Shubham Vishwakarma
Full Stack Developer - Averlon
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Go Programming (Golang)
MongoDB
RustWhat We’re Looking For
Required Skills & Experience
Backend Development (5+ Years of Experience)
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Proficiency in backend programming: Python, Go, Rust, or Java.
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Experience with distributed systems, microservices, and event-driven architectures.
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Strong grasp of software engineering principles, design patterns, and scalable system design.
API Development & Web Services
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Expertise in RESTful API and GraphQL design and development.
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Experience with API security protocols, including OAuth 2.0, JWT, and HMAC authentication.
Blockchain & Web3 Technologies
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Familiarity with blockchain protocols: Ethereum, Hyperledger, Polkadot, Corda.
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Understanding of smart contracts, decentralized applications (dApps), and tokenization frameworks.
Database & Data Transformation
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Strong experience in SQL (PostgreSQL, MySQL) and NoSQL databases (MongoDB, Redis, Cassandra).
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Knowledge of financial data transformation standards (ISO 20022, FIX, Open Banking).
Security & Compliance
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Experience implementing security best practices, including encryption, authentication, and RBAC/IAM-based access control.
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Understanding of regulatory frameworks: AML/KYC, GDPR, SOX, FISMA, HIPAA.
Cloud & DevOps (2+ Years of Experience)
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Hands-on experience with AWS, GCP, or Azure for scalable infrastructure deployment.
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Familiarity with containerization (Docker, Kubernetes) and CI/CD automation (GitHub Actions, Jenkins, Terraform).
Bonus Points For:
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Experience integrating financial APIs (SWIFT, FIX, Open Banking).
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Hands-on smart contract development (Solidity, Rust, Go).
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Contributions to open-source blockchain or fintech projects.
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Experience with real-time event streaming using Kafka, RabbitMQ, or Pub/Sub architectures.
NodeJS (Node.js)MongoDBCoinCROWD
Blockchain Developer, Remote
About CoinCROWD:
CoinCROWD is a cutting-edge platform in the digital finance space, focused on delivering innovative solutions that empower individuals and businesses in the cryptocurrency ecosystem. We are passionate about creating seamless, secure, and scalable solutions to simplify the way people interact with digital currencies. As we continue to grow, we're looking for skilled backend developers to join our dynamic engineering team.
Position Overview:
We are seeking an experienced Blockchain Developer with 3+ years of expertise in node.js/Python to help us build and scale our backend services. 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.
This role will give you the opportunity to work in a fast-paced environment with cutting-edge technologies in the blockchain and cryptocurrency space.
Key Responsibilities:
- Develop and maintain decentralized exchange (DEX) platforms and features, focusing on on-chain data integration.
- Collaborate with a cross-functional team to design and implement features.
- Integrate RPC nodes for blockchain data access and manipulation.
- Create secure, efficient, and scalable blockchain applications using NodeJS and related technologies.
- Write unit and integration tests for blockchain applications to ensure high code quality and reliability.
- Maintain a high level of security best practices when dealing with blockchain data and smart contract interactions.
Required Qualifications:
- Databases: Strong experience with relational databases (PostgreSQL, MySQL) and NoSQL databases (MongoDB, Redis). Proficiency in writing complex SQL queries.
- API Development: Hands-on experience in designing and developing RESTful APIs, including authentication mechanisms (JWT, OAuth, etc.).
- Cloud & DevOps: Familiarity with cloud platforms (AWS, Google Cloud, or Azure) and DevOps tools like Docker, Kubernetes, CI/CD pipelines, and version control (Git).
- In-depth understanding of blockchain protocols and their security implications with at least 3+ years of hands-on experience on Blockchain development
- Experience with Solidity and developing smart contracts.
- Comfortable working independently in a remote environment.
- Ability to effectively communicate in English (written and spoken).
Why CoinCROWD?
Innovative Projects: Work on cutting-edge technology in the fast-growing blockchain and cryptocurrency space.
Collaborative Culture: Join a dynamic, diverse, and collaborative team that values creativity and new ideas. Growth Opportunities: Opportunities to grow in your career as we expand our product offerings and technology stack.
Competitive Compensation: Competitive salary, benefits, and potential for career advancement. Flexible Work: We support a flexible work schedule and the possibility for remote work.
CoinCROWD is an equal-opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees. Initially you will be offered Equity based compensation which is common for a Web3.0 organisation.
NodeJS (Node.js)
Javascript- Bachelor’s degree in Computer Science, Engineering, or related field.
- 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
NodeJS (Node.js)MongoDB
ExpressAt Qiro, we are a dynamic team united by a mission to foster a fair, transparent, and decentralized global lending market. Our focus lies in developing an institutional private credit protocol that seamlessly connects on-chain lenders with off-chain borrowers.
What we’re looking for:
Currently, we are seeking a Senior Backend Engineer to take charge of designing, developing, and maintaining our backend systems. As a pivotal team member, you will play a key role in ensuring the resilience, scalability, and security of our systems. You’ll collaborate closely with cross-functional teams, including smart contract developers, frontend developers, product managers, and designers, to deliver high-quality software solutions that drive our success.
What You'll Do:
- Build and contribute to backend systems supporting Qiro products, interacting with different blockchain networks and external systems.
- Design and develop scalable and resilient client-facing backend APIs, internal services, and scripts for efficient execution of business logic.
- Architect and implement scalable backend solutions capable of handling growing user loads and evolving business requirements.
- Develop and maintain comprehensive test suites, including unit tests, integration tests, and end-to-end tests, to ensure the reliability of backend systems.
- Implement monitoring and debugging tools to proactively identify and resolve issues, ensuring high system availability.
- Collaborate with engineers, QA, and DevOps teams to deliver high-quality code within project timelines.
- Document code, APIs, and technical processes to facilitate knowledge sharing within the team and support the onboarding of new developers.
What Makes a Great Candidate:
- Strong experience in Node.js and Typescript, with proficiency in frameworks like ExpressJS (additional stacks may be used based on project requirements).
- Previous work experience in the blockchain/DeFi space, demonstrating a strong technical understanding of the EVM ecosystem.
- Proven expertise in developing backend REST APIs at scale, handling high request volumes while maintaining low latency and optimal system performance.
- Extensive professional experience in software design and architecture.
- Deep knowledge of testing frameworks and principles.
- Passion for exploring new technologies and the ability to autonomously evaluate them, making suggestions for improvement.
Nice to Have:
- Bachelor’s or Master’s degree in Computer Science.
- Smart contract development experience.
- Understanding of real-world asset tokenization on-chain.
Benefits:
- Competitive salary with regular reviews.
- Flexible remote work.
- Flexible working hours.
- Opportunities for professional growth—your success has no limits when you're driven to excel.
If you are excited about the prospect of contributing to our mission and possess the skills and passion we're looking for, we invite you to be a part of our innovative journey at Qiro. Apply now to join a team where success knows no bounds!
Rust
Git- Writing software that other developers use, including libraries, APIs and wallets.
- Building secure and high-performance networked software that will be used by enterprise customers.
- Solving development challenges and making architectural decisions by understanding the larger picture of the project’s goals.
- Expanding your existing skill-set, and not being afraid to enter uncharted territory.
- Understanding Rust design patterns and writing performant and maintainable code in the language.
- Paying close attention to unit-testing and security.
- Confidently communicating and collaborating with your fellow developers in a remote team environment.
What you need to have:
- 1 year of Rust development experience
- 3+ years of software development experience
- Experience using the Git Version Control System (VCS)
- Experience with unit testing
- Fluent in English, written and spoken
- Team player that thrives in a collaborative environment
- Experience with blockchain and/or Ethereum smart contracts
- Experience in PHP, Laravel, MySQL, or Javascript is a plus
- Experience with GraphQL is a plus
- You are motivated by challenging projects, and you absolutely love developing with Rust.
- You are humble, diligent and patient
JavaGitJob Description:
- Programming and optimizing smart contracts
- Design, research and develop blockchain-based solutions
- Developing decentralized high-performance systems
- Building reliable and fast data storages
- Security audits of third-party and internal solutions
- Establishing policies and procedures that produce secure, high-quality software
- Write and review technical proposals
- Improve engineering standards, tooling, and processes
- Coding with concurrency, efficiency and scalability as primary motive
- Document systems, build runbooks, and automate those processes
- Being hands on by writing, testing, and deploying high-performance networking code
- Rigor on clean code, unit testing, code coverage and best practices
- Developing infrastructure software
Required qualifications:
4+ years experience in JAVA, 1+ year of experience in Blockchain, willingness to learn on the go, ability to write clean code, a strong sense of responsibility.
Tech Stack:
JAVA, git, linux, bash, ability to work with Docker.
Nice to have:
cryptography and system software development experience, understanding of design patterns, understanding of operating systems and networks, ability to design algorithms and mathematical models.
Go Programming (Golang)Git
DockerJob Description
- Architect highly scalable, highly available systems with minimal guidance.
- Developing p2p infrastructure systems to support blockchain interoperability
- Establishing policies and procedures that produce secure, high-quality software
- Write and review technical proposals
- Improve engineering standards, tooling, and processes
- Coding with concurrency, efficiency and scalability as primary motive
- Document systems, build runbooks, and automate those processes
- Being hands on by writing, testing, and deploying high-performance networking code
- Rigor on clean code, unit testing, code coverage and best practices
- Supporting and Leading the team of junior developers
Required qualifications
3+ years of experience in Golang, Strong knowledge of Go programming language, paradigms, constructs, and idioms, willingness to learn on the go, ability to write clean code, a strong sense of responsibility.
Tech Stack
Go, git, linux, bash, ability to work with Docker.
Nice to have
Experience developing in c++, cryptography and system software development experience, understanding of design patterns, understanding of operating systems and networks.
Ruby
Ruby on Rails (ROR)NodeJS (Node.js)
Amazon Web Services (AWS)DockerJob requirements
- A strong engineer with excellent Ruby experience working with Ruby on Rails
- Experience with Node.js
- Experience with SQL/nosql databases(Postgresql, cassandra, MongoDB)
- Experience with REST services and API design
- Experience with building the system for scale
- Experience with version control systems (bitbucket, git etc.)
- Experience working with AWS
- Experience with docker/microservices will be an added advantage
- Knowledge of unit & integration testing
- Knowledge of agile development process, jira
- Strong knowledge of algorithms and Data structures
- Basic understanding of the HTTP protocol
- Demonstrated experience working on application development projects and test-driven development. Experience in writing high quality code
- Knowledge of blockchain technology, smart contracts and cryptocurrency will be an added advantage
- Experience in fintech domain will be another added advantage
- Bachelor’s degree in computer programming, computer science, or a related field.
- Fluency or understanding of specific languages, such as Java, PHP, or Python, and operating systems may be required.
- 3+ years of experience with Ruby On Rails.
- Strong Project & Time Management Skills, along with the ability to apply these skills while working independently, or as part of a team.
Python- 0-3 application development experience in solution building on Blockchain technology.
- Solid understanding of and experience in blockchain / distributed ledger technologies familiarity with platforms, such as Ethereum and Hyperledger.
- Any additional expertise with Python, containerization (Docker) and additional Cloud exposure also a huge plus
- Security Architecture / Cryptography is a plus.
- Any additional expertise with Python, containerization (Docker) and additional Cloud exposure also a huge plus.
- Experience on development tools such as Hyperledger Fabric/Sawtooth,Geth , Composer, Solidity Remix Functional
- Basic understanding of Web applications architecture and protocols.
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Full Stack Developer - Averlon