React.js Developer

We are seeking a highly skilled and experienced Senior Front-End Performance Engineer to join our dynamic and innovative development team. The ideal candidate is not only a proficient UI developer but also possesses a deep understanding of performance optimization techniques for web applications. You will be responsible for enhancing the performance, scalability, and user experience of our high-traffic and complex applications. As a Senior Front-End Performance Engineer, you will play a key role in leading a team, collaborating with cross-functional groups, and creatively solving challenging technical problems.

Responsibilities:

• Lead efforts to identify and resolve performance bottlenecks in our front-end applications.
• Optimize existing codebase to enhance loading times, responsiveness, and overall user experience.
• Contribute to enhancing development processes and coding standards, with a focus on performance-oriented practices.
• Showcase strong engineering skills by designing and writing well-organized code. Independently handle medium to large features, completing numerous tasks without the need for constant guidance.
• Possess an in-depth understanding of the assigned codebase, product area, or systems. You initiate and drive necessary changes.
• Evaluate and incorporate open-source tools, libraries, and frameworks to boost development efficiency and performance.
• Demonstrate effective collaboration with other teams (Support/Success, Product, Design, Platform Engineering), understanding how our organization collaborates for tasks like releases and product launches.
• Provide technical leadership and mentor junior team members, guiding them in implementing performance optimization best practices.
• Actively participate in code reviews, offering valuable feedback to ensure code quality and adherence to performance guidelines.

Requirements:

• Bachelor's degree in Computer Science, Software Engineering, or related field (or equivalent experience).
• 5+ years of experience in front-end development with a strong focus on performance optimization.
• Proven track record of successfully optimizing large-scale and complex web applications.
• Proficiency in Vue.js, Webpack, TypeScript, Node.js, and MongoDB is a plus
• Deep understanding of browser rendering behavior, network performance, and caching strategies.
• Experience in leading or mentoring development teams.
• Creative problem-solving skills with the ability to tackle challenging technical issues.
• Strong communication and collaboration skills to work effectively in a cross-functional team environment.
• Familiarity with open-source software development and contributions.
• Up-to-date knowledge of industry trends, best practices, and emerging technologies in front-end development and performance optimization.
• Note: The responsibilities and qualifications mentioned above are representative and not exhaustive, and other tasks and duties may be assigned based on business needs

Responsibilities

• Translate functional requirements into technical design
• Interact with clients and internal stakeholders to understand the visulaisation and platform requirements in detail 
• Design, Develop and Deliver reusable components and front-end libraries
• Translate designs and wireframes into high quality code 
• Optimise components for maximum performance across a vast array of web-capable devices and browsers
• Work closely with QA team and ensure the application is bug-free

Candidate Requirements

• Strong knowledge for charts
• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model
• Thorough understanding of React.js and its core principles
• Experience with popular React.js workflows (such as Flux or Redux)
• Familiarity with newer specifications of EcmaScript
• Experience with data structure libraries (e.g., Immutable.js)
• Knowledge of isomorphic React is a plus
• Familiarity with RESTful APIs
• Knowledge of modern authorization mechanisms, such as JSON Web Token
• Familiarity with modern front-end build pipelines and tools
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• Ability to understand business requirements and translate them into technical requirements
• A knack for benchmarking and optimisation
• Familiarity with code versioning tools (such as Git, SVN, and Mercurial)
• Good understanding of asynchronous request handling, partial page updates, and AJAX4Familiarity with browser testing and debugging

We are looking for a skilled and experienced front-end developer to join our product team. This role requires you to be a tech-savvy contributor in translating the customer needs and user expectations into interactive web apps. You’ll be an exceptional problem solver and take responsible actions in ensuring the application is optimised both in technology and in delivering the best user experience. If you share our passion to create and define interactive web pages, we are happy to hear from you!

What You'll do-

• Work closely with design, product management, and development teams to create elegant, usable, responsive and interactive interfaces across multiple devices.
• Implement UI development principles to ensure that the product client-side serves at scale.
• Review and optimize usage by monitoring key metrics and rectifying the issues proactively.
• Ensure the technical feasibility of UI/UX designs-Turning UI/UX designs into prototypes, creating awesome interactions from designs, writing reusable content modules, and ensuring the maintainability of the code.
• Build reusable code and libraries for future use
• An ability to perform well in a fast-paced environment and bring in optimal flow for rapidly changing design/ technology.

Technical Requirements-

• At least 1 to 3 years of relevant work experience as a web developer, UI developer, JavaScript expert, or a frontend engineer
• Be familiar with Responsive Web Design, common Web UX patterns and anti-patterns
• Be able to tell good design from bad design
• Be able to write clean, maintainable code which others can work on
• Familiar with UI layouts, SASS, bootstrap, and Material UI
• Experience debugging using popular JavaScript-based tools like Chrome Developer Console
• You have mastery in DOM manipulation (including jQuery) and understand components, CTAs
• Know browser behaviour, performance, compatibility and cross-browser issues
• Proficient understanding of code versioning tools, such as Git,
• You take pride in working on advanced CSS, animations and responsiveness
• You seem to have good architectural & design skills
• Ability to own, end to end responsibility - right from the requirement to release
• Ability to produce bug-free and production-grade code
• Be great at debugging, including identifying page speed and performance bottlenecks, using tools like Chrome Dev Tools, React Dev Tools, etc.
• The skills that we consider - CSS, JavaScript, React, Redux, Node.js

Required Skills

• Javascript, ReactJS, Redux, NodeJS, HTML, CSS

Good to have-

• Knowledge of TDD frameworks mocha, chai, jest etc.
• Understanding of Typescript
• Understanding of ReactJS based frameworks like NextJS, Gatsby, etc.
• Understanding of REST API
• Passionate to create good design and usability

Your key responsibilities will be converting PSD/Figma into HTML/CSS. You will also be responsible for writing clean, semantic front end code - HTML5, CSS3, JQuery, Java Script.

Selection Criteria
If your profile has selected then you have to attend a 3 hours assignment to move your candidature to the final round of interview.

• Seek to enhance the user experience by creating seamless navigation through various digital programs and interfaces within the company
• Use coding to develop the aesthetics implemented within a website or product, from the layout menus and drop-down options to colors and fonts
• Combine interface design concepts with digital design and establish milestones to encourage cooperation and teamwork
• Develop overall concepts for improving the user experience within a business webpage or product, ensuring all interactions are intuitive and convenient for customers
• Collaborate with back-end web developers and programmers to improve usability

• 2-4 years of demonstrated experience in creating and implementing UI development
• Detailed experience with coding and the ability to troubleshoot and analyze websites using HTML, CSS and comparable languages
• Continued education and research into UI development trends and current design strategy and technology
• Professional written and interpersonal skills
• Ability to prioritize and manage multiple milestones and projects efficiently
• Advanced problem-solving skills and the ability to optimize code for the best possible outcome
• Ability to work effectively in a collaborative environment to create top-performing interfaces
• Proficient with visual design programs such as Adobe Photoshop

FrontEnd Developer - ReactJs & Angular

Rejolut is among the fastest-growing and award winning Tech companies working on leading technologies namely Blockchain, Machine Learning & Artificial Intelligence, Complex mobile & Web Apps, IoT, etc.Rejolut is a venture-backed company with clients in over several countries namely Malaysia Airlines,gba global,my-earth,biomes, Dlg-hub,etc.

We are looking for Tech geeks having hands-on experience and in love with building scalable, distributed and large web/mobile products and tech solutions. He/She must be an excellent problem solver with passion to self-learn and implement web technologies (frontend + backend). He/She would be responsible for the architecture design, code review, and technology build and deployment activities of the product. 

Responsibilities:

• Proficient in client & server-side JavaScript, HTML5, CSS3 and webpack
• Competent in building single page web applications using Node.js and React Js
• Redux/ Recoil Js for state management
• Universal rendering (Client-side rendering and Server-side rendering)
• Experience with cross-browser, cross-platform, and design constraints on the web
• Experience in developing automated unit and functional tests
• Experience in an agile development process
• Deep knowledge of algorithms and design patterns
• Have a passion for quality and writing clean, readable code that scales and performs well
• Good interpersonal communication skills

Desired Candidate Profile:

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model

• Thorough understanding of React.js and its core principles

• Experience with popular React.js workflows (such as Flux or Redux)

• Familiarity with newer specifications of EcmaScript

• Experience with data structure libraries 

• Knowledge of isomorphic React is a plus

• Familiarity with RESTful APIs

• Knowledge of modern authorization mechanisms

• Familiarity with modern front-end build pipelines and tools

• Experience with common front-end development tools

• Ability to understand business requirements and translate them into technical requirements

• A knack for benchmarking and optimization

• Familiarity with code versioning tools

Rejolut - As a Career Differentiator

 - We are a young and dynamic team who are obsessed with solving futuristic and evolutionary business problems at scale with the next generation technology like blockchain, crypto and machine learning. Focuses on empowering people across the globe to be technically efficient, making advancements in technology and providing new capabilities that were previously thought impossible.

- We provide exposure to higher learning opportunities so that you can work on complex and cutting edge technology like React, React Native, Flutter, NodeJS, Python, Go, Svelte, WebAssembly. Strong expertise in  blockchain and crypto technology and working with the networks like Hedera Hashgraph, Tezos, BlockApps, Algorand, Cardano.

- We maintain high end transparency with clients and employees as Visibility unlocks Efficiency and trust unlocks Visibility.

- Company is backed by two technology Co-founders, well-versed with consumer applications and their work has been downloaded millions of times and have led teams in leadership positions in companies like Samsung, Purplle, Loylty Rewardz.

Benefits :

> Health Insurance

> Work from Home

> Fast growth and more visibility into the company

> Experience to work on the latest technology

> Competitive Learning Environment with supportive co-workers

> Employee friendly HR Policies

> Paid leaves up to certain limits

> Competitive salaries & Bonuses

> Liberal working atmosphere

> Get mentored by the best in the industry

Schedule:

Day Shift/Flexible working hours

Monday to Friday