NodeJS (Node.js)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
Shubham Vishwakarma
Full Stack Developer - Averlon
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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Machine Learning (ML)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.
Job Description : Blockchain Data & ML Engineer
As a Blockchain Data & ML Engineer, you’ll work on ingesting and modelling on-chain behaviour, building scalable data pipelines, and designing systems that support intelligent, autonomous market interaction.
What You’ll Work On
- Build and maintain ETL pipelines for ingesting and processing blockchain data.
- Assist in designing, training, and validating machine learning models for prediction and anomaly detection.
- Evaluate model performance, tune hyperparameters, and document experimental results.
- Develop monitoring tools to track model accuracy, data drift, and system health.
- Collaborate with infrastructure and execution teams to integrate ML components into production systems.
- Design and maintain databases and storage systems to efficiently manage large-scale datasets.
Ideal Traits
- Strong in data structures, algorithms, and core CS fundamentals.
- Proficiency in any programming language
- Familiarity with backend systems, APIs, and database design, along with a basic understanding of machine learning and blockchain fundamentals.
- Curiosity about how blockchain systems and crypto markets work under the hood.
- Self-motivated, eager to experiment and learn in a dynamic environment.
Bonus Points For
- Hands-on experience with pandas, numpy, scikit-learn, or PyTorch.
- Side projects involving automated ML workflows, ETL pipelines, or crypto protocols.
- Participation in hackathons or open-source contributions.
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.
-
Drive high-level decisions about Sperax Protocol architecture, incentive structures and features in collaboration with the Product and Economics Research team
Roles and Responsibilities
- Design/implement secure and reliable smart contracts in Solidity
- Architect, implement, test, and audit protocol upgrades and additions
- Research on multiple blockchain protocols
- Work in a fast-paced team to develop and iterate on new features
Our Requirements/ Qualification and Skills
- 4+ years of development experience and at least 1 year of smart contract developer experience in solidity
- Solid experience in delivering resilient and secure code in Solidity
- Knowledge and experience of the test-driven development
- Very good understanding of the Blockchain technologies, especially Ethereum
- Familiar with the common Smart Contract vulnerabilities
- Solid understanding about Ethereum infrastructure, e.g. like Gnosis, TheGraph
What we offer:
NodeJS (Node.js)- 3-5 years of professional experience in web development with a strong focus on JavaScript stack technologies.
- Proven experience in integrating blockchain technology into web applications, with a deep understanding of blockchain protocols, smart contracts, and decentralized applications (dApps).
- Proficiency in multisignature, multiparty computation and 3rd party Node provider integration
- Experience with public blockchain platforms such as Bitcoin, Ethereum, etc.
- Solid understanding of RESTful APIs and web services.
- Strong problem-solving skills and the ability to troubleshoot complex issues.
- Excellent communication and collaboration skills.
- Ability to thrive in a fast-paced, agile environment and adapt to changing priorities.
- Experience with continuous integration and deployment (CI/CD) pipelines is a plus.
- Experience in setting up Bitcoin core, and Geth node is a plus
Job Description:
We are seeking a skilled and experienced Blockchain Developer to join our dynamic team. As a Blockchain Developer, you will be responsible for designing, implementing, and maintaining blockchain-based applications and solutions. You will collaborate with cross-functional teams to develop innovative blockchain solutions that meet our business requirements. The ideal candidate should have a strong background in blockchain technology, solid programming skills, and a passion for staying updated with the latest trends and developments in the blockchain space.
Responsibilities:
- Design, develop, and implement blockchain solutions based on business requirements.
- Collaborate with cross-functional teams to integrate blockchain technology into existing systems and applications.
- Research and evaluate blockchain frameworks, platforms, and tools to identify the most suitable solutions for our projects.
- Write clean, efficient, and maintainable code for blockchain applications.
- Implement smart contracts and decentralized applications (DApps) using Solidity or other relevant programming languages.
- Ensure the security, scalability, and performance of blockchain solutions.
- Conduct code reviews, testing, and debugging to ensure the quality of deliverables.
- Stay updated with the latest developments, standards, and best practices in blockchain technology.
- Provide technical guidance and support to team members and stakeholders.
- Document technical specifications, architecture, and processes related to blockchain development projects.
Requirements:
- Bachelor's or Master's degree in Computer Science, Engineering, or related field.
- Proven experience as a Blockchain Developer or related role.
- Strong understanding of blockchain technology, cryptocurrencies, and decentralized systems.
- Proficiency in programming languages such as Solidity, JavaScript, Python, or C++.
- Experience with blockchain platforms such as Ethereum, Hyperledger, Corda, or EOS.
- Familiarity with smart contract development and deployment.
- Knowledge of cryptographic principles and security protocols.
- Experience with blockchain development tools, libraries, and frameworks.
- Excellent problem-solving skills and attention to detail.
- Strong communication and teamwork skills.
- Ability to work effectively in a fast-paced environment and manage multiple tasks simultaneously.
- Certification in blockchain development (e.g., Certified Blockchain Developer) is a plus.
Join our team and be part of exciting projects at the forefront of blockchain technology innovation!
RustDesignation - 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
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Java- Work as a Senior Developer or Tech Lead for blockchain-based projects.
- Lead small development teams (3-5 people).
- Work in Agile/Scrum teams.
- Deliver quality solutions to customers by implementing relevant tools/ frameworks/ libraries in Hyperledger.
- Experience in the role of a senior developer/tech lead for blockchain and non-blockchain-based projects. (At least 3 to 5 projects)
- Hands-on experience with Enterprise Blockchain platforms (particularly Hyperledger ONLY) and a good awareness of others, to evaluate and drive the selection of the right platform for the area of implementation.
- Must be well versed with software design and development methodologies for web application development using Java/Java EE/Open Source or Microsoft .NET technologies.
- Mandatory experience in implementing Blockchain applications/projects using MEAN/MERN/Java/Go technology stack, Git, Linux/ Ubuntu/ MacOs/ Windows/ Virtual machines.
- Understanding of smart contracts and experience in developing smart contracts (Node/ JavaScript/ Go/ Java) for at least 2 live projects.
- Knowledge of design considerations, best practices, and standards for designing smart contract-based solutions for decentralized applications.
- Understanding of common tools/ frameworks/ libraries used for quality software development and Blockchain implementation, including those for Hyperledger.
- Knowledge of common architecture patterns for applications (MVC, SPA), cloud, data storage, security, API/Integration, serverless architectures, etc.
- Experience in using (and configuring) CI/CD pipelines (and know-how of DevOps) for blockchain projects.
- Experience in leading small development teams (3-5 people) and should have worked in Agile/Scrum teams.
- Strong verbal and written communication skills; must be comfortable with client and stakeholder interactions.
- Good understanding of IPFS and IPNS protocols.
- Interest to learn and apply learning to design and implement blockchain solutions
- Record of publication of good quality blogs and papers.
- Completion of relevant certifications: Blockchain developer, Java EE / Web Application Developer, Cloud Certification, etc.
About us:
Zemoso Technologies is a Software Product Market Fit Studio that brings silicon valley style rapid prototyping and rapid application builds to Entrepreneurs and Corporate innovation. We offer Innovation as a service and work on ideas from scratch and take it to the Product Market Fit stage using Design Thinking->Lean Execution->Agile Methodology.
We were featured as one of Deloitte Fastest 50 growing tech companies from India thrice (2016, 2018 and 2019). We were also featured in Deloitte Technology Fast 500 Asia Pacific both in 2016 and 2018.
We are located in Hyderabad, India, and Dallas, US. We have recently incorporated another office in Waterloo, Canada.
Our founders have had past successes - founded a decision management company acquired by SAP AG (now part of Hana Big data stack & NetWeaver BPM), early engineering team of Zoho (leading billion $ SaaS player) & some Private Equity experience.
Marquee customers along with some exciting start-ups are part of our clientele.
We are looking for a blockchain developer who will be responsible for designing, implementing, and supporting a distributed blockchain-based network. Primary responsibility will be analyzing requirements, designing blockchain technology around a certain business model, and building and launching a blockchain network.
Essential Skills :
-
Strong software development background
-
Experience working with large codebases
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Solidity, Web3.js, Ethereum, Truffle, Remix, Smart Contracts, Cryptography, Wallets, Blockchain Fundamentals, DeFi & Banking Domain
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Experience working with open-source projects
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Proficiency in one of the following languages: C++, Java, JavaScript
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Strong knowledge of common algorithms and data structures
-
Familiarity with basic cryptography
-
Familiarity with P2P networks
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Strong knowledge of bitcoin-like blockchains / Stable coins
-
Strong knowledge of concurrency and writing efficient and safe multithreaded code
-
Strong knowledge of STL, C++11
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Proficiency in the Qt Widgets module
Responsibilities :
-
Research, 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 of existing ones
Technical Experience :
- Solid understanding and experience in BlockChain Development preferred
- 1+ years of Blockchain application development experience on platforms such as Ethereum, Hyperledger, BigchainDb, and Multi-Chain.
- Experience with NodeJS
- Experience in solution building on Blockchain technology.
- Experience with development tools such as Geth, Hyperledger Fabric/Sawtooth, Composer, Solidity Remix Functional
- Basic understanding of Web application architecture and protocols.
- Any additional expertise with Python, containerization (Docker), and additional Cloud exposure is 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.
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 ).
Follow CutshortShubham Vishwakarma
Full Stack Developer - Averlon