Senior TypeScript Full Stack Developer (all)

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.

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.

Tasks

• 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

Requirements

Required Qualifications (Must-Have):

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

Benefits

• 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, full remote within Germany or Luxembourg possible
• 30 days of vacation per year

If you're passionate about web development and want to work with cutting-edge technologies, we'd love to hear from you!

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