
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

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
Company video


Photos
Connect with the team
Similar jobs

Who we are
CoinCROWD is building the future of crypto spending with CROWD Wallet, a secure, user- friendly wallet designed for seamless cryptocurrency transactions in the real world. As the crypto landscape continues to evolve, CoinCROWD is at the forefront, enabling everyday consumers to use digital currencies like never before.
We’re not just another blockchain startup—we’re a team of innovators, dreamers, and tech geeks who believe in making crypto fun, easy, and accessible to everyone. If you love solving complex problems and cracking blockchain puzzles while sharing memes with your team, you’ll fit right in!
What you’ll be doing
As a key member of our engineering team, you will be responsible for designing, developing, and maintaining robust, scalable, and high-performance backend systems that support CoinCrowd’s
innovative products.
You will be responsible for...
• Designing and implementing blockchain-based applications using QuickNode, Web3Auth, and Python or Node.js.
• Developing and maintaining smart contracts and decentralized applications (dApps) with a focus on security and scalability.
• Integrating blockchain solutions with CROWD Wallet and other financial systems.
• Collaborating with frontend developers, product managers, and other stakeholders to deliver seamless crypto transactions.
• Ensuring high availability and performance of blockchain infrastructure.
• Managing on-chain and off-chain data synchronization.
• Researching and implementing emerging blockchain technologies to improve CoinCROWD’s ecosystem.
• Troubleshooting and resolving blockchain-related issues in a timely manner.
• Ensuring compliance with blockchain security best practices and industry regulations.
• Contributing to architectural decisions and best practices for blockchain development.
What we need from you
We're looking for dynamic, self-motivated individuals who are excited about shaping the future of crypto spending;
• This will be a Full-time role.
• May require occasional travel for conferences or team meetups (Yes, we love those!).
• Bonus points if you can beat our CTO in a game of chess or share an awesome crypto meme!
• Location - WFH initially
What skills & experience you’ll bring to us
• 3 to 10 years of experience in software development, with at least 3+ years in blockchain development.
• Strong knowledge of QuickNode and Web3Auth for blockchain infrastructure and authentication.
• Proficiency in Python or Node.js for backend development.
• Experience in developing, deploying, and auditing smart contracts (Solidity, Rust, orequivalent).
• Hands-on experience with Ethereum, Polygon, or other EVM-compatible blockchains.
• Familiarity with DeFi protocols, NFT standards (ERC-721, ERC-1155), and Web3.js/ Ethers.js.
• Understanding of blockchain security best practices and cryptographic principles.
• Experience working with RESTful APIs, GraphQL, and microservices architecture.
• Strong problem-solving skills and ability to work in a fast-paced startup environment.
• Excellent communication skills and ability to collaborate effectively with cross-functional teams.

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.


We are looking for a Blockchain Developer with a focus on scaling best
practices, reducing engineer toil, and ensuring reliability and stability of the NST Blockchain Platform. This engineer will also work with all engineers to understand pain points and find a balance in the “now” vs the “future”, while also proposing foundational Blockchain. This individual will need to take into consideration performance, reliability, stability, and developer happiness to ensure that we are providing a world-class community-building experience for our internal team, external contributors, creators, and users.
Priorities can change in a fast-paced environment like ours, so this role
includes, but is not limited to the following:
1. At least 3+ years of work experience in blockchain related projects
(preferably enterprise blockchain)
2. Good knowledge in Hyperledger Fabric related projects.
3. Knowledge of Data Structures is preferred.
4. Good with either one of the programming languages: JavaScript or Golang
(preferably Golang)
5. Experience working with some DevOps tools like docker, docker-compose,
ansible. (Knowledge of Kubernetes is even better)
6. Experience working with both SQL & NoSQL Databases, DB Migration,
Disaster Recovery.
7. Should be able to manage a small team, in terms of work management,
coding sessions, code review.
8. Good communications skills.
9. Additional certification in either Hyperledger or Kubernetes is preferred.
We are looking for someone to join our growing team, you will be involved using Rust. Additionally, you will be building tools for our blockchain users such as RESTful API.Debugging/fixing issues within our codebase.
The ideal candidate will be responsible for conceptualizing and executing clear, quality code to develop the best software. You will test your code, identify errors, and iterate to ensure quality code. You will also support our customers and partners by troubleshooting any of their software issues.
Responsiblities:
Rust (5+ years)
Software Engineering experience, Python, JAVA, REACT etc.
Hands on experience with tooling related to Rust (build systems, package managers, unit testing, CI pipelines)
Ability to develop software, implement mission-critical features, and navigate through a large codebase
Experience with code review process and ability to conduct them
Strong ability work in a team environment
Fluency in Git and Github
Ability to follow Agile development process
Attention to detail and ability to producing production-level code
Active approach to work, taking initiative to define and complete tasks
Critical Thinking and Problem Solving skills, ability to work independently
Highly detail-oriented mindset and willingness to learn
Ability to communicate in English (spoken & written)
Understanding compilers and virtual machines
Basic understanding of blockchains and Ethereum
Knowledge of Solana and/or Cardano
Detect and troubleshoot software issues
Write clear quality code for software and applications and perform test reviews
Develop, implement, and test APIs
Provide input on software development projects
Qualifications
- Comfort using programming languages and relational databases
- Strong debugging and troubleshooting skills

Work at Arcana
Arcana is The Storage Layer for Ethereum with a Privacy Stack for developers to build secure and privacy preserving apps. Users care about privacy now more than ever before and it is becoming a first-class citizen in the modern development stack. Arcana makes it easier for apps to be privacy-focused out of the box.
With Arcana’s privacy stack, developers give control of data back to their users. They can easily integrate our SDK with their apps and use our modular feature blocks for Authentication, Identity Management, Encryption, Access Control, and Decentralized Storage. All of which are secured by and verifiable on the blockchain.
Visit http://www.arcana.network/">www.arcana.network to learn more about us, our backers, and our offerings
Role Description
Arcana is stack of services to help developers build more secure and privacy preserving apps.
We are looking to onboard a lead for our blockchain engineering team. At Arcana we are building our own sovereign EVM compatible chain with its own set of validators. Security, Scalability and Interoperability are the primary goals of the blockchain and we're looking to put together some of the best minds to achieve this. This is a full-time role and completely remote friendly.
Requirements
- Experience in managing a team of engineers for at least 2+ years.
- Must have significant experience with Geth (Go Ethereum) or equivalent blockchain nodes and p2p
- Must be proficient with Golang
- Deep understanding of Blockchain, Solidity, Assembly, and the EVM
- Experience in standard software practices including clean code, unit tests and CI/CD
- Knowledge of Rust, Javascript, Typescript or Node.js is a plus
- Active member of the dev community will be a plus (e.g. experience contributing to OSS or EIPs)
- Experience in leading and communicating with remote teams
Skillset: strong knowledge of NFT's
Exp: 6+ Years
looking for Freelancer
At Olegacy, we build applications connecting people to Web3. Our office is in Bengaluru and Dubai. We are expanding to our Dubai office and would love to invite all individuals who are passionate about the blockchain space to apply. We are currently seeking a Blockchain Engineer to help develop and build a decentralized finance application. The ideal candidate is a self-inspired individual who is passionate about blockchain technologies and disrupting current potential financial norm.
Responsibilities
- Work with the team to achieve product update milestones within the set time frames
- Design, develop, program, test, debug and maintain smart contracts code for a decentralized application
- Apply the latest cryptography techniques to protect digital transaction data against cyberattacks and information hacks
- Evaluate scalability, security, performance and gas optimization of the decentralized application
- Collaborate with the team on API design
- Collaborate with the team on planning and implementing frictionless user experiences
Qualifications
- Bachelor's / Master's degree in Computer Science
- Strong proficiency in Cryptography
- Strong proficiency in smart contracts written in Solidity
- Strong proficiency in JavaScript, NODE.js and C++
- Experience with blockchain technology
- Bonus: Understanding of the intricacies of iOS and Android
- Bonus: Experience developing NFTs on Ethereum
Soft Skills
- Team Player
- Strong English language communication skills
- Self-starter
- Enjoys working in a fast-paced start-up culture
- Growth mindset
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!
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

