Senior TypeScript Full Stack Developer (all)

Sonia; Berlin; Vor Ort; EUR 70.000 - 90.000; Vollzeit

Zusammenfassung

A healthcare technology company based in Berlin is seeking a Senior Full-Stack Engineer who will be responsible for designing and implementing scalable web applications. The ideal candidate will have over 8 years of development experience, with strong skills in TypeScript, Node.js, and React. This role emphasizes collaboration, mentorship, and the creation of high-quality products. Flexible work arrangements and a supportive team culture are offered.

Leistungen

Attractive compensation

Flexible work arrangements

30 days of vacation per year

Qualifikationen

• 8+ years of professional software development experience.
• Strong expertise in TypeScript / JavaScript and Node.js.
• Proven experience with React and modern front-end development.

Aufgaben

• 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.

Kenntnisse

TypeScript / JavaScript

Node.js

React

Full-stack development principles

ORM tools (especially Prisma)

RESTful API design

CI / CD pipelines

Git version control

Database design and data modeling

Jobbeschreibung

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?