You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Oliver WelterOW

Average response time: 1 hour

About Oliver

Seasoned IT leader with 15+ years building scalable systems and teams in regulated industries. As CTO, CPO, and CISO, I co-founded and led a health-tech startup from zero to market and served as CTO at a surgical-tech company. What sets me apart is a holistic approach — I'm equally at home in the boardroom shaping strategy and compliance frameworks as I am designing system and software architectures, writing Terraform modules, or debugging Kubernetes clusters. I implement ISO 27001 and ISO 13485 management systems, integrate machine learning into certified medical devices, and design the DevSecOps pipelines that keep everything running. Based between Berlin and Singapore, I consult on infrastructure, security, and compliance across DACH and APAC markets.
  • German

    Native or bilingual

  • English

    Fluent

Can work on-site
Berlin (up to 50km)

Experience

  • Freelance
    Independent Consultant
    CONSULTING AND AUDITS
    July 2025 - Today (1 year)
    Berlin, Germany
    • Provided consultancy and interims project management
    • Supported full-cycle product development in regulated domains
    • Embedded machine learning in organisations and products
    • Established sovereign digital infrastructures for SaaS
    • Build up information security and quality management systems
    IT Architecture Information Security Management
  • Nia Health GmbH,
    Co-Founder and CTO
    MEDICAL
    August 2018 - June 2025 (6 years and 10 months)
    Berlin, Germany
    • Co-founded health-tech startup developing dermatology software
    • Secured pre-seed and seed funding rounds plus public grants
    • Built enterprise customer relationships and strategic partnerships (clinics, insurances, etc.)
    • Architected scalable product ecosystem and hybrid cloud infrastructure
    • Integrated machine learning into medical device development
    • Designed and implemented DevSecOps practices
    • Established a comprehensive integrated management system for quality and information security
    • Key technologies: Spring Boot, React Native, React, PyTorch, Kubernetes, Ansible, Terraform
    Product Development DevSecOps Machine learning CISO Regulatory Compliance
  • caresyntax GmbH,
    CTO
    MEDICAL
    September 2014 - August 2019 (4 years and 11 months)
    Berlin, Germany
    • Led development of surgical improvement solutions combining Internet of Medical Things and machine vision
    • Supported successful investment rounds and maintained key stakeholder relationships
    • Built cross-functional and cross-border teams spanning product management, software development, machine learning and hardware integration
    • Established product development processes based on agile methodologies
    • Implemented ISO 9001/13485 compliant quality management systems
    • Setup compliance documentation using Jira, Confluence and Polarion
    • Key technologies: Spring Boot, JavaFX, MQTT, PyTorch, C++, AngularJS
    Research and Development (R&D) Product Development Regulatory Compliance IT Architecture Machine learning

Recommendations

Be the first to recommend Oliver

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Humboldt Universität zu Berlin
    2011

Certifications

  • LPIC-3: 305 (Virtualization)
    Linux Professional Institute
    https://www.lpi.org/our-certifications/lpic-3-305-overview/
    Virtualisation KVM Proxmox Docker IT-Infrastruktur qemu Network Architecture Kubernetes
  • Safety Officer for Medical Devices
    ec eichhorst consulting
    Qualitätsmanagement ISO 13485 Medizinprodukte

Skill set

Categories