Ernie Park
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Ernie Park Email & Phone Number

Co-Founder @ Lizzy Sleep - Noom for Baby Sleep at Lizzy Sleep
Location: New York City Metropolitan Area, United States 20 work roles 3 schools
1 work email found @hubspot.com 2 phones found area 888 LinkedIn matched
✓ Verified Jul 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email e****@hubspot.com
Direct phone (888) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Co-Founder @ Lizzy Sleep - Noom for Baby Sleep
Location
New York City Metropolitan Area, United States

Who is Ernie Park? Overview

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Quick answer

Ernie Park is listed as Co-Founder @ Lizzy Sleep - Noom for Baby Sleep at Lizzy Sleep, based in New York City Metropolitan Area, United States. AeroLeads shows a work email signal at hubspot.com, phone signal with area code 888, and a matched LinkedIn profile for Ernie Park.

Ernie Park previously worked as Co-Founder at Lizzy Sleep and Founder at Part-Time Tech. Ernie Park holds Bachelor Of Science, Computer Science from Massachusetts Institute Of Technology.

Company email context

Email format at Lizzy Sleep

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{first_initial}{last}@hubspot.com
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AeroLeads found 1 current-domain work email signal for Ernie Park. Compare company email patterns before reaching out.

Profile bio

About Ernie Park

I'm building the Lizzy Sleep app (https://lizzysleep.com) - the best way to teach your young child how to sleep independently. --My newsletter:Work isn't just 9-5. Learn how to build careers and companies differently. Join 3500+ other tech professionals and businesses 👉 https://parttimetech.io .----I've built my career as a software engineer and engineering leader. I've had the greatest impact and fun working on product-led growth. At Brex, I worked with teams looking to scale and diversify customer acquisition efforts. At HubSpot, I helped build the Growth Monetization teams that scaled the freemium business model as well as helped build and ship many products and features with tens of thousands of users. I enjoy building strong engineering teams and marrying those things to what makes a business successful. I left full time work during the pandemic to focus on a few things:1. Consulting. I'm open to lending my expertise in product-led growth, or engineering leadership advising. 2. Starting my own small software/tech businesses (parttimetech.io)3. Starting Park Family Farm. The vision for this farm is to serve our local community. I am in the process of refining this vision, but it likely involves supporting at-risk youth and families through food, employment, recreation, and other programming.4. Volunteering through CASA to support foster youth. I hope for my vocation to be at the intersection of tech, philanthropy, and sustainability (of all forms). As a Christian, I believe I and the Church have an enormous responsibility to be a powerful force for supporting the 'least of these'.Why am I writing this essay on LinkedIn? If any of these things sound interesting to you and you'd like to partner with me on it, send me a message.

Listed skills include Javascript, React.Js, Freemium, Amplitude, and 3 others.

Current workplace

Ernie Park's current company

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Lizzy Sleep
Lizzy Sleep
Co-Founder @ Lizzy Sleep - Noom for Baby Sleep
AeroLeads page
20 roles

Ernie Park work experience

A career timeline built from the work history available for this profile.

Co-Founder

Current

https://lizzysleep.comBeing a parent doesn't have to mean being tired.Lizzy Sleep offers guided sleep programs and tools to help parents teach their kids independent sleep skills. Our programs are designed not just to help you learn, but to help you commit to and apply a plan. When paired with 24/7 instant chat with Lizzy, you'll be on your way to better rest.

Jul 2023 - Present

Founder

Current

Part-Time Tech is a newsletter, podcast, and other media dedicated to growing the part-time tech economy. I want to help people: get a part-time job, and hire part-time talent.If you have thoughts or questions about part-time, reach out!Subscribe below. 👇

Aug 2022 - Present

Software Engineering/Leadership Consultant

Current
Self-Employed

* Software engineering consulting* Consulting with CTOs and Engineering Leaders, supporting them, their teams, and operations

Aug 2021 - Present

Owner

Current
Park Family Farm

A sustainable family farm focused on pasture raised eggs, fruits, and vegetables.Follow us on instagram @parkfamilyfarm.nj (https://www.instagram.com/parkfamilyfarm.nj/)

May 2021 - Present

Interim Head Of Engineering

Plano, Tx, Us

I was a fractional Head of Engineering for Arcade, a seed stage startup. I filled a leadership gap during a period of transition for the team. I recruited/hired engineers as well as the next full-time head of engineering, coached engineers, improved engineering practices, refined strategy, and supported the CEO and other leaders in helping move the business forward.

Jun 2022 - Dec 2022

Engineering Manager - Growth

San Francisco, California, Us

Help build growth teams that scale customer acquisition.

Mar 2021 - Aug 2021

Product Group Lead - Pricing & Packaging

Cambridge, Massachusetts, Us

I lead the product strategy for our Pricing & Packaging platform and systems which spans several teams across FinTech. I'm responsible for helping align what we build with our overall company pricing strategy and roadmap.

Aug 2020 - Feb 2021

Engineering Lead - Growth Monetization Product Group

Cambridge, Massachusetts, Us

As Engineering Lead, I'm a manager of managers, lead a direct team, and oversee a total group of ~15 frontend and backend engineers. Since joining Growth, we took product-led growth from a bet to a full blown discipline and product group driving significant portions of HubSpot's revenue.The group focuses primarily on driving growth in our freemium business which allows users to try the software and get value before paying. We are empowered to achieve this mission through the product however we see fit - through pricing pages, supporting packaging and go-to-markets, control over upgrade points, product qualified leads, reducing friction in the funnel, and more. We guide our process through controlled scientific experiments, quantitative analysis, and qualitative user research. We also build internal tools and data infrastructure to gain clearer insights and run experiments to ultimately serve our users better.

Apr 2018 - Feb 2021

Tech Lead - Growth Monetization

Cambridge, Massachusetts, Us

As Tech Lead, I was the engineering manager for a team of ~5 engineers and continued to make code contributions as well.

Jul 2017 - Apr 2018

Senior Software Engineer

Cambridge, Massachusetts, Us

Full-stack engineer developing HubSpot's Ads products. Our team develops the HubSpot Ads product to help businesses amplify their inbound marketing. The add-on provides full-funnel ROI reporting across AdWords, Facebook, and LinkedIn sponsored content along with ad creation tools.* Developed front-end for a brand new Ads product for release at Inbound 2015 under tight time constraints* Developed and maintained three API integrations with AdWords, LinkedIn, and Facebook* Helped small team achieve AdWords RMF compliance* Developed integration syncing Facebook Lead Ad conversions to HubSpot* Worked directly with Facebook in a partnership to create a drop-in Lead Ad creation flow. Helped establish a strong partnership which contributed to HubSpot becoming an official badged marketing partner.* Help onboard and mentor several team members* General maintenance, feature development, support, UI iteration, project management, product vision* Frontend: ES6, React, Redux, SASS, Backend: Dropwizard, Jackson, ElasticSearch, MySQL, Kafka---* Interviewed several dozen engineering candidates* Occasional cross-product talks and technical presentations

Jul 2015 - Jul 2017

Senior Software Engineer

Cambridge, Massachusetts, Us

Front-end engineer on a small new team building an in-house behavioral analytics solution. * The product and solution we developed was used by the entire product organization and company. It helped formalize the way we used data to inform development in product, other departments, and high level company strategy. * Developed the data model, UI, and JS tracking clients from scratch* Worked across the company to build a data model and philosophy for unified usage reporting across 30+ products.* Operate as an 'in-house' consultant for fellow product team members* Tech: ES6, React, Flux, SASS. Backend: Java, Dropwizard, Postgres, Redshift

Nov 2014 - Nov 2015

Software Engineer

Cambridge, Massachusetts, Us

Front-end engineer building social media marketing tools.* Helped design, research, and develop three major product releases: Social Compose, Social Inbox, and Social Reports, as well as maintain the rest of HubSpot's social products. Was the primary or sole front-end developer for most of tenure with team. Among the most heavily used tools at HubSpot. * Led efforts to increase awareness of front-end performance concerns through case studies and evangelism of resources and learnings. Developed an in-house WebPageTest rig to automate testing and establish baseline performance for all static apps to measure against.* Contributed to and developed core front-end libraries to speed up Backbone development* Tech: Coffeescript, Backbone, Jade, SASShttp://www.hubspot.com/products/social-inbox

Sep 2013 - Nov 2014

Chair / Leadership Team Member

Cornerstone Church Of Boston

The Leadership Team operates as the non-profit board and spiritual oversight for the church.As the chair, I am the primary liaison between the lead pastor (Exec. Director) and the board. Organizational responsibilities include setting and executing monthly board meeting agendas, overseeing the budget and budgeting process, staffing decisions, leading employee reviews, compensation reviews, and other business matters. Spiritually, the Leadership Team serves to maintain a pulse of the congregation and ensuring that the church's operations and teaching are healthy and consistent with Scripture.

Aug 2015 - Jul 2019

Software Engineer

Burlington, Massachusetts, Us

I was a full stack engineer for a Java-based branching survey tool. I developed product features as well as drove improvements to product, team, and development workflows and processes.

Oct 2012 - Sep 2013

Co-Founder

MicroEval was a Y Combinator (S12) funded startup founded to modernize the employee performance review. I was responsible for building the product and helped drive product decisions.

Apr 2012 - Dec 2012

Developer

Edx

Lanham, Maryland, Us

(This was MITx at the time, before edX had been developed). Developed infrastructure to make high quality education accessible to everyone around the world for free.Created xBoard for a small experimental project and senior thesis project.

Dec 2011 - Jun 2012

Software Engineering Intern

London, England, Gb

Worked on the analytics team with the same responsibilities asa full-time engineer. Helped ship a new product working across the whole analytics stack in addition to documentation and coordinating design with PMs. Designed and implemented a real-time analytics infrastructure prototype. Prototype was selected to be developed into a full product and won a company award for best project.

May 2011 - Aug 2011

Teacher

Africa Information Technology

Chosen as one of four instructors among several dozen applicants to teach a six week computer programming and entrepreneurship course to students at the Kigali Institute of Science and Technology. I was responsible for all aspects of the course including networking with administration, planning logistics, developing curriculum, delivering lectures, and supervising lab time. Students from the class have been able to create successful, viable tech businesses.

Apr 2010 - Aug 2010

Undergraduate Researcher/Developer

Mit Media Lab Human Dynamics Group

Designed and developed a web interface capable of displaying live data (location, speech amplitude, movement energy) generated from electronic sociometric badges. Prototypes were used to demonstrate the effectiveness of the data-collecting badges to laboratory sponsors.

Jun 2009 - Aug 2009

Industry Writer

Us

Wrote and maintained articles on the energy & gas industry to help casual investors make informed decisions.

Jun 2008 - Nov 2008
3 education records

Ernie Park education

Bachelor Of Science, Computer Science

Massachusetts Institute Of Technology

Education record

Y Combinator

High School

West Windsor-Plainsboro High School North
FAQ

Frequently asked questions about Ernie Park

Quick answers generated from the profile data available on this page.

What company does Ernie Park work for?

Ernie Park works for Lizzy Sleep.

What is Ernie Park's role at Lizzy Sleep?

Ernie Park is listed as Co-Founder @ Lizzy Sleep - Noom for Baby Sleep at Lizzy Sleep.

What is Ernie Park's email address?

AeroLeads has found 1 work email signal at @hubspot.com for Ernie Park at Lizzy Sleep.

What is Ernie Park's phone number?

AeroLeads has found 2 phone signal(s) with area code 888 for Ernie Park at Lizzy Sleep.

Where is Ernie Park based?

Ernie Park is based in New York City Metropolitan Area, United States while working with Lizzy Sleep.

What companies has Ernie Park worked for?

Ernie Park has worked for Lizzy Sleep, Part-Time Tech, Self-Employed, Park Family Farm, and Arcade.

How can I contact Ernie Park?

You can use AeroLeads to view verified contact signals for Ernie Park at Lizzy Sleep, including work email, phone, and LinkedIn data when available.

What schools did Ernie Park attend?

Ernie Park holds Bachelor Of Science, Computer Science from Massachusetts Institute Of Technology.

What skills is Ernie Park known for?

Ernie Park is listed with skills including Javascript, React.Js, Freemium, Amplitude, Conversion Optimization, A/B Testing, and Experimentation.

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