Senior React & Java / TypeScript Developer (m/f/d)

Sally; Mannheim; On-site; EUR 65,000 - 95,000; Full time

Benefits offered by this job

Company-funded training and developmen

Attractive bonus system

Public transport ticket (Jobticket)

Employee referral program

Subsidized lunches

Free drinks and snacks

Free parking

Job summary

Sally AI in Mannheim seeks a React & Java/TypeScript Developer to build high-performance web applications and maintain scalable frontend architectures.

You will collaborate with backend, design, and product teams, implement modern UI/UX, review code, and optionally extend backend with C# / .NET when needed. The role emphasizes quality, growth, and teamwork.

Qualifications

• Several years of professional experience with React and fluency in Java/TypeScript.
• Experience with modern frontend technologies and frameworks.
• Experience with build tools such as Webpack or Vite and version control (Git).
• Bonus points for basic knowledge of C# and .NET.

Responsibilities

• Develop and maintain high-performance web applications using React, Java and TypeScript.
• Implement modern UI/UX designs into scalable frontend architectures.
• Collaborate closely with backend developers, designers, and other stakeholders.
• Write clean, testable, and maintainable code; participate in code reviews to improve quality.
• (Optional) Integrate and develop backend components using C# and .NET.

Skills

React

Java

TypeScript

Frontend frameworks

Webpack

Vite

Git

C# / .NET

Tools

Webpack

Vite

Git

Job description

As a React & Java / TypeScript Developer, your main responsibilities will be developing high-performance web applications.

Your Responsibilities

• React & Java / TypeScript: Develop and maintain high-performance web applications.
• Frontend Solutions: Implement modern UI/UX designs into scalable and maintainable frontend architectures.
• Collaboration: Work closely with backend developers, designers, and other stakeholders.
• Programming: Write clean, testable, and maintainable code. Participate in code reviews to continuously improve code quality.
• (Optional) C# / .NET: Integrate and develop backend components using C# and .NET.

Your Profile

• Experience: You have several years of professional experience (preferred) in developing with React and are fluent in Java / TypeScript. You feel at home working with modern frontend technologies and frameworks. You’ve worked with build tools like Webpack, Vite, or similar, and are familiar with version control systems like Git. Bonus points if you have basic knowledge of C# and .NET application development.
• Personality: You love structure and code even in your free time? You enjoy the creative process and take pride in what you build? Then this job is perfect for you.
• Enthusiasm: You’re ready to take responsibility in a strong, supportive team full of experts you can rely on.
• Communication: Excellent written and spoken German and English skills complete your profile.

Why Us?

• Exciting Growth: Aliru focuses on continuous development. With our innovative solutions, we aim to drive the digital transformation of global enterprises. Want to be part of this success story?
• Real Appreciation: If you join our team, it’s because we chose you. Your performance, well-being, and opinions truly matter—and we show it.
• Open Culture: Everyone at Sally AI has your back—including our CEO and the rest of the C-level, who are happy to make time for you personally.
• Your Growth = Our Success: Regular feedback conversations highlight your potential. Interested in further training or a course that excites you and strengthens your skills? Talk to us—we’re always open to your ideas.
• The Best Team: Our highly motivated, professional team is defined by strong cohesion. We tackle challenges together and celebrate every success—as one unit that supports each other.
• Motivating Work Environment: People spend about a third of their lives at work. We place great importance on creating an environment where you can thrive. Our transparent career path shows you exactly which steps to take to reach the next milestone in your journey.

General conditions

• Type of position: Full-time
• Work location: On-site
• Working hours:
  • Flextime (core hours 10:00–16:00)
  • Monday to Friday
• Benefits:
  • Company-funded training and development
  • Attractive bonus system
  • Public transport ticket (Jobticket)
  • Employee referral program
  • Subsidized lunches
  • Free drinks and snacks
  • Free parking

About Us

We support companies with CRM and Dynamics projects and, at the same time, have successfully established our own SaaS product, Sally, in the market, which we keep developing further. For us, it matters not only what we do, but also how we do it: with a lot of ambition, the right mindset and a clear commitment to building something big. Not everything always has to run perfectly here. What matters is that you take responsibility, learn from your mistakes and grow from them. That is exactly where real growth lies for us. At Aliru you do not simply work alongside others, you develop yourself professionally and personally, with experiences that benefit you not only in your job but also in life.

Experience: You have several years of professional experience (preferred) in developing with React and are fluent in Java / TypeScript. You feel at home working with modern frontend technologies and frameworks. You’ve worked with build tools like Webpack, Vite, or similar, and are familiar with version control systems like Git. Bonus points if you have basic knowledge of C# and .NET application development.Personality: You love structure and code even in your free time? You enjoy the creative process and take pride in what you build? Then this job is perfect for you.Enthusiasm: You’re ready to take responsibility in a strong, supportive team full of experts you can rely on.Communication: Excellent written and spoken German and English skills complete your profile.