Senior Frontend Engineer

Position Title : Frontend / Chrome Extension Developer (React + TypeScript)

Experience : 3+ years

Location : Remote

Job Role Summary :

Build and ship production-ready Chrome extensions that inject UI into existing web apps. Own content scripts, DOM integration, performance, and accessibility (WCAG 2.1 AA).

Mandatory Skills :

React, TypeScript, Chrome Extensions (MV3), Content Scripts, DOM Injection, MutationObserver, TailwindCSS/CSS Modules, Accessibility (WCAG 2.1 AA).

Key Responsibilities :

• Develop Chrome extensions using React + TypeScript.
• Inject and manage UI components within third-party web app DOMs.
• Write and maintain content scripts; handle dynamic pages via MutationObserver.
• Implement clean, responsive styling with TailwindCSS or CSS Modules.
• Ensure accessibility (WCAG 2.1 AA), keyboard navigation, and ARIA semantics.
• Integrate with APIs, manage extension permissions, storage, and messaging.
• Optimize performance, handle edge cases across sites, and write basic tests.

Required Skills :

• Strong React + TypeScript in production.
• Chrome Extension architecture: manifest v3, content/background scripts, messaging, permissions.
• DOM manipulation and safe UI injection strategies.
• MutationObserver, event delegation, handling SPA route changes.
• TailwindCSS or CSS Modules; solid CSS fundamentals.
• Accessibility (WCAG 2.1 AA) and cross-browser compatibility (Chromium/Firefox optional).
• Familiarity with build tooling (Vite/Webpack), linting, and Git.

Nice-to-Have :

• Experience with service workers, storage (sync/local), and i18n.
• Testing with Jest/RTL/Playwright.
• Security basics for extensions (CSP, sandboxing).

As a Frontend Engineer with a focus on Next.js and React, you will focus on fixing UI bugs and building new features

Position: Frontend Engineer (Next.js/React)

Location: Hyderabad

Type: Part-time, Remote

Responsibilities:

• Develop user-facing features and components using Next.js and React
• Optimize existing components
• Update packages
• Identify and address performance bottlenecks and troubleshoot UI issues

Qualifications:

Proficiency in Next.js and React.js is a must

Strong understanding of HTML5, CSS3, and JavaScript (ES6+)

Experience working with RESTful APIs and GraphQL

Familiarity with version control systems such as Git

Experience with state management libraries (e.g., Redux, MobX) is a plus

Knowledge of build tools like Webpack and Babel

Excellent problem-solving skills and attention to detail

Ability to work independently and as part of a team in an agile environment

At Sudoviz, you will work closely with Product Management, Frontend, Backend engineers, and Data scientists that work hard to ensure that Sudoviz's products and platforms are helping our customer's most pressing security problems through intuitive and creative UI solutions.

You will develop secure, and well-tested, and performant features.

As a UI Rockstar, you will craft and code our internal standards for style, maintainability and document best practices for a high-scale web environment. You will maintain and advocate standards through peer code review while consistently shipping incremental features and improvements with minimal guidance.

You will own end-to-end delivery of product features, learn, collaborate and help train other Frontend Engineers joining the team.

Frontend Developer Responsibilities:

• Outstanding Professional experience with React, VueJS, and other modern JavaScript web frameworks such as Angular, Ember, etc
• Experience with writing automated tests using Jest, Karma, Jasmine, Mocha, AVA, tape, etc
• A solid understanding of JavaScript
• Core web and browser concepts (eg. how browsers work? how the rendering engine constructs a website page
• Reviewing application requirements and interface designs.
• Identifying web-based user interactions.
• Experience with user interface design
• Developing and implementing highly responsive user interface components using React concepts.
• Developing and implementing frontend architecture to support user interface concepts.
• Design an architecture to support complex data labeling and filtering from multiple sources
• Research how to optimally model and display multidimensional data (e.g. D3 graphs and complex tables)
• Build a framework to support a user-friendly querying language
• Build a comprehensive UI dashboard from the ground up
• Team player - collaborate with Product Designers and Product Managers in order to develop an incredible user experience

Must have

• Excellent communication and documentation skills
• Bachelor's degree in Computer Science
• Good project management skills
• In-depth knowledge of JavaScript, CSS, HTML, and frontend languages.
• Knowledge of REACT tools Webpack, Enzyme, Redux, and Flux.
• Knowledge of performance testing frameworks, including Mocha and Jest.
• Experience with browser-based debugging and performance testing software

Nice to have

• Master's in Computer Science or equivalent/similar
• Monitoring and improving frontend performance.
• Experience in peak performance organizations/product companies
• Experience working with a remote team with a global culturally diverse team
• Passion for open source

Communication

• Proficiency in Written and Verbal communication for success in a remote asynchronous collaboration work environment
• Clearly and concisely communicate about complex technical, architectural problems

Mindset

• Positive solution-oriented mindset with demonstrated ability to onboard and integrate with an organization long-term
• Ability to achieve consensus with peers and clearly share status updates
• Self-motivated and Self managing individual with excellent organizational skills

About the position

We're looking for an experienced and motivated Frontend Developer to join our growing Engineering department. As a Frontend developer you will work closely with the founding team on building an exciting and unique new AppSec management tool. The ideal candidate will be able to work both independently and in a team, collaborating with other team members in product, UX/UI and R&D. It’s a great opportunity to join at an early stage and help shape the future of Application Security Posture Management.

Requirements:

• At least 3 years of experience in web development
• Expert-level JavaScript skills
• Advanced experience with React and Redux

We are seeking a talented and experienced Frontend Developer to join our on-site team full time. As a Frontend Developer, you will be responsible for developing user-friendly, responsive and high-performance web applications.

Responsibilities:

• Develop responsive and user-friendly web applications.
• Collaborate with designers and other developers to implement visual designs and user interface elements.
• Optimize web applications for maximum speed and scalability.
• Write clean, maintainable and reusable code.
• Participate in code reviews and ensure code quality.
• Troubleshoot and debug issues as they arise.
• Stay up-to-date with emerging trends and technologies in frontend development.

Requirements:

• 1 year of experience as a Frontend Developer.
• Proficient in HTML, CSS, and JavaScript.
• Familiarity with modern frontend frameworks like React, Nextjs.
• Experience with CSS preprocessors like Sass or LESS.
• Knowledge of responsive web design and cross-browser compatibility.
• Understanding of version control systems like Git.
• Ability to work in a collaborative environment.
• Excellent problem-solving and analytical skills.

If you are a self-starter who is passionate about frontend development and looking for a challenging opportunity, please apply with your resume and a cover letter explaining your experience and why you are the best fit for this role. This is an on-site, full-time position.

LogiNext is looking for a technically savvy and experienced Engineering Leader to take up front-end development efforts. You will design and develop elegant interfaces that exceed client expectations in terms of value and benefit. You will collaborate on scalability issues involving visualizing massive amounts of data and information. You will identify, define and communicate best practices for front end.

You are passionate about building secure, high-performing and scalable front-end applications. Your design intuition inclines towards usability, elegance and simplicity. You are biased towards open-source tools and existing frameworks. You have demonstrated strong inter-personal and communication skills.

Responsibilities

• Lead and direct UI/UX team, define software architecture, collaborate with other teams to explore existing systems, determine areas of complexity and potential risks to successful implementation of advanced visualization products
• Define software architecture, collaborate with other teams to explore existing systems, determine areas of complexity and potential risks to successful implementation of advanced visualization products
• Translate wireframes into functional requirements, write well-abstracted, reusable, high-performance code for UI components
• Work closely with design, product management and development teams to create elegant, usable, responsive and interactive interfaces
• Contribute to continual improvement by suggesting improvements to user interface, software architecture or new technologies
• Optimize web applications to maximize speed and scale. Support diverse clients from high-powered desktop computers to low-end mobile devices
• Understand and coach/teach others, show a high level of ethics and team-work

 Requirements

• Bachelor/Master’s degree in Computer Science, Information Technology or a related field
• 10+ years of experience in developing responsive, elegant, efficient and cross-browser front-end applications
• Hands on experience on various MVC frameworks, UI libraries and tools such as Angular, ReactJS, HTML5, CSS3, D3.js
• Hands on experience on Map API’s like Google Maps, Openstreetmap and other powerful information-rich maps
• Familiar with UX processes and design
• Proven ability to drive large scale projects with deep understanding of Agile SDLC, high collaboration and leadership
• Excellent written and oral communication skills, judgment and decision making skills

Job title: React.js Developer 

Location: Gurugram (Onsite)

Notice: Immediate joiner 

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, 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.

• Basic knowledge of Data Structure and Algorithm required

We are looking to hire a Full-time, Remote (India) Frontend engineer to help create a SAAS product from the ground up in a niche industry.
This will be the v2.0 of an existing legacy platform with paying customers. This position is within the first few hires in the founding team of the revamped company.
We are on a mission to build a truly world-class product and deliver at high speeds with high quality.

Read on and apply for the job if you are a doer, likes no BS, think you're competent enough to get things done, want some quiet time every day, want to make a difference, values work-life balance, and enjoy life outside work.

Experience - At least 5 years building scalable SAAS applications in the cloud. It would be great to showcase anything progressive. Education from premier institutions, git contributions, tech blogs, volunteering, pet projects, etc.

Responsibilities -
- Architect, write, deploy and own the (SAAS) product from a technical frontend standpoint working closely with backend engineers and designers
- Create and deliver the product end-to-end all the way to the user
- Write highly performant code and continuously measure performance and make the application better based on benchmarks
- Debug production issues and keep the application quality high always
- Assist with hiring more people when the team grows
- Pick up any appropriate work as in any early-stage company

General Skills Needed -

- Create state-of-the-art user experiences including complex dashboards, pdf reports, complex graphs delivering the end-to-end implementation all the way to the user
- Should be able to build and deploy multi-tenant SAAS applications end to end
- Need to have a technology-agnostic mindset. Should be able to easily pick up any new technology based on the use case
- Should be an expert software craftsman/craftswoman. Must own the code and be proud of what you build
- Write well thought out, well-tested code with extensive unit tests and integration tests so that the addition of future features is easy.
- Must know cloud deployment concepts and be comfortable working on CI/CD pipelines, cost-effective cloud deployment strategies. AWS experience highly preferred
- Must be able to design and architect simple, market-tested yet highly scalable solutions
- Must be able to quickly iterate and produce working software at a high speed. Must not be shy to scrap and rebuild when there is a need
- Must be appreciative of documentation and write well-documented code and technical documentation alongside

Technical Skills Needed -
- Expert level knowledge in JavaScript, HTML, CSS, and modern web development standards and frameworks (React preferred/Angular/Vue/etc)
- Expert level knowledge in the appropriate frameworks

1. React (preferred), Angular, Vue, or other modern frontend frameworks
2. Integrating with Rest APIs
3. PostgreSQL, MySQL, any NoSQL or other database technology

- Expertise in data presentation and reporting - creating beautiful reports and graphs in the UI based on the data collected by the backend
- Must have a great level understanding of various frameworks on authentication and authorization, billing and metrics
- Must have some knowledge in creating cost-efficient and scalable cloud deployments (AWS preferred) and be ready to learn
- Expert level knowledge in industry-standard design patterns and tools