MEAN/MERN Stack Developer

Job Description:

Technical Lead – Full Stack

Experience: 8–12 years (Strong candidates Java 50% - React 50%)

Location – Bangalore/Hyderabad

Interview Levels – 3 Rounds

Tech Stack: Java, Spring Boot, Microservices, React, SQL

Focus: Hands-on coding, solution design, team leadership, delivery ownership

Must-Have Skills (Depth)

Java (8+): Streams, concurrency, collections, JVM internals (GC), exception handling.

Spring Boot: Security, Actuator, Data/JPA, Feign/RestTemplate, validation, profiles, configuration management.

Microservices: API design, service discovery, resilience patterns (Hystrix/Resilience4j), messaging (Kafka/RabbitMQ) optional.

React: Hooks, component lifecycle, state management, error boundaries, testing (Jest/RTL).

SQL: Joins, aggregations, indexing, query optimization, transaction isolation, schema design.

Testing: JUnit/Mockito for backend; Jest/RTL/Cypress for frontend.

DevOps: Git, CI/CD, containers (Docker), familiarity with deployment environments.

A niche, specialist position in an interdisciplinary team focused on end-to-end solutions. Nature of projects range from proof-of-concept innovative applications, parallel implementations per end user requests, scaling up and continuous monitoring for improvements. Majority of the projects will be focused on providing automation solutions via both custom solutions and adapting machine learning generic standards to specific use cases/domains.

Clientele includes major publishers from the US and Europe, pharmaceutical bigwigs and government funded projects.

As a Senior Fullstack Developer, you will be responsible for designing, building, and maintaining scalable and performant web applications using modern technologies. You will work with cutting-edge tools and cloud infrastructure (primarily Google Cloud) and implement robust back-end services with React JS with Typescript, Koa.js, MongoDB, and Redis, while ensuring reliable and efficient monitoring with OpenTelemetry and logging with Bunyan. Your expertise in CI/CD pipelines and modern testing frameworks will be key to maintaining a smooth and efficient software development lifecycle.

Key Responsibilities:

• Fullstack Development: Design, develop, and maintain web applications using JavaScript (Node.js for back-end and React.js with Typescript for front-end).
• Cloud Infrastructure: Leverage Google Cloud services (like Compute Engine, Cloud Storage, Pub/Sub, etc.) to build scalable and resilient cloud solutions.
• API Development: Implement RESTful APIs and microservices with Koa.js, ensuring high performance, security, and scalability.
• Database Management: Manage MongoDB databases for storing and retrieving application data, and use Redis for caching and session management.
• Logging and Monitoring: Utilize Bunyan for structured logging and OpenTelemetry for distributed tracing and monitoring to ensure system health and performance.
• CI/CD: Design, implement, and maintain efficient CI/CD pipelines for continuous integration and deployment, ensuring fast and reliable code delivery.
• Testing & Quality Assurance: Write unit and integration tests using Jest, Mocha, and React Testing Library to ensure code reliability and maintainability.
• Collaboration: Work closely with front-end and back-end engineers to deliver high-quality software solutions, following agile development practices.
• Optimization & Scaling: Identify performance bottlenecks, troubleshoot production issues, and scale the system as needed.
• Code Reviews & Mentorship: Conduct peer code reviews, share best practices, and mentor junior developers to improve team efficiency and code quality.

Must-Have Skills:

• Google Cloud (GCP): Hands-on experience with various Google Cloud services (Compute Engine, Cloud Storage, Pub/Sub, Firestore, etc.) for building scalable applications.
• React.js: Strong experience in building modern, responsive user interfaces with React.js and Typescript
• Koa.js: Strong experience in building web servers and APIs with Koa.js.
• MongoDB & Redis: Proficiency in working with MongoDB (NoSQL databases) and Redis for caching and session management.
• Bunyan: Experience using Bunyan for structured logging and tracking application events.
• OpenTelemetry Ecosystem: Hands-on experience with the OpenTelemetry ecosystem for monitoring and distributed tracing.
• CI/CD: Proficient in setting up CI/CD pipelines using tools like CircleCI, Jenkins, or GitLab CI.
• Testing Frameworks: Solid understanding and experience with Jest, Mocha, and React Testing Library for testing both back-end and front-end applications.
• JavaScript & Node.js: Strong proficiency in JavaScript (ES6+), and experience working with Node.js for back-end services.

Desired Skills & Experience:

• Experience with other cloud platforms (AWS, Azure).
• Familiarity with containerization and orchestration tools like Docker and Kubernetes.
• Experience working with TypeScript.
• Knowledge of other logging and monitoring tools.
• Familiarity with agile methodologies and project management tools (JIRA, Trello, etc.).

Qualifications:

• Bachelor's or Master's degree in Computer Science, Engineering, or a related field.
• 5-10 years of hands-on experience as a Fullstack Developer.
• Strong problem-solving skills and ability to debug complex systems.
• Excellent communication skills and ability to work in a team-oriented, collaborative environment.

Overview:  Looking for experienced Senior Developers to work on a cross-functional team to solve real-world problems for healthcare providers around United States of America.

They will be required to use their expertise to design, build, test, and improve the features that will enable our customers to effectively run their business and provide patient care. We are looking for ideal candidates who like solving tough problems, enjoys being part of a fun team, and are tenacious.

Requirements:

• Fluent English Required, and able to provide well-articulated and reasoned explanations for when and why to apply software design patterns.

• Experience of 3 to 5 years developing using MEAN Stack

• Strong development experience using Node.JS, Express, Angularjs and Mongodb

• Experience in UX, CSS, LESS/SASS, Git, Gulp

• Agile development background is required

• Test Driven Development experience

• Cloud deployment experience is preferred, working with Google, AWS, Jenkins, Docker

●       Deep knowledge and hands-on experience of Java & UI stack.

●       Proficient experience of web technologies, frameworks and tools like HTML, CSS, JavaScript, React, NodeJS, XML, jQuery, Spring, etc.

●       Should be well versed with State Management, Redux, Reducers, Java Script, CSS in ReactJS/UI

●       Practical experience of test-driven development and constant refactoring in continuous integration environment.

●       Experience in Oracle PL/SQL programming is required, knowledge of SQL and relational databases

●       Experience working in an agile team, practicing Scrum, Kanban, or XP

●       Experience of performing Functional Analysis is highly desirable.

●       Excellent communication and teamwork skills.

People skills:

●       End to end ownership in driving team towards delivery.

●       Performance and productivity orientation to promote high-quality results.

●       Profound analytical skills and problem-solving abilities.

●       Good communication and excellent interpersonal skills.

●       Pro-active and flexible working approach.

●       Ability to think outside the box to resolve problems.

●       Efficient and well organized, detail oriented.

The ideal candidate is a self-motivated, multi-tasker, and demonstrated team-player. You will be a lead developer responsible for the development of new software products and enhancements to existing products. You should excel in working with large-scale applications and frameworks and have outstanding communication and leadership skills. 

Responsibilities

• Writing clean, high-quality, high-performance, maintainable code
• Develop and support software including applications, database integration, interfaces, and new functionality enhancements
• Coordinate cross-functionally to insure project meets business objectives and compliance standards
• Support test and deployment of new products and features
• Participate in code reviews
• Technical Lead experience exploring other open source frameworks and technologies and integrating with project

Qualifications

• 5+ years of development experience at least two or more of the following languages (Python, Ruby, javascript and Java)
• Expertise in object oriented design and design patterns
• Experience releasing highly scalable enterprise products full lifecycle
• Experience mentoring and training others on complex technical issues
• Experience with implementing algorithms to solve complex real world problems
• Solid coding practices including good design documentation, unit testing, peer code reviews
• Excellent verbal and written communication
• A proven ability to learn and adapt to new, complex development environments with deep dive analytical skills
• Strong object-oriented programming skills, knowledge of design patterns, and an uncanny ability to design intuitive module and class-level interfaces
• Experience in algorithm design and problem solving
• Experience leading small teams of engineers
• Experience with technologies like MongoDB, DynamoDB is highly desirable
• Experience developing full stack web applications using Perl, Java, Python or PHP
• Experience in any of the top JavaScript MVC frameworks, like Backbone, Angular, Ember, Spine or Knockout
• Passion for creating efficient, scalable, highly usable web interfaces
• Candidates from  Product Start-up companies would be highly preferred.

Job responsibility:

• Hire and mentor a team of high-calibre front-end and Backend engineers
• Design and develop new user-facing full-stack applications.
• Building reusable components and front-end, backend libraries for future use
• Optimizing pages for maximum performance across a vast array of web-capable devices and browsers
• Optimize Backend to high scale.

Skills and Experiences:

• 6+ years of experience in software development with minimum 1 year as a tech lead.
• Experience in NodeJS, ReactJS, PostgreSQL, Redis, AWS.
• Deep understanding of at least one of React JS / Vue JS and its core principles
• Deep understanding of NodeJS.
• Experience with common front-end development tools such as babel, webpack, npm
• Familiarity with at least one code versioning tools such as Git, SVN etc.
• Good understanding of quality JavaScript code (Object oriented and commonly used design patterns)
• Capable of debugging complex issues in JavaScript
• Experience in building complex single page applications with front end and backend.
• Experience with production full stack environment debugging and DevOps experience.
• Familiarity with RESTful APIs
• Hands on coding experience.

Good to have:

• Advanced knowledge of HTML5, CSS3 and responsive web development.
• Experience with writing unit test cases with JS frameworks.
• Experience with high scalable applications.

Graphene is an award-winning AI company, developing customized insights and data solutions for corporate clients. With a focus on healthcare, consumer goods and financial services, our proprietary AI platform is disrupting market research with an approach that allows us to get into the mind of customers to a degree unprecedented in traditional market research.

Graphene was founded by corporate leaders from Microsoft and P&G and works closely with the Singapore Government & universities in creating cutting edge technology. We are gaining traction with many Fortune 500 companies globally.

Graphene has a 6-year track record of delivering financially sustainable growth and is one of the few start-ups which are self-funded, yet profitable and debt free.

We already have a strong bench strength of leaders in place. Now, we are looking to groom more talents for our expansion into the US. Join us and take both our growths to the next level!

• Primary Purpose: As part of a highly productive and creative AI (NLP) analytics team, design and develop web applications and SPA’s i.e., UI/UX, and underlying backend – API’s, security framework, scalable microservices etc.
• Daily Grind: Interface with the product manager, project managers, and the engineering team to achieve sprint goals on the product roadmap.
• Career Progression: Senior Full Stack Engineer, Technical Architect

• Work in a product-development team capable of independently authoring software products.
• Guide junior programmers, set up the architecture, and follow modular development approaches.
• Design and develop code which is well documented.
• Optimize of the application for maximum speed and scalability
• Adhere to the best Information security and Devops practices.
• Research and develop new approaches to problems.
• Design and implement schemas and databases with respect to the AI application
• Cross-pollinated with other teams.

HARD AND SOFT SKILLS

Must Have

• Problem-solving abilities
• Extremely strong programming background – data structures and algorithm
• Angular/React, Strong UI/UX skills
• Very strong python background, TDD, CI/CD,
• Software design skills i.e., OOPs, design patterns
• SQL, NoSQL – design of schemas and databases
• Microservices architecture, Cloud native apps

Good to Have

• Enterprise Design Patterns
• Distributed Systems
• Exposure to ML and Data Science
• Docker, Kubernetes, AKS, Kafka, Graph databases

About https://validateme.online/">ValidateMe Online:

The ValidateMe Online platform enables the users to securely store and share their employment, educational and personal documents. ValidateMe uses blockchain technology to maintain the privacy of the documents and ensures that only the owners have the authority to view or share the documents. It acts as a common platform for users and organizations, educational institutes and universities to complete the background process seamlessly and quickly.

What You Will Do

• Lead the delivery of high quality, innovative, flexible, and scalable technical solutions that meet business requirements
• Perform hands-on development and provide thoughtful code reviews
• Mentor and lead development team members to continuously improve quality and productivity to achieve business results
• Design, develop, test and support applications and services using React, NodeJS, mongoDB, blockchain and others.
• Engage in requirements analysis and product engineering discussions, leading to delivery of high-quality user stories and acceptance criteria.
• Conduct Proof of Concepts for testing business ideas.
• Recommend ways to improve reliability, maintenance, efficiency, and quality.
• Follow SCRUM Agile Development methodology
  
  

What You Will Need

• 6+ years of relevant experience
• Advanced knowledge of software development methodology, techniques & standards.
• Strong understanding of software design concepts, patterns, tools and best practices.
• Must have full stack experience using NodeJS, React and NoSQL Databases.
• Must have worked on at least one cloud platform.
• Should have built and used a REST API.
• Experience with mongoDB is a plus.
• Experience with blockchain technology is a plus.
• Background building container using docker and deploying using Kubernetes is a plus.
  
  

Who You Are?

• One with excellent communication and prioritization skills.
• Owns success – Takes responsibility for the successful delivery of the solutions.
• Strong desire to improve upon one’s skills in software development, frameworks and technologies

What We Offer

• Limitless growth and learning opportunities.
• A collaborative and positive culture — Your team will be as smart and driven as you.
• Outstanding compensation, including attractive Employee Stock Options.
• A chance to make an impact — Your work will contribute directly to our strategy.