JavaScript Frontend Jobs

Senior UI Developer - Barclays Responsibilities: Join us as a Senior UI Developer at Barclays, where you will be responsible for supporting the successful delivery of location strategy projects to plan, budget, agreed quality and governance standards. You'll spearhead the evolution of our digital landscape, driving innovation and excellence. You will harness cutting-edge technology to revolutionise our digital offerings, ensuring unparalleled customer experiences. To be successful as a Senior UI Developer you should have experience with: Core Java Proficiency: Strong understanding of Java language fundamentals, including syntax, data structures, and object-oriented programming (OOP) principles. Frameworks: Experience with popular Java frameworks such as Spring (including Spring Boot) and hibernate. Databases: Familiarity with both relational (SQL) and NoSQL databases. Version Control: Proficiency with version control systems like Git. Testing: Knowledge of unit testing frameworks like JUnit. Problem Solving: Strong analytical and troubleshooting skills to resolve technical issues effectively. OOP: Solid grasp of object-oriented programming concepts (inheritance, encapsulation, polymorphism, etc.) and design patterns. Communication & Teamwork: Ability to collaborate effectively with other developers and stakeholders and communicate technical concepts clearly. Some Other Highly Valued Skills May Include Cloud Computing: Experience with cloud platforms like AWS, Google Cloud. CI/CD: Understanding of continuous integration and continuous delivery pipelines. Front-end: Familiarity with front-end technologies like HTML, CSS, and JavaScript. Microservices: Experience with microservices architecture. Agile Methodologies: Knowledge of agile development practices. Web Frameworks: Experience with web frameworks like Struts, Spring MVC, or JSF. Design Principles: Understanding of design principles like SOLID, DRY. Architectural Patterns: Familiarity with architectural patterns like Singleton, and Factory. Building Tools: Knowledge of build tools like Maven, Gradle, or Ant. Markup Languages: Experience with markup languages like XML and JSON. JVM: Basic knowledge of the Java Virtual Machine. Application Servers: Experience with application servers like Tomcat or JBoss. You may be assessed on key critical skills relevant for success in role, such as risk and controls, change and transformation, business acumen, strategic thinking and digital and technology, as well as job-specific technical skills. This role is based out of Pune. Purpose of the role To design, develop and improve software, utilising various engineering methodologies, that provides business, platform, and technology capabilities for our customers and colleagues. Accountabilities Development and delivery of high-quality software solutions by using industry aligned programming languages, frameworks, and tools. Ensuring that code is scalable, maintainable, and optimized for performance. Cross-functional collaboration with product managers, designers, and other engineers to define software requirements, devise solution strategies, and ensure seamless integration and alignment with business objectives. Collaboration with peers, participate in code reviews, and promote a culture of code quality and knowledge sharing. Stay informed of industry technology trends and innovations and actively contribute to the organization’s technology communities to foster a culture of technical excellence and growth. Adherence to secure coding practices to mitigate vulnerabilities, protect sensitive data, and ensure secure software solutions. Implementation of effective unit testing practices to ensure proper code design, readability, and reliability. Assistant Vice President Expectations To advise and influence decision making, contribute to policy development and take responsibility for operational effectiveness. Collaborate closely with other functions/ business divisions. Lead a team performing complex tasks, using well developed professional knowledge and skills to deliver on work that impacts the whole business function. Set objectives and coach employees in pursuit of those objectives, appraisal of performance relative to objectives and determination of reward outcomes If the position has leadership responsibilities, People Leaders are expected to demonstrate a clear set of leadership behaviours to create an environment for colleagues to thrive and deliver to a consistently excellent standard. The four LEAD behaviours are: L – Listen and be authentic, E – Energise and inspire, A – Align across the enterprise, D – Develop others. OR for an individual contributor, they will lead collaborative assignments and guide team members through structured assignments, identify the need for the inclusion of other areas of specialisation to complete assignments. They will identify new directions for assignments and/ or projects, identifying a combination of cross functional methodologies or practices to meet required outcomes. Consult on complex issues; providing advice to People Leaders to support the resolution of escalated issues. Identify ways to mitigate risk and developing new policies/procedures in support of the control and governance agenda. Take ownership for managing risk and strengthening controls in relation to the work done. Perform work that is closely related to that of other areas, which requires understanding of how areas coordinate and contribute to the achievement of the objectives of the organisation sub-function. Collaborate with other areas of work, for business aligned support areas to keep up to speed with business activity and the business strategy. Engage in complex analysis of data from multiple sources of information, internal and external sources such as procedures and practises (in other areas, teams, companies, etc).to solve problems creatively and effectively. Communicate complex information. 'Complex' information could include sensitive information or information that is difficult to communicate because of its content or its audience. Influence or convince stakeholders to achieve outcomes. All colleagues will be expected to demonstrate the Barclays Values of Respect, Integrity, Service, Excellence and Stewardship – our moral compass, helping us do what we believe is right. They will also be expected to demonstrate the Barclays Mindset – to Empower, Challenge and Drive – the operating manual for how we behave. … more

Role Description: Lead UI Developer responsible for frontend architecture, development, team leadership, and cross-functional collaboration at QuinStreet. Responsibilities: - Define and implement scalable React frontend architecture, establish coding standards, and optimize performance. - Develop and maintain production-grade React applications, translating UX designs into code. - Lead, mentor, and grow a team of frontend engineers, ensuring delivery timelines and quality. - Collaborate with Product Managers, UX Designers, and Backend Engineers to translate business requirements. - Identify and resolve performance bottlenecks, ensure adherence to CI/CD pipelines, and maintain technical documentation. Requirements: - 8+ years of software development experience. - 5+ years of hands-on experience with React.js. - 3+ years in frontend architecture/design. - Proficiency in JavaScript (ES6+), TypeScript, React (Hooks, Context API, Redux), REST APIs. - Experience with component libraries, design systems, web performance optimization, responsiveness, accessibility standards. - Experience with micro-frontends, cloud platforms (AWS/GCP/Azure), and mobile app development (React Native). - Proven leadership and soft skills including team mentoring, ownership, communication, and stakeholder management. Location & Job Type: - Full-time position at QuinStreet. Additional Details: - Opportunity to shape frontend architecture at scale. - Work with cross-functional teams on impactful products. - Culture emphasizing innovation, ownership, and continuous learning. - Competitive compensation and growth opportunities.

Frontend Developer(React/SolidJS) (3 to 7 Years) - Airtel Digital Responsibilities: • Design, build, and maintain frontend applications using React and/or SolidJS. • Write UI components that are reusable and easy for others to maintain. • Integrate REST APIs and asynchronous data sources. • Debug and fix frontend bugs. • Profile and improve rendering, memory use, and startup time. • Review teammates' code and take part in architecture discussions. What we're looking for Hands-on experience with: • React or SolidJS • TypeScript • JavaScript (ES6+) • Node.js A working understanding of: • Data structures and algorithms • Asynchronous programming • API integration and state management • Component-driven architecture • Common frontend design patterns • Cross-browser behaviour and responsive layoutNice to have • LightningJS, or another rendering framework aimed at constrained hardware • HTML5 Canvas, WebGL, or GPU-accelerated rendering • Development for Smart TVs, set-top boxes, Android TV, Fire TV, Tizen, or webOS • Video streaming, including HLS, MPEG-DASH, adaptive bitrate streaming, and DRM systems like Widevine and PlayReady • Rendering pipelines, texture management, and animation performance • Optimisation for low-memory or otherwise limited devices • Good Knowledge of Web Assembly, Service Workers, or Web Workers • Browser internals, including paint and layout performance • Video player integration and s … more Requirements: React or SolidJS Frontend Engineer: We are hiring a frontend engineer to work on our web and connected TV applications. The work spans building new features and maintaining the existing app, with a focus on performance. You will work with product, design, and backend engineers. Full job description: React or SolidJS Frontend Engineer: We are hiring a frontend engineer to work on our web and connected TV applications. The work spans building new features and maintaining the existing app, with a focus on performance. You will work with product, design, and backend engineers. What you'll do • Design, build, and maintain frontend applications using React and/or SolidJS. • Write UI components that are reusable and easy for others to maintain. • Integrate REST APIs and asynchronous data sources. • Debug and fix frontend bugs. • Profile and improve rendering, memory use, and startup time. • Review teammates' code and take part in architecture discussions. What we're looking for Hands-on experience with: • React or SolidJS • TypeScript • JavaScript (ES6+) • Node.js A working understanding of: • Data structures and algorithms • Asynchronous programming • API integration and state management • Component-driven architecture • Common frontend design patterns • Cross-browser behaviour and responsive layoutNice to have • LightningJS, or another rendering framework aimed at constrained hardware • HTML5 Canvas, WebGL, or GPU-accelerated rendering • Development for Smart TVs, set-top boxes, Android TV, Fire TV, Tizen, or webOS • Video streaming, including HLS, MPEG-DASH, adaptive bitrate streaming, and DRM systems like Widevine and PlayReady • Rendering pipelines, texture management, and animation performance • Optimisation for low-memory or otherwise limited devices • Good Knowledge of Web Assembly, Service Workers, or Web Workers • Browser internals, including paint and layout performance • Video player integration and s … more