Series A · circadian performance systems V3LA One — clinical validation underway
Team

Built by people who work the shift.

V3LA started on an overnight rotation with a spreadsheet and a thermometer. Fifteen people now, and every hire has either lived the problem or spent a career measuring it.

Founder & CEO

Adrián Solís-Vance

Founded V3LA to solve a problem he experienced firsthand over years on the night shift.

After years of overnight healthcare work, he observed that consumer wearables were designed almost exclusively around standard daytime schedules. The first version of V3LA began as a spreadsheet, a low-cost thermistor, and a series of self-conducted experiments across four-on/four-off rotations.

The concept became a company once the pattern proved consistent across colleagues on the same unit. As founder, he maintains direct oversight of the product's scientific claims — defining what the estimator may report, what a prescription may state, and where the product must remain silent due to insufficient confidence in the underlying data.

Continues to work night shifts personally and evaluates every release under real overnight conditions prior to launch.

Healthcare, nights SwiftUI Founder, 2025
Founder's own record
Nights worked since 2019610+
Self-logged days of temperature1,340
Prototypes worn to failure11
Wearables tried and abandoned6

"I built the first version for one person on one rota. The company is that, generalised carefully."

Leadership

Four disciplines, one hypothesis. Everyone here owns a whole surface.

Science
Dr. Sofia Reyes
Head of Science

Holds scientific ownership of the estimator and all published claims, including retractions. Brings a decade of research experience in circadian and sleep physiology, with a focus on translating phase estimation from laboratory settings to wearable devices.

Science
Dr. Ilse Marchetti
Validation Lead

Former principal investigator at a sleep research laboratory. Directs DLMO comparison studies and reviews every protocol prior to external release.

Hardware
Ravi Anand
Hardware Lead

Specialist in low-power sensing with three shipped wearable products. Responsible for thermal design, power budget management, and the technical rationale for excluding PPG from the sensor suite.

Hardware
Katja Beren
Firmware Lead

Delivers nine days of battery life from a single coin cell, cryptographically signed firmware updates, and off-finger detection that remains reliable through surgical gloves.

Modelling
Dr. Nour Haddad
ML Lead

Specializes in state-space models and time-series inference. Reduced the limit-cycle oscillator model's on-device runtime to under one second.

Modelling
Tobias Ferrand
Data Engineering

Manages 86,400 daily samples per user through an auditable data architecture, avoiding unmanageable data lake sprawl. Also maintains the research export pipeline.

Product
Inés Okafor
Design Lead

Designs interfaces that remain legible under conditions of extreme fatigue, including hour eleven of an overnight shift. Defines the criteria for any notification that interrupts the user.

Product
Priya Raman
iOS Lead

Builds the product's SwiftUI, HealthKit, and BLE integrations — the surface every user interacts with directly — and personally tests it during night shifts.

Commercial
Marcus Delgado
Clinical Partnerships

Converts letters of intent into deployed units across health system partners, while ensuring individual employee data is never disclosed to employers.

Operations
Selin Yıldız
Regulatory & Quality

Maintains the product's classification as a general wellness device, owns the regulatory claims matrix, and defines the boundaries of permissible product language.

Operations
Dana Whitmore
Supply & Fulfilment

Oversees manufacturing tooling, production yield, and the sizing kit. Designed the returns policy to account for imperfect first-time ring fit.

Science
Huriel Gonzalez
Intern

Recently joined the team and will lead development of the validation dataset, converting raw pilot session data into a resource the broader organization can build upon.

Open seat
Circadian Research Scientist

The one open position on the team. A rigorous, six-stage interview process over two weeks, designed to ensure the right fit for both sides.

Apply →

Advisors

Dr. Peter Lindqvist
Occupational medicine

Expert in fatigue risk management systems across aviation and healthcare. Ensures product claims remain consistent with supporting evidence.

Sara Whitfield
Regulatory strategy

Specializes in wellness-to-medical-device regulatory transitions. Advises on permissible product language while V3LA One remains classified as a general wellness product.

Denise Aluko, RN MSN
Nurse leadership

Brings thirty years of experience in unit staffing. Her guidance ensures Roster Engine never exposes individual employee data to employers.

Wei-Lin Chen
Consumer hardware ops

Specializes in contract manufacturing and production yield. Joined during the tooling phase, a critical stage for hardware development.

We're hiring one role.

Circadian Research Scientist — a rigorous, six-stage interview process over two weeks.

See the role