React.js Developer

SENIOR ENGINEER FRONTEND JOB DESCRIPTION

To lead the development of robust, scalable, and visually engaging frontend applications that deliver exceptional user experiences. The Senior Engineer – Frontend will drive architectural decisions,

implement best practices in UI/UX, and ensure seamless integration with backend systems. This role focuses on building high-performance, maintainable interfaces while mentoring junior engineers and

contributing to the continuous improvement of the overall product development process.

Responsibilities:

• Partner closely with Product Owner and tech lead to discover, design, develop and deploy

great financial tools and products that provide meaningful value to our customers.

• Develop,Unittests and deploy components.

• IntegrateUI application with restAPIs.

• Primary technologies focused on modern front-end - Advanced JS ES6, React, Redux, Angular Js and other modern JS frameworks,HTML/CSS.

• Troubleshoot and resolve issues in development ,testing, and production environments.

• Stay up to date with emerging technologies and industry trendsto continuously improve our tech

stack.

• Mentor andguide junior engineers,fostering a culture oflearning and growth.

Requirements:

• Bachelor’s degree in computerscience, Engineering, or a related field (or equivalent

experience).

• 4 to 8 years of practical experience and proven success with the design, development and

operation of complex web applications.

• Strong experience with modern and vanilla JavaScript and Typescript techniques

including JSX and ES6/ES7 features

• Familiarity connecting to microservices, REST APIs, graph APIs, and other database- driven

web applications

• Experiencewiththird-party librariesandAPIs

• Asynchronous programming including Promises, async/await, andES7generators

• Knowledge ofmodern authorizationmechanisms,such asJSONWebToken

• Familiaritywithmodernfront-end build pipelines andtools

• Experience with common front-end developmenttoolssuch as Babel,Webpack,NPM, etc.

• Broad technical knowledge across a majority, with deeper knowledge in,the following: Web

applicationdevelopment, Softwareengineeringand/ortesting;Data analysis.

• Excellentproblem-solving skillsandtheability toworkina fast-pacedenvironment.

• Strong communication and teamwork skills.

Good to have:

• Experience inNode Jsis aplus

• Experience inDatabases(MySQL,Postgres)willbeaplus

• Understandingof RESTfulservices

AboutAlbertInvent

Albert Invent is a cutting-edge AI-driven software company headquartered in Oakland, California, on a mission to empower scientists and innovators in chemistry and materials science to invent the future faster. Every day, scientistsin 30+ countries use Albert to accelerate RCD with AI trained like a chemist,bringing better products to market, faster.

Responsibilities:

- Design, develop, and maintain highly interactive and responsive web applications using AngularJS 14.

-  Write clean, maintainable, and well-documented code that adheres to best practices.

- Leverage Tailwind CSS for rapid UI development and ensure consistent design across the application.

- Implement user interface components and features according to design specifications.

- Integrate with backend APIs and services to retrieve and manipulate data.

- Optimize application performance for a smooth user experience across all devices and browsers.

- Conduct unit testing and participate in integration testing to ensure code quality.

- Collaborate with designers, backend engineers, product managers, and other stakeholders throughout the development lifecycle.

- Stay up-to-date with the latest advancements in frontend technologies and frameworks.

-Contribute to the improvement of existing frontend development processes and documentation.

Qualifications:

-  Strong understanding of AngularJS 14 architecture, components, directives, and services.

-  Proficiency with HTML5, CSS3, and JavaScript (ES6+).

-  In-depth knowledge of Tailwind CSS and its utility classes for rapid UI development.

- Experience with responsive web design (RWD) principles and best practices.

- Understanding of web accessibility guidelines (WCAG).

- Familiarity with unit testing frameworks (e.g., Jasmine, Karma) is a plus.

-  Experience with build tools (e.g., Webpack) is a plus.

-  Excellent problem-solving and analytical skills.

-   Strong attention to detail and a passion for creating pixel-perfect user interfaces.

-   Excellent communication and collaboration skills.

A proactive and results-oriented individual with a strong work ethic.

We are looking for a React JS/React-Native developer interested in building performant and pixel-perfect web applications. You will be responsible for architecting and building these applications, as well as coordinating with the teams responsible for other layers of the product infrastructure. Building a product is a highly collaborative effort, and as such, a strong team player with a commitment to perfection is required.

Responsibilities

• Build pixel-perfect, buttery smooth UIs across both web and mobile platforms.
• Diagnose and fix bugs and performance bottlenecks for performance that feels native.
• Reach out to the open-source community to encourage and help implement mission-critical software fixes—ReactJS moves fast and often breaks things.
• Maintain code and write automated tests to ensure the product is of the highest quality.
• Build and deliver features end to end. (frontend and backend)

Skills

• Firm grasp of the JavaScript and TypeScript language and its nuances, including ES6+ syntax
• Knowledge of functional or object-oriented programming
• Ability to write well-documented, clean Javascript code
• Rock solid at working with third-party dependencies and debugging dependency conflicts
• Understanding of Firebase cloud functions, firestore and offline storage
• Experience with automated testing suites, like (Jest or Mocha)

Requirements:

• Strong proficiency in JavaScript, including DOM manipulation and the JavaScript object model.
• Experience with Core web fundamentals: HTML, JavaScript, and CSS like Sass or LESS
• Thorough understanding of ReactJS and its core principles.
• Experience with popular ReactJS state management such as Redux or Flux
• Familiarity with newer specifications of EcmaScript (ES6+)
• Familiarity with RESTful APIs consumption
• Experience with common front-end development tools such as Babel, Webpack, NPM, etc.
• Ability to understand business requirements and translate them into technical requirements
• Familiarity with code versioning tools such as GitLab, Bitbucket
• Must be passionate about writing clean, efficient, and maintainable code
• Self-starter with the ability to cope with sharp learning curves.
• Excellent teamwork skills,
• Good Communication skill

Good to have:

• Familiarity with NextJs framework.
• Experience with Unit Testing with Jest
• Typescript
• GetsByJS
• Modern front-end build pipelines and tools GitLab or Jenkins
• CI-CD Using GitLab or Jenkins

• Web-based portal development for end to end process management
• Work with the real-time feedback from users to make the product better
• Discover, design, develop, deploy, debug. Repeat! In highly agile environment.

Job responsibilities

·        Understand the current technical architecture including constraints related to platforms, standards and skillsets.
·        Review and integrate all application requirements, including functional, integration, security, performance, quality, and operations.
·        Review designs, documents and have hands-on coding exp.
·        Follow up the activities and team commitments to deliver the right solution at the right time.
·        Review and integrate the technical architecture requirements for the development and make all final decisions regarding system software.
·        Follow and adopt approaches, methodologies, and SDLC standards.
·        Apply techniques and skills required to identify a root cause of a given software integration issue.
·        Escalate encountered technical software issues to project leadership in a timely fashion and respond back consistently on time.
·        Acts as the technical subject matter expert for a product domain and the technical leader within a team
·        Leads and sets the direction for design and implementation of software features/functionality, correction of defects and/or creation of new products
·        Applies advanced systems analysis techniques to evaluate newly created code
·        Provides thought leadership and innovation within a technical domain

.       documents and communicates on complex technical topics outside the immediate development team

Qualifications:

·        Bachelor/Master’s degree in CS or Computer Engineering required
·        5+ years of programming experience in web applications development
·        Hands on Angular development experience 
·        Working knowledge of HTML and CSS
·        Working knowledge in Designing, Developing, and Deploying RESTful web services and other Web APIs.
·        Deep knowledge of Web Application Architecture and Object oriented design. Should have practical knowledge of design on more than two web applications.
·        Should be able to technically lead a small group of members

Crownstack is a premium organisation that specializes in providing innovative digital technology solutions to various enterprises including startups, small and medium-sized businesses and Fortune 500 companies across the globe. Our services include, but are not limited to, UI design, mobile app and web development, Cloud computing, data analytics, and Dev Ops. We take pride in our ingenious, meticulous, and skilled workforce who aim to deliver sustainable and cutting-edge business and technology solutions to all our clients. ★ 100+ Successful Apps Delivered | ★ Enterprise and Startup Clients | ★ Scalable Products | ★ MEAN Stack | ★ Python, pHp, NodeJs | ★ Agile Development | ★ Best UI/UX Award

Crownstack is looking for ReactJs Developers to join our team and deliver a streamlined user experience. We want a team member who strives to develop a first-class codebase using ReactJs best practices. As a React Developer, you will implement a complete user interface across our mobile and desktop web interfaces.

Job Location: Gurgaon/Noida

Experience: 2+ years  

Roles and Responsibilities

• Develop user interfaces with the latest frontend technologies
• Research, analyze, and develop product features of increasingly complex nature
• Code tested and documented JavaScript, HTML, PUG and CSS
• Make design and technical decisions for ReactJs projects.
• Develop application code and unit testing in the ReactJs with REST APIs
• Ensure high performance of all systems developed

Skills and Qualifications

• 2+ years experience with ReactJs
• Strong expertise with HTML, CSS, and writing cross-browser compatible code.
• Experienced in Typescript is a plus
• Familiarity with testing frameworks (Ex. Enzyme)
• Experience in building highly reusable and decoupled components
• Experience in State management Libraries like Redux, mobx
• Critical thinking and problem-solving skills
• Good time-management skills
• Great interpersonal and communication skills

React Native Developer with iOS  experience - 6 months contract.

Required Experience : 2+ Years

Job Requirements :

- A solid knowledge of JavaScript,HTML&CSS & React Native

- Experience in native iOS and Android development

- Knowledge of functional or object-oriented programming

- Familiarity with native build tools, like XCode, Gradle Android Studio, IntelliJ

- Understanding of REST APIs

Note : This is a 6 months contract position directly under the client payroll.