Sr. AEM Guides Developer

Senior Experience Engineer-React JS

As a Senior Experience Technologist, you’ll be working as part of an agile team with other passionate, driven, and talented people, creating innovative solutions for our clients. Your primary responsibilities will include developing interactive web-based, mobile, and/or desktop applications using Sapient as well as industry best practices to deliver high value and quality to Publicis Sapient clients. 

Your Impact:.

• Technical end-to-end design for stories by collaborating with business analyst/product owner, technical architect, and clients

• Implement stories end-to-end, which includes Frontend, Backends for Frontend (BFF), Caching and service orchestration in some cases) using best engineering practices like test-driven development, SOLID principles and consideration of non-functional requirements like performance, scalability, security or cloud readiness (as applicable) at the story level

• Automates testing at unit, module and integration level as needed using tools relevant for the platform (e.g. Jasmine, Jest, Karma, Webdriver.io etc.)

• Focus on quality by implementing best practices like logging, calling out technical debt, meeting KPIs using code quality tools like SonarQube, ESLint (customize and sync with Sonar), Stylelint/Sasslint and so on.

• Hands-on with automating redundant work, like common component structure, both in terms of scaffolding as well as using the right design patterns / creating abstractions.

• Mentor junior engineers in helping review code, guiding on technical decision making

Your Skills & Experience: 

• 4 to 6 years of Experience on Frontend Technologies

• Hands-on knowledge of HTML5, CSS3, JavaScript

• Hands-on experience working with Object Oriented JavaScript (OOJS), JavaScript - and practical uses in building complex interactive experiences, primarily with ECMAScript 2015+. You should be up to date with new specifications (different stages), and, using transpilers like Babel to use features from all stages

• Good understanding of creational and structural design patterns in JavaScript

• Experience working with Single Page Applications (SPA) with universal rendering capabilities.

• Good understanding of React.js, its core principles - lifecycle methods, virtual DOM etc.

• Understanding of one-way data flow and the Flux architecture.

• Understanding of stateful (container) vs stateless (presentational) components and how to break down the application page into components

• Core understanding of how React’s state management works out of the box.

• Understanding of different CSS architectures that go hand-in-hand with React.js application development. Pros and cons of component-level CSS vs global and where to apply each

• Thorough understanding of Webpack bundler (version 2+).

• Good understanding of the Web Components standard.

• Hands-on experience with building Progressive Web Apps (PWAs) on any framework.

• Hands-on experience with Frontend Performance Optimization – especially in a React application with respect to resource loading strategy, CPU/Memory profiling on the browser.

• Hands-on experience with test-driven development using Jest or equivalent. Familiar with snapshot testing, code coverage. Experience working with utilities like Enzyme

• Experience using fluid grids, and building responsive/adaptive websites using Bootstrap etc.

• Understanding of SEO and accessibility and making it part of the development workflow

Set Yourself Apart With: 

· Logically understands relational databases like MySQL and non-relational databases like MongoDB and can manage to work with it.

· Hands-on experience with GraphQL.

· Hands-on experience working with client-side templating languages like Handlebars, Mustache, etc.

· Hands-on experience with Functional Programming (FP)

· Hands-on experience working with frontend build systems and automating the same using any task runner

· Understanding of hybrid vs native mobile apps – and pros/cons with respect to PWA.

· Hands-on experience working with server-side JavaScript frameworks like Express, Koa, Hapi etc. (based on Node.js

· Good understanding of REST APIs and Microservices. Should have an understanding of how resources are organized and how an application should align based on the same. You are expected to have an understanding of how CRUD operations map to HTTP methods for a well-designed service.

· Hands-on with DevOps pipeline and able to tweak/change build/deployment pipeline as needed in the context of a module (e.g. Jenkins / Travis / Now.sh / Gitlab)

· Experience with configuring Webpack from scratch and working knowhow of Rollup / Parcel.

Benefits of Working Here: 

• Health and Wellness Benefits like Leaves, Insurance, Employee Assistance

• Statutory benefits

• Lifestyle and Financial Planning Benefits

• Learning, Upskilling & Growth Opportunities

• Flexi Work Policy

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.

Key responsibilities: We are seeking a highly motivated and experienced Frontend Developer with a strong focus on React JS. In this role, you will be responsible for developing and implementing user-friendly, high-performance web applications. You will be working closely with our team of designers, developers, and project managers to ensure the successful delivery of high-quality digital products.

Responsibilities:

Develop new user-facing features using React JS

Build reusable components and libraries for future use

Collaborate with design and development teams to ensure the technical feasibility of UI/UX designs

Optimize applications for maximum speed and scalability

Write clean, maintainable, and efficient code

Stay up-to-date with emerging trends and technologies in frontend development

Participate in code reviews and contribute to the improvement of development processes

Communicate effectively with team members to ensure the timely completion of projects

Troubleshoot and debug issues that arise in production environments

Bachelor's degree in Computer Science or a related field

At least 3 years of experience in frontend development, with a strong focus on React JS

Proficient in HTML, CSS, and JavaScript

Familiarity with Git and Agile development methodologies

Experience with RESTful APIs and integration with backend systems

Strong problem-solving skills and attention to detail

Excellent written and verbal communication skills

Ability to work independently and as part of a team

Portfolio of previous work demonstrating proficiency in React JS

This is a full-time position with competitive salary and benefits. If you have a passion for frontend development and are highly skilled in React JS, we encourage you to apply for this exciting opportunity to join our team.

• 4+ years experience working as a react.js developer.
• Knowledge of REACT tools including React.js, Webpack, Enzyme, Redux, and Flux.
• In-depth knowledge of JavaScript, CSS, HTML, and front-end languages.
• 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.

• You have a minimum of 6 years of experience building high-performance consumer-facing mobile applications at Product companies of a decent scale.
• You have founded/worked in a start-up and have worked in an enterprise environment You have a keen eye for mobile architecture and have led/participated in architectural discussions.
• You have a passion for mentoring and helping people on your team grow and achieve their goals and work with cross teams.
• You practice test-driven development and you are able to drive agile practices.
• You have worked with multiple languages/frameworks and have expertise in any one programming language/framework/stack.
• You have published reusable packages.
• You have worked with building automation, devise farms, multi-target testing.
• You are able to optimize the application for performance and speed.
• You are an excellent collaborator & communicator.
• You know that start-ups are a team sport.
• You listen to others, aren’t afraid to speak your mind and always try to ask the right questions.
• You are excited by the prospect of working in a distributed team and company

Tech Stack

• HTML5 (DOM)
• CSS 3
• Javascript (E6)/Typescript
• React Native/React/Angular/NativeScript/Vue
• In-depth knowledge of how frameworks works
• GraphQL
• Javascript ecosystem
• Linters
• Code formatters
• Transpilers
• Bundlers
• Testing tools(Jest, Enzyme)
• You are comfortable with caching, performance optimization, etc
•  You are comfortable with native mobile development
• Java/Kotlin/Android
• Swift/iOs

• Ensure the technical feasibility of UI/UX designs
• Optimize application for maximum speed and scalability
• Assure that all user input is validated before submitting to back-end
• Use markup languages like HTML to create user-friendly web pages
• Design mobile-based features
• Collaborate with back-end developers and web designers to improve usability
• Maintain and improve website
• Develop new user-facing features
• Build reusable code and libraries for future use
• Optimize applications for maximum speed
• Get feedback from, and build solutions for, users and customers
• Write functional requirement documents and guides
• Create quality mockups and prototypes

• Proven work experience of 2+ years as a Front-end developer
• 1+ years experience of working in ReactJS
• Hands on experience with markup languages, including HTML5, CSS3
• Experience with JavaScript, CSS and jQuery
• Good understanding of asynchronous request handling, partial page updates, and AJAX
• Familiarity with browser testing and debugging
• In-depth understanding of the entire web development process (design, development and deployment)
• Understanding of layout aesthetics
• Knowledge of SEO principles
• Familiarity with software like Adobe Suite, Photoshop and content management systems
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