



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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What You’ll Be Doing
- 🛠 Write code for web and mobile apps, fix bugs, and work on features that people will actually use.
- 💡 Join brainstorming sessions and help shape our products.
- 🚀 Things move fast here, and you’ll learn as you go.
- 🤝 Work closely with everyone—designers, developers, and even marketing folks.
- 🔧 Diving into Our Tech Stack: React, React Native Node, Express, Python, FastAPI, and PostgreSQL.
What We’re Looking For
We’re not looking for perfection, but if you’re curious, motivated, and excited to learn, you’ll fit right in!
For Backend Engineers
- 💻 Strong knowledge of Python, FastAPI, and PostgreSQL.
- 🔍 Solid understanding of Low-Level Design (LLD) and High-Level Design (HLD).
- ⚡ Ability to optimize APIs, manage databases efficiently, and handle real-world scaling challenges.
For Frontend Engineers
- 💻 Expertise in React Native.
- 🎯 Knowledge of native Kotlin (Android) and Swift (iOS) is a big bonus.
- 🚀 Comfortable with state management, performance optimization, and handling platform-specific quirks.
General Expectations for All Engineers
- 🛠 While you’ll be specialized in either frontend or backend, you should be good enough to fix bugs in both.
- 🔍 You enjoy figuring things out and experimenting until you get it right.
- 🤝 Great communication skills and a collaborative mindset.
- 🚀 You’re ready to dive in and make things happen.
Interview Process
If we like your application, Be ready to:
- Solve a data structures and algorithms (DSA) problem in your preferred programming language.
- Answer questions about your specialized area (frontend/backend) to showcase your depth of knowledge.
- Discuss a real-world problem and how you’d debug & fix an issue in both frontend and backend
Why Join Us?
- 💡 Your work will matter here—no busy work, just real projects with real outcomes.
- 🚀 Help shape the future of our company.
- 🎉 We’re all about solving cool problems and having fun while we do it.


Python Data Engineer
Job Description:
• Design, develop, and maintain database scripts and procedures to support
application requirements.
• Collaborate with software developers to integrate database scripts with
application code.
• Troubleshoot and resolve database issues in a timely manner.
• Perform database maintenance tasks, such as backups, restores, and migrations.
• Implement data security measures to protect sensitive information.
• Develop and maintain documentation for database scripts and procedures.
• Stay up-to-date with emerging technologies and best practices in database
management.
Job Requirements:
• Bachelor’s degree in Computer Science, Information Technology, or related field.
• 3+ years of Proven experience as a Database Engineer or similar role with python
• Proficiency in SQL and scripting languages such as Python or Js.
• Strong understanding of database management systems, including relational
databases (e.g., MySQL, PostgreSQL, SQL Server) and NoSQL databases (e.g.,
MongoDB, Cassandra).
• Experience with database design principles and data modelling techniques.
• Knowledge of database optimisation techniques and performance tuning.
• Familiarity with version control systems (e.g., Git) and continuous integration
tools.
• Excellent problem-solving skills and attention to detail.
• Strong communication and collaboration skills.


Company : Barcadly Services (www.barcadlyservices.com)
Job Title: React.js Developer
Overview:
We are looking for a skilled react.js developer to join our front-end development team. In this role, you will be responsible for developing and implementing user interface components using React.js concepts and workflows such as Redux, Flux, and Webpack. You will also be responsible for profiling and improving front-end performance and documenting our front-end codebase.
About Us: Barcadly Services is a full fledge "Digital Marketing Agency" Our head office is in Mumbai & Kolhapur; the company was established in the year 2018.
We strongly support and follows the mission of Digital India laid down by Prime Minister Shri. Narendra Modi and provides cost-effective branding solutions for start-ups & big companies in India. At Barcadly services, you will get an insight regarding what is it like to work with a pioneering Digital Marketing Agency in India.
After all, you will only seldom find someone as efficient as we are, when it comes to offering personalized performance marketing.
Thanks to our tight-knit team we have been able to assist over 170 + businesses and establishing themselves in the digital arena."
Experience:1+Years
Ctc-1.8lpa-2.4lpa
Responsibilities:
• Meeting with the development team to discuss user interface ideas and applications.
• Reviewing application requirements and interface designs.
• Identifying web-based user interactions.
• Developing and implementing highly responsive user interface components using react concepts.
• Writing application interface codes using JavaScript following react.js workflows.
• Troubleshooting interface software and debugging application codes.
• Developing and implementing front-end architecture to support user interface concepts.
• Monitoring and improving front-end performance.
• Documenting application changes and developing updates.
Requirements:
• Bachelor’s degree in computer science, information technology, or a similar field.
• Previous experience working as a react.js developer.
• In-depth knowledge of JavaScript, CSS, HTML,Boostrap and front-end languages.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• Experience with user interface design.
• Knowledge of performance testing frameworks including Mocha and Jest.
• Experience with browser-based debugging and performance testing software.
• Excellent troubleshooting skills.
• Good project management skills..



At least 7 years programming experience, some of them in JS/TypeScript.
Proven expert level knowledge in BE & FE development (NodeJS, React,
electron, npm/yarn, WebPack).
Experience with cloud (preferably AWS) and/or micro-services.
Proven experience mentoring junior developers, defining work procedures and coding conventions.
Experience working with various databases (preferably more than two).


Responsibilities
- Developing new user-facing features using React.js
- Building reusable components and front-end libraries for future use
- Translating designs and wireframes into high quality code
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
Skills
- Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
- Thorough understanding of React.js and its core principles
- Experience with popular React.js workflows (such as Flux or Redux)
- Knowledge of isomorphic React is a plus
- Familiarity with RESTful APIs
- Knowledge of modern authorization mechanisms, such as JSON Web Token
- Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
- Ability to understand business requirements and translate them into technical requirements
- A knack for benchmarking and optimization
- Familiarity with code versioning tools such as Git, SVN, and Mercurial

Responsibilities and Duties:
- Work on an intranet portal for excellent employee user experience and productivity using Java full stack tools (React/Angular + Java (Spring boot)
- Support Web App built for employee IT Applications provisioning process.
- Take static design components and develop solutions to elevate work into engaging digital experiences.
- Collaborate with the team to build backend code and integrations as needed.
- Develop user interfaces that are standards-compliant, cross-browser compatible, and performance-optimized.
- Create and maintain a repository of common and reusable code.
- Develop and maintain documentation for code.
Qualifications & Skills:
- Hands on experience with HTML, CSS, JavaScript, React (or Angular with willingness to explore React)
- 6+ years of experience in Java full stack web app development
- Familiarity with developing custom components as well as using component libraries such as MUI/Bootstrap/Ant Design
- Comfortable navigating inside a UNIX/Linux environment
- Ability to write REST APIs and consume with AJAX calls
- Experience with Java/ Core Java
Perks and Benefits:
- Attractive Bonus and Stock options for eligible positions
- A whole suite of best in class leave bouquet: Paid Time Off , Maternity leave, Paternity leave, Sick leave, Casual Leaves, National Holidays etc.
- Medical insurance benefits of 5L covering parents (including COVID hospitalization)
- Learning and Development - certification reimbursement (as applicable)
- Host of benefits to curate your salary as per your need
- Relocation benefits
- World class office infrastructure with Gaming rooms, plush pantry and Break out areas.
About YEXT:
The ultimate source for official answers about a business online should be the business itself. However, when consumers ask questions on company websites, too often they are left in the dark with wrong answers. Yext (NYSE: YEXT), the Search Experience Cloud, solves this problem by organizing a business's facts so it can provide official answers to consumer questions — wherever people search. Starting with the company website, then extending across search engines and voice assistants, businesses around the world, like Taco Bell, Marriott, and Jaguar Land Rover—as well as organizations like the U.S. State Department—trust Yext to radically improve the search experience on their websites and across the entire search ecosystem.
Yext is proud to be an equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, ethnicity, religion, creed, national origin, ancestry, genetics, sex, pregnancy or childbirth, sexual orientation, gender (including gender identity or nonbinary or nonconformity and/or status as a trans individual), age, physical or mental disability, citizenship, marital, parental and/or familial status, past, current or prospective service in the uniformed services, or any characteristic protected under applicable law. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements. If you have a disability or special need that requires accommodation, please let us know.
You will be responsible for overseeing full-stack development as well as the R&D around creating various, unique, and bespoke solutions.
You should be able to quickly understand and support initiatives that will contribute to the goals and success of operations. You would also be working with various departments to coordinate and develop digital solutions for bespoke in-house software.
RESPONSIBILITIES
- Work with development teams and product manager to implement software solutions.
- Developing front end and back end website Architecture.
- Build user interactions on web pages.
- Develop and manage databases for functionalities.
- Designing and developing effective APIs.
- Test Software to ensure the responsiveness and efficiency of applications.
- Meeting both technical and consumer/client needs.
- Write technical documentation.
- Troubleshoot, debug, and review the code.
Introduction
At Samaaro you will be building the future of events. Our mission is to help brands reach out to their global audience in the most efficient and cost-effective way. We want to break the geographical barriers of communication and networking. As a Samaaro Web front-end developer, you'll use the latest tools and technologies available to deliver state-of-the-art software and web applications. You'll have an opportunity to drive the choice of technologies used as we transform our applications and experiment with the best new tools for the job based on upcoming industry trends. You will be able to learn new technical skills and absorb professional knowledge quickly. You'll be responsible for the complete lifecycle of software development, including designing, prototyping, implementation, testing, maintenance, and technical support, creating a productive environment for Samaarotans and our Business Partners.
Responsibilities
At Samaaro we embrace diversity and value what individuals add to our culture. We believe highly empowered teams create the best products -so we take a group of designers, developers, and business analysts, and give them free rein on how to address problems, in a "We give you a problem, you decide how to solve it" environment.
Above all, we value curiosity, teamwork, and a desire to learn. We are confident that if you
possess the right attitude, work ethic, and skillset that you could succeed in the role, even if you do not have all of the required skills.
Required Technical and Professional Expertise
• Front End Skills (min. 2 years experience) - React/Angular (React is preferable), HTML,
CSS, JavaScript.
• Back End Skills (min. 2 years experience) - Node.js
• Solid knowledge of modeling, design patterns, refactoring, unit test.
• Strong software engineering, project management knowledge & experience.
• Bachelor or master’s degree in computer science or equivalent experience.
• Excellent written/spoken communication skills in English.
• Strong communication skills.
Preferred Technical and Professional Expertise
• Experience with design thinking methods to understand personas and develop great user
design
• Demonstrated ability to operate within short release cycles
• Experience using modern collaboration tools in a highly responsive environment
• Great planning and organizational skills, good time management, with the ability to
manage and prioritize own workload and to deal with urgent deadlines and changes to
requirements
• Close teamwork and collaboration across both global and local team environments
• The ability to communicate across organizational boundaries and manage stakeholders
• A passion for creative solutions to real user needs and business problems
• Driven to achieve high levels of customer satisfaction, addressing the underlying problem
and questioning any assumptions Logical approach to problem-solving
• Meticulous attention to detail
• Highly motivated and productive, an entrepreneurial self-starter
• Demonstrable experience coaching junior members of your teams about Business Uni

- Extensive experience in Javascript / NodeJS in the back end
- Front end frameworks such as Bootstrap, Pug, Jquery
- Experience in web frameworks like ExpressJS, Webpack
- Experience in Nginx, Redis, Apache Kafka and MQTT
- Experience with MongoDB
- Experience with Version Control Systems like Git / Mercurial
- Sound knowledge in Software engineering best practices
- Sound knowledge in RestFul API Design
- Working knowledge of Automated testing tools
- Experience in maintaining production servers (Optional)
- Experience with Azure DevOps (Optional)
- Experience in digital payments or financial services industry is a plus.
- Participation in the processes of strategic project-planning meetings.
- Be involved and participate in the overall application lifecycle.
- Collaborate with External Development Teams.
- Define and communicate technical and design requirements, understanding workflows and write code as per requirements.
- Develop functional and sustainable web applications with clean codes.
- Focus on coding and debugging.



