Mean Stack Lead

Tech Stack

Frontend: React.js, TypeScript, Next.js, React Native, Redux, GraphQL, Tailwind CSS

Backend & Infra: Java (Spring Boot), Microservices, AWS ECS, Redis, ScyllaDB, MongoDB,

GraphQL, AWS Lambda, MySQL, Aurora

Event Driven & AI: SQS, Kinesis, Claude, Cursor, LangChain

Observability: Prometheus, Grafana, CloudWatch, Sentry

Engineering Excellence: JVM tuning, GC profiling, Circuit Breakers, Async Tracing

We’re hiring an experienced Full Stack Engineer (React + Java) with 5–10 years of

experience to design, build, and scale real-time web applications for our global B2B

hotel marketplace.

You’ll work across the stack—from building intuitive, data-driven UIs to

high-performance backend services that power our distribution engine.

Responsibilities

● Build and maintain end-to-end features spanning React.js frontends and Java

(Spring Boot) microservices and database integrations .

● Develop responsive, performant, and accessible UIs integrated with REST

and GraphQL APIs.

● Design and scale low-latency, high-throughput microservices for real-time

data workflows.

● Implement event-driven systems using Kafka or SQS for asynchronous

communication.

● Collaborate closely with Product, Design, and Architecture teams to translate

business requirements into scalable technical solutions.

● Optimize application performance via caching strategies, async processing,

and database tuning.

● Implement and maintain CI/CD pipelines, test automation, and monitoring

frameworks.

● Leverage AI-assisted tools (Claude, Cursor, etc.) to boost velocity and maintain

code quality.

● Participate in code reviews, design discussions, and architecture decisions.

● Write clean, maintainable code, follow design patterns, maintain high test

coverage, and document key technical decisions.

Requirements

● 6–10 years of full stack development experience with a proven track record in

production systems.

● Strong proficiency in React.js, JavaScript/TypeScript, Redux (or similar state

management) and modern frontend frameworks.

● Solid backend experience with Java, Spring Boot, and Hibernate.

● Database experience with MySQL, MongoDB, or ScyllaDB.

● Hands-on with microservices, AWS (ECS/Lambda), SQS, and GraphQL.

● Familiarity with event-driven architectures and caching layers (Redis) and

asynchronous processing.

● Working knowledge of observability tools (Prometheus, Grafana, CloudWatch,

Sentry).

● Understanding of data structures, algorithms, and system design

fundamentals.

● Passion for clean code, testability, and engineering excellence.

● Strong analytical and communication skills with the ability to collaborate across

Product, Design, and QA teams.

● Comfortable in a remote-first, asynchronous, and ownership-driven culture.

Nice to Have

● Experience with React Native or mobile web frameworks.

● Exposure to Kafka, Kinesis, or other event-streaming platforms.

● Familiarity with CI/CD (GitHub Actions, Docker) and container orchestration

(ECS).

● Experience with AI-assisted development, LLMs, or LangChain pipelines.

● Domain exposure to B2B platforms, travel-tech, or high-scale marketplaces.

● Background in Test-Driven Development (TDD) or Agile methodologies.

Why Join Us?

● Work on mission-critical, high-scale systems used by global hotel brands.

● Build real-time, low-latency products impacting millions of hotel transactions

daily.

● Be part of a remote-first, AI-accelerated engineering culture that values

autonomy and quality.

● Collaborate with senior engineers and architects solving complex distributed

system challenges.

● Competitive compensation with equity participation and career growth

opportunities.

● Learn and work with cutting-edge AI tools—from code generation to

observability automation.

Job Summary:

We are looking for a highly skilled MERN Stack Developer with at least 3 years of experience to join our team. As a Team Lead, you will be responsible for designing, developing, and optimizing web applications while mentoring junior developers. Strong communication skills and leadership abilities are essential for this role.

Key Responsibilities:

Full-Stack Development

• Develop, optimize, and maintain scalable applications using MongoDB, Express.js, React.js, and Node.js.
• Implement best coding practices, reusable components, and maintain high-performance applications.

Technical Leadership

• Lead a team of developers, conduct code reviews, and provide technical mentorship.
• Ensure the team follows best practices, development standards, and project timelines.

Backend & Database Management

• Design and implement RESTful APIs, GraphQL, and backend logic.
• Optimize MongoDB queries, indexing, and schema design for performance.

Frontend Development

• Develop interactive and responsive UI components using React.js, Redux, Next.js, or TypeScript.
• Ensure seamless user experience and cross-browser compatibility.

Collaboration & Deployment

• Work closely with UI/UX designers, product managers, and DevOps for smooth project execution.
• Manage CI/CD pipelines, cloud deployments (AWS, Firebase, Heroku), and ensure system security.

Requirements:

✔ 3 years of experience in MERN Stack development.

✔ Strong expertise in JavaScript, TypeScript (preferred), and modern frameworks.

✔ Experience leading teams, conducting code reviews, and mentoring junior developers.

✔ Knowledge of Docker, Kubernetes, CI/CD pipelines, and cloud platforms.

✔ Strong problem-solving skills and ability to troubleshoot performance issues.

✔ Excellent communication skills and ability to work in an Agile team environment.

Job Overview: We are seeking a skilled MERN Stack Developer responsible for designing and developing robust and scalable web applications. The ideal candidate will have a strong understanding of the entire web development process (design, development, and deployment) and be proficient in the MERN stack: MongoDB, Express.js, React.js, and Node.js.

Key Responsibilities:

• Full Stack Development: Design, develop, and deploy full-stack web applications using the MERN stack (MongoDB, Express.js, React.js, Node.js).
• API Development: Build RESTful APIs and integrate them with front-end components.
• Database Management: Design, manage, and optimize MongoDB databases for high-performance and scalability.
• UI/UX Collaboration: Work closely with UI/UX designers to implement responsive and user-friendly interfaces.
• Code Quality: Write clean, maintainable, and efficient code, following best practices and coding standards.
• Testing and Debugging: Perform unit testing, debugging, and integration testing to ensure the quality and functionality of the application.
• Version Control: Use Git for version control and collaborate with other developers on code management.
• Continuous Learning: Stay up-to-date with emerging technologies and best practices in web development and apply them to projects.

Required Skills and Qualifications:

• Proficiency in:
• React.js: Strong understanding of React.js and its core principles, including hooks, state management, and component lifecycle.
• Node.js & Express.js: In-depth knowledge of Node.js and Express.js for server-side development.
• MongoDB: Experience with MongoDB for database design, development, and optimization.
• JavaScript/ES6+: Proficiency in modern JavaScript (ES6+) and understanding of asynchronous programming.

About Us

Zentosys Solutions Pvt. Ltd. is a technology-driven IT services company specializing in modern web and mobile application development. We empower businesses worldwide with innovative, scalable, and efficient software solutions. Be a part of our dynamic team and contribute to building impactful digital products.

Responsibilities

• Develop, maintain, and optimize full-stack applications using modern technologies.
• Implement backend logic using Node.js, TypeScript, and frameworks like Express.js or NestJS.
• Build intuitive, responsive, and high-performance frontend applications using React.js, Next.js, or similar frameworks.
• Design and integrate RESTful APIs and ensure seamless communication between front-end and back-end systems.
• Utilize CI/CD pipelines for automated deployment and continuous integration.
• Manage and optimize cloud infrastructure using AWS services.
• Debug, troubleshoot, and ensure application reliability and performance across the stack.
• Design database schemas and manage MongoDB for efficient data handling.
• Collaborate with cross-functional teams, including DevOps, designers, and product managers, to deliver high-quality solutions.
• Stay updated with the latest technologies, frameworks, and best practices in software development.

Requirements

• Experience: 2+ years in full-stack development.
• Strong expertise in Node.js, TypeScript, and backend frameworks like Express.js, NestJS, or Fastify.
• Proficiency in frontend technologies like React.js, Next.js, HTML5, CSS3, and JavaScript (ES6+).
• Hands-on experience with CI/CD pipelines and tools such as Jenkins, GitHub Actions, GitLab CI, or similar.
• Practical knowledge of AWS services, including EC2, S3, RDS, Lambda, and IAM.
• Experience with database schema design and management using MongoDB.
• Strong problem-solving skills with a logical and analytical approach to challenges.
• Familiarity with Git for version control and collaboration in a team environment.
• Excellent communication and teamwork skills to contribute effectively in a collaborative setting.

Preferred Skills

• Exposure to GraphQL for API development.
• Knowledge of Docker and container orchestration.
• Familiarity with Serverless Framework for deploying cloud-native applications.
• Experience with testing frameworks like Jest, Mocha, or Cypress.
• Understanding of state management libraries like Redux, Zustand, or similar.
• Hands-on experience with Terraform or other infrastructure-as-code tools.

What We Value

• Problem Solvers: Professionals who can tackle challenges with creativity and precision.
• Team Players: Individuals who thrive in a collaborative, dynamic environment.
• Growth Mindset: Developers who are eager to learn, adapt, and grow with the organization.

What We Offer

• Competitive salary in the range of ₹6 LPA to ₹15 LPA based on skills and experience.
• Work on diverse and impactful projects for a global clientele.
• A culture that encourages innovation, professional growth, and skill enhancement.
• Flexible working hours and a healthy work-life balance.
• Exposure to cutting-edge technologies and tools.

Job Type: Full-time

Pay: ₹600,000.00 - ₹1,500,000.00 per year

Benefits:

• Provident Fund

Schedule:

• Monday to Friday

Education:

• Bachelor's (Required)

Experience:

• Full-stack development: 2 years (Required)

Work Location: In person

Expected Start Date: 05/02/2025

We are looking for a rock-star software engineer who can lead our tech efforts in building a scalable FinTech platform.

Who we are?
We are a funded Fintech company focused on the Affordable Housing segment based out of Gurugram.

Whom are we looking for?
We are looking for a software engineer to come on-board and own the technology and product development from the ground up and scale it as the business grows.

Tech Qualifications:

1. You have 2-4 years of experience building products from inception to scale.
2. You have built multitenancy B2B and B2C consumer products in the Fintech, Banking, Loan Products, Payments, and/or Digital Commerce space.
3. You have an uncanny ability to attract and retain strong tech talent.
4. You are highly ambitious and have a keen desire to make a large impact.

What do we offer?
A true experience of building scalable fintech business ground up. we also offer equity along with a fixed salary component.

Our Present Infrastructure:
Microservices based Multitenancy Application
ASP.NET core
Kubernetes Cluster
Redis distributed Caching
Aws Cloud Infrastructure
Our Mobile App is built using Angular and Android
RDBMS / NoSQL

Looking for a highly skilled MEAN Full-Stack Developer who is comfortable with both front and back end programming.
1+ years in MEAN ( MongoDB, ExpressJS, Angular, NodeJS ) full-stack development.

Responsibilities and Duties

• Design client-side and server-side architecture.
• Design, Develop, and manage well-functioning databases and applications.
• Designing and developing user interactions on web pages.
• Designing and developing APIs.

Required Experience, Skills and Qualifications

• Working experience in MEAN backend (MongoDB, ExpressJS, NodeJS) with very strong JavaScript.
• Thorough Understanding of Angular 8 / 9
• Hands-on experience with JavaScript Development on both client and server-side
• Knowledge on HTML5, CSS3, Bootstrapping, XML and other NoSQL databases like DynamoDB ( Preferred Skill of DynamoDB )
• knowledge on RDBMS like MySQL, SQL Server, etc.
• Distributed Technology Web Services (SOAP, RESTFUL)
• Strong experience in API development & integration, Database Design, third party libraries
• AWS Cloud framework (Serverless) and technologies experience.
• Familiarity with CI/CD for deploying the code.
• Familiarity with code versioning tools such as git along with knowledge about branching, code merging, and code review strategies.

Experience:

• NodeJS: 1 years (Required)
• MongoDB: 1 years (Required)
• Total Work: 1 years (Required)
• Angular ( 7 / 8 / 9 ) : 2 years (Required)

Job Type: Full-time

- Must have good hands-on experience on WordPress

- Should able to edit WordPress plugins

- Well versed with HTML, CSS, Java script, PHP

- experience in phpMyAdmin, MySQL, MariaDB

- SSO, oauth2 website integration will be added advantage

- Good communication skills, should able to demonstrate website features

- Good work ethics, professionalism, team player