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X4 Life Sciences

Technology Specialist

Remote

London, United kingdom

Senior

Freelance

05-02-2026

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Skills

Test Attention to detail Training Architecture Agile

Job Specifications

Wearable Technology Specialist

This is a rare opportunity to join as a first technical hire (Founding Engineer) at an early-stage wearable technology startup focused on ushering in a new era of health, tech and AI consumer use. You will be instrumental in co-designing and building a signature MVP from scratch with the Founder & CEO. Someone with big ideas but a keen eye for detail would be ideal. This is a paid, part-time consultancy role demanding 1 day a month initially with the possibility of much more if the MVP is successful.

The Founder & CEO

You will be providing one-on-one counsel to the Founder who has a strong wellness and healthcare vision for game-changing wearable devices, a PhD in Biochemistry from the University of Cambridge and 13+ years delivering medical consulting for top-tier Pharma and Tech giants within both corporate environments and through agile consulting expertise. Your technical expertise will complement the Founder’s strong scientific and clinical expertise.

With a relentless passion for accuracy within big-picture health, the Founder is committed to extreme field testing. They personally validate sensor performance in diverse conditions, ranging from high-intensity training and aquatic environments to sedentary office settings.

The Role

This is ideal for someone currently working within a corporate or other full-time setting who has a passion for ‘thinking big’ and refining the next generation of HealthTech. You will provide expertise on MVP design and build in stages across several 1-day consulting instalments in the lead up to fundraising:

Concept and feasibility
Architecture & requirements (blueprint)
Planning and costs
Hardware prototyping
Testing and validation

Initial planning stages working with the Founder will be conducted remotely or with an optional London-based space or on-site manufacturing workstation once the hardware prototyping stage is reached.

Key Counsel Needed:

Step-by-step plan on building the MVP to match the Founder’s vision
Cost calculations to build the MVP
Recommendations on multiple avenues to test technical features in the lead up to the MVP build
Versatile mindset with the expectation to design, test, refine before we showcase a successful product to investors
Consideration of efficiency across manufacturing options

About You

To be successful in this role, you’ll bring:

An engineering qualification
2-3+ years’ experience in a role where you have been involved in the design and manufacture of a successful MVP, wearable device or devices
Exceptional attention to detail
An appreciation that consumer adoption requires strong usability
A passion for the Founder’s vision of producing wearable HealthTech to usher in a new era of health, tech and AI consumer use

What’s on Offer

Within the initial phase:

Limited paid consulting days with a competitive fixed fee and flexibility around your full-time commitments.
Opportunity to ‘join brains’ with a Founder who has wide-reaching healthcare and tech experience.

After the 3 months of consultancy:

Discretionary bonus options based on a successful partnership. This could be a cash bonus, equity in the company, co-founding routes, or long-term role.
The chance to reinvent the wheel for HealthTech in a very selective, lean environment where things can move as quickly as your ideas and execution.

If this sounds like you, we’d love to hear from you. Please apply directly or email a.cliff@x4lifesciences.com

About the Company

X4 Life Sciences partner with businesses across the entire life sciences spectrum, from early-stage R&D to commercial enterprises to provide world-class talent solutions. In order to offer the most effective, industry-leading expertise, we have specialized teams embedded in five key areas: Digital Health, Testing, Inspection & Certification (TIC), Pharma, Biotech & Medical Devices, Clinical & Healthcare, and Medical Communications. We are dedicated to helping our clients build high-performing teams whilst empowering candi... Know more