Senior Mern Stack Developer

Job Summary

We are looking for a Technical Lead with strong expertise in AWS, Node.js, Angular, and MongoDB to drive the design, development, and deployment of scalable applications. The ideal candidate will be responsible for leading a team of developers, defining best practices, and ensuring high-quality code delivery while working in an agile environment.

Key Responsibilities

• Lead the end-to-end development of web applications using Node.js, Angular, and MongoDB.
• Architect scalable, secure, and high-performance cloud-based applications on AWS.
• Provide technical guidance, code reviews, and mentorship to the development team.
• Optimize backend APIs and database queries for performance and scalability.
• Ensure best practices in coding, security, and DevOps for cloud deployment.
• Collaborate with cross-functional teams including UX/UI designers, product managers, and DevOps engineers.
• Implement CI/CD pipelines, automated testing, and infrastructure as code on AWS.
• Troubleshoot production issues and drive continuous improvement in system reliability.
• Stay updated with emerging technologies and advocate for relevant tech adoption.

Required Skills & Experience

• 4+ years of hands-on experience in software development.
• Strong proficiency in Node.js (Fastify/Express), Angular (latest versions), and MongoDB (Mongoose, Aggregations, Indexing).
• Cloud expertise with AWS services like EC2, S3, Lambda, API Gateway, ECS, Code Build, Athena, Glue etc.
• Experience with Microservices Architecture.
• Strong knowledge of RESTful APIs, WebSockets, GraphQL, and authentication mechanisms (OAuth, JWT, SSO).
• Experience with DevOps & CI/CD tools (GitHub Actions, Jenkins, Terraform, Ansible).
• Hands-on experience with performance tuning, caching strategies (Redis, CloudFront), and database optimisation.
• Strong problem-solving, leadership, and communication skills.

Good to Have

• Experience with AI/ML integration in applications.
• Knowledge of Serverless Architectures (AWS Lambda, Step Functions).
• Exposure to NoSQL databases like Elasticsearch.
• Familiarity with GraphQL, WebRTC, or real-time data processing.

Why Join Us?

• Work on cutting-edge technologies in a fast-paced environment.
• Opportunity to lead a strong technical team and shape the product architecture.
• Competitive salary and benefits package.
• A culture that values innovation, ownership, and growth.

Design and develop scalable web applications using MEAN/MERN stack.

Build & optimize AI/LLM workflows using LangChain or LangGraph.

Implement vector storage & semantic search using FAISS / Pinecone / Chroma / Milvus.

Build APIs, microservices, and integration layers.

Optimize application performance and ensure code quality.

Collaborate with cross-functional teams (product, design, backend, DevOps).

Must-Have Skills

• Strong experience in Node.js, Express.js, MongoDB, and Angular/React.
• Hands-on experience in LLM apps, RAG pipelines, Vector Databases.
• Practical knowledge of LangChain / LangGraph.
• Experience with REST APIs, authentication, and integrations.
• Solid understanding of Git, CI/CD, and cloud platforms (AWS/Azure/GCP).

About the Role :

We are seeking a highly skilled Lead Software Developer with a strong background in SaaS product development and expertise in designing scalable, secure, and resilient systems. You will lead the technical architecture of our cloud-native platforms, manage cross-functional

engineering efforts, and implement best practices across backend, frontend, and infrastructure layers.

This is a leadership role based on-site in Jaipur and ideal for someone who enjoys solving complex system challenges and building high-impact software.

Key Responsibilities:

● Lead the design and implementation of scalable SaaS application architecture

● Architect and develop solutions using Laravel, NestJS, Node.js, and AWS

● Build and manage microservices and serverless infrastructure for high availability and maintainability

● Implement and manage asynchronous and parallel request handling for optimized system performance

● Design and scale load handling and queue management systems using BullMQ and Redis

● Develop and integrate real-time data workflows using webhooks and external APIs

● Configure and manage Node.js clusters for performance and fault tolerance

● Collaborate with frontend developers working on React and Vue.js to deliver seamless UI/backend integration

● Ensure code quality, observability, and maintainability across services

● Monitor, debug, and resolve issues in production using logs and performance tracking tools

● Drive CI/CD implementation, infrastructure automation, and DevOps practices

Required Skills & Qualifications:

● 5 - 7 years of experience in full-stack or backend software development

● Proven experience as a Lead Developer on SaaS products

● Proficient in Laravel, NestJS, and Node.js

● Deep understanding of BullMQ, Redis, and message/queue-based architectures

● Experience with asynchronous processing, parallel request handling, and load distribution

● Proficient in microservices and serverless architecture patterns

● Strong command of AWS (EC2, Lambda, RDS, S3, API Gateway, IAM, CloudWatch)

● Hands-on experience with webhooks, job queues, background tasks, and rate-limiting strategies

● Familiarity with Node.js cluster mode and scaling strategies

● Solid experience in debugging, tracing, and performance monitoring

● Frontend integration experience with React or Vue.js (please specify your exposure)

● Strong leadership, collaboration, and mentoring abilities

Preferred Skills (Nice to Have):

● Experience with Docker, Kubernetes, and CI/CD pipelines

● Exposure to event-driven architecture and multi-tenant SaaS platforms

● Familiarity with observability tools such as Grafana, Datadog, or New Relic

Dear Applicants

We are looking for a person to join our team and take an active role in building up Software products for our customers. The Candidate must have at least 3 years of experience in product development. Our ideal candidate should have experience in standalone long-term product development with MERN stack, team-leading skills, and the ability to scale the product functionalities to achieve the organization's goals.

Job Description

As a Senior Product Developer at Certcube, you will play a crucial role in developing and enhancing our in-house products. Your experience in Express JS, React JS, TypeScript, Visualization libraries, REST/ GraphQL API, and Generate AI will be invaluable in shaping the future of our product offerings. 

Responsibilities

• Collaborate with product managers, designers, and front-end developers to understand product requirements and translate them into technical specifications.
• Develop and maintain products using Express, React, Node.js, and REST / GraphQL, ensuring high performance, scalability, and security.
• Implement Data visualizations and data analytics capabilities for better visibility of data with MERN technologies.
• Design and implement APIs for seamless communication between frontend and backend components.
• Implement Authentication and seamless authorization capabilities using the MERN stack. 
• Manage and maintain backend databases like Mongo DB, and PostgreSQL.
• Integrate AI and machine learning capabilities into our cybersecurity products using predictive algorithms. 
• Ensure the security of our products by implementing best practices and staying up-to-date with the latest cybersecurity trends.
• Perform code reviews, identify and fix bugs, and optimize application performance.
• Participate in the development of product roadmaps, making technical recommendations, and contributing to feature planning.
• Mentor and guide junior developers, fostering a collaborative and innovative development environment.

Qualifications and Skillset

• Bachelor’s or Master’s degree in Computer Science, Software Engineering, or a related field.
• 3 years of professional experience in backend development, with a strong focus on React JS, TypeScript, Node, and Express framework.
• Proven expertise in GraphQL and experience with Generate AI or other AI/ML frameworks.
• Prior experience as a product developer in the cybersecurity domain is highly desirable.
• Strong knowledge of cybersecurity concepts and best practices.
• Proficiency in database design and management Excellent problem-solving skills and the ability to work independently and in a team.
• Strong communication skills, both written and verbal.
• Certifications in relevant technologies or cybersecurity are advantageous.

Benefits

• The chance to make a meaningful impact by contributing to the development of cybersecurity products that protect data and systems.
• Potential for career advancement within the company, including promotions to higher-level development or leadership roles.
• An inclusive and positive company culture that fosters collaboration and innovation.

Job Type: Full-time (In office)

Start Date: Immediate

Documents Requirement- Last job relieving letter, ID Proof, Last job offer letter, Updated CV, Last qualification certificate

👋🏼We're Nagarro.

We are a Digital Product Engineering company that is scaling in a big way! We build products, services, and experiences that inspire, excite, and delight. We work at scale across all devices and digital mediums, and our people exist everywhere in the world (19000+ experts across 33 countries, to be exact). Our work culture is dynamic and non-hierarchical. We are looking for great new colleagues. That is where you come in!

REQUIREMENTS:

• Experience: 5.5-8.5 years
• Must Have: Design patterns (Expert), Game Development - General Experience, HTML5 (Expert), JavaScript (Expert), PixiJS
• Skills: ReactJS + HTML + CSS + ReactMaterialUI - Frontend developer with hands on experience in React JS Or Angular.
• Must has prior experience in developing microservices for customer facing channels. - Implementing pixel perfect design of components.
• Candidate should have good knowledge of working with React JS, NodeJS, advanced JavaScript, HTML5, CSS3,Mongo DB,
• Component-based frontend architecture along with how to design components in a way so that they can handle a big dataset.
• Unit testing, Code review and CI/CD process and flow.
• Knowledge of GitHub - Should have worked with tools like webpack.
• Code review tools like TSlint, Jslint, React-and, Redux-forms, super-agent is added advantage. Expectation: Spends 100% of time in implementing front end for all user stories.

RESPONSIBILITIES:

• Writing and reviewing great quality code
• Understanding functional requirements thoroughly and analysing the client’s needs in the context of the project.
• Envisioning the overall solution for defined functional and non-functional requirements, and being able to define technologies, patterns, and frameworks to realize it.
• Determining and implementing design methodologies and tool sets
• Enabling application development by coordinating requirements, schedules, and activities.
• Being able to lead/support UAT and production roll outs.
• Creating, understanding, and validating WBS and estimated effort for given module/task, and being able to justify it.
• Addressing issues promptly, responding positively to setbacks and challenges with a mindset of continuous improvement
• Giving constructive feedback to the team members and setting clear expectations.
• Helping the team in troubleshooting and resolving of complex bugs
• Coming up with solutions to any issue that is raised during code/design review and being able to justify the decision taken.
• Carrying out POCs to make sure that suggested design/technologies meet the requirements.

We are looking for a motivated full-stack engineer who is proficient in both front-end and back-end technologies. Responsibilities include designing, building, and maintaining web applications, databases, and APIs that enable businesses to operate efficiently.

Responsibilities

• Develop, test, and deploy fast and scalable web apps.
• Designing and maintenance of fully functional large relational and non-relational databases.
• Timely deployment of web apps on the cloud.
• Server management and cloud-based infrastructure.
• Establishment and integration of development tools as required.
• Conducting code reviews of peer developers.

Requirements

• 2 years in MEAN Stack Development.
• Expertise in technologies - MongoDB, ExpressJS, and NodeJS.
• High-quality programming skills for a robust design.
• Experience in application architecture, server management, cross-browser compatibility, responsive design, and website performance.
• Understanding of DB architecture design and programming templates, Agile methodologies, and client-side and server-side procedures.
• BE/ B. Tech/ MCA.

Responsibilities

• Strong knowledge of MERN stack (MongoDB, Express JS, React JS, Node JS, HTML5, CSS3, jQuery, Bootstrap, SASS)
• Develop user interfaces for modern rich internet applications with the latest front-end technologies
• Developing features to enhance the user experience.
• Should have excellent in-depth knowledge on Nodejs and MongoDB
• Hands-on experience working with Object-Oriented JavaScript (OOJS), JavaScript libraries and their practical uses in building complex interactive experiences
• Building reusable code for future use
• Writing tested code and its documention

• 1+ years of experience in front end development and backend development is must
• Thorough knowledge of HTML5, CSS3 (LESS/SASS),React, Nodejs and Mongodb
• Solid understanding of JavaScript and the ability to pick up any framework quickly
• Strong Experience in back-end frameworks used to develop dynamic web pages (REST, GraphQL, WebSocket/socket.io)
• Expertise in developing and testing across multiple browsers, platforms, DOM implementations, etc.
• Strong experience in React, React Hooks, Redux, Thunk | Saga, ES6, Typescript, ESLint, Nodejs, GraphQL, Redis, AWS, Git, Github, Docker

Bonus but not mandatory

• UI/UX designs
• AWS
• Git
• CI/CD

What you need to have: