Will Lerner

CTO & Engineering Leader

📍 New York, NY • ✉️ will.lerner@gmail.com

I transform early-stage ideas into market-ready products by building world-class engineering teams.

Track Record: 30+ successful product launches across seed to growth-stage startups

Leadership: Built Monument's engineering team from zero, delivering a telemedicine platform that's changing how people approach alcohol recovery

Experience: Two-time founder with senior engineering roles at Sonder, Mirror, and Samsung

Passionate about building products that matter and teams that last.

Core Strengths

Team Building

Mentor developers into leaders while fostering strong engineering cultures

Technical Excellence

Full-stack architecture, rapid prototyping, and scalable systems

Product Focus

Ship pragmatic solutions that balance user needs with technical constraints

Experience

Chief Technology Officer

Monument

2019 – May 2025

Scaled a telemedicine platform to 100,000+ members, helping people change their relationship with alcohol
Built and coached a lean, high‑ownership engineering team that matured into new leadership roles
Oversaw development of automated insurance eligibility, revenue lifecycle management, video chat, and custom EMR
Modernised architecture on AWS (Kubernetes, Terraform, RDS), boosting release velocity and resiliency

Tech Lead

Sonder

2018 – 2019

Served as team lead on the consumer app and website at this hospitality and rental platform
Led implementation of flexible reservation changes, automated self‑service requests, and secure lock‑entry
Collaborated closely with product owners and stakeholders to align technical decisions with business goals
Supported technology foundation contributing to Sonder's growth leading up to its 2022 IPO

Independent Developer & Co‑Founder

NYC

2015 – 2017

Co‑founded Tower Health, prototyping data‑driven tools leveraging connected medical devices
Delivered React Native prototype for WeWork turning phones into building keycards
Built Android chat app for public.chat with ephemeral media sharing
Developed custom Android OS for stealth IoT device, collaborating on product strategy

Lead Android Engineer

Mirror

2017 – 2018

Customised Android OS and built onboarding, workout, and live‑streaming features
Partnered with product, design, and fitness teams to iterate via user feedback
Core functionality remained in production through Mirror's $500M acquisition by Lululemon

Android Engineer

Samsung Electronics

2014 – 2015

Developed smart‑TV remote, DVR, and media‑casting applications
Mentored junior engineers and pioneered connected‑home branding concepts
Concepts adopted across the division

Co‑Founder

Startup Giraffe

2011 – 2014

Built MVPs for 30+ startups (Zola, Electric Objects, Speedlist, WeWork pilots)
Led 12‑person team known for rapid prototyping and user‑centric development
Negotiated acquihire by Samsung, smoothly transitioning staff and IP

Projects

In May 2025, I started building side projects to explore the incredible new coding tools available today. From AI assistants to modern frameworks, these tools have transformed how we build software. I'll be adding more projects as I continue experimenting and learning.