Chief Technology Officer (CTO) / Technical Co-Founder in City of London
Chief Technology Officer (CTO) / Technical Co-Founder

Chief Technology Officer (CTO) / Technical Co-Founder in City of London

City of London Full-Time 80000 - 120000 £ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead the tech development of a groundbreaking healthcare platform and build an MVP.
  • Company: Join a stealth HealthTech startup with a mission to revolutionise healthcare.
  • Benefits: Significant equity stake, potential for competitive salary post-funding, and a chance to shape the future.
  • Why this job: Be a core member of the founding team and make a real impact in clinical AI.
  • Qualifications: Proven experience in software engineering, cloud infrastructure, and LLMs.
  • Other info: This is a unique opportunity to join at the ground level and drive innovation.

The predicted salary is between 80000 - 120000 £ per year.

Company: Stealth HealthTech Startup

Location: Remote / Hybrid (UK preferred but open)

Role Type: Co-Founder / Executive

Compensation: Significant Equity (Pre-Seed Stage) — transitioning to competitive salary + equity post-funding

About Our Customer: Our customer, a stealth-stage startup building the foundational intelligence infrastructure for the next generation of healthcare. Currently at Pre-Seed round to build our core product and launch it first pilot clients.

The Role: We are seeking a highly technical, hands-on Chief Technology Officer (CTO) to join as a core member of the founding team. This is not a purely managerial role. At this stage, you will be the lead architect and primary builder of the platform. You will be responsible for taking the company’s vision from architecture design to a fully functioning MVP and eventually scaling the engineering team post-funding. You must be comfortable writing production-grade code, designing complex data pipelines, and navigating the intersection of large language models (LLMs) and highly regulated healthcare data.

Key Responsibilities:

  • Hands-On Engineering & Architecture: Lead the end-to-end technical development of the MVP. Design and build scalable, secure, and HIPAA/GDPR-compliant data ingestion pipelines capable of handling heterogeneous clinical data. Architect the API layer that allows third-party clinical applications to seamlessly integrate.
  • AI & Machine Learning Integration
  • Technical Strategy & Leadership: Define the long-term technical roadmap, aligning engineering milestones with our funding stages (Pre-Seed to Seed, Series A and beyond). Make critical decisions regarding the technology stack, cloud infrastructure, and security protocols. As the company secures funding, transition from a solo builder to a technical leader—recruiting, mentoring, and managing a world-class engineering team.
  • Compliance & Security: Ensure the platform architecture natively supports cross-jurisdictional compliance (UK MHRA, US FDA, EU GDPR, India CDSCO). Implement federated privacy architectures or secure enclave processing to ensure patient data always remains protected and compliant.

What We Are Looking For:

Essential Experience:

  • Proven experience as a Senior Software Engineer, Lead Developer, or Technical Founder, ideally within a high-growth startup environment.
  • Deep, hands-on expertise in modern backend development (e.g., Python, Go, Node.js) and cloud infrastructure (AWS, GCP, or Azure).
  • Strong practical experience working with Large Language Models (LLMs), RAG (Retrieval-Augmented Generation) architectures, and NLP frameworks.
  • Experience designing and building robust, scalable APIs for enterprise or B2B platforms.

Highly Desirable:

  • Previous experience in HealthTech, MedTech, or working with clinical data standards (HL7 FHIR, SNOMED, ICD-11).
  • Understanding of healthcare data security and compliance requirements (HIPAA, GDPR, DSPT).
  • Experience building systems that require high levels of explainability, auditability, or regulatory oversight.

The Ideal Profile:

  • A Builder: You love writing code and solving complex architectural problems. You are not looking to just manage a team from day one.
  • A Pragmatist: You know how to balance technical perfection with the speed required to ship an MVP and secure early pilot clients.
  • A Visionary: You understand and identify the massive potential of the product being built.

Compensation & Commitment:

This is a Founding Team / Equity-Only role for the immediate Pre-Seed phase. You will receive a significant, founder-level equity stake in the company, commensurate with the risk and impact of joining at day zero.

How to Apply:

If you are ready to build that will define the next decade of clinical AI, we want to hear from you. Please send your CV, a link to your GitHub/portfolio, and a brief note explaining why you are the right technical leader for this mission.

Chief Technology Officer (CTO) / Technical Co-Founder in City of London employer: Stealth Mode Startup

Join a pioneering Stealth HealthTech Startup as a Chief Technology Officer (CTO) and be at the forefront of revolutionising healthcare technology. With a remote/hybrid work model, we offer a dynamic and collaborative culture that fosters innovation and personal growth, alongside significant equity opportunities in a pre-seed stage venture. As part of our founding team, you will have the unique chance to shape the technical direction of our groundbreaking product while working in an environment that values creativity, agility, and a shared vision for impactful change.
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Contact Detail:

Stealth Mode Startup Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Chief Technology Officer (CTO) / Technical Co-Founder in City of London

✨Tip Number 1

Network like a pro! Reach out to your connections in the tech and healthcare sectors. Attend meetups, webinars, or even online forums where you can chat with potential co-founders or investors. The more people you know, the better your chances of landing that CTO role.

✨Tip Number 2

Show off your skills! Create a portfolio that highlights your best projects, especially those related to healthcare tech. Make sure to include any work with LLMs or data pipelines. This will give potential partners a taste of what you can bring to the table.

✨Tip Number 3

Don’t just apply—engage! When you find a startup that excites you, reach out directly. Share your thoughts on their vision and how you can contribute. A personal touch can make all the difference in standing out from the crowd.

✨Tip Number 4

Keep learning and adapting! Stay updated on the latest trends in AI, machine learning, and healthcare compliance. This not only boosts your knowledge but also shows potential employers that you're committed to growth and innovation in the field.

We think you need these skills to ace Chief Technology Officer (CTO) / Technical Co-Founder in City of London

Hands-On Engineering
Architecture Design
Production-Grade Code Writing
Data Pipeline Design
API Development
AI Integration
Machine Learning
Technical Strategy
Cloud Infrastructure (AWS, GCP, Azure)
Large Language Models (LLMs)
NLP Frameworks
Compliance Knowledge (HIPAA, GDPR)
Security Protocols
HealthTech Experience
Scalable System Design

Some tips for your application 🫡

Show Your Passion for Building: When you write your application, let your enthusiasm for coding and building shine through. We want to see that you’re not just looking for a job, but that you’re genuinely excited about creating something impactful in the healthcare space.

Tailor Your CV to Highlight Relevant Experience: Make sure your CV reflects your hands-on experience with backend development and any relevant projects you've worked on. We’re looking for someone who can jump right in, so showcase your skills in modern tech stacks and any previous work in HealthTech or similar fields.

Include Your GitHub/Portfolio Links: Don’t forget to add links to your GitHub or portfolio! This is your chance to show us what you can do. Include projects that demonstrate your ability to build scalable systems and work with complex data pipelines.

Craft a Compelling Note: In your brief note, explain why you’re the perfect fit for this role. Be specific about your vision for the product and how your experience aligns with our mission. We want to hear your thoughts on the potential of clinical AI and how you plan to lead us there!

How to prepare for a job interview at Stealth Mode Startup

✨Know Your Tech Inside Out

As a CTO, you’ll need to demonstrate your deep understanding of backend development and cloud infrastructure. Brush up on your knowledge of Python, Go, Node.js, and the cloud platforms mentioned in the job description. Be ready to discuss specific projects where you've implemented these technologies.

✨Showcase Your Problem-Solving Skills

Prepare to talk about complex architectural problems you've solved in the past. Think of examples where you balanced technical perfection with the need to deliver quickly. This role is all about being hands-on, so share your experiences of writing production-grade code and building scalable systems.

✨Understand Compliance and Security

Given the nature of the healthcare industry, it’s crucial to be well-versed in compliance standards like HIPAA and GDPR. Be prepared to discuss how you’ve ensured data security in previous roles and how you would approach building compliant systems for this startup.

✨Articulate Your Vision

This role requires a visionary mindset. Be ready to explain how you see the potential of the product and how you plan to lead the technical strategy as the company grows. Share your thoughts on the long-term roadmap and how you would align engineering milestones with funding stages.

Chief Technology Officer (CTO) / Technical Co-Founder in City of London
Stealth Mode Startup
Location: City of London
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