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Senior TypeScript Full Stack Developer (all) Job Opening In Berlin – Now Hiring Sonia


Job description

Let me introduce...

With Sonia, doctors are successful doctors.

We create and deploy AI enhanced solutions that make doctors’ lives easier, patients’ care better, and healthcare systems more efficient.

If you’re proactive, impact-driven, and ready to shape the future of healthcare, join us.

This is what you’ll own

We’re looking for a Senior Full-Stack Engineer (all) to help us build modern, high-performing web applications.

You’ll play a key role in shaping our architecture, mentoring team members, and contributing to the scalability of our product.

  • Design and implement robust, scalable full-stack web applications
  • Write clean, maintainable, and testable code following best practices
  • Collaborate on architecture decisions and long-term technical planning
  • Optimize application performance and improve system reliability
  • Mentor junior developers and support their growth
  • Conduct code reviews and share constructive feedback
  • Contribute to technical documentation and knowledge sharing

You’ll thrive in this role if you bring

  • 8+ years of professional software development experience
  • Strong expertise in TypeScript / JavaScript and Node.js
  • Proven experience with React and modern front-end development
  • Solid understanding of full-stack development principles
  • Hands-on experience with ORM tools, especially Prisma
  • Experience in backend development with Node.js
  • Familiarity with RESTful API design and implementation
  • Understanding of CI/CD pipelines
  • Proficiency with Git version control
  • Experience with database design and data modeling

Nice to Have
  • Experience with Remix.run or other server-side rendering (SSR) frameworks
  • Familiarity with Chakra UI
  • Experience with testing frameworks (e.g., Playwright, Vitest)

Why you’ll love working with us

  • An engineering-driven culture with modern tools and clean code practices
  • A product-focused environment where quality and performance matter
  • A collaborative team that values learning, pragmatism, and ownership
  • Attractive compensation aligned with your skills
  • Flexible work arrangements
  • 30 days of vacation per year

Ready to apply?

If you enjoy building meaningful relationships, driving customer satisfaction, and contributing to the transformation of healthcare, we’d love to hear from you!

I'm Margarita and will be guiding you through the application process.

About us

At Sonia, we’re building more than just a product — we’re building a team that helps doctors succeed with the power of AI.

To grow and shape the future of healthcare, we’re looking for people who want to create, challenge, and collaborate — and have fun while doing it.

We believe teams thrive when different perspectives come together and work toward a shared goal. We welcome and respect everyone for who they are, regardless of origin, gender, age, religion, disability, or sexual identity.

We’re excited to meet people from all backgrounds who want to bring their unique perspective to our mission.

Are you in?

Required Skill Profession

Computer Occupations


  • Job Details

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Unlock Your Senior TypeScript Potential: Insight & Career Growth Guide


Real-time Senior TypeScript Jobs Trends (Graphical Representation)

Explore profound insights with Expertini's real-time, in-depth analysis, showcased through the graph here. Uncover the dynamic job market trends for Senior TypeScript in Berlin, Germany, highlighting market share and opportunities for professionals in Senior TypeScript roles.

32751 Jobs in Germany
32751
3830 Jobs in Berlin
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Download Senior Typescript Jobs Trends in Berlin and Germany

Are You Looking for Senior TypeScript Full Stack Developer (all) Job?

Great news! is currently hiring and seeking a Senior TypeScript Full Stack Developer (all) to join their team. Feel free to download the job details.

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The Work Culture

An organization's rules and standards set how people should be treated in the office and how different situations should be handled. The work culture at Sonia adheres to the cultural norms as outlined by Expertini.

The fundamental ethical values are:

1. Independence

2. Loyalty

3. Impartiapty

4. Integrity

5. Accountabipty

6. Respect for human rights

7. Obeying Germany laws and regulations

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The average salary range for a varies, but the pay scale is rated "Standard" in Berlin. Salary levels may vary depending on your industry, experience, and skills. It's essential to research and negotiate effectively. We advise reading the full job specification before proceeding with the application to understand the salary package.

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Interview Tips for Senior TypeScript Full Stack Developer (all) Job Success

Sonia interview tips for Senior TypeScript Full Stack Developer (all)

Here are some tips to help you prepare for and ace your Senior TypeScript Full Stack Developer (all) job interview:

Before the Interview:

Research: Learn about the Sonia's mission, values, products, and the specific job requirements and get further information about

Other Openings

Practice: Prepare answers to common interview questions and rehearse using the STAR method (Situation, Task, Action, Result) to showcase your skills and experiences.

Dress Professionally: Choose attire appropriate for the company culture.

Prepare Questions: Show your interest by having thoughtful questions for the interviewer.

Plan Your Commute: Allow ample time to arrive on time and avoid feeling rushed.

During the Interview:

Be Punctual: Arrive on time to demonstrate professionalism and respect.

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Final Thought:

To prepare for your Senior TypeScript Full Stack Developer (all) interview at Sonia, research the company, understand the job requirements, and practice common interview questions.

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By following these tips, you can increase your chances of making a positive impression and landing the job!

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