Booking Health GmbH

We are an international developer of IT products for medicine and related services. Our products are used by more than 5,000 doctors and more than 1,000 clinics in Europe.

The goal is to attract the largest possible audience to the main projects - clinics and doctors up to 3 million. As well as expanding unique traffic to 10 million per day until 2025. We are looking for Senior Back-End Developer with 7+ years of Laravel development experience. Good experience with Node.js (NestJS) will be an advantage.

Must-have skills are:
- Laravel (7+ years).
- Experience of building highload applications.

- Deep expertise in application security, including secure architecture design and protection against common vulnerabilities.

- Experience in SaaS platform design and development:

• multi-tenant architecture (tenant data isolation);
• subscriptions/plans, limits, billing logic (at least at the structure level).

- Integration with external services via OAuth2/OIDC.
- Practical working experience with sensitive personal data and GDPR/DSGVO requirements.
- Understanding of WebRTC (ICE/STUN/TURN), room/session management.
- Experience with Linux (shell/bash).

Will be an advantage if you have (it's just a bonus skills, not mandatory):
- Experience with Microsevices.
- Experience with Node.js (NestJS).
- Experience with service infrastructure.
- Understanding of front-end.
- Understanding of DICOM/DICOMweb (QIDO‑RS/WADO‑RS/STOW‑RS).
- Design of storage/access to results of researches (PACS-like scenarios, object storage).

What we offer:
- Paid holiday for 28 working days.
- Transparent incentive system.

Working with us means:
- Unique technological and innovative projects.
- Gaining experience in modern western world practices in security, scalable architecture, etc.
- In-depth knowledge of telemedicine.
- Working with Big data, high load, distributed computing and data buses.
- Socially important projects.
- Opportunity to influence both technology and product solutions.
- Profitability and stability of a large European company.

We are an international developer of IT products for medicine and related services. Our products are used by more than 5,000 doctors and more than 1,000 clinics in Europe.

The goal is to attract the largest possible audience to the main projects - clinics and doctors up to 3 million. As well as expanding unique traffic to 10 million per day until 2025. We are looking for AI Engineer / AI Architect with deep knowledge of Fundamental Mathematics, Probability Theory and Bayesian Statistics, Graph Algorithms, Mathematics of Transformers, Hybrid AI Approaches, Uncertainty Assessment.

Must-have skills are:
1. ML and Data Science (Core):
- Expert in NLP & LLM: Deep understanding of Transformers architecture (BERT, RoBERTa, GPT, T5, Llama/Mistral). Experience with Large Language Models (LLM) – not prompt engineering, but fine-tuning (PEFT, LoRA) of open-source models on specific datasets.
- RAG (Retrieval-Augmented Generation): Experience building RAG systems is required. The AI ​​must be able to search for information in different data sources.
- Named Entity Recognition (NER) & Information Extraction: Ability to extract specific entities from unstructured text.
- Tabular Data & Classic ML: Confident use of classical algorithms (XGBoost, CatBoost, LightGBM) for analyzing structured data and building probability scoring models.
- Frameworks: PyTorch (preferred) or TensorFlow/Keras. Proficiency in HuggingFace, Scikit-learn, Pandas, and NumPy.

2. MLOps:
- Experience wrapping models in APIs (FastAPI, Flask) with minimal latency. 

- Docker knowledge and experience working with local GPU instances are required.
- Experience working with vector databases (Pinecone, Milvus, Qdrant, ChromaDB) for quickly searching for similar cases or working with knowledge bases.

- ML Pipelines: Experience building model training and retraining pipelines (Airflow, MLflow, DVC).

3. MedTech and Security:
- Practical working experience with sensitive personal data and GDPR/DSGVO requirements.

- It is important to be able to deploy and optimize local models (Llama 3, Mistral, Mixtral) within a closed company environment to ensure data privacy.
- Skills in quantization and distillation of models to speed up work without significant loss of quality.

Nice-to-have skills:
- Experience working specifically with medical data (EHR, EMR; HL7, FHIR, ICD-10/11 standards). 

- Knowledge of Interpretability/Explainable AI (XAI) methods. The end user should understand why the AI ​​suggested a particular option (SHAP, LIME).

- Experience with multimodal models.

What we offer:
- Paid holiday for 28 working days.
- Transparent incentive system.

Working with us means:
- Unique technological and innovative projects.
- Gaining experience in modern western world practices in security, scalable architecture, etc.
- In-depth knowledge of telemedicine.
- Working with Big data, high load, distributed computing and data buses.
- Socially important projects.
- Opportunity to influence both technology and product solutions.
- Profitability and stability of a large European company.

We are looking for a data-driven Middle SEO Manager to join our global SEO team. In this role, you will take ownership of the organic growth for an international platform, focusing on both traditional search excellence and the emerging field of Answer Engine Optimization (AEO).

This is a hands-on position perfect for a specialist who loves deep-diving into technical details, fine-tuning on-page elements, and building a bulletproof SEO foundation.

Must-Have Skills and Expertise

• Proven Track Record: 5+ years of hands-on SEO experience with a measurable history of scaling international, multilingual projects. (Candidates must provide case studies or project examples).
• Strategic Planning: Ability to develop and execute a 6–12 month SEO roadmap rooted in semantic search, topic clusters, and advanced user-intent mapping.
• Technical Mastery & Fluency: Deep understanding of HTML, CSS, and JavaScript fundamentals as they relate to crawlability and rendering. You must be able to optimize indexing, Core Web Vitals, and complex international hreflang configurations.
• AEO & AI Optimization: Expertise in implementing Answer Engine Optimization (AEO) strategies for platforms like ChatGPT, Perplexity, and Bing Copilot, including the management of AI crawlers (e.g., GPTBot).
• Analytical Precision: Expert-level ability to extract actionable insights from GSC and GA4. You should be proficient in using server logs for SEO A/B testing, cohort analysis, and traffic forecasting.
• E-E-A-T & Schema Architecture: Strong command of E-E-A-T principles and the ability to deploy advanced structured data (JSON-LD/Schema.org) to build institutional authority.
• Engineering Collaboration: Proficiency in acting as a Technical Liaison, translating complex SEO requirements into clear, actionable tickets for development teams.
• Editorial Leadership: Experience in content quality control and briefing authors to ensure all material aligns with search intent and SEO standards.
• Proactive Ownership: You are a self-starter who thrives on solving complex technical puzzles and takes full accountability for meeting and exceeding KPIs.

Will be an advantage if you have (it's just a bonus skills, not mandatory):

• Experience in Healthcare/Medical SEO.
• Academic background in IT or Computer Science.
• Familiarity with Edge SEO (Cloudflare Workers/CDNs).
• Knowledge of GDPR/PII compliance for sensitive data niches.
• Experience managing Digital PR and high-authority link-building campaigns.

What We Offer

• 100% Remote: Work from anywhere with full support.
• Work-Life Balance: 28 days of paid annual leave.
• Transparency: A clear incentive system and well-defined KPIs.
• Stability: The security of a profitable, large-scale European company.
• Impact: The chance to work on socially significant, innovative international projects.

How to Apply

If you’re ready to take the next step in your SEO career, we’d love to meet you. Please submit your resume and examples of your achievements (data-backed success stories are highly encouraged).