Senior Java Full Stack Developer

Position : Full Stack Developer (Node.js + React.js)

Experience : 5+ Years

Location : Gurgaon (Work From Office - 5 Days)

Notice Period : Immediate or within 7 days

Job Description :

We are looking for a highly skilled and passionate Full Stack Developer with strong experience in Node.js and React.js, and a solid understanding of Microservices Architecture.

This is a full-time, on-site opportunity based in Gurgaon, ideal for someone who thrives in a fast-paced development environment.

Mandatory Skills :

Node.js, React.js, JavaScript (ES6+), RESTful APIs, Microservices Architecture, MongoDB/PostgreSQL, Git, HTML5, CSS3, JWT

Key Responsibilities :

• Design, develop, test, and maintain scalable web applications using Node.js (backend) and React.js (frontend).
• Build and integrate RESTful APIs and Microservices in a production-grade environment.
• Participate in code reviews, architecture discussions, and performance optimizations.
• Collaborate with cross-functional teams including UI/UX designers, QA, DevOps, and product managers.
• Write clean, maintainable, and reusable code adhering to best practices.
• Ensure system reliability, security, scalability, and performance.
• Debug and resolve production issues efficiently.

Must-Have Skills :

• 5+ Years of full-stack development experience with Node.js and React.js.
• Strong expertise in JavaScript, ES6+, HTML5, CSS3, and responsive design.
• Solid hands-on experience in Microservices Architecture and containerized services (Docker, Kubernetes is a plus).
• Proficiency in RESTful API development and integration.
• Experience with databases such as MongoDB, PostgreSQL, or MySQL.
• Familiarity with version control tools like Git and CI/CD pipelines.
• Understanding of Agile/Scrum methodologies.

Good to Have :

• Knowledge of authentication/authorization mechanisms (OAuth, JWT).
• Exposure to cloud platforms like AWS, Azure, or GCP.
• Familiarity with testing frameworks such as Jest, Mocha, or Cypress.

Job Title: Senior Full-Stack Developer (Tech Lead)

Experience: 5–8 Years

Location: Ahmedabad (Hybrid / On-site preferred)

Salary: Flexible for the right candidate

Note: This role is strictly for Ahmedabad-based (local) candidates. On-site presence is mandatory.

Role Overview

We are seeking a highly skilled Senior Full-Stack Developer (Tech Lead) to lead technical delivery and oversee end-to-end system execution. The ideal candidate will take ownership of architecture, ensure high-quality engineering standards, mentor junior team members, and effectively communicate with clients and stakeholders.

This role is best suited for a hands-on professional who enjoys solving complex problems, building scalable systems, and taking full responsibility for technical outcomes.

Key Responsibilities

• Design, develop, and maintain scalable backend and frontend systems
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• Own system architecture and technical decision-making
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• Lead code reviews and enforce clean, modular, and maintainable code practices
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• Collaborate with clients to understand requirements and provide technical solutions
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• Mentor and guide junior developers to improve overall team performance
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• Ensure reliability, performance, and security of applications
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• Drive best practices across development, deployment, and CI/CD workflows
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• Design and integrate Generative AI–powered features where applicable (e.g., chatbots, content generation, automation tools)

Required Technical Skills

Backend (Must-Have)

• Strong experience with Node.js (Express.js / NestJS)
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• RESTful API design and implementation
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• Database design, optimization, and performance tuning
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• Experience with PostgreSQL / MySQL
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• Hands-on experience with MongoDB or other NoSQL databases
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• Authentication and authorization mechanisms (JWT, OAuth2, RBAC)
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• Willingness to learn Python and its frameworks (Django / FastAPI)
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• Basic Python knowledge is an added advantage
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• Experience with React.js or Next.js
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• Strong knowledge of JavaScript / TypeScript
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• Component-driven architecture and reusable UI patterns
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• State management using Redux / Zustand / Context API
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• Responsive UI development using MUI, Ant Design, or Tailwind CSS
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Engineering Practices

• Proficient with Git, GitHub/GitLab
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• Understanding of CI/CD pipelines
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• Experience with Docker and containerization
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• Familiarity with clean architecture and modular design patterns
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Bonus Skills (Nice to Have)

• Microservices architecture
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• Experience with Prisma ORM
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• DevOps exposure (AWS, EC2, Vercel, Docker, Nginx)
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• Caching solutions such as Redis
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• Queue systems (Celery, Kafka, RabbitMQ)
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• Exposure to AI / LLM integrations
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Soft Skills

• Strong sense of ownership and accountability
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• Excellent English communication skills (verbal and written)
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• Proven ability to mentor and lead junior developers
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• Strong analytical and problem-solving mindset
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• Reliable, consistent, and delivery-focused
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• Leadership maturity and professionalism
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Responsibilities:

• Work as part of a collaborative, agile team to deliver industry-leading engagement capabilities on the web.
• Integrate with other services to help the client seamlessly provide value to more companies.
• Design and develop feature enhancements that continue to deliver value and provide an excellent customer experience.
• Troubleshoot and resolve emergency server or code issues at any stack level.

Requirements:

• Ability to empathize with end-users; build with scale and ease of adoption in mind.
• Experience building in an agile setting with code reviews and quality as a priority.
• Strong design skills for separation and modularity of code; aversion to overly complex, spaghetti code.
• A bachelor's degree in Computer Science, related technical field, or commensurate experience.
• 3 years experience in production web application development.
• 5 years of experience working with NodeJS or an equivalent web framework and language.
• Experience writing JavaScript code, either vanilla JS or using a framework such as Node.js or React, or Redux.
• Unit testing experience (Jest).
• 3rd-party API usage and integration experience.
• RDBMS usage (e. g., MySQL, PostgreSQL).

Interview Process:

• Introductory Round
• Technical Round - Algo/low level coding round based on real world scenario
• Technical Round - System Design or High level design coding round and AWS
• Offer discussion

• Minimum of 1-2  years of experience as a Full Stack Developer or similar role.
• Bachelor’s degree in Security, Computer Science, or a related field.
• Experience with  React.js, Node.js, Next.js, and JS libraries.
• Must have an understanding of web3 and blockchain fundamentals.
• An exceptional understanding of secure and scalable application development, including the full lifecycle of API microservices services, including authentication, API gateways, and versioning.
• Excellent analytical and time management skills.
• Ability to wear many hats and learn new technologies quickly.
• Solid knowledge of web architecture and design patterns.
• Good knowledge and understanding of Backend and Frontend technologies
• Hands-on experience in building REST API using NodeJs
• Excellent communication and teamwork skills
• Great attention to detail.

We are looking for a driven, curious and sincere full-stack software engineer having 0-2 years of professional experience. They will be assigned to a 0 to 1 project which presents a great opportunity to learn and grow.

Roles & Resposibilities:

• You will be involved in full-stack development
• Working on relational as well as non-relational databases.
• Writing and maintaining high-quality code.
• Learning the code base and improving your coding skills.

Desired skills and qualities:

• Bachelor degree in computer engineering or related field.
• Atleast 6 months of full-time or internship experience in Javascript.
• Data structures and algorithms.
• Strong understanding of object-oriented programming.
• Ability to communicate ideas clearly(verbal/written).
• HTML and CSS.

This is a technolog yagnostic position and you would be viewed as a technolog enthusiast who can work (not code) on architecture and designing of any application immaterial of the technology used.

Your experience as a programmer of a technical lead will benefit a lot. 

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

• Atleast 8 years of experience working either in Java/JEE, Python or Ruby on Rails.
• Ability to manage a team and handle clients.
• 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.