



We are seeking a highly skilled Team Lead – MERN Stack Developer to lead the development and delivery of scalable, maintainable, and high-performance applications using MongoDB, Express.js, React.js, and Node.js. The ideal candidate will have strong technical expertise, leadership skills, and a passion for building innovative solutions. If you have experience in microservices, micro-frontends, message queues, Redis, CI/CD, and best practices for large-scale applications, we’d love to have you on our team.
Key Responsibilities
Technical Leadership & Team Management
- Lead and mentor a team of developers, ensuring smooth collaboration, technical growth, and high-quality deliverables.
- Assign tasks, set priorities, track progress, and ensure project deadlines are met.
- Conduct code reviews to maintain coding standards, ensure maintainability, and improve code quality.
- Promote a culture of innovation, continuous learning, and problem-solving.
- Architect and implement microservices, micro-frontends, and modular micro-apps for scalable and maintainable solutions.
- Collaborate with stakeholders to translate business requirements into technical designs and implementation plans.
- Optimize performance and scalability for large-scale applications with dynamic data flows.
Backend Development (Node.js & Express.js)
- Design and implement secure, scalable backend structures and APIs.
- Develop reusable tools and libraries to support a microservices architecture.
- Handle error management and debugging for seamless application functionality.
- Work with message queues like RabbitMQ, Kafka, or Redis for event-driven communication.
- Use tools like New Relic or Prometheus to monitor and debug production systems.
- Solve challenging technical problems with smart, scalable solutions.
Database Management (MongoDB)
- Design efficient and scalable database schemas for large-scale projects.
- Optimize database performance using indexing, aggregation, and advanced querying techniques.
- Leverage MongoDB features like sharding and replication to handle large datasets efficiently.
Frontend Development (React.js & JavaScript)
- Build and optimize reusable, high-performance React.js components and dynamic user interfaces.
- Develop robust solutions for complex UI interactions, including drag-and-drop functionality.
- Implement efficient state management using Redux, Context API, or React Query.
- Optimize web performance, including DOM manipulation, memory management, and responsiveness.
- Ensure applications adhere to WCAG accessibility standards and provide excellent user experiences.
Best Practices & Continuous Improvement
- Define and enforce coding standards, workflows, and best practices for high-quality development.
- Develop and maintain CI/CD pipelines for automated testing and deployment.
- Write secure and robust code to protect against vulnerabilities like XSS and CSRF.
- Regularly monitor and optimize application performance, security, and scalability.
- Stay updated on the latest trends in MERN stack technologies and software development practices.
- Collaborate with DevOps teams for containerized deployments using Docker and Kubernetes.

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
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Similar jobs
We are inviting a Fullstack Engineer to join our dynamic product team at BrandLabs. If you’re passionate about building end-to-end web applications and enjoy working across the stack, we’d love to connect!
Key Responsibilities:
- Develop, deploy, and maintain web applications using NextJS, Typescript, NodeJS, NestJS, and ExpressJS.
- Collaborate with the product, design, and backend teams to deliver seamless user experiences.
- Write clean, maintainable, and scalable code following industry best practices.
- Participate in technical discussions, code reviews, and architectural planning.
- Integrate third-party services, APIs, and tools where required.
- Ensure application performance, security, and responsiveness.
Required Skills:
- 1-2 years of hands-on experience in fullstack development.
- Strong proficiency in NextJS, Typescript, NodeJS, NestJS, and ExpressJS.
- Good understanding of RESTful APIs and microservice architecture.
- Ability to troubleshoot, debug, and optimize applications for performance.
Good to Have:
- Experience building n8n workflows for automation.
- Exposure to AI/ML-based projects or AI service integrations.
- Familiarity with DevOps, CI/CD pipelines, and cloud platforms.
Additional Information:
- Location: We prefer candidates based in or around Thane, Mumbai for better collaboration.
Project Links: Please share your GitHub, portfolio, or links to live projects you’ve contributed to.


The requirements are as follows:
1) Familiar with the the Django REST API Framework.
2) Experience with the FAST API framework will be a plus
3) Strong grasp of basic python programming concepts ( We do ask a lot of questions on this on our interviews :) )
4) Experience with databases like MongoDB , Postgres , Elasticsearch , REDIS will be a plus
5) Experience with any ML library will be a plus.
6) Familiarity with using git , writing unit test cases for all code written and CI/CD concepts will be a plus as well.
7) Familiar with basic code patterns like MVC.
8) Grasp on basic data structures.
You can contact me on nine three one six one two zero one three two

Roles & Responsibilities
- You will be a key member in building modern web application platforms.
- Building user interfaces for management products
- Creating wireframes, prototypes based on the requirements.
- Building api for UI backend.
- Provide assistance in the up-gradation and maintenance of web applications.
Job Requirements
- 3 to 5 years of web development experience is required.
- Hands-on experience with api and microservice development.
- Proficiency with fundamental front-end languages such as JavaScript, HTML, CSS.
- Proficiency with JavaScript frameworks such as ReactJs.
- Proficiency with server-side languages such as NodeJs, Java, GoLang, etc.
- Exposure to wireframing and prototyping.
- Familiarity with database technology such as MongoDB.
- Good to have:
- Experience in UX design.
- Working experience on Linux environments.
- Working experience on Docker and Kubernetes.
- Working experience in microservices.
- Knowledge of the networking domain.


Responsibilities:
● Work with development teams and product managers to ideate software solutions.
● Design user-side and server-side architecture.
● Build the front-end of applications through appealing visual design.
● Develop and manage well-functioning databases and applications on MYSQL.
● Write effective APIs.
● Test software to ensure responsiveness and efficiency.
● Troubleshoot, debug and upgrade software.
● Create security and data protection settings.
● Build features and applications with a mobile responsive design.
● Write technical documentation.
Requirements:
● Proven experience as a Full Stack Developer or similar role.
● Experience developing web and mobile applications. ● Knowledge of multiple front-end languages and libraries (e.g. HTML/ CSS, JavaScript).
● Knowledge of back-end language(Node.js) and JavaScript frameworks (Angular, React, Vue but preferably React).
● Familiarity with MySQL databases, web servers (e.g. Apache) and UI/UX design.
● Excellent communication and teamwork skills.
● Great attention to detail Organizational skills. The knowledge of following, will fetch you brownie points during interviews:
● Ruby on Rails.
● Familiarity with AWS.
● Familiarity with Docker


Skills: React JS/Next JS, NodeJs, ExpressJs,JavaScript, Typescript, Restful/SOAP web servicesMongo DB(NoSQL/SQL)database technologies.
Experience preferred:
● You have a strong passion for start-ups and the proactiveness to deliver
● You have hands-on experience building services using NodeJs, ExpressJs technologies
● You have hands-on experience of MongoDB (NoSQL/SQL) database technologies.
● You are good at web technologies like React JS/Next JS, JavaScript, Typescript
● You are good at web technologies like Restful/SOAP web services
● You are good at caching and third-party integration
● You are strong on debugging and troubleshooting skills
● If you have Knowledge of Python, Chrome extension & DevOps development is a plus.
● You must be proficient in building scalable backend infrastructure software or distributed systems with exposure to Front-end and backend libraries/frameworks.
● Experience with Databases and micro services architecture is an advantage
● You should be able to push your limits and go beyond your role to scale the product
● Go-getter attitude
8-12 yrs experience in SQL, Oracle DB, MySQL, PostgreSQL, Cross-platform application framework
Should be able to handle both frontend and backend developers at a team size of min 5-10 members
Role:
You are an experienced engineering leader, with a passion about building world-class mobile and web applications with high-performant backend and glitch-free experience. You will lead a team which will be developing technology that enables financial services brands to sell better and provide a great experience to their customers. You will architect compelling and engaging applications for Web and Mobile platforms. Employing your experience in proven backend stack like Nodejs, serverless architecture on AWS stack, ELK, Cloud formation, creating RESTful APIs with documentations and enabling complex queries for databases like MongoDB and MySQL/Postgres with discipline in collaboration and pair programming.
Our clientele majorly comprises of BFSI companies, so experience in Financial Applications and enterprise data security will be a big-plus
Responsibilities:
• Lead an Agile team to build web and mobile applications, APIs, SDKs and other tools as required
• Collaborate with various teams within Iorta to realise the requirements for the project and rapidly deliver iterative solutions
• Provide task plans and follow trends in technology and suggest new approaches to application design and development
• Review and evaluate designs for compliance with development guidelines
•. Implement best practices and methods to improve the development process within

Visit us: https://www.saahihain.com
Job Description:
We are looking for a seasoned full-stack engineer (MERN) to build out our mobile application on AWS.
Responsibilities:
Design and implementation of the overall backend architecture
“Pixel-perfect” implementation of our approved user interface
Design and deployment of our database
Mobile development
Design and construction of our REST API
Integrating our front-end UI with the constructed API
Design and implementation of continuous integration and deployment
Have knowledge of live streaming, video communication, and AWS IVS
Skills
Writing HTML, CSS, and JavaScript. Being up on the latest practices is a must, e.g., HTML5, CSS3, and ECMAScript 6 (minimum)
A relevant back-end programming language preferably Node.js
Database design and management, including being up on the latest practices and associated versions
Server management and deployment for the relevant environment
Familiarity with a relevant and globally supported framework—both front-end and back-end, if necessary—( e.g., React, Express, Meteor )
Ideally, familiarity with CSS preprocessors, bundlers, and associated languages/syntaxes/libraries ( e.g., Sass, Less, and webpack )
Thorough understanding of user experience and possibly even product strategy
Experience implementing testing platforms and unit tests
Proficiency with Git or similar version control tool
Appreciation for clean and well-documented code
Knowledge in AWS Amplify is a plus.

As technical lead, you will be responsible for complete product development including
- Identification of technology
- Shaping engineering practices
- Hiring engineering team
- Shaping up the product



