IT Consultant

CoinCROWD

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. 

• 0 to 3 years of experience (or equivalent understanding of software engineering)
• Familiar with Javascript/Typescript and React.js
• Familiar with one backend language (Node, Go, Java, Python) and one relational database (any SQL)
• Willingness and interest in learning new tech/processes (Next.js, Angular, IaaS, etc.)

Responsibilities

• Design and develop REST-based web services utilizing Java micro services web frameworks (Spring Boot)
• Apply design principles and patterns in creating enterprise level solutions, as needed
• Perform web services tuning and performance testing
• Implement unit tests as needed
• Support front-end developers in leveraging web services
• Automate/script common developer tasks, continually optimize personal and team workflows
• Infrastructure setup and configuration
• Engage in code review and feedback process
• Take a feature from inception to completion independently across the stack
• Collaborate with teammates on proposed UX/UI and provide feedback as needed
• Participate in and support the entire SDLC processes

Requirements

• Spring Boot, Spring Security, Spring JPA & Hibernate
• Relational data modelling concepts and experience in PostgreSQL, MySQL, or similar
• Adopted opinionated RESTful web services design patterns
• Microservices-based application architecture
• Application containerization technologies, including Docker, Kubernetes, and cloud-vendor implementations (AWS, Azure, other)
• Other modern technologies relevant to the technology stack defined here
• Javascript ES6 or later
• React
• Git

Senior Full Stack Developer (Ruby on Rails, ReactJS) - Mirafra Technologies

We are looking for a highly skilled computer programmer who is comfortable with both front and back end programming. Full stack developers are responsible for developing and designing front end web architecture, ensuring the responsiveness of applications, and working alongside graphic designers for web design features, among other duties.

Full stack developers will be required to see out a project from conception to final product, requiring good organizational skills and attention to detail. They are expected to have experience in building web and API based application platforms

Educational Qualification :

            B.E. / B.Tech / from top tier IITs/NITs with at least 4-6 years of experience in full stack  development for Web Applications

Overview :

            Opportunity to work as a Software developer for a content based Progressive Web App in the ed-tech industry. This platform enables creation and consumption of stories in multiple languages with the use of technology to scale creation as well as providing users with content suggestions based on their reading preferences. The project entails development of new features and deployment using a CI/CD model based on requirements from the product team.

The responsibilities would include:

• Developing front end website architecture.
• Designing user interactions on web pages.
• Ensuring cross-platform optimization for mobile phones.
• Ensuring responsiveness of applications.
• Working alongside graphic designers for web design features.
• Seeing through a project from conception to finished product.
• Development of new features
• Debugging issues with existing features
• Monitoring application health
• Proactive approach to upgrade technology/plugins, modify architecture etc. to ensure reduction in issues and improvement in platform performance
• Hotfixes and support for L3 tickets raised from end users with highest priority
• Mentoring other members of the team in new and evolving technology tools / paradigms

Must have:

• Proficiency with fundamental front-end languages such as HTML, CSS, and JavaScript.
• Familiarity with JavaScript frameworks such as Angular JS, React, and Amber.
• Strong proficiency in JavaScript, object model, DOM manipulation and event handlers, data structures, algorithms, JSX, and Babel
• Complete understanding of ReactJS and its main fundamentals like JSX, Virtual DOM, component lifecycle, etc.
• Preceding experience with ReactJS workflows like Redux, Create React App, data structure libraries
• Strong understanding of Javascript, ReactJS, HTML, CSS, Ruby and Ruby on Rails
• Strong understanding of scalable, modular, open and robust application / database architecture.
• Strong analytical, problem solving skills for ambiguous high level business / technical issues
• Familiarity with concepts of MVC, ORM, and RESTful
• Understanding of fundamental design principles behind a scalable application
• Able to create database schemas that represent and support business processes
• Hands on Experience with relational databases Postgresql and MySQL
• Solid understanding of object-oriented programming
• Proficient in writing unit and functional tests with RSpec, Capybara
• Familiarity with Couchbase and ElasticSearch (NoSQL DB)
• Able to implement automated testing platforms and unit tests with RSpec
• Proficient understanding of code versioning tools (e.g. Git)
• Familiarity with development aiding tools (such as Bower, Bundler, Rake, etc)
• Familiarity with continuous integration/continuous development (CI/CD) tools and methodologies
• Proficient in verbal and written communication.
• Experience in debugging system performance issues and creating long term solutions for the same would be an added benefit.

Good to have :

• Experience with Cloud services, web servers, load balancers, auto scaling of architecture would be preferred

Professional Requirements:

• 2-8 Years professional development experience.
• Bachelor’s and/or Master’s degree, preferably in CS, or equivalent experience.
• Good understanding of data structures and algorithms.
• Good understanding of high level and low-level design of distributed systems.
• Experience coding in any one of the following Java or Nodejs.
• Experience building highly available distributed systems on cloud infrastructure will be plus.
• Exposure to architectural pattern of a large, high-scale web application.

Requirement/responsibilities: To take a project from scoping requirements through launch of the project. Ownership of product/feature end-to-end for all phases from the development to the production. Ensuring the developed features are scalable and highly available with no quality concerns. Work closely with senior engineers for refining the and implementation. Management and execution against project plans and delivery commitments. Participate in design and code reviews.

•  Worked on Angular 4 and above.

•  Develop, test, and deploy fast and scalable web apps
•  Designing and maintenance of fully functional large relational and
• non-relational databases
•  Server management and cloud-based infrastructure
•  Identification of application issues when deploying the apps
• App deployment on the cloud along with solving debugging issues
•  Coding architecture for frontend and backend
•  Collaboration with IT team, researchers, designers for designing robust apps and
• encouraging business goals
•  Creating features in apps that have a mobile responsive design
•  Testing applications and fixing bugs, along with security and data protection features
•  Establish code architecture decisions for supporting scalability and good features
•  Makes use of popular front-end frameworks like Bootstrap, LESS, etc and
• design UI components
•  Participation with developers for the creation of scalable RESTful APIs.
•  Conducting code reviews of peer developers.MUST HAVE:
•  Worked on Angular 4 and above.

WHAT WE'RE LOOKING FOR

•  Bachelors or master’s in software engineering, Computer Science or other relevant disciplines
•  5+ years experience as a Back-End or Full Stack Developer with hands-on experience working with Python with  3+ years Preferably with AWS Services knowledge (Lambda, API Gateway, CloudWatch, Queues, Topics, etc)
•  Strong Knowledge in Python v3.x Language
•  Experience in REST APIs with JSON
•  Error handling and Logging 
•  Any DB knowledge 
•  Knowledge in Node.js is an added advantage
•  Knowledge in implementing Terraform is a plus
•  Knowledge on Sumo Logic log aggregation is a plus
• Must know how to produce high quality, “Clean” code that is performant, maintainable and secure

• Skills -
  • Core (Must understand and conversant to code on at least two of these technologies)
    • Java 8+/ Spring Boot/Microservices
    • Spark
    • Scala
    • Angular
    • Javascript
    • ElasticSearch
    • Graph Database (Tinkerpop/Janusgraph)
    • MySQL/Oracle
    • AWS/Azure/GCP
  • Secondary
    • Version Control - Jira/Bitbucket/Git
    • Build Tools - Maven/SBT/Gradle
    • Security
    • Agile/Scrum methodology
    • Should be able to create and review designs/documents
    • Must be able to clearly articulate situations, problems and communicate ideas and solutions

• Must understand System Analysis and Design with understanding of Algorithms (implementation in any language is okay)
• Design optimal and performant solutions for product backlog items spanning technologies
• Work with Product Owner/Project Manager and UX lead for providing LoE estimates for Jira backlog items
• Lead and own delivery or work items (for self and team)
• 80% hands-on work items (self), 20% team responsibility
• Must be willing to learn new technologies, processes, business functions, (we measure this by OKR’s)

Qualifications and Skills