Frontend Developer (Mobile & Web)

Company Description

Klugsys is a German technology company, founded by visionary technologists and business strategists, is dedicated to empowering enterprises through intelligent automation and immersive digital solutions. Beyond development, we act as partners in transformation, focusing on measurable impact, ethical innovation, and collaboration. Our commitment is to drive meaningful change across technological frontiers by working closely with our clients. Join us to be part of a team that prioritizes innovation and real-world results.

Role Description

mobile apps (Flutter)

This role is ideal for a developer who is highly creative, detail-oriented, and passionate about modern frontend technologies and mobile UI experiences.

Key Responsibilities

• Develop responsive, high-quality UI for the 

  Hayy.AI Agent App

  , 

  User App

  , and the 

  Hayy.AI Web Platform

  .
• Implement mobile features using 

  Flutter

  , including chat UI, property cards, search filters, dashboards, and AI assistant screens.
• Build scalable and clean web components using 

  React.js / Next.js

  .
• Convert UI/UX designs from Figma into pixel-perfect, production-ready interfaces.
• Work closely with the design team to ensure consistency with the Hayy.AI design system, branding, and interaction patterns.
• Integrate frontend features with backend APIs and AI services (chat, insights, add property, buyer demand, etc.).
• Implement robust state management for complex UI flows (Flutter Bloc/Provider, React Zustand/Redux).
• Optimize user experience for speed, responsiveness, and mobile performance.
• Handle real-time interactions like chat, voice-to-text, and LiveKit integrations.
• Ensure cross-browser compatibility and mobile responsiveness on all devices.
• Work within CI/CD workflows, GitHub repositories, and branching guidelines.
• Troubleshoot UI bugs, performance issues, and production defects.
• Collaborate with backend and cloud teams to ensure smooth API communication and deployment pipeline compatibility.

Required Skills & Experience

Core Technical Requirements (Must Have):

• 3–5 years of experience in mobile and/or web frontend development.
• Strong experience with 

  Flutter

   (Dart) for mobile app development.
• Strong experience with 

  React.js or Next.js

   for web application development.
• Proficient in UI frameworks, responsive design, animations, and custom components.
• Experience integrating 

  REST APIs, WebSockets

  , and real-time data.
• Good understanding of state management patterns.
• Strong knowledge of HTML5, CSS3, Tailwind/SCSS, and component-driven development.
• Experience working with Git/GitHub and CI/CD pipelines.

Bonus Skills (Good to Have):

• Experience with 

  Firebase + Flutter

  , LiveKit, or WebRTC features.
• Knowledge of micro-frontend concepts.
• Familiarity with AI/LLM-based workflows (chat UI, streaming responses).
• Experience building dashboards or analytics-heavy UIs.
• Exposure to mobile performance optimization and app store deployment.
• Understanding of backend basics (Node.js/Python).
• Knowledge of SEO best practices for Next.js.

Soft Skills

• Strong design sense and attention to detail.
• Ability to work in a fast-paced startup environment with evolving priorities.
• Excellent communication and collaboration skills.
• Ownership-driven mindset with a passion for delivering high-quality frontend experiences.
• Ability to translate product concepts into smooth, intuitive user flows.

What we Offer

• Opportunity to build 

  next-generation AI-driven interfaces

  .
• Work directly with cross-functional teams (AI, Product, Cloud, Backend).
• Freedom to experiment and bring creative UI ideas to life.
• Flexible work environment and global team collaboration.
• High ownership and fast career growth opportunities.