Senior Software Engineer Node.js​/TypeScript; x​/f​/m

Overview

Your Impact

We are looking for a Senior Software Engineer to join the DIAL team in the Phone Assistant domain. Your mission will be to revolutionize access to care for patients and day‑to‑day practice management for practitioners through our Phone Assistant solution. You will work in a feature team developing innovative AI‑powered voice services, contributing directly to millions of users across Germany, France, and Italy who rely on seamless phone interactions with their healthcare providers.

• Build and operate scalable backend services in Node.js/Type Script with additional exposure to Python.
• Ship cloud‑native systems on Kubernetes and major Cloud Services (AWS, Azure, GCP).
• Set up and evolve CI/CD pipelines with Git Hub Actions while maintaining a high testing standard (unit, integration, e2e).
• Debug and improve distributed systems in production with strong observability practices.
• Learn and apply VoIP telephony fundamentals (SIP, RTP, etc.) to power real‑time communication features.
• Own roadmap items end‑to‑end and contribute to pragmatic, secure architecture decisions.
• Design data models and drive database migrations and performance tuning for real‑time workloads using PostgreSQL.

Required:

• At least 5+ years of backend engineering experience.
• Ability to design, build, and maintain scalable, resilient backend systems using Node.js/Type Script with some Python.
• Proven experience deploying and operating services on Kubernetes within at least one major Cloud Service (AWS, Azure, or GCP).
• Experience with CI/CD (e.g., Git Hub Actions) and maintaining a strong testing culture (unit, integration, e2e).
• Solid debugging skills for microservices and distributed systems.
• Working knowledge of relational databases (PostgreSQL/MySQL) and schema design.
• Interest in or exposure to VoIP telephony basics (SIP, RTP/SRTP, SBCs, SIP trunks).

Nice‑to‑have:

• Experience with real‑time communication systems (WebRTC, streaming, etc.).
• Experience with event‑driven architectures and message brokers (Kafka, RabbitMQ, NATS, Redis Streams).
• Familiarity with software design patterns;
  Domain‑Driven Design is a plus.
• Experience with PostgreSQL (migrations, EXPLAIN/ANALYZE, indexing strategies, connection pooling) and Redis (caching, short‑lived state, queues).

• Deutschlandticket (Germany‑wide public transport pass) fully paid for by Doctolib.
• 28 vacation days + 1 additional day for each full calendar year of employment (up to a maximum of 30 days).
• Work from abroad for up to 10 days per year thanks to our flexibility days policy.
• Company health insurance with great supplementary benefits through our partner Allianz.
• Company pension scheme (bAV) through Allianz with an employer subsidy of 40% (15% within the probationary period).
• The Doctolib Parent Care program, which includes one month additional parental leave and much more.
• Free mental health and coaching services through our partner Moka.care.
• Subsidized sports membership through our partner Urban Sports Club.
• A flexible workplace policy offering both hybrid and office‑based mode.
• Subsidized meal benefit and healthy snacks.
• Support for caregivers and workers with disabilities, including adaptations of the remote policy, extra days off for medical reasons, and psychological support.
• Relocation support in case of international mobility.
• Access to the best AI tools for coding, development, and dedicated training.

• Permanent position.
• Tech stack:
  Node.js, Type Script, Python, Kubernetes, PostgreSQL.
• Full‑time.
• Hybrid work mode: 3 days/week in the office.
• Location:
  
  Berlin, Germany.
• Start date:
  
  as soon as possible.

We welcome everyone. At Doctolib, we are committed to improving access to healthcare for everyone. Our recruitment process is based solely on qualifications and motivation, without discrimination.

The more diverse ideas are heard, the more our product will truly improve healthcare for all. You are welcome to apply, regardless of gender, religion, age, sexual orientation, ethnicity, or disability.

To ensure equal opportunities, we invite you to exclude personal information (e.g., pictures, age) from your applications. If you require accommodations, please let us know for support during the hiring process.

All information provided is processed by Doctolib for application management. For data processing details, please contact (Sie können sich bewerben oder uns per E-Mail kontaktieren in dem Sie die untenstehende Online-Bewerbungsbox verwenden) inquiries or to exercise your rights.