11+ Rational Tools Jobs in Kolkata | Rational Tools Job openings in Kolkata
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React.js
HTML/CSSWe are looking for a Frontend/Platform Operator to ensure the smooth day-to-day operations of our E-lock GPS web-based platform. This role involves monitoring the platform’s performance, resolving minor frontend issues, and reporting bugs to the development team.
Key Responsibilities:
- Monitor the frontend of the web platform for glitches, bugs, or user-reported issues.
- Perform minor frontend updates (HTML/CSS) as needed.
- Collaborate with the IT Administrator and report major issues to the developers.
- Provide user support for platform-related queries (internal team or customers).
- Document platform performance and generate basic usage reports.
Skills Required:
- Basic knowledge of HTML, CSS, and JavaScript.
- Familiarity with frontend frameworks like React.js or basic debugging tools (preferred).
- Understanding of how frontend and backend APIs work together.
- Strong communication skills for reporting issues and collaborating with other teams.
Education and Experience:
- Bachelor’s degree in IT, Computer Science, or related field (preferred).
- 1-2 years of experience in web operations, frontend development, or technical support.
NOTE: We’re inviting applications for a 6-month internship in Frontend/Platform Operator at Mondiale Technologies, a company at the forefront of smart logistics and IoT-based tracking solutions
Eligibility: Final-year students or fresh graduates in BCA / B.Sc. IT / B.Tech / MCA / Diploma in Computer Science or related fields
Internship Highlights:
- Hands-on experience managing and operating our real-time asset tracking web platform
- Support platform users by monitoring dashboards, raising tickets, and resolving basic interface issues
- Coordinate with tech and support teams for data validations and updates
- Exposure to frontend tools, UI testing, and client-side reporting
- Learn to work in a live SaaS environment used by logistics and fleet management teams
Stipend: YES
✅ Pre-placement offer for high-performing candidates
Candidates who successfully complete the internship and demonstrate strong performance will be offered a regular full-time role within the company.
React.js
Javascript.Frontend Developer for a Construction Tech startup.Kolkata-based or with roots in Kolkata.
Requirements:React.js,Javascript
AngularJS (1.x)
Angular (2+)Javascript
ExpressJOB PURPOSE
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- Develop application using Angular JS (worked on Express JS, JEST), Angular 6
- This is a hands-on role which involves writing code, testing, and deploying finished web applications and libraries
MAJOR ACCOUNTABILITY
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- Design, rapid prototype, and implement a scalable, reliable and maintainable node based web application
- Enforce code quality through test driven development
- Enhance, refactor, and continuously improve the existing codebase
- Collaborate closely with team to define product requirements
- Aggressively collect, analyse, and act on data about product performance
- Communicate effectively with technical and non-technical people
- Proactive in keeping your skills updated
ESSENTIAL SKILLS & EXPERIENCE
-------------------------------
- Excellent working knowledge of core Java, Node JS, JavaScript, ES6, Micro services
- 4-6 year's overall development experience (At least 2 years of experience in Node JS and Angular JS)
- Good understanding of security in Micro service and Web Applications
- Good understanding of OOP, and design patterns
- Experience in working with databases - SQL and Non-SQL Databases
EDUCATION
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- Minimum education: Any Graduate BE/B.Tech would be desirable
- Languages: Excellent English written & spoken
React.jsJavascript
Redux/FluxHTML/CSSJob Description: Website Development Specialist
Position: Website Developer Executive
Job Location: Kolkata
Company: Lead Height
Company Location: 6A2, 6th Floor, Newtown Square Atghora, Newtown Road In Spencer Building, Kolkata, West Bengal 700136.
Salary (Fresher - Experienced): ₹9000 - ₹ 25000 (Basic Salary)
Job Type: Full-time
About Us: Lead Height Company is a dynamic and rapidly growing Digital Marketing Company in the IT Sector. We are the perfect blend of a creator and inventor. Lead Height was awarded the Best Startup Company 2020 for excellence and innovation. We are passionate and thrilled to stay updated about the latest marketing trends and techniques to optimize the key component of conversion rate, aiming to provide top-notch solutions to our clients and customers.
Job Responsibilities:
• Website Development: Design, develop, and deploy responsive and user-friendly websites using modern web technologies, ensuring compatibility across multiple browsers and devices.
• Front-end Development: Implement intuitive and visually appealing user interfaces using HTML, CSS, and JavaScript frameworks, ensuring seamless navigation and optimal performance.
• Back-end Development: Develop server-side logic and databases using programming languages such as PHP, Python, or Ruby, and frameworks like Django or Laravel, to enable dynamic functionality and data integration.
• Content Management System (CMS): Customize and integrate CMS platforms, such as WordPress or Drupal, to enable efficient content creation, publishing, and management.
• Web Application Development: Build interactive web applications, including e-commerce platforms, online portals, and custom web-based tools, incorporating secure and scalable coding practices.
• Cross-functional Collaboration: Collaborate with designers, UX/UI specialists, and other stakeholders to ensure the seamless integration of design elements and user-experience requirements into the development process.
• Testing and Debugging: Conduct thorough testing, debugging, and optimization of websites and web applications to ensure smooth functionality, responsiveness, and performance.
• Website Maintenance and Updates: Perform regular updates, maintenance, and security enhancements for existing websites, ensuring they remain up to date with the latest web standards and technologies.
• Documentation: Create and maintain technical documentation, including project specifications, code documentation, and version control, to facilitate efficient collaboration and future maintenance. Requirements:
• Web Development Skills: Strong proficiency in HTML, CSS, JavaScript, and other front-end technologies. Knowledge of back-end programming languages and frameworks is a plus.
• Frameworks and Libraries: Experience with popular front-end frameworks and libraries such as React, Angular, Vue.js, or Bootstrap, and familiarity with back-end frameworks like Node.js, Django, or Laravel.
• Database Management: Proficiency in working with relational databases (e.g., MySQL, PostgreSQL) and NoSQL databases (e.g., MongoDB) to design, develop, and optimize database schemas and queries.
• Web Standards and Optimization: Familiarity with web standards, SEO best practices, and website optimization techniques to ensure fast loading times and optimal performance.
• Problem-solving skills: Strong analytical and problem-solving abilities to troubleshoot and debug complex web development issues.
• Collaboration and Communication: Excellent teamwork and communication skills to collaborate effectively with cross-functional teams and translate requirements into technical solutions.
• Continuous Learning: Willingness to stay updated with emerging web technologies, programming languages, and industry trends to ensure the adoption of best practices and enhance skill sets.
• Portfolio: A portfolio showcasing previous web development projects or code samples will be advantageous.
Disclaimer: This job description is a general outline of the responsibilities and requirements expected of a Website Development Specialist. Duties may be subject to change based on the company's needs and the evolution of the digital marketing landscape. Compensation:
Base salary: ₹9,000 - ₹25,000 per month.
Based on Experience of Candidates.
Benefits:
• Comprehensive training and onboarding process.
• Opportunity for career growth and advancement within the company.
• Supportive and collaborative work environment. If you are a results-driven individual with a passion for Website development and a desire to contribute to the growth of a thriving company, we encourage you to apply for the Website Development Executive at Lead Height Company.
Join our team and be part of our exciting journey to success! Application Process: Interested candidates are requested to submit their updated resume along with a cover letter detailing their relevant experience and why they believe they are a suitable fit for the role. We look forward to reviewing your application
React.jsJavascriptRedux/FluxAngularJS (1.x)HTML/CSSThe ideal candidate will have experience in creating mockups to present to teams,
collecting feedback and creating a quality piece of work. This individual should be
comfortable with building sitemaps, wireframes and prototypes to provide project
manners and inevitably execute based on outlined criteria. This candidate should
have strong creative and design skills and be familiar with various design
technologies.
Responsibilities
· 1. Develop new user-facing features
· 2.Build reusable code and libraries for future use
· 3.Ensure the technical feasibility of UI/UX designs
· 4. Optimize application for maximum speed and scalability
· 5.Assure that all user input is validated before submitting to back-end Skills
And
Qualifications
Proficient understanding of web markup, including HTML5, CSS3 Basic
understanding of server-side CSS pre-processing platforms,
Proficient understanding of client-side scripting and JavaScript frameworks,
including jQuery
Should know advanced JavaScript libraries and frameworks,
such as AngularJS, ReactJS
Bachelor's degree in user experience, design or related field-(Btech/ BCA)
· Note: Every front-end developer is expected to have proficient knowledge of
JavaScript, while most front-end developers should know jQuery.
Strong communication, design and creative thinking skills Experience with
Adobe Pro, Photoshop and programming languages HTML, CSS and
JavaScript lea, UI developing.
Experience: 2 to 4 years
Preferred Candidate: Immediate Joiner
Location: Kolkata only Onsite
Compensation
As per the industry standard
React.jsJavascriptRedux/Flux
NodeJS (Node.js)Job Description
-Develop all user-facing products in NodeJs & React.Js (SSR)
-Build reusable components and front-end libraries for future use.
-Translate designs and wireframes into high quality code
-Focus on code maintainability and performance of application.
-Provide technical advice and assists in solving programming problems.
Requirements
• 5+ years of experience in frontend development primarily using React .JS
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Good foundation in design and a knack for designing interactions and elegant interfaces)
• Thorough understanding of NodeJs & React.js(SSR) and its core principles
• Familiarity with RESTful APIs
• Familiarity with modern front-end build pipelines and tools
• Familiarity with code versioning (version control) tools, such as Git, SVN, and Mercurial
• Thorough understanding of React.js and its core principles
• Good to have experience with popular React.js workflows
• Ability to understand business requirements and translate them into technical requirement
• Preference will be given to those who have worked on libraries such as Bootstrap, Material js.
• Knowledge ofGraphQL and CSS preprocessor like SASS
• Proficient in industry standard best practices such as Design Patterns, Coding Standards,
Coding modularity, Prototypes etc.
React Native
Android Development
iOS App DevelopmentRedux/FluxOur client is a decade-old software development company, that offers its clients a wide range of customized web, mobile, and eCommerce tools and software. They are known to use advanced languages and platforms used to build reliable, secure, and scalable solutions for their business clients as well as individual customers. Their disruptive craftsmanship and strategy help in high-performance growth and allows customers to transform digitally and competitively.
Their products are being used by most of the banks and NBFCs in India, apart from clients from other industries. The founder is an IIM and MDI alumni and has experience of more than 13 years in business and strategic roles in MNCs. The company has been accredited by the government as a premier IT company, committed to quality and driven by customer success.
- Architecting and building the applications and coordinating with the teams
- Building other layers of the product infrastructure.
- Building pixel-perfect UIs across both mobile platforms.
- Leveraging native APIs for deep integrations with both platforms.
- Diagnosing and fixing bugs and performance
- Bottlenecks for performance that feels native.
- Reaching out to the open source community
- Implementing mission-critical software fixes
- Maintaining code and writing automated tests to ensure the product is of the highest quality.
What you need to have:
- Experience in building React-Native mobile apps for both Android and iOS platforms.
- Strong understanding of Javascript, ES6 and Clojure Scripts and ES6+ syntax
- Experience in building local storage-based caching and fast performing applications
- Experience with test suites like Mocha or Jest
- Strong understanding of how Redux
- Strong understanding of component state Management
- Experienced in RESTful API integration and good knowledge of how APIs work.
- Experienced in building modular app components that can be reused
- Experienced in creating React Native Bridges for deep integration with Native APIs
- Experience in writing automated test cases for mobile apps.
- Strong understanding of javascript and UI layouts in React Native
- Knowledge of ecommerce application development
JavascriptReact.jsRedux/FluxAbout Company: Spica Systems (https://spicasys.com )
Spica Systems is a Silicon Valley based start-up, established in 2019 and are recognized as experts in building products and providing R& DandSoftware Development services in wide range of leading-edge technologies such as LTE, 5G, Cloud Services (Public -AWS, AZURE, GCP, Private -Openstack) and Kubernetes. Ithasa highly scalable and secured 5G Packet Core Network, orchestrated by ML powered Kubernetes platform, which can be deployed in various multi cloud modealong with a test tool. Headquartered in San Jose, California, we have our R& D centre in Sector V, Salt Lake Kolkata.
- Looking for a Software developer who will work on the product's Web UI side
- Hands on and working experience with React JS
- Experience in WebUI using Javascript technology.
- Experience: 2-4 years of React development in a team environment
- In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
- Knowledge of REACT tools including React.js, Webpack, Redux.
- Experience with user interface design. Knowledge of performance testing frameworks including Mocha and Jest.
- Experience with browser-based debugging and performance testing software.
Education: Bachelors/Masters in Computer Science, IT or Mathematics or Engineering
Traits: Quick learner, open minded, willing to learn
AngularJS (1.x)Javascript
jQuery
Bootstrap
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