Fullstack Developer (Senior)

Job Title: MERN Stack Developer (Node.js & React.js Expert)

Experience: 5 – 7 Years

Location: Bangalore

Work Mode : Hybrid

Employment Type: Full Time

Job Summary:

We are seeking a highly skilled MERN Stack Developer with a strong background in Node.js and React.js to join our dynamic team. The ideal candidate should have 5–7 years of hands-on experience building scalable, secure, and high-performance web applications. You will play a critical role in the architecture, design, development, and deployment of end-to-end solutions using the MERN stack.

Key Responsibilities:

• Design, develop, and maintain full-stack applications using MongoDB, Express.js, React.js, and Node.js
• Build RESTful APIs and ensure integration with front-end components
• Optimize components for maximum performance across a vast array of web-capable devices and browsers
• Write clean, modular, and reusable code with proper documentation and testing
• Troubleshoot and debug issues across the stack
• Collaborate with UI/UX designers, product managers, and other developers to deliver high-quality products
• Participate in code reviews, architectural discussions, and continuous improvement of development processes
• Ensure secure coding practices and compliance with best standards
• Manage deployments and maintain CI/CD pipelines

Required Skills and Qualifications:

• 5–7 years of professional experience in full-stack web development with a focus on Node.js and React.js
• Deep understanding of JavaScript, ES6+, and asynchronous programming
• Strong experience in building scalable backend services using Node.js and Express
• Proficient in building rich UI components using React.js, Redux/Context API, and modern front-end tooling (Webpack, Babel, etc.)
• Experience with MongoDB and Mongoose, and understanding of NoSQL database design
• Hands-on experience with API design, JWT/Auth, and third-party integrations
• Familiarity with Git, Docker, and modern DevOps practices
• Knowledge of performance optimization and security best practices
• Experience with testing frameworks (Jest, Mocha, Cypress, etc.)

Nice to Have:

• Exposure to TypeScript
• Experience with GraphQL
• Familiarity with cloud platforms like AWS, Azure, or GCP
• Knowledge of CI/CD tools like Jenkins, GitHub Actions, etc.

Note : Immediate & Serving Notice period candidates are prefered

Job Summary:

Senior React Native developer will be responsible for developing, designing and maintaining the core framework of mobile applications for our platform. This includes tasks such as creating and implementing new features, troubleshooting and debugging any issues, optimizing the performance of the app, collaborating with cross-functional teams and staying current with the latest advancements in React Native and mobile app development. We are looking for exceptional candidates who have an in-depth understanding of React, JavaScript and TypeScript, can create pixel-perfect UI and are obsessed with creating the best experiences for end users.

Your responsibilities include:

1. Architect and build performant mobile applications on both iOS and Android platforms using React Native.
2. Work with squad leaders and other managers to provide technical consultation and assist in defining the scope and sizing of work.
3. Maintain compliance with standards such as ISO 27001, ISO 13485, and Cyber Essentials that Avegen adheres to.
4. Lead configuration of our platform HealthMachine™ in line with functional specifications and development of platform modules with a focus on quality and performance.
5. Write well-documented, clean Javascript/TypeScript code to build reusable components in the platform.
6. Maintain code, write automated tests and assist DevOps in CI/CD to ensure the product is of the highest quality.
7. Lead by example in best practices for software design and quality. You will stay current with tools and technologies to seek out the best needed for the job.
8. Train team members on software design principles and emerging technologies by taking regular engineering workshops.

Requirements

1. Hands-on experience working in a product company developing consumer-facing mobile apps that are deployed and currently in use in production. He/she must have at least 3 mobile apps live in Apple App Store/Google Play Store.
2. Proven ability to mentor junior engineers to realize a delivery goal.
3. Solid attention to detail, problem-solving and analytical skills & excellent troubleshooting skills.
4. 4+ years’ experience working as a mobile developer in React Native.
5. In-depth understanding of React and its ecosystem with the latest features.
6. Experience in writing modular, reusable custom JavaScript/TypeScript modules that scale well for high-volume applications.
7. Strong familiarity with native development tools such as Xcode and Android Studio.
8. A positive, “can do” attitude who isn’t afraid to lead the complex React Native implementations.
9. Experience in building mobile apps with intensive server communication (REST APIs, GraphQL, WebSockets etc.).
10. Self-starter, able to work in a fast-paced, deadline-driven environment with multiple priorities.
11. Excellent command of version control systems like Git.
12. Working in Agile/SCRUM methodology, understanding of the application life cycle and experience working on project management tools like Atlassian JIRA.
13. Good command of the Unix operating system and understanding of cloud computing platforms like AWS, GCP, Azure etc.
14. Hands-on experience in database technologies including RDBMS and NoSQL and a firm grasp of data models and ER diagrams.
15. Open source contributions and experience developing your own React Native wrappers for native functionality a plus.

• Architect, develop and maintain core products and services of the company.
• Create database architecture and best practises for optimization in speed and product operating costs.
• Design client-side and server-side architecture
• Build the front-end of applications through appealing visual design
• Develop and manage well-functioning databases and applications
• Write effective APIs with high-volume large scale transaction processing capabilities.
• Collaborate with design teams to ensure flawless UI and UX is achieved 
• Build features and applications with a mobile responsive design
• Write technical documentation
• Test software to ensure responsiveness and efficiency
• Work with customers in evaluating technical requirements.
• Work closely with the product managers to achieve product vision and goals
• Review work of other developers and contractors, provide feedback and mentoring.
• Assist in the hiring of technical talent.

• Proven experience as a Full Stack Developer or similar role for atleast 3 years 
• In depth knowledge of Ruby on Rails, NodeJS, ExpressJS or Restify
• Experience implementing applications using Angular 1 or React
• Experience creating front end applications using HTML5, Angular, LESS/SASS
• Hands on experience with JavaScript Development on both client and server-side
• Automating the building and deploying of code along with continuous integration (Jenkins/Hudson) and version control (SVN, Git)
• Strong experience is deploying and managing application in AWS and Google Cloud
• Creating secure RESTful-based web services in XML and JSON, Javascript, JQuery
• Experience with modern frameworks and design patterns, minimum 2 years experience with MEAN Fullstack paradigm

• Know how to create apis and applications
• Know how to architect and scale databases
• Know how to build front end for applications
• Know how to deploy applications on the cloud

• 12 to 16 years of experience in enterprise level software architecture, design, development (architecture, design patterns, reliability and scaling) of new and current systems
• Experienced in Full Stack product development
• Bachelor’s Degree in computer science or a related field
• Computer Science fundamentals in data structures, algorithm design and problem solving.
• Extensive knowledge and deep understanding of Java and related technologies
• Experience with modern software development methodologies: Agile/Kanban, CI/CD, DevOps, etc.
• Proficiency in Full Stack product development
• Proficiency with Java is essential.
• Proficiency with React, TypeScript, JavaScript, HTML CSS is essential
• Proficient with REST APIs
• Proficient with product development experience on both front end and back end
• Experience with AWS and/or other public cloud technologies.
• Database Experience (query optimization, index generation, caching) or NoSQL DBs a plus

Preferred Qualifications:

• Bachelor’s degree in Computer Science, Information Technology, or a similar field.
• Previous experience working as a React.js Developer.(2-8 years)
• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• Experience with user interface design.
• Knowledge of performance testing frameworks including Mocha and Jest.
• Experience with browser-based debugging and performance testing software.
• should have hands-on experience in backend software development using Java.
• should have proven expertise in Spring Boot REST/Microservices.
• should have working experience with relational and NoSQL databases.

If you believe in “ First, solve the problem. Then, write the code. ”, we are looking for you. 

• Atleast 4 - 6 years of experience working Ruby on Rails.
• Ability to manage a team.
• Very good at Analysis and Design.
• Passion to write good quality code.
• Able to work in a fast paced environment.
• Able to manage multiple tasks with changing priorities in a cross-functional environment
• Team player
• Ability to balance competing priorities.
• Excellent communication skills.

BoTree Technologies was incorporated in 2012 and since then we have constantly worked towards building a place to work which provides each member an opportunity to challenge herself and grow on a day to day basis.