
We are looking for a MERN Stack Developer with 2+ years of real-world experience who thinks beyond CRUD APIs and UI screens. This role is for someone who understands how full-stack systems are designed, cares about scalability, performance, security, and clean architecture, and takes ownership of features end-to-end.
We value ownership, speed, clean code, and smart problem-solving. If you enjoy building products from scratch, thinking in systems, and shipping meaningful features—not just “finishing tasks”—this role is for you.
🧠 Key Responsibilities
- Design, develop, and maintain full-stack applications using MongoDB, Express, React, and Node.js
- Build scalable and maintainable backend APIs with proper validation, error handling, and security
- Develop clean, reusable, and performant React components
- Design database schemas and optimize queries for performance and scalability
- Translate product and business requirements into solid technical solutions
- Design frontend and backend architecture that can scale as the product grows
- Handle authentication, authorization, roles, and permissions
- Work with async operations, background jobs, and API integrations
- Manage application state properly (React state, context, or state libraries)
- Handle edge cases: loading, failure states, retries, and fallbacks
- Write clean, readable, and well-structured JavaScript / TypeScript code
- Follow and continuously improve coding standards and best practices
- Debug production issues using logs, reasoning, and root-cause analysis
- Review PRs, give constructive feedback, and contribute to team learning
- Work with designers to deliver good UX, not just “working UI”
- Collaborate closely with QA, design, and product teams
- Think ahead—identify technical debt, performance bottlenecks, and improvement areas
- Use AI tools responsibly to speed up development, debugging, and learning (with understanding)
✅ Qualifications Must Have
- 2+ years of hands-on experience with the MERN stack
- Strong knowledge of JavaScript and TypeScript, including OOP concepts
- Solid experience with Node.js & Express
- Hands-on experience with MongoDB, schema design, indexing, and aggregation
- Experience building and consuming REST APIs
- Strong understanding of async/await, promises, event loop
- Knowledge of HTML, CSS, responsive design (Tailwind / Bootstrap preferred)
- Experience with React hooks, component lifecycle, and state management
- Use React performance optimizations such as: React.memo useCallback, useMemo
- Implement code splitting and lazy loading using dynamic imports
- Work on or understand micro-frontend architecture and module federation
- Experience handling authentication (JWT, sessions, OAuth)
- Familiarity with Git, code reviews, and basic CI/CD concepts
- Exposure to real production issues (performance, bugs, scaling, failures, debugging)
Good to Have (Big Plus)
- Knowledge of Next.js or server-side rendering concepts
- Experience with Redis, queues (kafka, rabbitmq), or background jobs
- Experience with Docker, cloud deployments, or Nginx
- Understanding of performance tuning and lazy loading
- Experience working in a startup or fast-paced environment
❌ Who Should Not Apply
Please do not apply if:
- You only focus on “closing tickets” without questioning why something is being built
- You lack strong JavaScript fundamentals (arrays, objects, async/await, promises, event loop)
- You mostly copy-paste code without understanding it
- You never think about edge cases, failures, retries, or resilience
- You depend heavily on others for architecture or technical direction
- You avoid responsibility and say things like:
- “Frontend issue”
- “Backend issue”
- “It was already like this”
- “QA didn’t catch it”
- You are not comfortable explaining your code, decisions, or design choices
- You expect exact step-by-step instructions for every task
- You are not interested in learning and improving as a full-stack engineer
👉 This role is not for task executors.
We want problem solvers, thinkers and owners.

About Saeculum Solutions Pvt Ltd
About
Saeculum Solutions Pvt Ltd is an emerging company and is always looking to hire fresh enthusiastic talents to join our growing team. We believe in delivering the best services to our clients and therefore we only hire talents who are all-rounders and who say “All-is-Well” to all projects. So, if you share the same passion and vision, join our team today..!
Tech stack
Candid answers by the company
- Web Application Development
- Mobile Application Development
- Hire Dedicated Developers
- Front-end Development
- SaaS Product Development
- UI / UX Design
- CMS Development
- QA & Software Testing
Photos
Similar jobs
Lead technical Consultant
Experience: 9-15 Years
This is a Backend-heavy Polyglot developer role - 80% Backend 20% Frontend
Backend
- 1st Primary Language - Java or Python or Go Or ROR or Rust
- 2nd Primary Language - one of the above or Node
The candidate should be experienced in atleast 2 backend tech stacks.
Frontend
- React or Angular
- HTML, CSS
The interview process would be quite complex and require depth of experience. The candidate should be hands-on in backend and frontend development (80-20)
The candidate should have experience with Unit testing, CI/CD, devops etc.
Good Communication skills is a must have.
We are looking for a highly skilled MERN Stack Developer who is passionate about building seamless user interfaces and robust backend systems. The ideal candidate will have strong expertise in ReactJS for UI development and hands-on experience in Node.js API development. You will play a crucial role in developing and maintaining scalable web applications using the MERN (MongoDB, Express.js, React.js, Node.js) stack.
Responsibilities:
- Frontend Development:
- Build responsive and dynamic user interfaces using ReactJS.
- Develop reusable components, UI libraries, and ensure excellent user experience.
- Optimize applications for maximum speed and scalability.
- Work with tools like Redux, React Hooks, and other state management libraries.
- Backend Development:
- Design and develop RESTful APIs using Node.js and Express.js.
- Build secure, scalable, and efficient server-side applications.
- Integrate third-party APIs and services when required.
- Database Management:
- Work with MongoDB to design and manage collections, queries, and indexes.
- Ensure smooth integration of database operations with the backend.
- Collaboration:
- Work closely with designers, project managers, and other developers to define project requirements and deliverables.
- Conduct code reviews and ensure clean, maintainable, and testable code.
- Testing and Deployment:
- Write unit tests and integration tests for both frontend and backend components.
- Deploy applications to cloud environments (AWS, GCP, or similar platforms).
Skills and Qualifications:
- Strong proficiency in ReactJS:
- Experience in creating dynamic and responsive UI components.
- Knowledge of modern React features such as Hooks, Context API, and functional components.
- Hands-on Node.js API Development:
- Strong experience in Express.js to build RESTful APIs.
- Understanding of asynchronous programming and event-driven architecture.
- Good knowledge of MongoDB:
- Hands-on experience with designing collections, writing queries, and data modeling.
- Proficient in JavaScript and ES6+:
- Strong understanding of modern JavaScript, including DOM manipulation.
- Familiarity with:
- State Management Libraries (e.g., Redux, MobX).
- Version Control (Git and GitHub).
- Frontend Tools like Webpack, Babel, and NPM/Yarn.
- API Integrations and tools like Postman or Swagger for testing APIs.
- Strong understanding of UI/UX design principles:
- Ability to work with design tools (e.g., Figma, Sketch, or Adobe XD) to bring designs to life.
- Problem-solving mindset and ability to write clean, efficient, and maintainable code.
Nice-to-Have Skills:
- Experience with TypeScript.
- Knowledge of GraphQL.
- Experience with containerization tools like Docker.
- Familiarity with deployment tools (CI/CD pipelines).
Experience:
- 0-2 years of experience as a MERN Stack Developer or relevant roles.
Benefits:
- Competitive salary based on experience.
- Opportunity to work on exciting and impactful projects.
- Collaborative and dynamic work environment.
- Career growth and learning opportunities.
Location: Mumbai
Experience Required: 2+ Years
Job Type: Full-Time
Notice Period: Immediate Joiners
About the Role
We are seeking a skilled and experienced Full Stack (MERN) Developer to join our product engineering team. The ideal candidate must have experience working in a product-based software development company and should have hands-on involvement in e-commerce platform projects.
Mandatory Criteria
- Candidate must be currently working or have prior experience in a product-based software development company
- Candidate must have worked on at least one e-commerce platform project (end-to-end involvement)
Key Responsibilities
- Develop and maintain scalable web applications using MongoDB, Express.js, React.js, and Node.js
- Translate UI/UX designs into high-quality front-end code
- Build and integrate RESTful APIs
- Ensure performance, quality, and responsiveness of applications
- Participate in design discussions, code reviews, and contribute to technical documentation
- Work in a collaborative, agile development environment
Required Skills
- Strong proficiency in JavaScript, React.js, Node.js, and Express.js
- Hands-on experience with MongoDB or other NoSQL databases
- Solid understanding of RESTful APIs and architectural patterns
- Knowledge of version control systems like Git
- Understanding of CI/CD and cloud-based deployment practices
- Good grasp of performance optimization, caching, and security practices
Essential Responsibilities:
- Demonstrate an understanding of the Agile software development life cycle and distinguish the core inputs and outputs in each cycle.
- Work closely with your peers and keep engaging in a fast pace technical design and development team
- Execute in a fast pace delivery mode and focus on delivering tasks to meet monthly and quarterly digital product release goals
- Lead impact assessment and decisions related to technology choices, design / architectural considerations and implementation strategy
- Maintain code quality through best practices, unit testing and code quality automation
- Demonstrate the ability to make informed technology choices after due diligence and impact assessment
- Help in designing interfaces and information exchange between modules
- Articulate the need for scalability and understand the importance of improving quality through testing.
- Be an expert in writing code that meets standards and delivers the desired functionality using the technology selected for the project
- Drive design reviews, define interfaces between code modules, and apply existing technology to designs
- Be an expert in assessing application performance and optimizing/improving it through design and best coding practices
Qualifications/Requirements:
- Minimum Bachelor's Degree in Computer Science, Computer Engineering or in "STEM" Majors (Science, Technology, Engineering, and Math)
- 6+ years of experience in Full Stack Software Development within the enterprise or software services domain
Desired Skills:
- Expertise in full stack software development and awareness of 12 Factor software patterns
- Experience and knowledge of patterns and anti-patterns of microservices-based architecture design
- Experience developing and deploying applications on cloud (Azure, AWS, or GCP), on-premise, and hybrid-based architectures
- Mid-Level to Expert within one or more of the following UI development JavaScript: Client-Side HTML5 jQuery, jQuery UI, Knockout.js,
- Polymer, AngularJS, ReactJS, Bootstrap
- Mid-Level to Expert within one or more of the back-end development languages: .NET, Java, Python, or Scala
- Very solid API skills (e.g. Express.js/Node.js, GraphQL/Relay, Flask, Jersey, Java Spring REST or WebApi2)
- Skilled in use of Java, Kafka, and Spark streaming technologies
- Experience with containerization technologies such as Rancher, Kubernetes, Docker and Helm
- Hands-on experience in data storage environments of many types (RDMS, NoSQL, HDFS, etc.)
- Knowledge of GitLab, Jenkins and Artifactory
- Solid foundation in data structures, algorithms, and OO Design with rock-solid programming skills
- Security: Identity Management and Access, application security and static code analysis
- Proven success working in and promoting a rapidly changing, collaborative, and iterative product development environment
- Strong interpersonal skills, analytical skills, combined with intellectual curiosity, and a desire and ability to "get things done" are essential
- Agile Scrum development experience
- Added advantage to those having experience in multi-tenant SaaS Platform and Developers' Portal development
String core PHP Hands-on experience.
Strong Expertise in CodeIgniter Framework.
Good Knowledge of PHP, MySQL, jQuery, Javascript, HTML5, CSS3, JSON
Sound knowledge of database designing and application architecture planning.
Good debugging skills.
A good understanding of asynchronous request handling, partial page updates, and AJAX will be preferred.
Basic UI Designing using Bootstrap and Jquery.
Node Js
Knowledge of Node.js and frameworks available for it, such as Express JS, Strong Loop, etc
Understanding the nature of asynchronous programming and Promises and its quirks and workarounds
Good understanding of server-side templating languages (such as Jade, EJS, etc depending on your technology stack)
Basic understanding of front-end technologies, such as HTML5, CSS3, and Bootstrap
Understanding accessibility and security compliance
User authentication and authorization between multiple systems(Internal or Third-party), servers, and environments
Integration of multiple data sources and databases into one system
Understanding fundamental design principles behind a scalable application
Proficient in code versioning tools, such as Git or TFS
Freeswitch, MYSQL
Good to have knowledge
Redis, Ubuntu, OpenSips, WebRTC
- Experience building applications using NodeJS and frameworks such as Express.
- Thorough understanding of React.js and NodeJS including its core principles.
- Ability to understand business requirements and translate them into technical requirements.
- Familiarity with code versioning tools (such as Git, SVN, and Mercurial).
- Understanding the nature of asynchronous programming and its quirks and workarounds
- Strong experience with MongoDB, Postgres
- Highly proficient with Vue.js framework and its core principles such as components, reactivity, and the virtual DOM
- Familiarity with the Vue.js ecosystem, including Vue CLI, Vuex, Vue Router
- Good understanding of HTML5 and CSS3, and Sass
- Understanding of server-side rendering and its benefits and use cases
What you will do:
- Leading the dev team for Floor.bz (virtual Event SAAS Platform Team)
- Planning, estimation, database designing, wireframing, layout designing of assigned project and other ongoing projects in team with Product Manager
- Handling coding works or major/ complex parts of assigned projects and providing coding help and supervision to team members
- Maintaining and auditing code/ design quality as per set guidelines and standards in assigned projects
- Testing of completed tasks in ongoing projects in team before sending updates to reporting authority/client
- Removing the technical impediments
- Focusing the team to ensure an on-time delivery of the agreed task
- Reporting progress to the Product Manager
- Facilitating code/ design reuse
- Training and mentoring of team members
- Maintaining skill set matrix of the team
Desired Candidate Profile
What you need to have:- 3+ Years development skills in UI /UX Frontend / Backend Knowledge
- Expertise in JS/ React Js/ Api’s
- Excellent programming and logical skills
- Knowledge on Angular Js/ Vue Js
- Excellent knowledge of HTML5, CSS3, PHP, MySQL
- Excellent knowledge of Javascript, Jquery
- Excellent knowledge of OOP programming style and Event Driven Architecture
- Knowledge of version control systems like GIT is also required
- Experience in building sites to function cross-platform and cross-browser
- Exposure of managing a team of at least 2-4 software developers
- In-depth understanding of the entire web development process (design, development and deployment)
- Willingness to build career in SAAS/ Video Tech Domain
Job description
Please connect me on Linkedin Shrashti jain or DM me for sharing resume.
immediate Joiner for Mern & Full Stack Developer needed
Must have working experience in ReactJS, NodeJS,
React JS framework Laravel.
Experience in Javascript, Mongo DB ( Full Stack Developer) & Mobile App Development
Experience : 1 years to 5 years
Notice Period : 30 days (or) less
Shift : MidShift
Work Location : Jaipur,Noida(Remote), Permanent Remote
Work Type : Permanent
Software development experience in React, Node (Mern Stack / Full Stack) & Mobile App Development) Framework Laravel
(MongoDB, Express, ReactJS, NodeJS)
Must have 2+years experience in React js.
Knowledge of object oriented PHP programming
Familiarity with SQL databases and their query languages
Experience in developing with front-end web technologies (JavaScript, HTML, CSS)
Knowledge of the common PHP or web server exploits and their solutions















