Hai Tech SolutionsHAI TECH SOLUTIONS

Hai Tech Solutions

Careers

Build our own apps with us, shape their user experiences or bring your knowledge of Japanese to our learning products. At Hai Tech Solutions, you work directly with the founders on products we genuinely care about.

Open positions
Yomi LensManabu

What you can expect

  • A close-knit atmosphere

    Personal connections, open communication and a team that supports each other.

  • Work directly with the founders

    Short lines of communication, direct feedback and insight into the decisions behind our products.

  • Profit sharing

    Share in our collective success. We will discuss the specific arrangements with you personally.

  • 100% remote

    Work fully remotely, without regular office attendance requirements.

  • Workations within the EU

    Combine work with a change of scenery on a workation in another EU country.

  • An annual get-together in Stuttgart

    Our company event in Stuttgart brings the team together in person once a year.

  • Flexible working hours

    Organise your working hours flexibly around work, studies and everyday life.

  • Room for your own ideas

    Share your suggestions, contribute your perspective and actively shape our products.

Open positions 04

01 / Software development

(Junior) Mobile App Developer (all genders)

Help develop our mobile apps Yomi Lens, Neo Seichi and Omakase GO. Your focus is on cross-platform apps built with React Native, Expo and TypeScript.

  • React Native
  • Expo
  • TypeScript
  • iOS & Android
Apply now

What you will do

  • Build new features and intuitive interfaces for our mobile apps.
  • Connect APIs and integrate features such as text scanning, location search and interactive learning workflows.
  • Improve stability, performance and code quality through testing and thoughtful development.
  • Take features from the initial idea through to release on iOS and Android.

What you bring

  • Ideally, a completed degree in Computer Science, Media Informatics, Business Informatics, Software Engineering or a comparable field.
  • Some initial hands-on experience with React Native, Expo and TypeScript, and a solid understanding of React.
  • Experience with API integration, Git and structured, maintainable code.
  • An eye for mobile user experiences and the ability to develop solutions independently.
  • Nice to have: knowledge of Node.js, Python/FastAPI, Spring Boot or PostgreSQL/PostGIS, matching our backends.

02 / Working student · Language & content

Working Student in Japanese Studies (all genders)

Help make Japanese content for Yomi Lens and Manabu clear, accurate and engaging. Connect your Japanese Studies degree with hands-on work on digital learning products.

  • Japanese Studies
  • Japanese
  • Yomi Lens
  • Manabu
Apply now

What you will do

  • Research, prepare and maintain Japanese texts and learning content for Yomi Lens and Manabu.
  • Check vocabulary, readings, translations and grammar explanations for linguistic accuracy.
  • Select suitable videos and texts, and organise content by learning level and topic.
  • Review AI-generated explanations and add linguistic and cultural context.

What you bring

  • You are enrolled in Japanese Studies or a comparable Japan-related degree programme.
  • You have good Japanese language skills and can read and understand Japanese texts independently.
  • You can explain language concepts clearly in German or English.
  • You enjoy careful research and are interested in digital language learning. Programming skills are not required.

03 / Working student · Software development

Working Student in Software Development (all genders)

Support one of our software projects and gain practical development experience. Whether it is a web application, mobile app or backend, we will find tasks that match your skills and interests together.

  • Working student
  • Web
  • Mobile apps
  • Backend
Apply now

What you will do

  • Contribute to one of our projects and gradually take on your own development tasks.
  • Build smaller features, improve existing functionality and fix bugs.
  • Help with testing and documentation, and contribute to software quality.
  • Discuss solutions directly with the founders and get to know new technologies through project work.

What you bring

  • You are enrolled at university, ideally in Computer Science, Media Informatics, Business Informatics, Software Engineering or a comparable degree programme.
  • You have basic programming skills, for example from university, personal projects or an internship.
  • You are interested in web, mobile app or backend development. Prior knowledge of our full tech stack is not required.
  • You enjoy learning, work carefully and ask for support when you need it.

04 / Design · User experience

(Junior) UX/UI Designer (all genders)

Create intuitive user experiences and thoughtful interfaces for our mobile apps and web applications. Turn early ideas into tangible designs in Figma and work with development to bring them to life.

  • Figma
  • UX/UI design
  • Prototyping
  • Web & Mobile
Apply now

What you will do

  • Create user flows, wireframes and interactive prototypes for our products in Figma.
  • Design responsive interfaces and reusable UI components for web and mobile.
  • Use feedback and simple usability tests to improve usability and accessibility.
  • Collaborate with the founders and developers on designs and support their implementation.

What you bring

  • Some initial practical experience in UX/UI design, for example through university, an internship or personal projects.
  • Experience with Figma, particularly Auto Layout, components and interactive prototypes.
  • An eye for typography, colour, layout and intuitive web and mobile interactions.
  • You can explain your design decisions, welcome feedback and share initial work samples. University and personal projects are welcome.

Let's get to know each other.

Email us your CV and a few lines about yourself. For development, we would also love to see your projects or GitHub profile; for UX/UI design, your portfolio or a Figma link; for Japanese Studies, tell us about your relevant studies and language skills. We will discuss your start date, hours and working arrangements together.

info@haitechsolutions.com