Full Stack developer

We are looking for a highly skilled Full Stack Developer (MERN Stack) with 3–5 years of experience to join our growing team. You will have the opportunity to work on cutting-edge technology solutions, build products from scratch, and contribute to scalable systems handling large volumes of data.

Key Responsibilities:

• Design, develop, and maintain scalable full-stack applications
• Build responsive and high-performance user interfaces using modern frontend frameworks
• Develop robust backend services and APIs
• Ensure seamless system performance while handling large-scale data without slowdowns
• Collaborate with cross-functional teams (product, design, QA) to meet business goals
• Optimize applications for maximum speed, scalability, and reliability
• Participate in architecture discussions and contribute to technical decisions

Required Skills & Qualifications:

Frontend

• Strong experience in React.js
• Hands-on experience with Next.js (mandatory)
• Good understanding of UI/UX principles and responsive design

Backend

• Solid experience in Node.js
• Experience with Python or Java is a plus
• Strong knowledge of RESTful APIs and microservices architecture

Databases

• Strong experience with SQL (mandatory)
• Experience with MongoDB is a plus
• Caching & Messaging
• Experience with at least one: Redis, Kafka, or Cassandra

Other Requirements

• Strong problem-solving and analytical skills
• Ability to work in a fast-paced, collaborative environment
• Good communication and stakeholder management skills

Good to Have:

• Cloud certifications (AWS / Azure / GCP)
• Experience working on high-scale or distributed systems
• Exposure to DevOps practices and CI/CD pipelines

Why Join Us:

• Opportunity to work on cutting-edge tech and greenfield projects
• Ownership and freedom to build solutions from scratch
• Collaborative and growth-focused work environment

When life gives you lemons, we turn them into seamless digital experiences.

Lemon Yellow LLP is looking for a Full Stack Developer Intern, someone who’s passionate about building, learning, and experimenting with code. You’ll collaborate with our developers and designers to turn ideas into real, functional web applications using the MERN stack. If you're eager to dive into the full development lifecycle and ship things that matter, this internship is for you.

Core Responsibilities

• Assist in building end-to-end web applications using MERN (MongoDB, Express.js, React.js, and Node.js)
• Transform UI/UX designs into responsive, accessible front-end components
• Write and test basic REST API endpoints
• Support feature development and contribute to bug fixes
• Document code and follow standard Git workflows
• Observe and learn from code reviews, deployment flows, and team development practices

API & Integration Exposure

• Gain exposure to API integrations and backend data handling
• Assist in connecting third-party tools and services
• Understand user authentication basics like JWT or OAuth

Code Quality & Testing

• Write simple unit tests to validate functionality
• Learn to debug and support in identifying issues and improving performance

Agile Collaboration

• Participate in daily stand-ups, sprint planning, and retrospectives
• Contribute to a collaborative development process through feedback and iteration
• Understand real-world agile workflows and team dynamics

Learning & Growth

• Stay curious and up to date with current trends in web development
• Attend team learning sessions and tech discussions
• Learn under the mentorship of experienced developers

What We Need From You

• Graduate in Computer Science, Software Engineering or a related field
• Basic understanding of JavaScript (ES6+), HTML5, and CSS3
• Exposure to at least one of the MERN technologies through coursework, side projects, or self-study
• Basic knowledge of Git and version control workflows
• Eagerness to learn, take feedback, and build real features
• A portfolio, GitHub profile, or personal projects is a plus

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.

You should apply if you believe in making a difference with your designs.

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.

Opportunity Summary

We are looking for an enthusiastic engineer with experience building Salesforce AppExchange apps to lead the development of Salesforce connectors for our marketing technology products.

What would you do?

·      Take a lead role with design and implementation of Salesforce connectors for our marketing platforms.

·      Collaborate with stakeholders in establishing application requirements, determining features, creating customer-friendly solutions, and determining support needs and performance requirements. 

·      Plan, design, develop, test, and deploy software to satisfy these requirements. 

·      Work according to the agile programming application development methodology adhered to including test-first, iterative development, and continuous re-prioritization.  

·      Support the maintenance of our hosted technology solutions. 

·      Work with other team members in accomplishing group objectives and participating in code reviews. 

·      Ensure timely and robust implementation of the company’s development plans.

·      Ensure that all relevant parties are kept up to date on progress of projects and give feedback on an ongoing basis. 

·      Contribute to the review, selection, and adoption of proprietary tools and technologies. 

·      Use specialist knowledge and experience of information technology to provide technical advice and vision.

Technical Skills

The following skills are needed for this role.

Experience

·      7+ years’ experience in web application design and development 

·      Bachelor’s Degree in relevant discipline or equivalent experience 

Primary Skills

·      Experience with Salesforce APEX, VisualForce, SOQL, etc. 

·      Experience building and maintaining Salesforce AppExchange apps. 

·      Experience working with databases and/or CRM systems. 

Secondary Skills (nice to have)

·      Strong background in Java 

·      AWS ecosystem and tools, developing for serverless environments. 

·      Front-end expertise: HTML, CSS, JavaScript, etc. 

·      Other languages such as JavaScript, Typescript, C#, Ruby, Python, PHP, etc. are all valuable. 

Soft Skills

·      Proven ability to lead a team and mentor others. 

·      Thrives collaborating in a team environment with a diverse range of people.

·      Passionate about delivering an amazing customer experience.

·      Able to have a change of mind, and able to change the minds of others.

·      Writes clearly and concisely.

·      Capable of working without a company office, with a fully remote team.

Growth Skills

·      Possesses a good work ethic; a self-starter with a desire to grow.

·      Always looking for better ways to get the job done.

Job Objectives:

- Integration of user- facing elements developed by front- end developers with server- side logic

- Optimize web applications to maximize speed and scale. Support diverse clients from high- powered desktop computers to small mobile devices

- Optimization of the application for maximum speed and scalability - Implementation of security and data protection

- Collaborate with senior management, operations & business team

- Building Rest APIs and maintain Database optimizations

Looking For:

- Great understanding of PHP, Node, react, Express, Socket.io, MVVM framework

- Worked on e- commerce website, server handling and deployments scripts

- The one who has worked on customer facing product for 2 years

- Strong knowledge of MERN stack

- Experience designing scalable, fault tolerant systems and databases.

We are looking for a Senior Developer to build and implement programs. As a senior developer, you’ll gain valuable management experience delegating responsibilities to the rest of your team and reviewing the work of junior developers.

Requirement

• Bachelor’s Degree in Computer Science required.
• 3+ years of experience in web and software development with NODE.JS and REACT.JS.
• Ability to work independently and multi-task effectively.
• Demonstrated understanding of projects from the perspective of both client and business.

Technical Skills

• Node Js
• MERN Stack
• Jira
• Version Control
• PHP, MySQL
• CSS
• OOP
• Agile Development

Roles & Responsibility

• Develops software solutions by studying information needs, conferring with users, studying systems flow, data usage, and work processes; investigating problem areas; and following the software development lifecycle.
• Documents and demonstrates solutions by developing. documentation, flowcharts, layouts, diagrams, charts, code comments, and clear code.
• Prepares and installs solutions by determining and designing system specifications, standards, and programming.
• Improves operations by conducting systems analysis and recommending changes in policies and procedures.
• Meeting deadlines.
• Accomplishes engineering and organization mission by completing related results as needed.
• Troubleshoot, debug and upgrade existing software  

Technical:

• Strong knowledge of HTML, CSS & Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Experience in JavaScript Frontend Framework/Library (ie ReactJS, gatsbyjs, AngularJS, Vue.js)
• Experience in JavaScript Backend Framework/Library (ie Node.js, Express.js)
• Experience with Popular React.js Workflows (i.e. Flux or Redux)
• Familiar with JavaScript Standard ECMAScript (or ES)
• Knowledge of secure authorization mechanisms, i.e. JSON Web Token
• Familiarity with modern front-end build pipelines and tools (i.e. NPM or Yarn, Gulp or Grunt)
• Experience with common front-end development tools such as Babel, Webpack, etc.
• A knack for benchmarking and optimization
• Understanding of server-side CSS pre-processors such as Stylus, Less
• ORM Knowledge (i.e. Sequelize or Mongoose)
• Knowledge of isomorphic React is a plus
• Familiarity with Firebase, MongoDB, MySQL, PostgreSQL Database
• Understanding of RPC, REST and GraphQL
• Familiarity with Version Control such as GitHub, BitBucket

• 3-12 years Senior level candidate should run department Independently.
• Should have hands on coding experience in Core Java, JSP, Servlets, JQuery, JavaScript, J2ee, Spring, Hibernate, TypeScript,  Angular 2/6/9, HTML, CSS3
• Microservices, CICD, Devops experience would be preferred.
• Release management
• Prepare detailed plan for the release, identify and manage risks
• Estimate time, effort and resources required for assignments
• Organize, delegate, track and coordinate team activities
• Provide visibility to senior leadership through regular updates
• Effective Interaction with Product Management, Domain experts on engineering related issues
• Design and development of subsystems and modules as per specifications
• Ensure team availability and responsiveness to production issues

• 2 to 4 years experience in MERN stack
• Good problem-solving technique
• Knowledge of AWS ecosystem is a plus
• Experience in FinTech is a big plus

Experience in Java (2+ years)

• Experience in SprintBoot(2+years)
• Good Knowledge of Microservice Concept
• Framework: Springboot, Spring Security, JAX-RS, Hystrix, Kafka
• ORM: Spring Data JPA. Hibernate
• Cloud Service: AWS(MSK, S3), Serverless lambda Functions
• Build tools: Maven, Gradle