Principal Engineer

Job Summary:

As a Java Full Stack Developer, you will design, develop, and maintain scalable backend services and frontend applications using Java (Spring Boot) and React. You will work closely with cross-functional teams to deliver high-performance and reliable systems.

Key Responsibilities:

• Develop and maintain applications using Java, Spring Boot, and React

• Design and build RESTful APIs for data-driven applications

• Work on frontend development using ReactJS

• Ensure scalability, performance, and reliability of applications

• Collaborate with QA, DevOps, and Product teams

• Participate in code reviews and technical discussions

• Troubleshoot and resolve production issues

• Mentor and guide junior developers

Required Skills & Qualifications:

• Strong experience in Java and Spring Boot

• Hands-on experience with React.js

• Experience with PostgreSQL or other relational databases

• Good understanding of data modeling and backend architecture

• Strong knowledge of OOP concepts

• Familiarity with Agile/Scrum and Git workflows

• Excellent problem-solving and communication skills

Good to Have:

• Experience with Snowflake / Databricks

• Exposure to data-driven or analytics platforms

Company Description

13kbs.com is a forward-thinking company committed to delivering cutting-edge solutions that empower businesses to excel in the digital era. We bridge the gap between innovation and practicality, ensuring efficiency, security, and scalability at every step.

Our key services include AI-powered solutions, scalable full-stack development, cloud & AWS expertise, comprehensive firewall & compliance reviews, and automation testing. At 13kbs.com, we deliver high-impact solutions that align with the evolving demands of technology while maintaining a strong focus on privacy and reliability.

Role Description:

MERN Stack Developer (On-Site – Rajkot)

This is a full-time, on-site role for a MERN Stack Developer based in Rajkot. The developer will be responsible for developing, testing, and maintaining seamless user experiences using technologies such as MongoDB, Express.js, React, and Node.js.

Daily responsibilities include collaborating with cross-functional teams to define, design, and ship new features; writing clean, efficient, and well-documented code; debugging and optimising applications; and ensuring application scalability and security.

• Qualifications & RequirementsExperience: 1–3 years of hands-on experience in MERN stack development
• Proficient in: MongoDB/Postgres, React, and Node.js
• Front-end expertise: HTML, CSS, JavaScript
• Strong understanding of: RESTful APIs and web services
• Familiarity with: Git or other version control systems
• Experience with cloud services: Especially AWS
• Education: Bachelor’s degree in Computer Science, Engineering, or related field
• Soft Skills: Strong problem-solving abilities and effective communication skills
• Language Requirement: Candidate must be able to understand and communicate in Gujarati
• Location: Must be based in Rajkot or nearby areas
• Work Type: Full-time, work from office only (no remote option)

Important Note

Only apply if you meet all the above criteria, including 1–3 years of experience, proximity to Rajkot, and Gujarati proficiency.

Key Responsibilities & Technical Expertise

• Design, develop, customize, and maintain Magento 2 websites, extensions, and modules.
• Build and enhance Progressive Web Applications (PWA) using Magento PWA Studio, React.js, and GraphQL.
• Integrate third-party systems including payment gateways, ERP, CRM, and other API-based services.
• Optimize site performance, caching, and scalability using tools like Redis, Varnish, and Elasticsearch/OpenSearch.
• Configure caching, indexing, and CDN for improved site performance.
• Expertise in HTML5, CSS3, LESS/SASS, JavaScript, jQuery, and TypeScript.
• Skilled in React.js, Redux, GraphQL, and REST APIs for modern frontend development in Magento PWA.
• Proficient in Magento theme development, custom module development, and UI component customization.
• Set up and manage Docker-based environments for local development, staging, and production deployments.
• Implement security best practices, perform regular updates, and maintain backup and disaster recovery strategies.

As a Full Stack Developer; you should be comfortable around both front-end and back-end coding languages, development frameworks, and third-party libraries. You should also be a team player with a knack for visual design and utility.

Responsibilities:

• Work with development teams and product managers to ideate software solutions.
• Design client-side and server-side architecture.
• Build the front end of applications through appealing visual design.
• Develop and manage well-functioning databases and applications.
• 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:

• Backend: Spring (JAVA), Spring Boot, Laravel (PHP), MySQL, NoSQL, NGINXPlus.
• Frontend: Angular 5+ Ngrx/store5
• Infrastructure: Google cloud platform (App Engine, CloudSQL, BigQuery, PubSub, Firebase Hosting), Pusher.io (WebSockets), Filestack, Postmark app, 4 Tools: Postman app, JIRA.
• Rest APIs, Microservices, Agile, Oauth, Message Queue, Git.
• 6 years proven experience as a Full Stack Developer or similar role.
• Experience working with service-oriented architectures and web-based solutions.
• Familiarity with common stacks.
• Knowledge of multiple front-end languages and libraries (e. g. HTML/ CSS, JavaScript, XML, jQuery).
• Knowledge of multiple back-end languages (e. g. C#, Java, Python) and JavaScript frameworks (e. g. Angular, React, Node.js ).
• Familiarity with databases (e. g. MySQL, MongoDB), web servers (e. g. Apache) and UI/UX design.
• Experience working on Agile processes (Scrum, Kanban).
• Experience working on the AWS technologies.
• Excellent communication and teamwork skills.
• Great attention to detail.
• Organizational skills.
• An analytical mind.
• Degree in B. tech/BE.

• Ability to work in an existing codebase and collaborate with a diverse team
• Experience in building enterprise-scale backend REST APIs with frameworks such as Nest.js & Express.js using an API-first paradigm
• Intimate knowledge of crafting highly performant database queries
• Hands-on experience implementing relational database structures, including tables, indexes, views, etc.
• A mindset towards building systems for the cloud and DevOps fundamentals
• Working knowledge of cloud infrastructure services is good to have. If not then willingness to learn should be there.
• Focus towards building security, performance, and scalability into services from the beginning
• Experience with debugging code and troubleshooting technical issues in order to craft appropriate solutions
• Strong proficiency with JavaScript
• Experience in creating and deploying cloud-based web applications.
• Good at Jade, EJS,
• Good at CSS preprocessors (such as Stylus, Less, etc depending on your technology stack)
• Front-end technologies, such as HTML5, and CSS3
• User authentication and authorization between multiple systems, servers, and environments
• Integration of multiple data sources and databases into one system
• Understanding differences between multiple delivery platforms, such as mobile vs. desktop
• Creating database schemas that represent and support business processes
• Implementing automated testing platforms and unit tests
• Proficient understanding of code versioning tools, such as Git
• Experience with Node.js using web server-based frameworks such as Express.
• PLUS - experience with React.JS, React Native, vue.js javascript framework * Experience with Amazon Web Services
• PLUS - experience with Jenkins or other Continuous Integration tools

Roles and Responsibilities

• The candidate should have good experience in React & Node. Ability to understand business requirements and translate them into technical requirements.
• Produce high-quality code and experience with security implementations Identifying application security risks and Implementing security patches procedures.
• Stronghold on MongoDB and experience on other No SQL databases.
• Experience with Graph, Payment Gateway, Node.js process management, and web sockets like socket.io

Desired Candidate Profile

• Good understanding of core concepts of React.js.
• Strong understanding of Node.js and express.
• Hands-on experience in state management libraries like Redux & RXJS.
• Strong foundation of HTML5 & CSS3, pre-processors (Less/SCSS) and JavaScript.
• Experience integrating with Restful web services.
• Proficient with ES6/7/8 syntax and concepts.
• Also into Microservice architecture, Kubernetes, PUB-SUB concept

Permanent WFH opportunity.

Shift timing 11 am- 8 pm