Part-time Mentor for MERN stack

When life gives you lemons and you can code both front and back with equal zest, you’re probably a Full Stack Developer we’d love on our team.

At Lemon Yellow, we’re looking for someone who thrives on building end-to-end web solutions using the MERN stack. From crafting intuitive front-ends to developing efficient, scalable back-end systems, you’ll be involved in shaping digital products from the ground up. If turning design mockups into pixel-perfect, high-performance applications excites you, we’re ready to build with you.

1. Core Responsibilities

• Build and maintain end-to-end web applications using the MERN stack.
• Act as a bridge between design and development to bring ideas to life with clean, scalable code.
• Support digital campaigns through intuitive and functional tech implementations.
• Design, develop, and deploy scalable front-end and back-end components.
• Write clean, maintainable code while collaborating with designers, marketers, and other developers.
• Translate product requirements and UI/UX wireframes into fully functional digital solutions.

2. API & Integration Management

• Implement RESTful APIs and connect third-party tools and services.
• Ensure smooth data exchange across platforms through secure integrations.
• Manage user authentication and authorization using mechanisms like JWT or OAuth.

3. Code Quality & Optimization

• Debug, profile, and optimize applications for performance and reliability.
• Maintain unit and integration test coverage for code robustness.
• Conduct code reviews and help improve internal coding standards.

4. Agile Collaboration

• Actively participate in agile activities: daily stand-ups, sprint planning, retros, and demos.
• Contribute to task estimation and cross-functional problem-solving.
• Stay responsive to project shifts and quick delivery needs.

5. Continuous Learning & Innovation

• Stay up to date with the latest development trends, tools, and practices.
• Share learnings and explore creative solutions for technical challenges.
• Experiment with emerging technologies and suggest process improvements.

Requirements

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• Minimum 1 year of hands-on experience building production-ready web applications using MongoDB, Express.js, React.js, and Node.js.
• Strong command of JavaScript (ES6+), HTML5, and CSS3.
• Experience with Git and version control systems
• Familiarity with RESTful API design, JSON, and authentication mechanisms (JWT, OAuth)
• Familiarity with cloud platforms (AWS, Azure, or GCP) and containerization (Docker).
• Basic understanding of CI/CD pipelines and automated testing.
• Strong analytical and problem-solving mindset.
• Detail-oriented with a passion for clean, maintainable code.
• Collaborative attitude with good verbal and written communication skills.

What are we offering?

Experience

• A chance for you to work in a thriving and growing environment. We foster a culture where growth is harmonious and creativity is always appreciated - you grow and you encourage others to do the same.

Exposure

• If you believe in your work, we believe in you. If you think your designs have the power to change the world, we'll help you bring your vision to life and give you the platform to prove it.

Empathy

• We have a carefully curated culture that promotes 2 things: fun & fulfilment. Your welfare - personal, professional, mental, and physical - becomes our responsibility. From Fitness Thursdays to learning sessions, we try to make you laugh & learn.

Who are we?

Lemon Yellow LLP is a user-centered UI/UX design agency, based out of Thane, Maharashtra. With international operations, an experienced mentorship, and a passionate team, we aim to design digital happiness.

How do you reach us?

Well, after you send in your application, it takes us 2-3 weeks to review it. Sometimes, not often, we might delay just a bit beyond that. This happens when our mailbox is flooded with applications.

We promise we won’t ghost you, you’ll definitely hear from us. In the meantime, feel free to explore our official website.

We are seeking an experienced Senior MEAN/MERN Developer with 2 to 5 years of professional experience to join our development team. The ideal candidate will possess strong expertise in the MEAN (MongoDB, Express.js, Angular, Node.js) or MERN (MongoDB, Express.js, React, Node.js) technology stacks, along with a solid understanding of data structures and algorithms.

Key Responsibilities and Skills:

• Design, develop, and maintain scalable web applications using MEAN or MERN stack.
• Demonstrate a strong command of data structures and algorithms to optimize application performance.
• Work extensively with MongoDB for database design and management.
• Possess basic knowledge of AWS services to support cloud infrastructure needs.
• Understand and implement microservices architecture for modular and maintainable systems.
• Collaborate effectively with cross-functional teams in a fast-paced environment.

Additional Requirements:

• Preference will be given to candidates willing to work from our Hyderabad office location.

The successful candidate will have a detail-oriented approach, a commitment to code quality, and strong problem-solving skills.

Responsibilities :

• Design and write lots of bug-free, efficient, scalable, and reusable code
• Developing front-end architecture and ensuring responsiveness of the application
• Work across the full stack, building highly scalable products that enable positive user experiences and measurable business growth. 
• Working on refactoring the current codebase and determining the root cause for the most complex software issues and developing practical, efficient, and permanent technical solutions
• Optimizing backend services to scale for a few hundred concurrent users
• Develop APIs and scripts using backend programming languages like Node.js and Nest.js 
• Dockerizing different services and automating our AWS infrastructure provisioning steps
• Design and implementation of continuous integration and deployment. 
• Determine process improvements, and best practices, and develop new processes
• Mentor and coach other software engineers
• Integrating with third-party APIs and existing frameworks.
• Ensuring responsiveness of applications and writing maintainable, scalable, and unit-testable code. Be passionate about the long-term stability, scalability, and reusability of shared components.
• Implement new requirements, handle change requests, and fix bugs for different releases. Deliver a high-quality and functioning code.
• Integrating solutions to enterprise software and legacy software
• Actively Participate in sprint ceremonies and work towards continually improving the process
• Prioritizes tasks and keeps manager up to date on status and roadblocks
• Help the junior engineers to unblock them and guide them on best design practices. Help in code reviewing on a regular basis
• Prepare thorough technical documentation which can be used by other engineers
• Stay up to date with new technologies and determine how to incorporate these into future platform capabilities

Requirements:

• Minimum 4-8+ years of overall experience developing B2B SAAS products 
• 3+ years of Experience working on React.js and its core principles
• Bachelor's degree in Computer Science or a related field
• Hands-on experience with Node.js and Express.js including state management like Redux
• Good understanding of NestJS, Next.JS, Tailwind CSS, Server-Side Rendering, Storybook/Bit, Bootstrap, and Material UI.
• Thorough understanding of modeling and scaling databases like MongoDB, DynamoDB or Firestore
• Deep understanding of object-oriented JavaScript and design principles and standards
• Hands-on experience in UI optimization best practice implementations
• Understanding of Serverless architecture like Lambda or Google Cloud functions
• Significant experience in developing high-performance, distributed, and scalable applications with container deployment (Docker and Microservices)
• Well-versed with collaboration, and Testing tools like Git, Swagger, and Cypress
• Proven experience with unit testing, integration testing, and end-to-end testing.
• Knowledge of open-source technologies and common front-end development tools such as Babel, Webpack, NPM, PNPM etc.
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Knowledge of Nginx and AWS services like S3, and EC2 will be helpful

Preferred Skills:

• Exposure to Terraform, GItlab CI/CD, and GitOps is a plus
• A keen eye for UX has experience building complex B2B applications
• Comfortable working in a dynamic startup environment where experimentation is one of the most common practices for product innovation and improvements
• Basic understanding of the Figma Tool and app development via React Native
• Good experience with deploying applications on AWS & DevOps

Nice to Have:

• Great learning attitude and eagerness to take ownership
• Passionate personality with great enthusiasm for life outside of work
• Critical thinker and a problem solver who has a sense of urgency and wants an interesting job that pushes you out of your comfort zone.
• An innovator who is inspired by the endless ways in which everything we do can always be improved
• High-energy personality, with a strong and demonstrable work ethic

What we Offer:

• Competitive salary 
• Health Insurance
• Remote working environment
• Workday Swap
• Learning Culture

• Develop new user-facing features
• Build reusable code and libraries for future use
• Ensure the technical feasibility of UI/UX designs
• Optimize applications for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end services
• Define APIs for front-end and back-end
• Consume 3rd party APIs
• Collaborate with other team members and stakeholders

• Strong understanding of JavaScript, its quirks, and workarounds
• Basic understanding of web markup, including HTML5 and CSS3
• Good understanding of advanced JavaScript libraries and frameworks - Angular, RxJS, Internationalization
• Good understanding of asynchronous request handling, partial page updates and reactive components
• Proficient understanding of cross-browser compatibility issues and ways to work around such issues
• Familiarity with front-end build tools
• Proficient understanding of Git
• Good understanding of browser rendering behavior and performance
• Basic understanding of HTTP requests and proficiency in creating REST APIs using Swagger
• Strong understanding of relational databases and its concepts - MySQL
• Ability to write database queries and transactions using sequalize ORM
• We would prefer it the candidate has an experience of min 1 year but a maximum of 3 years with all above mentioned technologies, libraries and frameworks

Skills:

• .NET framework, VB, C#
• HTML 5, Bootstrap, CSS, Less .
• Communication Protocols like HTTP, TCP, WCF, Web API, Modbus.
• Databases- MS SQL Server 2008 R2, MySQL. Knowledge on Redis, MongoDB.
• Scripting language -Java-Script, jQuery, AngularJS, SignalR, Ajax.
• AWS SDK preferred, Cloud Migration., IIS, Self-hosting, window server,
• Other tools -Postman & Fiddler, Tortoise SVN, Mantis bug tracking, Redmine.

Key Strengths :

• Good debugging skills.
• A major responsibility includes planning development cycle, designing, module development, code merge, Unit / Integration testing etc.
• Highly motivated team player.
• Experience in working on multiple projects simultaneously.
• Quick learning of any new technologies.
• Capable to take independent responsibility as well as ability to contribute and be a productive team member.

Key responsibilities:

• Involved into discussion of design and development of new feature enhancement.
• Involved in integration with the IoT devices over the TCP binary protocol.
• Involved in design and development of Web API to expose the data uploaded by devices to third party applications.
• Coordinating with the testing team for fixing bugs.
• Coordinating with firmware (Embedded) team for device integration.
• End to end design and development of modules.

Responsibilities:

• Make changes in the existing code base of talent marketplace and implement new features.
• Collaborate with stakeholders that are involved in product design (marketing specialist and product manager).
• Report the progress to other stakeholders.
• Do bug fixes and push the source codes to the live server.
• Be responsive to change requests and feature requests
• Create Unit and Integration tests to ensure the quality of code

Requirements:

• Experience in Node js , MongoDB and Angular.
• Experience in JavaScript development.
• Understanding in MEAN or MERN Stack.
• Experience in the use of project planning tools (JIRA, Version One, GitHub, etc.)
• Excellent written and verbal communication skills (English).
• Understanding of various technologies including applications and databases.
• Able to handle multiple projects and competing deadlines
• Good understanding of overall web design including basic usability, accessibility, industry standards, architecture, and navigation
• Able to handle multiple projects and competing deadlines
• Fluent knowledge of latest HTML/CSS standards and best practices
• Experience building Responsive websites for web, tablet and mobile devices