
We’re seeking a Lead Blockchain Developer with 5+ Years of experience in building scalable, decentralized applications. The ideal candidate has expertise in Rust, Golang, Solidity, and Node.js, with hands-on experience in Geth, Docker, and blockchain infrastructure.
Mandatory Skills : Rust, Golang, Solidity, Node.js, Geth, Docker, Ethereum architecture, Smart Contracts, Blockchain Protocols.
Key Responsibilities :
- Design and develop core blockchain protocols and infrastructure.
- Build and deploy secure smart contracts using Solidity.
- Develop tools/services for Ethereum and related networks.
- Work on performant node-level development using Rust and Golang.
- Build APIs and backend services in Node.js.
- Manage containerized environments using Docker.
- Collaborate on system architecture and conduct code reviews.
- Stay updated on blockchain trends and implement best practices.
Key Requirements :
- Strong skills in Rust, Golang, Solidity, Node.js.
- Deep understanding of Ethereum, Geth, and blockchain concepts.
- Experience with Docker, API development, and smart contract security.
- Knowledge of consensus algorithms, cryptography, and performance tuning.
- Familiarity with CI/CD pipelines and DevOps tools is a plus.
Preferred Qualifications :
- Bachelor's/Master’s in CS or related field.
- Prior contributions to open-source or Web3 projects.
About Us
Alfred Capital - Alfred Capital is a next-generation on-chain proprietary quantitative trading technology provider, pioneering fully autonomous algorithmic systems that reshape trading and capital allocation in decentralized finance.
As a sister company of Deqode — a 400+ person blockchain innovation powerhouse — we operate at the cutting edge of quant research, distributed infrastructure, and high-frequency execution.
What We Build
- Alpha Discovery via On‑Chain Intelligence — Developing trading signals using blockchain data, CEX/DEX markets, and protocol mechanics.
- DeFi-Native Execution Agents — Automated systems that execute trades across decentralized platforms.
- ML-Augmented Infrastructure — Machine learning pipelines for real-time prediction, execution heuristics, and anomaly detection.
- High-Throughput Systems — Resilient, low-latency engines that operate 24/7 across EVM and non-EVM chains tuned for high-frequency trading (HFT) and real-time response
- Data-Driven MEV Analysis & Strategy — We analyze mempools, order flow, and validator behaviors to identify and capture MEV opportunities ethically—powering strategies that interact deeply with the mechanics of block production and inclusion.
Evaluation Process
- HR Discussion – A brief conversation to understand your motivation and alignment with the role.
- Initial Technical Interview – A quick round focused on fundamentals and problem-solving approach.
- Take-Home Assignment – Assesses research ability, learning agility, and structured thinking.
- Assignment Presentation – Deep-dive into your solution, design choices, and technical reasoning.
- Final Interview – A concluding round to explore your background, interests, and team fit in depth.
- Optional Interview – In specific cases, an additional round may be scheduled to clarify certain aspects or conduct further assessment before making a final decision.
Quantitative R&D Engineer
As a Quantitative R&D Engineer, you’ll explore data and design logic that becomes live trading strategies. You’ll bridge the gap between raw research and deployed, autonomous capital systems.
What You’ll Work On
- Analyze on-chain and market data to identify inefficiencies and behavioral 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.
Ideal Traits
- Strong in data structures, algorithms, and core CS fundamentals.
- Proficiency in any programming language
- Understanding of probability, statistics, or ML concepts.
- Self-driven and comfortable with ambiguity, iteration, and fast learning cycles.
- Strong interest in markets, trading, or algorithmic systems.
Bonus Points For
- Experience with backtesting or feature engineering.
- Exposure to crypto primitives (AMMs, perps, mempools, etc.)
- Projects involving alpha signals, strategy testing, or DeFi bots.
- Participation in quant contests, hackathons, or open-source work.
What You’ll Gain:
- Cutting-Edge Tech Stack: You'll work on modern infrastructure and stay up to date with the latest trends in technology.
- Idea-Driven Culture: We welcome and encourage fresh ideas. Your input is valued, and you're empowered to make an impact from day one.
- Ownership & Autonomy: You’ll have end-to-end ownership of projects. We trust our team and give them the freedom to make meaningful decisions.
- Impact-Focused: Your work won’t be buried under bureaucracy. You’ll see it go live and make a difference in days, not quarters
What We Value:
- Craftsmanship over shortcuts: We appreciate engineers who take the time to understand the problem deeply and build durable solutions—not just quick fixes.
- Depth over haste: If you're the kind of person who enjoys going one level deeper to really "get" how something works, you'll thrive here.
- Invested mindset: We're looking for people who don't just punch tickets, but care about the long-term success of the systems they build.
- Curiosity with follow-through: We admire those who take the time to explore and validate new ideas, not just skim the surface.
Compensation:
- INR 6 - 12 LPA
- Performance Bonuses: Linked to contribution, delivery, and impact.
Job Summary
We are building a blockchain platform focused on NFT-based records and tokenization of real-world assets (RWA). The frontend is already developed, and we are looking for a skilled Blockchain Backend Engineer to design and implement smart contracts and blockchain services.
This role involves building production-grade, verifiable blockchain systems with a strong focus on NFTs, on-chain verification, and metadata integrity.
Key Responsibilities
Phase 1 – Immediate Scope
- Design and develop NFT minting and issuance (single & batch)
- Implement NFTs linked to real-world records (certificates, titles, permits)
- Enable on-chain public verification (Token ID, Contract Address, Blockchain)
- Design and manage NFT metadata (on-chain / IPFS) with metadata locking
- Implement document hash anchoring for tamper-proof verification
- Develop public verification APIs and QR-based verification flow
- Work with at least one EVM-compatible blockchain (Polygon / Base / Ethereum L2)
Phase 2 – Nice to Have (Future Scope)
- Security token issuance with transfer restrictions
- Whitelisting and compliance-ready token flows
- Investor onboarding and agreement binding
- Distribution handling, investor data room, and referral tracking
Required Skills
- Strong experience in Solidity
- Hands-on development with ERC-721 and/or ERC-1155
- Smart contract development, testing, and deployment
- Experience with EVM blockchains
- Proficiency in Web3 libraries (ethers.js / web3.js)
- Knowledge of IPFS and on-chain data anchoring
- Ability to design secure, scalable, and verifiable blockchain architectures
Good to Have / Bonus Skills
- Experience with Real-World Asset (RWA) tokenization
- Exposure to security tokens or compliance-focused Web3 platforms
- Prior work on enterprise or regulated blockchain solutions
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 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
Why us?
We at Wow Labz are always striving to look for exciting problems to solve. Whether we’re creating new products or helping a small startup extend its reach, we build from our heart. We’re entrepreneurial and we love new ideas. Fun culture with a team that cares about your development and growth.
What are we looking for?
We are looking for a tech enthusiast working primarily on blockchain technology to be part of the core blockchain team at Wow Labz. You would be a part of the Roadmap team that is working on the architecture, design, development and deployment of our decentralized platform.
It comprises a suite of products to create the next generation data economy. It would not just facilitate, but also incentivize the curation, clean-up / classification and verification of the world’s open data. In the process, it would create value for a wide spectrum of token holders including – data owners, data scientists / data workers, publishers, yield farmers / liquidity providers / market makers, data oracles and data buyers.
Your primary responsibilities would be analyzing requirements, designing blockchain technology around a certain business model and launching a blockchain network.
Please be sure to highlight the following in your resume:
- Publicly accessible links to the projects you have built and deployed. These need to be blockchain based. (MANDATORY)
- List of certifications you have completed on blockchain development (optional).
Responsibilities:
- Participate in the full life cycle of blockchain development, from research and analysis to architecture (security, performance, scalability etc), design and execution (coding, testing, benchmarking, deployment).
- Develop (code hands on) protocols, backend APIs and dApps
- Mentor team members, review code artifacts and provide technical guidance, hands on training
- Manage or oversee the DevOps of blockchain projects
- Publicly speak at tech meetups, organise forum sessions or webinars (we’ll create the opportunities).
- Maintain and extend current client- and server-side applications responsible for integration and business logic
- Stay up to date with the developments in the global blockchain community
- Maintain existing protocols and dApps
- Raise the bar in writing clean, well documented code
- Hire talented developers as a part of the Blockchain team
Required Skills & Experience:
- 2+ years of minimum experience in Blockchain development
- Strong software development background
- Strong knowledge of various blockchain technologies like Ethereum, Polkadot, Solidity, Substrate and related tools (Truffle, geth, etc.)
- Experience with Web3.js, RPC, IPC and web socket connections
- Experience with wallets like Metamask, Mist or Polkawallet
- Strong knowledge of ERC20, ERC777, ERC721
- Understanding of tokenomics, token inflation and similar concepts
- Strong experience implementing utility tokens
- Strong knowledge of common algorithms and data structures
- Familiar with popular consensus mechanisms (POW, POS, NPOS, DPOS, POA, etc)
- Familiar with distributed P2P protocols like bit torrent
- Experience with cryptographic libraries (SHA, TripleDES, RSA, HMAC, MD5, Blowfish, etc)
- Experience with Git
- Highly capable of executing in a fast-paced, virtual, changing environment
Any of this is a BIG PLUS:
- Hands on experience with Rust/ Substrate
- Contribution to open source blockchain projects
Persona of the kind of people who would be a culture fit:
- Curious and aware of the latest digital and social media trends
- Strong relationship-building skills
- Exceptional analytical reasoning, problem-solving, and creative thinking skills
- Extremely self-driven and able to execute in a diligent manner
- Get a kick out of leading a solution towards its completion
- Fun to hang out with!

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 ).
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
2.front end work on React js
3.Backend work on Nodejs for api and scheduler part
4.Database Mysql/Mongodb
5.Should be worked on *Cryptocurrency Exchange* Bitcoin,Ethereum,Tron,etc
6.cryptocurrency core node setup
7.who worked on *mlm plan smart contract on tron network like direct referral income, level income and daily return roi* - advantage for










