Yassi Mortensen
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Yassi Mortensen Email & Phone Number

Senior Software Engineer at Squarespace at Squarespace
Location: New York, United States 12 work roles 2 schools
1 work email found @squarespace.com 2 phones found area 858 LinkedIn matched
✓ Verified Jul 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email y****@squarespace.com
Direct phone (858) ***-****
LinkedIn Profile matched
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Current company
Role
Senior Software Engineer at Squarespace
Location
New York, United States
Company size

Who is Yassi Mortensen? Overview

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Quick answer

Yassi Mortensen is listed as Senior Software Engineer at Squarespace at Squarespace, a with 501 employees, based in New York, United States. AeroLeads shows a work email signal at squarespace.com, phone signal with area code 858, and a matched LinkedIn profile for Yassi Mortensen.

Yassi Mortensen previously worked as Senior Software Engineer at Squarespace and Software Engineer at The New York Times. Yassi Mortensen holds Bachelor'S Degree, Molecular, Cell, And Developmental Biology from University Of California, Santa Cruz.

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Email format at Squarespace

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{first_initial}{last}@squarespace.com
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Profile bio

About Yassi Mortensen

Full stack software engineer with a passion for making the web a beautiful place. With experience in Ruby on Rails and JavaScript/React and a background in molecular biology, I discovered web development through my experience with genetic data analysis. I bring strong skills in critical thinking and creative problem solving that help companies design and build beautiful consumer products.

Listed skills include Full Stack Web Development, Javascript, Ruby On Rails, Responsive Web Design, and 38 others.

Current workplace

Yassi Mortensen's current company

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Squarespace
Squarespace
Senior Software Engineer at Squarespace
225 Varick Street, 12th Floor, New York, NY 10014, us
Website
Employees
501
AeroLeads page
12 roles

Yassi Mortensen work experience

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

Senior Software Engineer

Current

New York, Ny, Us

Aug 2022 - Present

Software Engineer

New York, Ny, Us

Frontend engineering lead on the cross-functional team that built and continues to maintain a new Online Cancel application for digital subscribers, for which I received the Publisher’s AwardFullstack lead on the Offboarding project, which involves scoping, building, and maintaining a Google Cloud service to send recapture emails to recently canceled subscribersFounding member and leader on the Community Engagement pillar of the Javascript CoP, a new community of practice organization that will promote NYT engineering power and scope both internally and externallyOrganizing tech talks, onboarding new hires, and fostering an open networking environment in a leadership role on the Internal Communications pillar of Women in TechCreated a universal Technical Design Document Template, which is the new standard for planning technical projects on the Retention engineering teamBuilt an A/B test and redesign of the Manage Billing application within the Payflow, in collaboration with the Churn Reduction team of Growth. This project lead to a 14% lift in reactivation of recently lapsed subscriptions

Jul 2020 - Jul 2022

Software Engineer

Brooklyn, New York, Us

Was the primary point of contact for Refinery29's user-facing React/Redux web application, refinery29.com.Wrote consumer-facing code for the website of Refinery29, impacting the experience of millions of users worldwide. Worked with members from the Product team to improve ad visibility, clickthrough rates, and customer loyalty by using engineering best practices and technologies.Assisted in closing out and shipping a large-scale site redesign of the entire www.refinery29.com website, taking in input from UX/UI designers and Product teams. Implemented a “trending videos” module that touched every part of the stack, which drove higher click-through rates on Refinery29 video/series products.

Jul 2018 - Nov 2018

Software Engineering Intern

Brooklyn, New York, Us

Apr 2018 - Jun 2018

Full Stack Web Developer

Flatiron School

An intensive training program designed to equip New Yorkers with the skills necessary to launch careers in web development. This program includes three months of full-time on-campus training, including classes/lectures, individual, pair and group programming projects, code challenges, presentations and more.Studied a variety of web development languages, frameworks, and libraries in-depth, including Ruby, Rails, Sinatra, Javascript, jQuery, SQL, ActiveRecord, Git, HTML, CSS, React, and ReduxCollaborated on project teams to develop and present a variety of web-based applications and build web development skills and efficiency, including:AccountableA personal goal setting tool that uses analytics to track your progress+ Built API and schema using Ruby on Rails and ActiveRecord Serializer + Integrated ChartJS for data analytic rendering of relevant charts+ Implemented Javascript React and Redux Libraries for a dynamic user experience+ Customized CSS for unique app stylingBlushAn image discovery and bookmarking site built in React and inspired by Pinterest + Designed API and data rendering from scratch using Ruby on Rails and the MVC pattern+ Seeded database with 1,400 pictures from third-party API Unsplash + Applied paginated API requests and LazyLoad React library for responsive and timely image loading + Implemented CSS grid layout styling to display organized content on each page loadGame of DeThronesA Game of Thrones parody game where the user can choose their own adventure+ Applied Javascript techniques for single-page user interface and progress through their individual story+ Utilized Git branches and pull requests to maintain a distributed workflow amongst a 3-member team+ Implemented NokoGiri for website scraping and database seeding + Integrated Bootstrap and CSS animations for a responsive user experience

Oct 2017 - Jan 2018

Research Specialist

San Francisco, California, Us

Constructed over 4,000 gene deletion strains for the human fungal meningitis pathogen Cryptococcus neoformans Executed high throughput biolistic transformations on highly virulent strainsSubmitted complete library into the national Fungal Genetic Stock Center for unrestricted use by the scientific community. Designed experiments on each deletion strain to test for known virulence attributes

Jun 2015 - May 2017

Research Assistant

Santa Cruz, Ca, Us

Conducted independent genetic research projects with supervision of the Principal Investigator Performed plasmid stability experiments and generational studies on yeast histone mutants and yeast controlsBuilt continual subject matter knowledge in genetic innovations through relevant primary and secondary scientific literature

Mar 2014 - Jun 2015

Undergraduate Research Intern

Washington, Dc, Us

Supported the Principal Investigator with experimental procedures involving hazardous organic chemicalsMaintained cleanliness, organization, and efficiency of the materials and tools used in the laboratory

Jun 2014 - Sep 2014

Sea-Phages Phagehunter

Chevy Chase, Maryland, Us

Isolated a novel bacteriophage, Critter, from the Santa Cruz mountains and characterized its structure and genome using learned molecular biology and genetics techniques.Created online profile of phage Critter on the Mycobacteriophage Database, PhagesDB.com, including discovery information, characterization, and images of plaque morphology, restriction digest analysis of isolated genomic DNA, and Electron Microscope picture of phage.Annotated the genome of bacteriophage Chunky using DNA Master and Phamerator and submitted finished annotation to GenBank for publishing.Presented the Chunky genome annotation at the national HHMI SEA-PHAGES Symposium at their Janelia Farm Research Campus in Ashburn, VA.

Sep 2013 - Jun 2014

Resident Assistant

Santa Cruz, Ca, Us

Maintained the Judicial responsibilities for the Housing Contact and Rules of Conduct as part of the University Housing units for 24 students. Planned, mentored and led social events for undergraduate residing in six housing units. Provided information and resources to students about the organization and programs available on university campus.

Sep 2012 - Jun 2013

Chief Executive Assistant

Advanced Rehabilitation Technologies

Sent out notification letters for rehabilitation machines usage when the patient or their insurance stopped making payments for the services. Contacted insurance companies and adjustors by phone regarding court cases and lawsuits that the company was involved. Scanned databases of patient files for fraudulent cases to provide reports for executive management staff.

Jun 2012 - Sep 2012
Team & coworkers

Colleagues at Squarespace

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2 education records

Yassi Mortensen education

Bachelor'S Degree, Molecular, Cell, And Developmental Biology

University Of California, Santa Cruz

Full-Stack Web Development

Flatiron School
FAQ

Frequently asked questions about Yassi Mortensen

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

What company does Yassi Mortensen work for?

Yassi Mortensen works for Squarespace.

What is Yassi Mortensen's role at Squarespace?

Yassi Mortensen is listed as Senior Software Engineer at Squarespace at Squarespace.

What is Yassi Mortensen's email address?

AeroLeads has found 1 work email signal at @squarespace.com for Yassi Mortensen at Squarespace.

What is Yassi Mortensen's phone number?

AeroLeads has found 2 phone signal(s) with area code 858 for Yassi Mortensen at Squarespace.

Where is Yassi Mortensen based?

Yassi Mortensen is based in New York, United States while working with Squarespace.

What companies has Yassi Mortensen worked for?

Yassi Mortensen has worked for Squarespace, The New York Times, Refinery29, Inc., Flatiron School, and Ucsf.

Who are Yassi Mortensen's colleagues at Squarespace?

Yassi Mortensen's colleagues at Squarespace include Ieva Volante, Jolaina Barrow, Junelle Cacatian, Eric Larsen, and Cindy D..

How can I contact Yassi Mortensen?

You can use AeroLeads to view verified contact signals for Yassi Mortensen at Squarespace, including work email, phone, and LinkedIn data when available.

What schools did Yassi Mortensen attend?

Yassi Mortensen holds Bachelor'S Degree, Molecular, Cell, And Developmental Biology from University Of California, Santa Cruz.

What skills is Yassi Mortensen known for?

Yassi Mortensen is listed with skills including Full Stack Web Development, Javascript, Ruby On Rails, Responsive Web Design, Data Analysis, Research, Laboratory, and React.Js.

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