React.js Developer

Job Overview:

We are looking for a skilled and experienced React developer to join our web development

team. You will play a key role in designing and developing modern, scalable single-page

applications using React and related technologies. You will collaborate with cross-functional

teams, contribute to architectural decisions, and guide junior developers while remaining

hands-on with code.

Key Responsibilities:

● Design, develop, and maintain enterprise-grade React applications.

● Collaborate with UI/UX designers, product owners, and backend developers to deliver

efficient solutions.

● Contribute to and maintain scalable architecture and reusable component libraries.

● Ensure performance, accessibility, and responsiveness of applications.

● Review code and mentor junior developers, promoting best practices and clean code.

● Participate in sprint planning, technical discussions, and continuous improvement

initiatives.

● Research and propose modern frontend technologies and tools for future adoption.

● Create and maintain technical documentation.

Required Skills and Qualifications:

● 7+ years of experience in front-end development, with strong expertise in React and

Redux.

● Hands-on experience building Single Page Applications (SPA).

● Proficiency in JavaScript (ES6+) and TypeScript.

● Familiarity with frontend tooling: Webpack, Babel, ESLint, NPM/Yarn.

● Solid understanding of RESTful APIs, browser internals, and HTTP.

● Exposure to RxJS or similar reactive programming libraries is a plus.

● Should have experience in Hooks concepts.

● Familiarity with REDUX Middlewares like Saga or Redux Thunk.

● Knowledge of testing frameworks like Jest, React Testing Library, Cypress, etc.

● Experience working in Agile/Scrum teams.

● Strong communication and teamwork skills.

● Bachelor’s degree in Computer Science or a related field.

● Experience leading small teams or mentoring junior developers.

● Familiarity with CI/CD pipelines and code quality tools.

● Knowledge of accessibility (WCAG), internationalization (i18n), and performance tuning.

● Contributions to architectural decisions or project planning.

About the Role

We're seeking a talented Frontend Developer to join our engineering team. You'll be responsible for building and maintaining high-quality web applications, collaborating with designers and backend developers to create seamless user experiences.

Key Responsibilities

Development & Implementation

• Build responsive, performant web applications using modern JavaScript frameworks (React, Vue, or Angular)
• Write clean, maintainable, and well-documented code following best practices and coding standards
• Implement pixel-perfect UI designs from mockups and wireframes
• Optimize applications for maximum speed and scalability across devices and browsers
• Integrate RESTful APIs and work with backend teams to define API requirements

Collaboration & Communication

• Work closely with UX/UI designers to translate designs into functional interfaces
• Participate in code reviews and provide constructive feedback to team members
• Collaborate with backend developers to ensure seamless integration between frontend and backend systems
• Contribute to technical discussions and help make architectural decisions

Quality & Maintenance

• Write and maintain unit and integration tests to ensure code quality
• Debug and troubleshoot issues across different browsers and devices
• Stay current with emerging frontend technologies and best practices
• Improve existing codebases through refactoring and optimization

Required Qualifications

• 2-5 years of professional experience in frontend development
• Strong proficiency in HTML5, CSS3, and JavaScript (ES6+)
• Solid experience with at least one modern JavaScript framework (React, Vue, Angular)
• Understanding of responsive design principles and mobile-first development
• Experience with version control systems (Git)
• Familiarity with CSS preprocessors (Sass, Less) or CSS-in-JS solutions
• Knowledge of modern build tools and package managers (Webpack, Vite, npm/yarn)
• Understanding of web performance optimization techniques
• Strong problem-solving skills and attention to detail

Preferred Qualifications

• Experience with TypeScript
• Knowledge of state management libraries (Redux, Vuex, Zustand)
• Familiarity with testing frameworks (Jest, React Testing Library, Cypress)
• Understanding of CI/CD pipelines
• Experience with design systems and component libraries
• Knowledge of accessibility standards (WCAG)
• Experience with Agile/Scrum methodologies
• Portfolio or GitHub profile showcasing relevant projects

Headless Development: Lead the frontend development of our Shopify app, including

building new features, revamping existing functionalities, and optimising performance.

User Interface Design: Collaborate with the design team to implement responsive,

pixel-perfect UI components that align with our brand’s aesthetic and provide an intuitive

user experience.

Custom Theme Development: Create and customise Shopify themes to enhance the

visual appeal and functionality of our online store, ensuring compatibility with various

devices and browsers.

Integration and API Management: Work with third-party APIs and Shopify's API to integrate

necessary functionalities, such as payment gateways, shipping solutions, and marketing

tools.

Performance Optimization: Continuously monitor and improve the app’s performance,

ensuring fast load times, seamless navigation, and a smooth user experience.

Collaboration: Work closely with cross-functional teams, including backend developers,

designers, marketers, and product managers, to deliver high-quality solutions on time.

Code Review and Best Practices: Maintain clean, modular, and reusable code. Participate

in code reviews and ensure adherence to best practices in frontend development.

Troubleshooting and Debugging: Identify and resolve issues, bugs, and performance

bottlenecks in a timely manner to ensure a seamless user experience.

Documentation: Create and maintain comprehensive documentation for code, processes,

and development workflows.

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

What are we looking for:

1. We are looking for someone that has an eye for design, solid experience in ReactJS, are value-driven and product-oriented. You will own all phases of user interface development.
2. From architecture and design to implementation and customer engagement. This role isn’t just about coding; it's about owning features end-to-end, translating them from concepts to user-centric products
3. Each engineer owns the feature they are building and is responsible for turning it into reality, and we will need your front-end expertise to find solutions to problems and challenges and deliver on roadmap objectives.
4. 4+ years of experience in web frontend technology, including React, TypeScript, and CSS-in-JS.
5. Significant experience with JavaScript frameworks and client-side state management, particularly React.js and Redux.
6. Knowledge of 2D visualization libraries like D3 and 3D visualization tools such as Three.js and WebGL is a plus.
7. Expertise in developing solutions for complex problems and integrations, with a strong product sense to balance technical and product requirements.
8. Skilled in working collaboratively with cross-functional teams, including design, product, tech, learning experience & marketing.
9. Independent and capable of producing 'production ready' code with minimal guidance.
10. Proficient in performance optimization and CDN caching strategies.
11. Nice to have: Full stack experience working in backend.

Role:

• Developing a good understanding of the solutions which Company delivers, and how these link to Company’s overall strategy.
• Making suggestions towards shaping the strategy for a feature and engineering design.
• Managing own workload and usually delivering unsupervised. Accountable for their own workstream or the work of a small team.  
• Understanding Engineering priorities and is able to focus on these, helping others to remain focussed too
• Acting as the Lead Engineer on a project. Helps ensure others follow Company processes, such as release and version control.
• An active member of the team, through useful contributions to projects and in team meetings.
• Supervising others. Deputising for a Lead and/or supporting them with tasks. Mentoring new joiners/interns and Masters students. Sharing knowledge and learnings with the team.

Requirements:

• Acquired strong proven professional Front End Development experience.
• Proven track record and experience working on Javascript and front end frameworks like React (preferred) and Angular
• Knowledge and experience working with Node.js, Go or any other back end programming language is a plus .
• Experience of turning UI/UX designs to applications and keen interest in the UI/UX side of an application. 
• Able to build prototypes quickly and work with the product teams to test a concept. 
• Demonstrable experience in building front end or UI/UX development practices in previous jobs. 
• Building and implementing a product on cloud based infrastructure.
• Good understanding of Microservice Architecture, Cloud Technologies, CI/CD and Serverless.
• Ability to document requirements and specifications.
• A naturally inquisitive and problem-solving mindset.
• Strong experience in using Agile Methodologies such as Kanban or Scrum to build quality software.
• Good communication skills.