Senior Frontend Engineer

As a Frontend Developer, your responsibilities will include:

• Developing new user-facing features using React.js and integrating with backend services.
• 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 broad spectrum of web-capable devices and browsers.

Key Performance Indicators:

• Efficiency and quality of the code developed.
• Adherence to project timelines and delivery milestones.
• Positive stakeholder feedback on usability and design.
• Continuous improvement and adoption of best practices in frontend development.

Prior Experience Required:

• Minimum 3+ years of experience in frontend web development.
• Proficient in JavaScript, including DOM manipulation and the JavaScript object model.
• Extensive experience with React.js and its core principles.
• Strong proficiency in HTML5, CSS3, and modern frontend development tools.
• Experience with popular React.js workflows (such as Redux).
• Familiarity with newer specifications of EcmaScript.
• Experience with data structure libraries (e.g., Immutable.js).
• Good understanding of RESTful APIs and modern authorization mechanisms (e.g., JSON Web Token).
• Good to have: Experience with TypeScript and Next.js.

Location:

Hyderabad

Collaboration:

The role involves working closely with backend developers, UI/UX designers, and project managers to deliver seamless, high-quality web applications.

Salary:

Competitive, based on experience and market standards.

Education:

• Bachelor's degree in Computer Science, Information Technology, or a related field.

Language Skills:

• Strong command of Business English, both verbal and written, is required.

Other Skills:

• Excellent problem-solving skills.
• Looking for perfection in development
• Taking Ownership and Accountability in a fast-paced environment.
• Proficiency in code versioning tools, such as Git.
• Knowledge of modern frontend build pipelines and tools.
• Experience with responsive and adaptive design.

Additional Requirements:

• Portfolio of previous projects that demonstrates expertise in frontend development.
• Familiarity with agile methodologies.
• Strong teamwork skills, with the ability to collaborate effectively with colleagues and clients across diverse teams.

Employer:

About RaptorX

RaptorX is a fintech startup focused on redefining fraud detection and prevention in real time for banks, financial institutions, and digital platforms. Backed by top-tier investors, including senior technology leaders from Google, Microsoft, and Peak XV Partners, RaptorX leverages advanced AI models for anomaly detection, and high-throughput architecture to stay ahead of sophisticated fraud patterns.

Individual Contributor

Product Owner

6 years plus on Angular with TypeScript/React.js

Immediate Joiners Only

Worked on Dashboards customising Components

Roles & 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

Desired skills :

- Strong knowledge of Javascript (ES6) including all the latest features

- Ability to create flexbox driven UI layout

- Ability to comprehend performance issues and solve them

- Strong debugging skills using the browser

- Knowledge of Git (including merging, branching and resolving merge conflicts)

Job Title: React Lead Developer

Location: Airoli, Mumbai

Work Mode: Work from Office (WFO) – Full-time

About the Role:

We are seeking a highly skilled and experienced React Lead Developer to join our growing team in Airoli, Mumbai. The ideal candidate will lead front-end development efforts, mentor developers, collaborate closely with cross-functional teams, and play a key role in delivering scalable, high-performance web applications.

Key Responsibilities:

• Lead the design and development of responsive web applications using React.js
• Collaborate with UX/UI designers, product managers, and backend teams to deliver high-quality products
• Write clean, maintainable, and well-documented code
• Optimize applications for performance and scalability
• Conduct code reviews and ensure coding best practices are followed
• Mentor and guide junior developers in the team
• Participate in architectural discussions and contribute to tech strategy
• Keep up with emerging trends and technologies in frontend development

Required Skills & Experience:

• 6+ years of experience in frontend development, with at least 3 years in React.js
• Strong proficiency in JavaScript (ES6+), HTML5, CSS3, Redux, and REST APIs
• Experience with React Hooks, Context API, and component-based architecture
• Familiarity with Webpack, Babel, and modern build tools
• Experience with version control tools like Git
• Exposure to Agile methodologies and CI/CD pipelines
• Strong problem-solving and debugging skills
• Excellent communication and leadership qualities

Nice to Have:

• Experience with TypeScript, Next.js, or React Native
• Exposure to cloud platforms (AWS/Azure)
• Familiarity with testing frameworks (Jest, Cypress, etc.)

Education:

Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field

We are looking for a React Developer to join our awesome team and deliver a streamlined user experience. We want a team member who strives to develop a first-class codebase using React best practices. As a React Developer, you will implement a complete user interface in the form of a mobile/desktop web app & handle its integration with the back-end. 

• Develop user interfaces for modern rich internet applications with the latest Front End Technologies
• Perform product analysis and development tasks of increasingly complex nature which may require extensive research and analysis.
• Writing tested and documented JavaScript, HTML and CSS
• Make design and technical decisions for React projects
• Develop application code and unit tests in the React. 
• Ensuring high performance

• BSc/BE/BTech in Computer Science, Engineering or a related field
• 1+ years Experience with React. Good to have working knowledge of React Native, Angular, VueJS
• Strong expertise with HTML, CSS, and writing cross-browser compatible code.
• Good understanding of AJAX and JavaScript DOM manipulation Techniques
• Experience with RESTful services
• Experience in JavaScript build tools like grunt or gulp
• Hands on and implements complex React modules
• Able to implement automated testing platforms and unit tests
• Understanding of fundamental design principles behind a scalable application
• Proficient understanding of code versioning tools (Git) 
• Critical thinker and problem-solving skills
• Team player
• Good time-management skills
• Great interpersonal and communication skills

Work Timings: 1:30 PM to 10:30 PM IST

Location: Noida/Delhi NCR/Mumbai

Qualifications: B Tech / MCA or Higher

Experience: 2-7 Years

IMMEDIATE JOINERS & SERVNG NOTICE PERIOD CANDIDATES ARE PREFFERED.

NextGen Invent (“NGI”) is a leading global professional services company that specializes in providing strategy, technology, operations, and data management services. NGI has always been at the forefront in providing solutions using disruptive technologies such as Big Data Analytics, Blockchain, IOT, Artificial Intelligence and Augmented Reality. Our in-depth Industry knowledge, specialized technical expertise, unmatched data science experience, and global delivery network along with our “Customer first” policy has allowed us to grow via word of mouth. Our clients are fortune 500 companies to start-ups with innovative ideas. Regardless of technology, we can be your trusted technology partner who can solve your business problems. NGI is Microsoft gold certified partner, AWS consulting partner and IBM Registered Partner.

For more updated information,

please follow-us on https://www.linkedin.com/company/nextgen-invent-corporation." target="_blank">https://www.linkedin.com/company/nextgen-invent-corporation.

Headquartered: New York, USA

KEY RESPONSIBILITIES:

You'll be expected to own projects from start-to-finish. We are looking for passionate Web Engineers who appreciates good engineering and user experience. The person should be enthusiastic about maintaining a clean codebase and possess a passion for pushing web technologies to the limits to design and build exceptional products.

§ Work closely with design, product management, and development teams to create elegant, usable, responsive, and interactive interfaces across multiple devices.

§ Turning UI/UX designs into prototypes, creating awesome interactions from designs, writing reusable components and maintainability of the code.

§ Demonstrates excellent problem solving & debugging skills.

§ An ability to perform well in a fast-paced environment and bring in optimal flow for rapidly changing design/ technology.

§ Write unit and integration tests to improve and maintain high code coverage.

Skills, Knowledge, Experience:

• Excellent programming skills in JavaScript

• Experience with expertise in designing and implementing high-performance web applications

• Expert in SPA Frameworks React JS

• Solid understanding and demonstrated ability of creating self-contained, reusable, and testable modules and components.

• Solid understanding of HTML5, CSS3 and cross-browser compatibility issues.

• Solid understanding of CSS box model and flex layouts.

• Proficient in SASS.

• Experience with REST APIs, Node JS/.Net Web API/Golang is a plus.

• Experience with the entire Software Development Life Cycle (SDLC)

• Experience with unit testing & Test-Driven Development (TDD) with various test frameworks (like Jasmine, Karma, Protractor).

• Experience in optimizing the application for performance and scalability.

• Experience in state management using Akita and cross-browser support.

• Experience with Git.

• Experience with DevOps tools for CI/CD

• Working with USA or European clients is a plus.

• Experience working with multi-vendor, multi-culture, distributed offshore and onshore development teams in dynamic and complex environment.

• Must have excellent written and verbal communication skills.

Job description for react js developer

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.

- To ensure success as a React.js Developer, you should have in-depth knowledge of JavaScript and React concepts, excellent front-end coding skills, and a good understanding of progressive web applications. Ultimately, a top-class React.js Developer should be able to design and build modern user interface components to enhance application performance.

React.js Developer Responsibilities :

- Meeting with the development team to discuss user interface ideas and applications.

- Identifying web-based user interactions.

- Writing application interface codes using JavaScript following React.js workflows.

- Developing and implementing front-end architecture to support user interface concepts.

- Documenting application changes and developing updates.

React.js Developer Requirements :

- Bachelor's degree in Computer Science, Information Technology, or a similar field.

- In-depth knowledge of JavaScript, CSS, HTML and front-end languages.

-Familiarity with code versioning tools such as Git, SVN, and Mercurial popular frontend development tools, CI/CD tools, DevOps.

- Excellent troubleshooting skills.

JOB SUMMARY:

The Senior Software Engineer designs, develops, troubleshoots, and debugs software applications for our core product. This includes developing software components including Frameworks, APIs, Websites, Utilities, Databases, and Internet-related tools. Demonstrate technical leadership, mentor junior team members, contribute in effort estimation and identify hardware needs.

MINIMUM QUALIFICATIONS AND REQUIREMENTS:

• Bachelor’s Degree in Computer Science or equivalent
• 4+ years working with React Js, exposure to Ember JS will be an advantage
• 5-12 years of industry experience in programming web applications, mobile and/or large-scale enterprise products.
• Proficient in JavaScript, CSS
• Strong experience in one of the following JavaScript frameworks: Ember, React, Angular
• Experience in XML, HTML, IIS
• Familiar with Agile methodologies
• Sense of ownership
• Passion for troubleshooting and problem solving
• Detailed oriented, professional, and possesses a positive work attitude
• Communicate professionally both verbally and in writing
• Extensive experience creating high-quality software in a team environment
• Experience leading projects from start to finish
• Experience with test-driven development (TDD) and/or writing and maintaining high-level test coverage, including both unit and integration tests

Kvantum is a career-changing opportunity where you will get to learn the latest and greatest marketing analytics for CPG, Retail, eCommerce, Pharma industry (to name few). At Kvantum, you will be part of a rapidly growing company. You will be able to make your mark; you’ll help write the story.  You will get the chance to go above and beyond, being a hero to your clients and to your team. You will get the chance to make a big impact, applying your coding skills, domain expertise to ready the most innovative marketing science product to Fortune 1000 customers.

What you’ll be doing in your new job:

 As a  Front End/UI Developer at Kvantum you will be working with incredibly talented, optimistic people in an environment that fosters innovation builds trust, and frequently erupts into laughter. You are a natural developer and enjoy helping team members in coding and development. You command respect from your superiors and also from peers. In this role, you’ll demonstrate a proven track record of developing enterprise-grade web frontends using technologies such as JavaScript, Ajax, XHTML and JSON. You'll join a team of exponential application developers who are working hard to develop our next generation SaaS marketing applications.

 Primary Responsibilities includes:

• Develop Proof-of-Concept and prototype applications using new technologies and frameworks. In addition to collaborating with internal teams and clients to create innovative solutions.
• Help establish GUI best practices and JavaScript frameworks for web development.
• Provide context and guidance for integration and implementation of Front-End Interfaces
• Translate wireframes, comps, and functional requirements into functional HTML/ CSS / Javascript.
• Develop standards-compliant mark-up and code for web sites and applications
• Develop JavaScript using standard Frameworks (jQuery, etc.)
• Develop small to medium size custom JavaScript libraries for reuse across the application
• Provide technology and implementation expertise to the domain, projects, or client
• Maintain leading-edge knowledge in emerging technologies and frameworks
• Participate in knowledge sharing and lessons learned sessions from project experiences

For this position, you must have:

• Expert JavaScript/HTML/CSS coding skills.
• 2-4 years of professional experience 
• Minimum 2 years of relevant experience in javascript 
• Minimum 1 year of relevant experience in React.js
• Hands-on experience with the implementation of different design patterns
• Proven experience of developing software using the Agile/SCRUM development methodology
• Command of web standards, CSS based design, cross-browser compatibility
• Experience to optimize the performance of the web application;
• Good understanding of page rendering, DOM manipulation, caching, REST API
• Experience of developing the application using  Test-driven Development(TDD)
• Experience of working on LINUX environment
• Attention to detail, Dedication, and Problem-Solving skills.

Nice to Have: 

• Working experience in any of  these technologies and frameworks: D3.js, Node.js, Express.js, Elasticsearch, GraphQL, Redis
• Experience working with start-ups.
• A good learning curve for new technologies.

We provide a competitive stipend and abundant opportunity for talented people to grow faster. Our people (as we call them Kvants) know how to celebrate success (monthly team events, quarterly company events, employee awards, etc.) and work smart to achieve desired goals.

Disclaimer:

Outside Recruiters: Kvantum prefers to recruit candidates directly. We do not accept unsolicited agency resumes. Please do not contact Kvantum employees with unsolicited resumes. Any resume sent by an outside agency without an explicit signed Kvantum generated agency agreement in place will be considered unsolicited and will not be eligible for payment.