Fullstack Developer

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.

Job Title:Full Stack Developer 

Location: Bangalore, India

About Us:

Meraki Labs stands at the forefront of India's deep-tech innovation landscape, operating as a dynamic venture studio established by the visionary entrepreneur Mukesh Bansal. Our core mission revolves around the creation and rapid scaling of AI-first and truly "moonshot" startups, nurturing them from their nascent stages into industry leaders. We achieve this through an intensive, hands-on partnership model, working side-by-side with exceptional founders who possess both groundbreaking ideas and the drive to execute them.

Currently, Meraki Labs is channeling its significant expertise and resources into a particularly ambitious endeavor: a groundbreaking EdTech platform. This initiative is poised to revolutionize the field of education by democratizing access to world-class STEM learning for students globally. Our immediate focus is on fundamentally redefining how physics is taught and experienced, moving beyond traditional methodologies to deliver an immersive, intuitive, and highly effective learning journey that transcends geographical and socioeconomic barriers. Through this platform, we aim to inspire a new generation of scientists, engineers, and innovators, ensuring that cutting-edge educational resources are within reach of every aspiring learner, everywhere.

Role Overview:

As a Full Stack Developer, you will be at the foundation of building this intelligent learning ecosystem by connecting the front-end experience, backend architecture, and AI-driven components that bring the platform to life. You’ll own key systems that power the AI Tutor, Simulation Lab, and learning content delivery, ensuring everything runs smoothly, securely, and at scale. This role is ideal for engineers who love building end-to-end products that blend technology, user experience, and real-time intelligence.

Your Core Impact

• You will build the spine of the platform, ensuring seamless communication between AI models, user interfaces, and data systems.
• You’ll translate learning and AI requirements into tangible, performant product features.
• Your work will directly shape how thousands of students experience physics through our AI Tutor and simulation environment.

Key Responsibilities:

Platform Architecture & Backend Development

• Design and implement robust, scalable APIs that power user authentication, course delivery, and AI Tutor integration.
• Build the data pipelines connecting LLM responses, simulation outputs, and learner analytics.
• Create and maintain backend systems that ensure real-time interaction between the AI layer and the front-end interface.
• Ensure security, uptime, and performance across all services.

Front-End Development & User Experience

• Develop responsive, intuitive UIs (React, Next.js or similar) for learning dashboards, course modules, and simulation interfaces.
• Collaborate with product designers to implement layouts for AI chat, video lessons, and real-time lab interactions.
• Ensure smooth cross-device functionality for students accessing the platform on mobile or desktop.

AI Integration & Support

• Work closely with the AI/ML team to integrate the AI Tutor and Simulation Lab outputs within the platform experience.
• Build APIs that pass context, queries, and results between learners, models, and the backend in real time.
• Optimize for low latency and high reliability, ensuring students experience immediate and natural interactions with the AI Tutor.

Data, Analytics & Reporting

• Build dashboards and data views for educators and product teams to derive insights from learner behavior.
• Implement secure data storage and export pipelines for progress analytics.

Collaboration & Engineering Culture

• Work closely with AI Engineers, Prompt Engineers, and Product Leads to align backend logic with learning outcomes.
• Participate in code reviews, architectural discussions, and system design decisions.
• Help define engineering best practices that balance innovation, maintainability, and performance.

Required Qualifications & Skills

• 3–5 years of professional experience as a Full Stack Developer or Software Engineer.
• Strong proficiency in Python or Node.js for backend services.
• Hands-on experience with React / Next.js or equivalent modern front-end frameworks.
• Familiarity with databases (SQL/NoSQL), REST APIs, and microservices.
• Experience with real-time data systems (WebSockets or event-driven architectures).
• Exposure to AI/ML integrations or data-intensive backends.
• Knowledge of AWS/GCP/Azure and containerized deployment (Docker, Kubernetes).
• Strong problem-solving mindset and attention to detail.

Job Summary:

We are seeking a motivated and skilled Founding Engineer to join our innovative team in Mumbai. This role offers a unique opportunity to help shape our technology and product direction, leveraging your expertise in full-stack development using React.js, Node.js, and MySQL.

Key Responsibilities:

• Design and implement user-friendly frontend applications using React to enhance user experience.
• Develop robust server-side applications and APIs with Node.js to support our business logic and data processing needs.
• Manage and optimize MySQL databases, ensuring data integrity and performance while querying and updating data.
• Collaborate closely with cross-functional teams including product management and UX/UI to deliver cohesive product features.
• Participate in code reviews and ensure adherence to best practices in software development, maintaining high-quality code.
• Assist in troubleshooting and debugging issues across the stack, ensuring a smooth operation of our applications.
• Contribute to the architecture and roadmap of our technology platform, helping to define future iterations based on user feedback.

Requirements:

• Bachelor's degree in Computer Science, Engineering, or a related field.
• 1 to 4 years of experience in full-stack development with a focus on React.js, Node.js, and MySQL.
• Strong understanding of web technologies, including HTML, CSS, and JavaScript frameworks.
• Proficient in database management and design, particularly in MySQL.
• Excellent problem-solving skills and the ability to work in a fast-paced startup environment.
• Demonstrated ability to work collaboratively in a team and communicate technical concepts clearly.
• Passion for building innovative and scalable applications that meet user needs.

Responsibilities:

• Developing high-performance applications by writing testable, reusable, and efficient code.
• Implementing effective security protocols, data protection measures, and storage solutions.
• Recommending and implementing improvements to processes and technologies.
• Designing customer-facing UI and back-end services for various business processes.

Requirements:

• 1-8 years of appropriate technical experience
• Proven experience as a Full Stack Developer or similar role preferably using MEANMERN stack.
• Good understanding of client-side and server-side architecture
• Excellent interpersonal skills and professional approach
• Ability to work in a dynamic, fast moving and growing environment
• Be determined and willing to learn new technologies
• Immediate joiners are preferred

• We are looking for a very Senior or Lead backend engineer with specialization in .NET technologies.
• This is an exciting opportunity to build a clean and modern framework for a customer-facing ecommerce product. You will be part of a product team in San Francisco, USA and Bengaluru, India.
• If you are passionate about building scalable services, you are well-versed with web technologies like MVC, you enjoy working with super smart people that you can learn from and contribute to their knowledge – this is the perfect position for you.
• You should have prior experience in leading engineering projects in an Agile environment, i.e. work with Product Managers to convert product specifications to technical specifications; design and code for complex features; ensure clean code is delivered by team.
• Our core application is used by 100,000+ paying customers, so there's lot of opportunity to make direct impact.

Requirements: ·

• 5+ years of experience in .NET and C#
• Expertise in developing services (SOAP-WCF and REST)
• Expertise in web development frameworks like ASP.NET MVC
• Good knowledge of database concepts and Microsoft SQL Server
• Solid foundation in computer science, with strong competencies in data structures, design patterns, concurrency, algorithms, and software design
• Experience working in any of the JavaScript frameworks like Ember.js, AngularJS or ReactJS is a bonus.
• Strong analytical and troubleshooting skills;
• Bachelors or Master’s degree in Computer Science (or equivalent).
• Note: Bangalore Office at WeWork-Bellandur.
• Salary will be on-par with best in Bangalore.