MERN Stack Developer

Profile: MERN Stack Developer

📍 Location: Andheri East, Mumbai

🏤 Work Mode: 5 Days WFO

⏰ Experience: 2+ Years

(Only immediate joiners & candidates who have completed notice period)

What We're Looking For:

✅ 2+ years of MERN stack development experience

✅ MongoDB - database design and complex queries

✅ Express.js - server-side application development

✅ React.js - component-based UI development

✅ Node.js - backend JavaScript runtime

✅ Kafka - event streaming and messaging

✅ Docker - containerization and deployment

✅ Redis - caching and session management

✅ RESTful API design and integration

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.

Procedure is hiring for WorkHero.

Across the U.S., thousands of small HVAC businesses are drowning in admin. WorkHero pairs seasoned office managers with AI workflows to free up their time, unlock growth, and modernize the trades. We handle everything that touches the back office of a small HVAC operation: billing, rebates, permits, warranties, marketing, and more. Our customers save dozens of hours every week, allowing them to focus on growing their business.

We are building at the intersection of Human and AI automation, and that’s where you come in!

How you will help us achieve it

As an Applied AI Engineer, you will collaborate with the company founders, product team, and office managers to develop agentic workflows for many of their daily processes. You will ideate, design, implement, and maintain the software side of the product. You will design the UX, develop the front end interfaces, build backend routes and design database models. The bulk of this role is interacting with office managers to understand their workflows and then creating and managing AI agents & workflows to make them more efficient.

In your day to day, you will:

• Partner with our frontline staff to understand their work so you can automate it with AI and save them time
• Live on the cutting edge of Human & AI interactions, keeping up to date with the latest patterns and how they apply to WorkHero and our workflows
• Contribute to exceptional code quality and performance of the code base
• Mentor young engineer(s) to be great at their craft, as our team grows

Key Details

• You can work remotely from anywhere with an overlap of at least four hours with the product team (6 pm to 10 pm IST)
• This role involves participating in calls with US-based stakeholders
• The compensation comes with a salary and an equity component
• Location - Remote
• YOE - 5 to 10 years
• NP - Immediate to 30 days

You’ll thrive if you

• Care about your craft and the mission of the software you are developing
• Are enterprising and can figure out how to convert workflows/playbooks to AI agents
• Work with cutting-edge AI tools and APIs
• Don’t just complete tickets that are assigned to you; you think deeply about the product and how you can make it great, then put that into action
• Enjoy developing 0-1 software products iteratively
• Are proficient in the Typescript ecosystem, including monorepos.
• Are skilled in React and Express (Koa is a plus) or similar tech
• Are pragmatic and understand trade-offs in software engineering

Requirements

• 4+ years of experience in building software products
• Have created applications using AI and LLMs. Can understand when to prompt, use RAG, create agents or fine-tune an LLM
• Have solid experience with the MERN stack
• Ability to debug and optimize complex systems
• Excellent communication and collaboration skills

Bonus points if you have

• Experience in mentoring junior team members. Better if they had gone to replace you in your team, allowing you to take up a more meaningful role
• Familiarity with our tech stack (React, Koa, Mongo, AWS, React Native)
• A good understanding of UX best practices for SaaS based interfaces & AI
• Built apps using React Native
• A deep understanding of infrastructure and can optimize for cost
• Set up evaluation frameworks for agentic workflows
• Contributed to open-source projects

Your First Six Months

• You will be working on creating AI Agents/Workflows based on the playbooks for some of the crucial workflows of HVAC office managers
• You will work on building the frontend, APIs and apply AI knowledge to add features to the office manager and admin portal, as well as the mobile app
• You will be using Vercel AI SDK to create abstracted AI agents and workflows with the capability of falling back to different providers
• You will demo the agentic workflows to US-based stakeholders—small HVAC business owners, product team and office managers
• You will monitor and manage the AI Workflows, ensuring quality and accuracy, improving them over time

About engineering at WorkHero

We value:

• High ownership and fast iteration
• Deep understanding our tools and systems
• Continuous improvement, both technically and interpersonal

Our technology stack:

• Full Stack TypeScript (React, React Native, KoaJS Backend, CRXJS Browser Extension)
• NX Monorepo with shared typing & libraries
• Infrastructure:
• AWS (ECS, Hosted RMQ)
• MongoDB Atlas
• Firebase & GCP services
• AI Tooling (Anthropic, OpenAI, Gemini, Deepgram)

Our team

• The Company is funded by Workshop Ventures Partners, a US-based venture studio focused on building great companies in Climate Tech
• The team consists of founding members from Harvard Business School and the Workshop Ventures team — Kyler, Furman, Chad, Jason, and Ulhas

Interview Process:

• Screening: Review of your open source contributions and past projects.
• First Round of Technical Evaluation: Assessing your problem-solving and AI integration skills.
• Technical Evaluation + Cultural Fit: Understanding your alignment with our team.

We have multiple open positions for full-stack engineers to work with us on a cutting-edge eCommerce trade analysis platform.

Must have experience with:

• NodeJS
• Mern Stack
• AWS
• Experience working on SaaS applications with a large codebase

Nice to have

• Tailwind
• DynamoDB
• Chart libraries such as ChartJS

We are looking for a MERN Stack developer to join our team at the earliest. In this role, as a Senior Mern Stack Developer, you will be entrusted with developing JavaScript applications using Node.js, Express, React.js, and Mongo DB. Apply now for the role of a Mern Stack Developer at Pattem that’s opening doors for skilled, energetic developers looking for Mern Stack Developer Jobs in Bangalore. If you can help us design and create multiple layers of applications while working cross-functionally across different infrastructures. You would fit perfectly if you love problem-solving, design, and creating quality offerings.

• As a MERN Stack Developer, it’s your responsibility to translate storyboards and various use cases to create high-performing apps
• Write, execute, and maintain clean, reusable and scalable code
• Integrate our various data storage solutions
• Ensure the responsiveness and boost the performance of our apps
• Find and address the various bottlenecks and bug-fixes
• Help in code automatization

• Previous working experience as a MERN stack developer for 3+ years
• Strong experience with full-stack Javascript framework, Mongo DB, Express, React.JS, Node JS.
• Self-motivated with the ability to work independently or jointly in a self-directed way.
• Demonstrated successful development of enterprise-grade web applications
• Proven analytical and problem-solving capabilities
• Keen attention to detail
• Comfortable leading product development
• Strong work ethic and desire to build industry-leading products
• Proactive instead of reactive
• Looking for ways to improve self and projects

What you need to have:

Job Description 

We are looking for a Full Stack Developer to produce scalable software. You’ll be part of a cross-functional team that’s responsible for the full software development life cycle, from conception to deployment.

As a Full Stack Developer, you should be comfortable around both front-end and back-end coding languages, development frameworks and third-party libraries. With problem-solving approaches and rigorous thinking abilities, we are looking for learners who may not know all the answers but are obsessive about finding them and know exactly where to look for them.

“If you’re also familiar with Agile methodologies, we’d like to meet you.”

Responsibilities 

• Writing code for both the front end and the back end using MERN stack [MongoDB, Express.js, React.js and Node. js]
• Creating RESTful API with Node.js
• Maintaining all the required documents for your project.
• Constantly coming up with new ideas and also implementing them to improve the app’s performance.
• Writing code for the app logic as well as the business logic using Reducers, Actions and Redux framework.
• Create Unit and Integration tests to ensure the quality of code

Requirements 

• At iDC, we value your skills more than your background and some certificates. Attempting the assignment will be your door to the opportunity.
• Knowledge of the database and familiarity with the schema design in NoSQL (i.e MongoDB) 
• A good understanding of the Software Development Lifecycle
• Knowledge of API design and development using REST
• Good understanding of object-oriented programming(OOP) and OOP patterns.
• Again, You don’t have to know it all in-depth but you should know how to dig the internet for finding the solutions.

We are backed by some of the best global early-stage technology investors, prolific fintech founders, and experienced insurance industry veterans.

Are you inspired by innovations?

Is problem-solving through teamwork in your DNA?

Do you have a never-ending passion for Robotics?

If your answer is 'YES' to any of the above questions, then you’ll fit right in here at ANSCER Robotics.

Why? Imagine a world where there is harmonious coexistence between robots and humans; to challenge this status quo, we apply cutting-edge technologies in robotics and software to solve real-world scenarios whilst creating a better world and elevating the human experience.

What do we do?

Design and build modular robotic systems that can be integrated across platforms and industries to work in harsh environments, be it land, air, water or space.

We call this  "ANSCER ENGINE (AE)", which supports industry-leading performing chips to process all types of workload. It is packed with robust features like power management, I/O management, a cooling system with inbuilt gold-standard IMU and controllers. 

All this incredible efficiency has been designed specifically for robots! With a heart and brain fused in a box, we offer a perfect platform for the development of industrial-use services robotic applications such as autonomous mobile robots (AMR) and autonomous mobile industrial robots (AMIR).  Along with our software solution, we enable any developer or company to have API access to our computer vision, planning, telematics and security to build any type of robot in a brief time.

Who are we? A lean team where most of us are self-taught designers, coders, product developers, exploring the field of mechatronics and IoT.  With a highly competitive market and limited time,  we, as a bootstrapped company, are working with finite options and the choices we make are risky yet highly rewarding.

We are a growing, dynamic company with extensive plans for the future ― and our people! We harness our team's potential and intend to create a plethora of opportunities for every striving member. We’re passionate about our work, we believe there is always a better way and we’re in this for the long haul.

How far have we come?  Incorporated in the month of July 2020, in less than a year, we translated our revolutionary idea and built a world-class robotics system that is made in India and produced more than 10 patentable technologies. On the brink of the COVID-19 pandemic, we built a game-changing solution that significantly eliminates the use of chemical disinfectants using our AE technology and won the "Hack For Cause" organized by the government of India, hack for Italy, the World Bank, Robotex and the European Union.

As a member of our Software Engineering Group, we look first and foremost for people who are passionate about solving business problems through innovation and engineering practices.
You'll be required to apply your depth of knowledge and expertise to all aspects of the software development lifecycle, as well as partner continuously with your many stakeholders on a daily basis to stay focused on common goals.

• Design, develop, and maintain a range of web apps using the language of your choice for new and existing client projects
• Develop user-friendly and intuitive front-end interfaces using HTML/CSS, JavaScript, and React
• Provide technical support for ad hoc initiatives across all departments (e.g. automation, reporting, data analysis, marketing analytics, etc).
• Contribute product and feature ideas that solve problems for our clients, users, and internal team
• Work independently and exercise your own creative judgment to achieve high-level project goals
• Write clean, reusable, and well-documented code while keeping technical debt to a minimum

• Back-end: Python, JavaScript, Postgres, GraphQL, Wagtail CMS, GraphCMS
• Front-end: HTML/CSS/Bootstrap, JavaScript (ES6), React
• Other: Git, AWS EC2/RDS, Docker, Webpack
• Excellent knowledge of Java technologies including core Java and SpringBoot
• Experience developing MicroServices
• Strong DB knowledge
• Well versed with cloud-native principles (Cloud Foundry or AWS)
• Front end development skills using Angular/React
• Working proficiency in developmental toolsets
• Knowledge of industry-wide technology trends and best practices
• Ability to work in large, collaborative teams to achieve organizational goals
• Passionate about building an innovative culture

RESPONSIBILITIES:

• Security: You must possess a base knowledge of security and the techniques involved for better performing at the outcome of such issues.
  
  
• Soft Skills: Knowing technical skills won't benefit the team, discipline, and the ability to accept criticism all add up to the soft skills of a developer.

• Web Architecture: Will be responsible for web architecture, code structure, data structure, file separation, and the location of computational tasks to help other developers develop applications and also be accountable for planning of the architecture to avoid unnecessary confusion related to the development cycle.

• Debugging: Bugs are relatively common in the development process, you will be responsible for setting up a system for developers to ensure that there are no bugs, and testing the code for bugs marks up as an essential skill.
  
  
• Building and Automation Tools:
 Web performance refers to the amount of time a web app takes to load. If performance time seems to be an issue, it is better to scale the images and omit irrelevant characters. Currently, carrying out this process can be time-consuming, you will be responsible for building and automation tools to come to the team's rescue.

• Database/Web Storage: Need to be an expert in relational databases, NoSQL databases, and memory storage with abilities to design and manipulate complex database queries.
  
  
• Developers must be aware of basic design techniques. It is crucial for designing neat and user-friendly websites that appeal to users; they must have fundamental design principles that include UI/UX design and knowing rapid prototype techniques using tools.

QUALIFICATIONS ( Must have skills):

• JavaScript (preferred MERN STACK)
• jQuery
• NPM
• Python
• HTTPS and REST
• AWS / GCP / Azure
• Know how to create your own AI solutions using existing open-source projects
• Micro Architecture
• Must have ability to handle, clean, visualize and analyze big data like (NumPy, Pandas, Sklearn, Matplotlib, Seaborn)

Bonus:

Being aware of design techniques It is crucial for designing neat and user-friendly websites that appeal to users; with strong knowledge of fundamental design principles that include UI/UX design and knowing rapid prototype techniques using 3rd party tools.

NICE TO HAVE:

Full Stack Developer - Looking for top 5% talent from growth startups

About the Company:

Torre Capital is a VC-Funded Fintech based out of Singapore focused on disrupting the Asset Management Industry. We are backed by prestigious VC firms and a network of angels and industry leaders, with over 18 months of runway. We are creating new ways to interact and service High Net Worth Individuals using latest tech and analytics interventions. Torre Capital was started by professionals (Mckinsey, Accenture, Flipkart, PayU, CIMB) with 50+ years of experience in Digital Business Build and Asset Management.

Job Description:

We are looking for an experienced Full stack Engineer with 3-7 years of programming experience in a product development team. You are in top 5% of your field, and are passionate about creating new products and innovative code.

We are building a solution that deploys elements of tokenization using blockchain, ML driven portfolio selection and risk management, and a proprietary alternate secondary market for illiquid securities. You will work on relevant and cutting-edge technologies.

Key Requirements

• BE/ BTech or MTech/ Dual degree in Computer Science/Software engineering or similar from a tier 1 institute
• Fullstack development (Node.js or Python + React + React Native + GCP/AWS)
• Writing clean, semantic HTML, CSS working across all popular browsers
• Experience with typescript
• SQL/NoSQL database design, management and optimization
• Good at Functional style programming
• You have worked with and built REST APIs & GraphQL
• Experience with continuous deployment, familiar with AWS and Devops
• Experience implementing tests at all levels – unit, integration, E2E. TDD believer.
• Strong fundamental knowledge of algorithms, data structures, design patterns and network protocols.
• Previous work experience of at least 2 years in a similar role with an established startup
• Ability to deep dive into problem-solving and build elegant, maintainable solutions to complex problems
• Excellent interpersonal skills
• Deep knowledge of at least one backend frameworks

What we offer:

• Excellent fixed compensation with milestone linked bonuses
• Flexible work hours, family-friendly
• Independent work culture, no micro management
• Significant ESOPs in a fast-growing startup