Python Backend Engineer

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 Backend Developer with 5+ years of expertise in Python and Django 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:

• Backend Development: Design, develop, and maintain efficient, reusable, and reliable Python-based backend services using the Django framework.
• API Development: Build and maintain RESTful APIs to integrate with various frontend and third-party services, ensuring reliability and scalability.
• Database Management: Work with relational databases (PostgreSQL, MySQL) and NoSQL databases (MongoDB, Redis) to manage and optimize data storage, retrieval, and performance.
• System Architecture: Participate in system design and architecture decisions, ensuring the backend is scalable, maintainable, and secure.
• Performance Optimization: Identify bottlenecks and optimize the backend to handle high-load environments, ensuring high performance and low latency.
• Security & Compliance: Implement security best practices to ensure sensitive user data is protected in compliance with applicable regulations (e.g., GDPR, PCI-DSS).
• Collaborate: Work closely with frontend developers, DevOps engineers, and product teams to ensure seamless integration across systems.
• Code Quality: Write clean, maintainable, and well-tested code with strong adherence to coding standards and best practices.
• Continuous Improvement: Contribute to the continuous improvement of the development process and infrastructure, including adopting new tools, methodologies, and frameworks.

Required Qualifications:

• Experience: Minimum 5 years of professional experience in backend or server-side development, with strong expertise in Python and Django.
• Frameworks & Tools: Solid experience with Django, Django REST Framework (DRF), and other backend- related libraries/tools.
• 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).
• Testing: Experience with unit testing frameworks (e.g., PyTest, Unittest) and TDD/BDD methodologies.
• Security Best Practices: Understanding of security practices such as encryption, authentication, and authorization.
• Problem Solving: Strong analytical and troubleshooting skills with a focus on optimizing performance and scalability.
• Collaboration: Proven ability to work effectively in a cross-functional team environment, communicating technical concepts clearly to both technical and non-technical stakeholders.

Preferred Qualifications:

• Blockchain/Cryptocurrency: Experience with blockchain technologies or cryptocurrency platforms is a plus.
• Microservices Architecture: Familiarity with building microservices or serverless architectures. GraphQL: Experience with GraphQL APIs is a plus.
• Agile/Scrum: Experience working in Agile/Scrum methodologies.

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. 

About the Role-

Thinking big and executing beyond what is expected. The challenges cut across algorithmic problem solving, systems engineering, machine learning and infrastructure at a massive scale.

Reason to Join-

An opportunity for innovators, problem solvers & learners.  Working will be Innovative, empowering, rewarding & fun. Amazing Office, competitive pay along with excellent benefits package.

Requiremets and Responsibilities- (please read carefully before applying)

• The overall experience of 3-6 years in Java/Python Framework and Machine Learning.
• Develop Web Services, REST, XSD, XML technologies, Java, Python, AWS, API.
• Experience on Elastic Search or SOLR or Lucene -Search Engine, Text Mining, Indexing.
• Experience in highly scalable tools like Kafka, Spark, Aerospike, etc.
• Hands on experience in Design, Architecture, Implementation, Performance & Scalability, and Distributed Systems.
• Design, implement, and deploy highly scalable and reliable systems.
• Troubleshoot Solr indexing process and querying engine.
• Bachelors or Masters in Computer Science from Tier 1 Institutions

Job Description

 Responsibilities

• Develop Python Based API’s using FastAPI and Flask frameworks.
• Implementation of workflow using Apache airflow or similar tools.
• Follow and enforce organization defined SDLC within the offshore team.
•  Writing and modifying Docker files for the back end and Front-End Components.
• Integrate CI/CD pipelines for Automation and Code quality checks.
• Writing complex ORM mappings using SQLAlchemy.
• Unit testing using pytest, unittest etc.

Required Skills:

• Strong experience in Python and python-based technologies and frameworks including Flask, Fastapi, SQLAlchemy.
• Experience with AWS services like ECS, S3, ECR, Secrets manager, RDS, ELB, API Gateway, Cloudwatch logs, SNS, SQS, SES, Elastic Cache.
• Strong knowledge of SQL, comfortable working with MySQL and/or PostgreSQL databases, writing raw SQL queries.
• Experience of using ORM frameworks like SQLAlchemy.
• Experience integrating 3rd party APIs.
• Strong understanding of OAuth protocol.
• Experience working with docker and dockerfile.
• Understanding of microservices pattern and architecture.
• Experience with Git, GitFlow, code review process.
• Must enjoy problem solving, have excellent communication skills and be a good team player.

Good To Have:

• Develop Front End Components using VueJS and ReactJS.
• Familiarity with pipeline deployment process, Terraform scripts.
• Familiarity with Sumologic.
• Familiarity with Data warehouse tools like Snowflake.

Responsibilities:

 Develop and maintain high-quality, scalable, and efficient Java codebase for our ad-serving platform.

 Collaborate with cross-functional teams including product managers, designers, and other developers to

understand requirements and translate them into technical solutions.

 Design and implement new features and functionalities in the ad-serving system, focusing on performance

optimization and reliability.

 Troubleshoot and debug complex issues in the ad server environment, providing timely resolutions to ensure

uninterrupted service.

 Conduct code reviews, provide constructive feedback, and enforce coding best practices to maintain code quality

and consistency across the platform.

 Stay updated with emerging technologies and industry trends in ad serving and digital advertising, and integrate

relevant innovations into our platform.

 Work closely with DevOps and infrastructure teams to deploy and maintain the ad-serving platform in a cloud- based environment.

 Collaborate with stakeholders to gather requirements, define technical specifications, and estimate development

efforts for new projects and features.

 Mentor junior developers, sharing knowledge and best practices to foster a culture of continuous learning and

improvement within the development team.

 Participate in on-call rotations and provide support for production issues as needed, ensuring maximum uptime

and reliability of the ad-serving platform.

Job Description:-

• Job Title:- PHP Developers
• :- 2-4 years
• Work Location:- CG Road, Ahmedabad
• Job Type: Full-time
• Day shift:- Monday to Saturday
• Office 10 to 7:30pm

Skills:-

• Strong experience with PHP / WordPress / Laravel. Laravel is a must.
• Strong experience with JavaScript / JQuery
• Experience with HTML / CSS
• Experience with MySQL with profiling and query optimization and Linux understanding is a must.
• In depth knowledge of object-oriented PHP and Laravel 5 PHP Framework
• Strong skills in PHP based framework
• Developers with deep knowledge and experience of building WordPress CMS websites, plugins, theme development & customization.
• Experience with MVC, Entity Framework, Webform, Web API, and business layer and front-end technologies Understanding of front-end technologies such as HTML5, CSS3
• Knowledge in AngularJS, NodeJS, MongoDB preferred.
• Solve complex performance problems and architectural challenges.
• Keep abreast of new trends and best practices in web development.

Ideal candidate must have :

- 2+ years of experience in writing code

- Ability to meet tight deadlines

- Can work independently and be a team contributor

- Must have good knowledge of Node, Python and Scripting languages

- Experience in one or more of RDBMS - PostgreSQL, MySQL or Oracle

- Experience with NoSQL and real-time DB - Firebase/Firestore or MongoDB

- Must be able to write concise and high-quality API

- Must be a quick learner, curious and ambitious  

Job Description:

Skills Required:

• Backend developer with hands-on programming experience in Node Js / Python / Golang
• Expertise in developing REST APIs with any backend framework using above languages.
• Expertise in system design & architecture patterns.
• Experience in building reusable code and libraries for future use.
• Experience in optimising application for maximum speed and scalability.
• Strong fundamentals in computer programming, data structure & algorithms.
• Exposure to AWS services like S3, CloudFront, CloudWatch, lambda & API gateway.
• Good understanding for SQL & NoSQL dB’s, preferably work experience with MongoDB.

Job Description:

We are looking for a Ruby on Rails developer responsible for managing the interchange of data between the server and the users. Your primary focus will be development of all server-side logic, definition and maintenance of the central database, and ensuring high performance and responsiveness to requests from the front-end. You will also be responsible for integrating the front-end elements built by your co-workers into the application. Therefore, a basic understanding of front-end technologies is necessary as well.

Job Responsibilities:

• Design, build, and maintain efficient, reusable, and reliable Ruby code.
• Integration of data storage solutions.
• Integration of user-facing elements developed by front-end developers with server side logic.
• Identify bottlenecks and bugs, and devise solutions to these problems.
• Help maintain code quality, organization and automatization.

Job Requirements:

• Knowledge of Ruby on Rails, Ruby, SQL, JavaScript and Git.
• Experience with Shopify, ReactJs, JQuery CSS, HTML would be plus.
• Strong grasp of TDD and BDD.
• Experience with Heroku or AWS or DigitalOcean.
• A knack for writing clean, readable Ruby code.