MERN Stack Developer (3+ Years)

Role: Python Developer

Location: HYD , BLR,

Experience : 6+ Years

Skills needed:

Python developer experienced 5+ Years in designing, developing, and maintaining scalable applications with a strong focus on API integration. Must demonstrate proficiency in RESTful API consumption, third-party service integration, and troubleshooting API-related issues.

Job Description: Senior Full-Stack Engineer (MERN + Python )

Location: Noida (Onsite)

Experience: 5 to 10 years

We are hiring a Senior Full-Stack Engineer with proven expertise in MERN technologies and Python backend frameworks to deliver scalable, efficient, and maintainable software solutions. You will design and build web applications and microservices, leveraging FastAPI and advanced asynchronous programming techniques to ensure high performance and reliability.

Key Responsibilities:

• Develop and maintain web applications using the MERN stack alongside Python backend microservices.
• Build efficient and scalable APIs with Python frameworks like FastAPI and Flask, utilizing AsyncIO, multithreading, and multiprocessing for optimal performance.
• Lead architecture and technical decisions spanning both MERN frontend and Python microservices backend.
• Collaborate with UX/UI designers to create intuitive and responsive user interfaces.
• Mentor junior developers and conduct code reviews to ensure adherence to best practices.
• Manage and optimize databases such as MongoDB and PostgreSQL for application and microservices needs.
• Deploy, monitor, and maintain applications and microservices on AWS cloud infrastructure (EC2, Lambda, S3, RDS).
• Implement CI/CD pipelines to automate integration and deployment processes.
• Participate in Agile development practices including sprint planning and retrospectives.
• Ensure application scalability, security, and performance across frontend and backend systems.
• Design cloud-native microservices architectures focused on high availability and fault tolerance.

Required Skills and Experience:

• Strong hands-on experience with the MERN stack: MongoDB, Express.js, React.js, Node.js.
• Proven Python backend development expertise with FastAPI and Flask.
• Deep understanding of asynchronous programming using AsyncIO, multithreading, and multiprocessing.
• Experience designing and developing microservices and RESTful/GraphQL APIs.
• Skilled in database design and optimization for MongoDB and PostgreSQL.
• Familiar with AWS services such as EC2, Lambda, S3, and RDS.
• Experience with Git, CI/CD tools, and automated testing/deployment workflows.
• Ability to lead teams, mentor developers, and make key technical decisions.
• Strong problem-solving, debugging, and communication skills.
• Comfortable working in Agile environments and collaborating cross-functionally.

Position Overview :

As an Intermediate Software Engineer, you will design, develop, and maintain high-performance and scalable applications for Membership, Marketing, and Map services. Your role involves coding, unit testing, and building applications to meet the needs of millions of Sam's members. You should be intellectually curious, passionate about technology, and a supportive team player.

Key Responsibilities :

- Design, code, and test scalable applications in Java and React.

- Ensure high performance and maintainability of applications.

- Participate in peer code reviews and support team deliverables.

- Manage applications to meet engineering and operational excellence criteria.

- Collaborate with team members to align efforts with business needs.

Required Skills and Experience :

- Java : Experience with Java 8 or above, including lambda functions and streams.

- React : Proficiency in React, including tools like Flux, Flow, and Redux.

- Testing : Strong in writing modular and testable code with frameworks like JUnit, Mockito, and Mock MVC.

- Front-End : In-depth knowledge of JavaScript, CSS, HTML, and React fundamentals.

- Micro-Services : Experience with micro-services architecture and distributed systems.

- Spring Boot : Hands-on experience with Spring Boot and related technologies.

- Databases : Experience with relational and NoSQL databases (e.g., Cosmos DB).

- Caching : Knowledge of caching technologies like Redis or Memcached.

- Monitoring : Experience with monitoring tools like Prometheus and Splunk.

- CI/CD : Familiarity with CI/CD tools like Jenkins, Git, Maven, and Gradle.

- Containerization : Experience with Docker, Helm, and Kubernetes.

- Cloud Platforms : Experience with Azure, GCP, or similar public cloud platforms.

- Performance Testing: Experience with performance testing tools like JMeter is a plus.

- Retail Domain Knowledge : Good understanding of the retail domain is beneficial.

Qualifications :

- Bachelor's degree in Computer Science, Engineering, or related field.

- 7+ years of experience in software engineering or a related field.

Additional Information :

- Strong problem-solving skills and analytical thinking.

- Ability to work effectively in a team environment

• Understand fundamental design principles and best practices for developing backend servers and web applications  Gather requirements, scope functionality, estimate and translate those requirements into solutions.  
• Implement and integrate software features as per requirements. 
•  Deliver across the entire app life cycle.
•   Work in a product creation project and/or technology project with implementation or integration responsibilities, Improve an existing code base, if required, and ability to read source code to understand data flow and origin
• Design effective data storage for the task at hand and know how to optimize query performance along the way.  
• Follow an agile methodology of development and delivery  
• Strictly adhere to coding standards and internal practices; must be able to conduct review code  Mentor and possibly lead junior developers  
• Contribute towards innovation  Performance optimization of apps 
•  Explain technologies and solutions to technical and non-technical stakeholders  
• Diagnose bugs and other issues in products  
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency

Must have / Good to have:

• 4+ years experience with Core Python development  Design and implementation of high-availability, and performant applications on Unix environment  
• Good with multithreading and data structures  
• Develop back-end components to improve responsiveness and overall performance  
• Familiarity with database design, integration wiht applications and python packaging.  Familiarity with front-end technologies (like JavaScript and HTML5), REST API, security considerations  
• Familiarity with functional testing and deployment automation frameworks  
• Experience in development for 3-4 production ready application using Python as programming language  
• Experience in writing unit test cases including positive and negative test cases 
•  Experience of CI/CD pipeline code deployment (Git, SVN, Jenkins or Teamcity) 
•  Experience with Agile and DevOps methodology 
•  Very good problem-solving skills  
• Experience with Web technologies is a plus  
• Experience with ELK stack is a plus.

You should have

• Degree in Computer Science or relevant field
• Strong knowledge and understanding of JavaScript and TypeScript
• Knowledge of multiple frontend languages and frameworks including HTML, CSS, SCSS, JavaScript and React.
• Knowledge of backend languages and frameworks primarily Node.js
• Familiarity with SQL databases (e.g. PostgreSQL)
• Knowledge of Docker, and Kubernetes would be a plus.
• Leadership skills for guiding and mentoring teammates.
• Understanding of CI/CD Concepts
• Awareness of key concepts in DevOps and Agile principles

Perks

• Flexible working hours - employee tracking is never a thing
• A fun and close-knit agile team.
• Open office layout that promotes collaboration, conversation, and camaraderie – the result-oriented team.
• Recreational activities to keep you away from the screen and live, laugh, and enjoy with the team.

Who We Are Looking For:

We are looking for a driven Blockchain & Solidity Developer who learns fast, who is humble and values teamwork. The ideal candidate will be technical, data-driven, creative, and efficient. The kind of person who joins our Team is passionate and willing to think outside of the box and execute on it. We are committed to helping you grow, challenging you with hard, meaningful work and celebrating our successes and failures together.

Preferred Experience:

• 3+ years of software experience ( Full stack) , 1+ years of Solidity development experience
• Presently leading as CTO, Tech Lead or Technical Project manager at established crypto project

Technical Skills

• Experience in development of solidity smart contracts and operating mechanism of blockchain encryption algorithms, consensus mechanism, security protocols etc.
• Proven work experience of deployments on ETH/BSC/MATIC networks and other EVM Chains
• Understanding of virtual machine architecture, memory, and stack.
• Familiar with Truffle, Waffle, and Hardhat, and the pros and cons of each framework.
• Familiarity with code versioning tools (git) and repo management.
• (Plus) Understanding of mainstream DeFi ecosystems like Uniswap, Compound, Curve etc.

Soft Skills

• Proficiency in English & Communication
• Team Collaboration and task management

What You Will Be Doing:

• Collaborates with the team on conceptualizing and developing new applications. Write high-quality, pragmatic code as part of a multidisciplinary agile team.
• Participate in design, development and code reviews.
• Take accountability for end-to-end production, testing, and shipping of code.

Our Offering:

• Purpose: You’ll be part of something bigger, working towards building a decentralized financial ecosystem.
• Culture: You’ll work in a thriving, friendly, and fun environment that promotes open discussions, jokes, learning, video games, and lots of fun.
• People: You’ll work with some of the most driven and intelligent people in the crypto space, engaging with a network of diverse talent team members & advisors.
• Flexible vacation policy: work with your manager to take time off when you need it

Flexiple's infrastructure is heavily powered by Ruby on Rails, and we're keen to onboard smart Ruby developers with some experience on JavaScript to help us build amazing web apps!

You'll be part of Flexiple's core engineering team and get a chance to work on multiple Ruby/JS apps, that are built for performance & scale. A typical day of engineering work at Flexiple would involve backend ruby work and getting your hands dirty in the frontend.

Our apps are built for internal & external users, and a few of them get 1 million+ monthly hits! We'd love for you to help us build performant systems that function at such scale.

We don't make compromises in design or code and all our apps are robust, fast and well-tested. However, we also focus equally on speed of development, which is typical of the startup dev culture. So you'll see the best of both worlds at Flexiple!

This is a fully remote position that can be done from anywhere. The CTC can be increased based on the experience of the individual (up to 20 lpa).

If you're backend Ruby developer, who also loves to tinker on the frontend, then this is the right opportunity for you.

• Build & deploy robust, well-tested products/features that are used by millions of users.
• Write crisp, clean & efficient Ruby and JavaScipt code, with equal focus on being easy to maintain and debug.
• Write clean & elegant CSS to bring static wireframes/mockups to life.
• Communicate effectively, contribute to improving the dev processes and brainstorm ideas.
• Share feedback with others, mentor your teammates and grow as a part of the team.
• Stay up-to-date with the latest technologies.

First week:

• Join the team, understand Flexiple's practices & processes.
• Set up your local dev environment
• Get familiar with our tech stack & products.
• Create your first pull request.

First month:

• Get acquainted with the different products and their business domain.
• Contribute actively to the development of one or more products.
• Develop a deeper understanding of Flexiple's product suite, technology and processes.

First six months:

• Contribute actively to product planning, software development, testing and maintenance.
• Suggest and implement improvements to our dev processes and codebase.
• Lead tech initiatives for Flexiple's products.

• 1+ years of software development experience
• Past experience with Ruby on Rails and HTML/CSS/JavaScript
• Developed at least 2-4 production-quality web apps (at work or personal projects; can be any technology/ stack)
• Excellent grasp over algorithms and data structures
• Ability to learn and master new technologies quickly
• Passionate about building robust web/ mobile/ desktop apps and stay updated with the latest technologies/ frameworks
• Outstanding written and communication skills

• A fully remote (work from anywhere) role
• Receive a more-than-competitive salary plus benefits
• A flat and transparent culture
• Support for setting up home office
• Enjoy a culture with opportunities for growth and learning

You will be directly working with Hrishikesh, co-founder at Flexiple. More about him can be found on his https://www.linkedin.com/in/hrishikeshpardeshi/">LinkedIn and https://twitter.com/hrishiptweets">Twitter profiles.

• Must have strong exposure working on Java Script 
  
• Proficient in Javascript frameworks (Vue Js / React Js) is a must
• Strong understanding of REST APIs
• Have experience with common front-end development tools such as Babel, Webpack, NPM is a definite advantage
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Proficient understanding of code versioning tools, such as GitHub
• Good to have working experience on CSS pre-processor either LESS or SASS
• Good understanding of BEM (Block, Element, Modifier) methodology