Blockchain Developer - Cryptography

Job Description :

Position Name : Haskell Developer

Experience : 3+ Years

Location : Gurgaon

Working Days : 6 Days (Monday to Saturday)

Role Description :

This is a full-time on-site role located in Gurugram for a Haskell Developer. The Haskell Developer will be responsible for the development and implementation of efficient, high-performance, and scalable software solutions, and will have the opportunity to work on cutting-edge blockchain-based projects in collaboration with cross-functional teams.

Qualifications :

• 3-5 Years of Haskell experience is required.

• 3-5 Years of Web3 experience is a plus.

• Worked on proven projects of Blockchain.

• Strong proficiency in Haskell, and experience with other functional programming languages.

• Experience with Cryptography, Blockchain, Consensus algorithm and Distributed Systems.

• Proven experience in web frameworks such as Servant, and with databases such as Level DB.

• Strong knowledge of Computer Science fundamentals such as Algorithms, Data Structures, and Complexity Analysis.

• Experience with software development methodologies, such as Agile or Scrum.

• Bachelor's degree or higher in Computer Science, or a related field.

• Excellent communication skills, and ability to work in a collaborative team environment.

• Passion for Blockchain and Cryptocurrency, and willingness to learn and explore new technologies.

Backend Developer (Senior Level) (Will also handle CI/CD Tasks) 

Responsibilities: 

● Design and develop robust backend APIs and services using NestJS and Node.js for a 

scalable web3 domain platform. 

● Collaborate closely with cross-functional teams to deliver user-centric backend solutions. 

● Maintain and optimize secure, scalable, and efficient database structures using 

PostgreSQL. 

● Implement and integrate third-party APIs, including blockchain services, oracles, and 

payment gateways. 

● Write clean, maintainable, and testable code adhering to best practices and coding 

standards. 

● Ensure high performance, reliability, and scalability of backend systems. 

● Participate in architecture design discussions, focusing on scalable and maintainable 

system architectures. 

● Implement caching mechanisms to optimize performance and reduce latency. 

● Set up and maintain monitoring tools to track system health, identify bottlenecks, and 

resolve issues. 

● Conduct thorough testing, including unit, integration, and performance tests, to ensure 

code quality. 

● Ensure secure coding practices and implement robust authentication and authorization 

mechanisms (e.g., OAuth2, JWT). 

● Optimize database queries, indexing, and performance for efficient data storage and 

retrieval. 

● Create and maintain clear and comprehensive technical documentation for APIs, system 

designs, and troubleshooting processes. 

● Stay updated on backend and blockchain trends to incorporate innovative solutions. 

Qualifications: 

● 4-6 years of professional backend development experience. 

● Expertise in Node.js and asynchronous programming concepts. 

● Hands-on experience with NestJS. 

● Proficiency in TypeScript and knowledge of modern backend development patterns. 

● Solid understanding of PostgreSQL or other relational databases. 

● Experience with API development, RESTful services, and database design. 

● Familiarity with deploying and maintaining applications on cloud platforms (AWS, Azure, 

or GCP). 

● Familiarity with maintaining CI/CD pipelines, Docker, and Kubernetes, with a focus on 

resolving errors as needed. 

● Strong communication, collaboration, and problem-solving skills.

Job 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.

Job Description:

• Programming and optimizing rust / wasm based smart contracts
• Design, research and develop blockchain-based solutions
• Developing decentralized high-performance systems
• Building reliable and fast data storages
• Working with virtual machines used by modern blockchains: WebAssembly, EVM, COSMWASM
• Implementing consensus algorithms and other protocols
• 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
• Supporting and Leading the team of junior developers.

Required qualifications:

3+ years experience in developing smart contracts, 2.5+ years of experience in Rust, willingness to learn on the go, ability to write clean code, a strong sense of responsibility.

Tech Stack:

Rust, cargo, 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.

• 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.