UI Developer

About the Role

We are seeking a creative and technically strong Frontend Developer with expertise in 3D animations to join our team. You will play a key role in building interactive, visually engaging, and high-performance web applications using modern frameworks and 3D libraries. This role involves close collaboration with designers, product managers, and backend engineers to deliver immersive digital experiences.

Key Responsibilities

• Develop and maintain responsive, user-friendly web applications.
• Implement 3D models, animations, and interactions using Three.js, WebGL, or Babylon.js.
• Collaborate with UI/UX designers to transform creative concepts into smooth, interactive experiences.
• Optimize performance for real-time rendering and animations across devices and browsers.
• Integrate backend APIs for data-driven 3D visualizations and dynamic content.
• Stay updated with the latest trends in frontend development, 3D frameworks, and animation tools.
• Ensure cross-browser compatibility, scalability, and maintainability of code.

Required Skills & Qualifications

• 3+ years of professional experience as a Frontend Developer.
• Strong proficiency in HTML5, CSS3, JavaScript (ES6+).
• Experience with React.js / Next.js (or other modern frontend frameworks).
• Hands-on expertise in 3D libraries: Three.js, WebGL, Babylon.js (or similar).
• Knowledge of animation frameworks: GSAP, Framer Motion, Anime.js.
• Strong understanding of rendering performance optimization (shaders, textures, lighting).
• Familiarity with design tools: Figma, Adobe XD, Blender, or similar.
• Excellent problem-solving, debugging, and communication skills.

What you need to have:

• Meeting with the development team to discuss user interface ideas and applications.
• Reviewing application requirements and interface designs.
• Identifying web-based user interactions.
• Developing and implementing highly responsive user interface components using react concepts.
• Writing application interface codes using JavaScript following react.js workflows.
• Troubleshooting interface software and debugging application codes.
• Developing and implementing front-end architecture to support user interface concepts.
• Monitoring and improving front-end performance.
• Documenting application changes and developing updates

Long Term Contract Job

Senior Frontend Developer 

About us

We are founded in 2007. Our mission is to develop a diverse portfolio of technologies, products, and services,that gives all people equal access to unbiased data and information. We believe that through this access people can empower and protect themselves in today’s
ever-changing world, filled with fake news, deception, and a lack of transparency.

About the Job

We are looking for a Sr. Front End Developer to join our growing team. Your
experience here will give you the opportunity to improve the fundamentals and learn about the
top notch technologies in front end development. If you are someone who is passionate about
building stellar user experiences and great products through elegant code this would be the job for you. You will play a key role in translating our customers and company needs into appealing and functional web pages while proving your ideas with testing.

What You Will Get to Do

1. Work with your team to improve our conversion rates by coding out variations for A/B testing
2. Build better user experiences
3. Rigorously educate yourself with the latest development techniques and best practices
4. Proactively anticipate issues and develop solutions
5. Clearly communicate solutions to team members both verbally and in written documentation
6. Implement new digital technologies or development techniques that help to meetbusiness objectives
7. Look at existing practices and use your experience to help build better practices when necessary
8. Work with our tech leads to decide what long term initiatives we should take on and then motivate others to embrace these initiative

1. 4+ years of front-end development experience
2. Experience with responsive web design and the ability to deliver outstanding functionality to the range of client devices from desktops and laptops to mobile platforms
3.  Familiarity with at least one JavaScript framework (MVW) and know when to do without one when necessary
4. Understanding of HTTP and how clients interact with a web server
5. Solid understanding of best practices. You read the YDKJS books.
6. Capable of coding in ES5 and ES6 and understand the difference between them
7. Up-to-date on HTML5 and CSS3 features
8. Passionate about supporting all browsers, including IE11+
9. Practical experience in design techniques for web UI applications
10. Demonstrated ability to roll up sleeves to develop and implement new features and functionality
11.  Possess an excellent understanding of creative tools in order to develop leading-edge web pages with interesting and innovative client-side capabilities
12.  Be independently driven and resourceful to deliver results with minimal direction
13. Have an entrepreneurial spirit with a drive to contribute new ideas for future development
14. Have the ability to deliver what is required but at the same time, look at code objectively to see areas of improvement
15. Have the ability to work with UX and technical teams to get things done
16. Have the ability to handle multiple, competing priorities in a fast-paced environment
17. Have excellent verbal and written communication skills

1. Experience working in an agile development environment
2. Experience with running experiments
3. Experience in trying out modern frameworks and executing on migration plan

1. You know how to polyfill features that aren't cross browser friendly.
2. You understand same-origin policy and cross-origin resource sharing.
3. You understand prototypal inheritance vs classical inheritance.

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)

• software engineering experience focused on web development.
• Hands on experience in architecting large scale frontend applications.
• Have detailed hands-on experience of cutting edge web technologies (HTML5, CSS, Javascript, TypeScript), Application Servers, Web Applications 
• Experience developing UI with JavaScript development frameworks (e.g. React, Angular, Vue, Bootstrap, etc)