React.js Developer

What you’ll do: 

● Own and build next-generation web applications which are efficient, reusable front-end abstractions 

and systems. 

● Explore and design lively and compelling consumer experiences. 

● Ensure that all the assigned systems are performing to scale. 

● Actively participate in design and code reviews to build robust applications and prototypes 

● You will mentor junior engineers on design and proper coding practices 

What you will need: 

● A deep expertise in Angular / React, Javascript, HTML5 and CSS3. 

● Understanding of browser internals and a basic understanding of the network stack. 

● Understanding of common design patterns followed in front-end projects. 

● Basic awareness of application security practices and deployment techniques for front-end projects. 

● Should have sound knowledge in computer science fundamentals like data structure, object-oriented 

programming and possess excellent communication skills. 

Job Title: React Lead Developer

Location: Airoli, Mumbai

Work Mode: Work from Office (WFO) – Full-time

About the Role:

We are seeking a highly skilled and experienced React Lead Developer to join our growing team in Airoli, Mumbai. The ideal candidate will lead front-end development efforts, mentor developers, collaborate closely with cross-functional teams, and play a key role in delivering scalable, high-performance web applications.

Key Responsibilities:

• Lead the design and development of responsive web applications using React.js
• Collaborate with UX/UI designers, product managers, and backend teams to deliver high-quality products
• Write clean, maintainable, and well-documented code
• Optimize applications for performance and scalability
• Conduct code reviews and ensure coding best practices are followed
• Mentor and guide junior developers in the team
• Participate in architectural discussions and contribute to tech strategy
• Keep up with emerging trends and technologies in frontend development

Required Skills & Experience:

• 6+ years of experience in frontend development, with at least 3 years in React.js
• Strong proficiency in JavaScript (ES6+), HTML5, CSS3, Redux, and REST APIs
• Experience with React Hooks, Context API, and component-based architecture
• Familiarity with Webpack, Babel, and modern build tools
• Experience with version control tools like Git
• Exposure to Agile methodologies and CI/CD pipelines
• Strong problem-solving and debugging skills
• Excellent communication and leadership qualities

Nice to Have:

• Experience with TypeScript, Next.js, or React Native
• Exposure to cloud platforms (AWS/Azure)
• Familiarity with testing frameworks (Jest, Cypress, etc.)

Education:

Bachelor’s or Master’s degree in Computer Science, Engineering, or a related field

Job Responsibilities

• Develop and maintain reusable components and front-end libraries for future use.
• Translate designs and wireframes into high-quality, responsive UI components.
• Optimize components for maximum performance across different browsers and devices.
• Implement ReactJS best practices using Hooks, HOCs, and Functional Components.
• Manage state efficiently using Redux/Flux.
• Collaborate with backend developers to integrate REST APIs.
• Debug and test applications using Mocha & Jest.
• Ensure code quality, maintainability, and scalability using modern front-end tools.

Required Skills & Qualifications

✔ 3+ years of experience in ReactJS development.

✔ Strong knowledge of JavaScript, DOM, JSX.

✔ Hands-on experience with React Hooks, HOCs, and Functional Components.

✔ Expertise in ES6+ concepts (Arrow functions, Destructuring, Spread/Rest operators, Classes, Import/Export).

✔ Experience in HTML, CSS, and responsive design.

✔ Familiarity with REST APIs and integrating backend services.

✔ Experience with state management (Redux/Flux).

✔ Strong debugging skills using Mocha & Jest for performance testing.

✔ Hands-on experience with Git, Webpack, Babel, NPM.

Good to Have:

➕ Experience with backend development (Java, Microservices).

➕ Knowledge of modern authentication mechanisms (JWT, OAuth).

• Relevant experience in React JS  5+ Year

• Experience in Hooks, Typescript

• Experience in GraphQL (Query & Mutations)
• Strong experience in Jest for Unit Testing
• Knowledge on docker, K8 and Kafka

• Proven at least 2 to 3 years of work experience as a Front-end developer
• Hands-on experience with markup languages
• Experience with JavaScript,Next.Js and Tailwind is a must
• Familiarity with browser testing and debugging
• In-depth understanding of the entire web development process (design, development and deployment)
• Understanding of layout aesthetics
• Excellent analytical and multitasking skills
• Engineering Graduates preferred

• Experience building ReactNative apps
• Prior experience building scalable web and mobile web apps
• working in a super fast moving product startup
• Experience working with server side rendering, websockets etc

• Work on the most modern tech stack at the frontier of two of the hottest technology trends: Video and Mar-tech.
• Market leading compensation: salary plus equity
• Opportunity to work with tech's best talent spread across 5 continents: team mates come from the likes of InMobi, Walmart, Goldman Sachs, BCG.
• An incredible culture with a great blend of hustle, productivity and a ton of fun.
• Fully remote! Work from home, Goa, Europe- wherever you want to be.
• Potential opportunities to travel to the US

• Skills : React JS, React router, redux, HTML, javascript, css

   

  BriefJobDescription:

  • FrontEnd Developer
    Passionate and Energtic to take responsibility of developing from scratch in frontend.
    Strong proficiency with React
    Understanding the nature of asynchronous programming and its quirks and workarounds
    Good understanding of server-side CSS preprocessors
    Basic understanding of front-end technologies, such as HTML5, and CSS3
    Understanding accessibility and security compliance
    User authentication and authorization between multiple systems, servers, and environments
    Understanding fundamental design principles behind a scalable application

Front-end Developer

*H1 is a Spanish fin/proptech that revolutionizes the mortgage market by offering bank-risk approved loans before knowing the house an individual wants to purchase. It also offers a powerful selling tool for real estate agents and developers that helps manage their businesses. From there, H1 is building a community of millions of high credit profile users (individuals + companies) that use the credit marketplace technology to access a multiproduct platform (including banking and non-banking capital and multiple financial and credit scoring products) that becomes a financial partner for individuals and companies as well as a personal documentation encrypted storage for all family or group members (SAAS model).

*H1 is the future of digital banking. 

*Recently capitalized, and in a strong growth phase to expand nationally and into 5 additional countries.

About the Job:

H1 seeks front-end developers with experience on React, UX and responsive layout for our development team

In this role, you will report directly to the CTO

Agile based organization, with bi-weekly sprints on long-term project

Responsibilities:

• Build an extraordinary tech product (software) from an user centric perspective, for all the different actors involved with the organization and in direct contact with the technology (clients, management, finance, risk/operations team, commercial team, marketing, etc.) 
• Working with the CTO to build the roadmap and agile based organization required.
• Receive and react to product feedback from all internal and external stakeholders
• Create and optimize company web applications
• Product KPIs, and product releases on a recurring basis
• Producing reports to monitor level of usability, engagement, etc. (product metrics and analytics)
• Contributing to deliver the expected results from a usability and engagement perspective

About You:

• With strong software product background, and extraordinary capabilities in terms of product strategy development and usability 
• 3-6+ years robust experience on developing software products in an agile based organization
• Demonstrated success in bringing new products to market, capturing market share and delivering market leading products and services.
• Clear examples of products managed or developed during his/her career 
• Strategic thinking: you are able to think at the strategic level and make the link with the pixel level 
• Able to work in a flat and transparent manner within a fast paced environment
• Results oriented
• Academic education in tech/product/digital related careers
• High level english (spoken and written). Spanish at any level would be a great plus.
• Entrepreneurial mindset: Is looking for a very ambitious project. Due to the stage of growth kick-off the upside could be extraordinary (a life-time opportunity)

Skills:

• Great flavour towards software products
• High expertise and excellence on software usability and user experience optimization. Expertise in software design
• Sensitivity towards customers and users
• Data driven decision making
• Deep knowledge of the digital world
• Fintech / Proptech / Digital banking background experience will be very positively considered, but not necessarily needed
• ReactJS on typescript with class and hooks
• Experience with responsive design
• Css with less compiler experience
• Long SPA development using json web tokens security
• AntD library would be a plus
• Experience in working with tech teams, on an agile based style
• Proactive and able to take initiative. Decisive and resolute
• “Out of the box” thinker
• Creative thinker
• Works well in a team and with a wide range of people from different backgrounds and ages
• Organised and methodical
• Succeeds under pressure
• Is able to have fun and keep a positive atmosphere in the team

Location of Headquarters: Madrid, Spain

Tech Hub in India: Office in Bangalore, Karnataka (India). Full tech team between Madrid, Spain + Bangalore, India

This is a unique opportunity to contribute heavily to the growth of an innovative, market-leading Fintech & Proptech company.

Salary Range: 40k-90k Rupees monthly (5 Lakhs - 11 Lakhs per annum)

We're looking for developers who are interested in solving problems. We like people who are willing to work across the technology spectrum. 

An example of a typical problem would be a product feature that requires UI/UX (Typescript/React/HTML/SCSS), server changes (Java/Scala/R), and database changes (MySQL).

You will own some or all of a product/feature. You will also mentor others, read and review code, maintain code, deploy code, tune the performance of systems, as required.

Requirements :

- We're looking for 4 years or more of relevant work experience. That being said, if you think you have the necessary skills to make the number irrelevant then do talk to us

- Proficiency in Java, JavaScript, and sufficient knowledge of database concepts to write efficient queries

- Working experience in one or more of React, Redux, Typescript, and associated tools such as Webpack, Grunt, Gulp etc.

- Working experience in HTML, (S)CSS

- Working experience writing unit/functional/integration tests

- Knowledge of Java 8 features such as streams and lambdas is a plus

- Knowledge of REST concepts and design is a plus

- Knowledge of ES6 features/syntax is a plus

- Knowledge of functional programming concepts is a plus

- Knowledge of build/deploy tools such as Ant, Maven, Gradle, Ansible, Chef, Puppet etc. is a plus

- Knowledge of one or more scripting languages such as Awk, Bash, Perl, Python, Rubyetc. is a plus

- Ability to use modern IDEs such as VSCode, IntelliJ IDEA, Eclipse etc. is a plus

- Knowledge of container technologies such as Docker, Kubernetes, etc. is a plus

Bonus Points :

- For product experience. We're a product company. Talk to us if you have worked on software products

- For startup experience. Have you worked in a any startups? We're always looking for people who have startup experience

- If you've developed and deployed any software for your own, or others- use

- If you've contributed to open source projects

- If you've spoken at developer conferences, published articles in tech websites, published podcasts

- If you communicate well. Do you blog? Can you explain ideas clearly and succinctly? Can you answer questions in short, clear sentences?

- If you have technical certifications such as AWS, Docker, Redhat etc.

- If you're self taught. Have you learned other programming languages, technologies etc. on your own? Share the details of the courses you took online, for instance.

- For deep knowledge in one or more areas. We like people who dig down, understand concepts in detail

- If your code/work is out there in public. We'd love to see what you've developed and deployed to the external world