React or Rails Developer

Job Title : Senior Software Engineer (Full Stack Capability)

Experience : 4+ Years

Location : West Patel Nagar, New Delhi

Employment Type : Full-Time

About the Role :

We are looking for a highly skilled Senior Software Engineer with 4+ years of experience in designing, developing, and maintaining scalable web applications. The ideal candidate should have strong backend expertise in Java, Python and Node.js while also being capable of handling frontend development when required.

This role requires excellent problem-solving abilities, ownership mindset, and strong communication skills to collaborate effectively with cross-functional teams and stakeholders.

Key Responsibilities :

• Design, develop, and maintain robust backend applications using Java and Node.js.
• Build and consume RESTful APIs and microservices.
• Develop scalable, secure, and high-performance applications.
• Work with frontend technologies to build and enhance user-facing features.
• Collaborate with product managers, designers, and other developers to deliver business requirements.
• Optimize application performance, troubleshoot issues, and implement best practices.
• Write clean, maintainable, and well-documented code.
• Participate in code reviews and contribute to technical discussions.
• Manage database design, optimization, and integrations.
• Ensure application security, scalability, and reliability.

Required Skills & Qualifications :

• 4+ years of professional software development experience.
• Strong hands-on experience with Java, Spring Boot, and related backend frameworks.
• Strong experience with Node.js, Express.js, and API development.
• Good understanding of Microservices Architecture.
• Experience with MySQL, PostgreSQL, or MongoDB.
• Knowledge of Redis, caching mechanisms, and message queues is a plus.
• Familiarity with cloud platforms such as AWS, Azure, or GCP.
• Experience with version control systems like Git.
• Understanding of CI/CD pipelines and deployment processes.

Frontend Requirements :

• Ability to work on frontend development when required.
• Experience with React.js, JavaScript, TypeScript, HTML5, and CSS3.
• Understanding of responsive design and modern UI development practices.

Soft Skills :

• Excellent verbal and written communication skills.
• Strong stakeholder management and client interaction abilities.
• Ability to work independently and take ownership of projects.
• Strong analytical and problem-solving skills.
• Team player with a collaborative mindset.

Preferred Qualifications :

• Experience working in product-based or fast-paced startup environments.
• Knowledge of Docker, Kubernetes, and DevOps practices.
• Experience with Agile/Scrum methodologies.

MERN Stack Developer

Location: Surat, Gujarat (No WFH )

Job Summary:

We are looking for a Full Stack Developer (MERN) with hands-on experience in building highly scalable, performance-driven applications. The ideal candidate should have a deep understanding of both front-end and back-end development, microservices, and database optimization for large-scale systems. You will be responsible for designing, developing, and maintaining applications that can handle high concurrency (1,000+ active users) while ensuring performance, reliability, and scalability.

This role involves working closely with cross-functional teams — including product managers, designers, and DevOps engineers — to deliver cutting-edge, enterprise-grade solutions.

Roles & Responsibilities:

• Design and develop scalable and distributed web applications using the MERN stack (MongoDB, Express.js, React/Next.js, Node.js).
• Build and optimize RESTful APIs for high-performance, concurrent environments.
• Architect and manage MongoDB databases, ensuring high availability, efficient query performance, and scalability.
• Implement queueing systems (e.g., BullMQ, RabbitMQ, Kafka, or Redis Queues) for background jobs and asynchronous processing.
• Optimize server and client performance to support real-time data updates and high concurrent user loads.
• Collaborate with DevOps to improve deployment pipelines, containerization (Docker), and cloud scalability.
• Conduct thorough testing, profiling, and debugging to identify performance bottlenecks and optimize both code and infrastructure.
• Participate in code reviews, architecture discussions, and sprint planning to ensure technical excellence and scalability across all layers.

Qualification / Requirements:

• Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).
• 1 + years of hands-on experience in full-stack development using the MERN stack.
• Proven experience working on applications supporting 1,000+ concurrent users or large-scale distributed systems.
• Strong expertise in:
• Node.js (asynchronous programming, clustering, performance optimization)
• Next.js & React.js (SSR, CSR, and dynamic rendering)
• MongoDB (aggregation pipelines, indexing, schema design for scalability)
• Practical experience with message queues (BullMQ, RabbitMQ, Kafka, or Redis Streams).
• Familiarity with caching mechanisms (Redis, Memcached) to optimize performance.
• Experience with Docker and microservices-based architectures is a plus.
• Good understanding of API design, authentication mechanisms (JWT, OAuth), and security best practices.
• Experience working in Agile environments and using Git-based version control.

Nice to Have:

• Exposure to serverless computing (AWS Lambda).
• Experience with monitoring tools (New Relic, Datadog, ELK Stack).
• Knowledge of CI/CD pipelines and automated deployment workflows.
• Experience in real-time communication (WebSockets, Socket.io).

What You Need: 

✅ Strong experience in backend development using Python (Django, Flask, or FastAPI). 

✅ Hands-on experience with Azure Cloud services (Azure Functions, App Services, AKS, CosmosDB, etc.). 

✅ Experience leading a development team and managing projects. 

✅ Expertise in designing and managing APIs, microservices, and event-driven architectures. 

✅ Strong database experience with MongoDB, PostgreSQL, MySQL, or CosmosDB. 

✅ Knowledge of DevOps practices, including CI/CD pipelines, Docker, and Kubernetes. 

✅ Ability to develop Proof of Concepts (POCs) and evaluate new technology solutions. 

✅ Strong problem-solving and debugging skills. 

 1.Experience in proper MERN Stack

 2.In depth knowledge of Node JS, Angular JS, MongoDB 

 3.Experience in implementing applications using AngularJS.

 4.Experience in creating front end applications using HTML 5, Angular JS, LESS/SASS 

 5.Javascript experience both on client as well as on server side

 6.Experience with MVC and MVVM design patterns

 7.Good experience with multiple third party API's integration

 8.Experience in MongoDB scaling and optimization

 9.Experience with cloud technologies AWS Lambda & EC2 setup

 10.Experience in creating RESTful based web services in JSON & XML

 11.PLUS to have additional experience in Angular 2+/

 12.Added experience in MySQL optimisation would be a great plus 

 13.Good communication, analytical and logical skills to understand and work with any kind of project requirements independently

About Klenty

Klenty is a Software Product company operating in the Sales Engagement category.

One of the fastest growing SAAS startups in the sales engagement space, Klenty is headquartered in California and operates from Chennai, India.

Klenty’s Sales Engagement Product helps thousands of sales teams automate all the repetitive activities involved in the sales process like sending emails, follow-ups, tracking engagement metrics, etc - so that the sales team can focus more on activities like building relationships and closing deals.

With over 3000 customers all over the world, we are on a mission to transform every B2B Sales team into an unstoppable force

Join us in building the future of sales engagement software

Our project entails implementing our pre-approved UI, constructing our API, connecting the two, and setting up our server infrastructure. This includes all associated areas such as database and architecture design.

Roles and Resposibilities

• Design and implementation of the overall web architecture.

• Flawless implementation of our approved user interface.

• Design and deployment of our database used in online and offline executions and construction of our REST API.

• Integrating with third-party APIs and existing frameworks.

• Design and implementation of continuous integration and deployment.

• Providing improvements to the product being supported.

• Actively participated in release and sprint planning, artifact creation, sprint testing, regression testing, demonstrations, retrospectives, and solution releases.

• Developing and adhering to best practices for developing applications and continuously contributing to team performance improvement and collaboration.

• Design, code, test, debug, maintain, and document programs.

• Writing unit tests to continually improve the quality of our ability to introduce features at a rapid pace.

• Programming, updating, and managing server-side code.

• Working closely with other developers to maintain structured code.

• Continuously improve the tribe’s services to achieve technical excellence and pay off the technical debt over time.

Required Skills

• At least 3 years of experience with: Relevant back-end programming

• in NodeJS, ReactJS, ExpressJS, JavaScript

• 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.

• Ideally, familiarity with CSS pre-processors, bundlers, and associated languages/syntaxes/libraries

• Thorough understanding of user experience and possibly even product strategy.

• Experience implementing testing platforms and unit tests

• Proficiency with Git

• Experience with agile and/or DevOps processes and tools (e.g., JIRA,) Ability to translate software requirements into working and maintainable solutions within the existing application frameworks.

• Excellent knowledge of relational databases. Excellent skills in DB schema design.

Skills:- MongoDB, Express, React.js, NodeJS (Node.js), Amazon Web Services (AWS), Javascript, CI/CD, Redis, Elastic Search and Heroku

Industry

Information Services

Employment Type

Full-time

Role - Technology Lead

Role Overview 

As a Tech lead, you will take an active role in the definition and evolution of standard practices and  procedures, working closely with the co-founders in building a team. You will be responsible for  defining and developing software for tasks associated with the developing, designing and  debugging of the software applications. The technology lead will be a part of the core leadership  team and will be involved in all crucial decisions. So apart from strong technical skills, leadership is  something we are looking for.  

Responsibilities  

▪ Work Experience between 3 to 5 years in large scale applications with desire to work in fast  paced startups  

▪ Must have led a team of 3 to 10 engineers. Excellent business understanding and  prioritization skills. Fully hands on with coding and up to date with technology trends. 
▪ Focus on code maintainability and performance of application and a demonstrated product  development ability.  

▪ Must be excellent with hiring and should have built a team from scratch or small size 
▪ Provide technical advice and assists in solving programming problems  

▪ Continuously create new and interactive features that would help to improve user  experience and user engagement.  

▪ Assist with troubleshooting of issues as needed 

Tech Stack -

Node Js, Nativescript, Angular, React, React Native, MongoDB, AWS.  

• End-to-end full-stack development experience
• Full hands-on experience with at least one of the following languages Java, PHP, Python, .NET and code repositories like GIT, SVN
• Expertise with HTML5, JQuery, CSS
• Proficiency with front-end JavaScript frameworks like Angular, React, etc.
• Experience of designing and developing APIs in a micro-service architecture
• Experience with webserver technologies like Node.js, J2EE, Apache etc.
• Good understanding and working experience with either relational or non-relational databases like Oracle, MySQL, PostgreSQL, Mongo DB, Cassandra
• Good understanding of the changing trends of user interface guidelines for mobile apps and be able to transform apps to newer form factors
• Hands-on with Native UI Components
• Familiar with Cloud components & deployment procedures.
• Familiar with code repository

• You will hold the beacon for development and user experience at a company while helping us scale from 3 million users to 50 million users
• Build performance and effective new features by participating in the overall application lifecycle
• Build modular, reusable, performant, and optimal features both in frontend and backend
• Code, debug, troubleshoot, deliver
• Help maintain and improve existing data structures while planning and implementing new model data structures for scalability
• Continuously improve stability and performance of company’s tech platform
• Be the user’s voice and help make product decisions
• Exhibits knowledge and behavior to adopt Information Security and Privacy practices at their work.

• 1 - 4 years experience as a Full-Stack Developer
• In-depth understanding of the entire web development process (design, development, and deployment)
• Proficiency with Nodejs, MongoDB, AWS.
• Proficiency with front-end languages (e.g. HTML, JavaScript, and CSS)
• Team Building & Leadership
• Want to interact with all levels of the company including senior leaders and cross-functional teams
• Love problem solving and thrive on handling multiple projects and tasks
• Foster strong professional relationships with the full organization
• Sense of ownership and pride in your performance and its impact on the company’s success