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Kathrin Ayer Email & Phone Number

Engineering Manager, front-end engineer, focused on the back of front-end at Justworks Labs
Location: Brooklyn, New York, United States 23 work roles 2 schools
1 work email found @learnvest.com 3 phones found area 212 and 866 LinkedIn matched
✓ Verified July 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email · 3 phones

Work email k****@learnvest.com
Direct phone (212) ***-****
LinkedIn Profile matched
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Current company
Role
Engineering Manager, front-end engineer, focused on the back of front-end
Location
Brooklyn, New York, United States

Who is Kathrin Ayer? Overview

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Quick answer

Kathrin Ayer is listed as Engineering Manager, front-end engineer, focused on the back of front-end at Justworks Labs, based in Brooklyn, New York, United States. AeroLeads shows a work email signal at learnvest.com, phone signal with area code 212, 866, and a matched LinkedIn profile for Kathrin Ayer.

Kathrin Ayer previously worked as Engineering Manager at Justworks Labs and Summer Batch Fellow at Recurse Center. Kathrin Ayer holds Bfa, Fine Arts from Pratt Institute.

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Email format at Justworks Labs

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

About Kathrin Ayer

Kathrin Ayer is a Engineering Manager, front-end engineer, focused on the back of front-end at Justworks Labs. She possess expertise in flash, actionscript, web design, illustrator, wordpress and 40 more skills. She is proficient in French. Colleagues describe her as "Kathrin perfectly blends together technical expertise and leadership skills. What this means for her team is that the tasks are clear and have sound technology reasoning behind them; for stakeholders this means the product delivers high business value. When we collaborated on projects across the company, she was always helpful in making sure that her product seamlessly fit within our ecosystem. This is leadership at its best - thinking about other teams that are depending on your product. Together with being a great human being, these factors make Kathrin an amazing fit for technical leadership positions.", "Kathrin is one of the sharpest technical leaders I know. Working closely together on an internal component library, she kept our team moving forward in the right direction as we navigated complex waters and weather massive corporate transition. Thanks to Kathrin's incredible work ethic and charm -- our crew delivered a scalable product right on time and with high spirits. I couldn't have made it with out her and any team would be pleased to have her.", and "Kathrin was an amazing, collaborative, and results-driven developer that I've had the pleasure to work with. Despite multiple engineering and organizational blockers, Kathrin consistently found areas to progress the product and project. It's clear she is an extremely talented developer and would be an asset to any organization she works with."

Listed skills include Flash, Actionscript, Web Design, Illustrator, and 41 others.

Current workplace

Kathrin Ayer's current company

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Justworks Labs
Justworks Labs
Engineering Manager, front-end engineer, focused on the back of front-end
AeroLeads page
23 roles · 30 years

Kathrin Ayer work experience

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

Engineering Manager

Current

New York, Ny, Us

Managing a talented team of front-end and full stack engineers who build the internal tools for Payroll.

Oct 2023 - Present

Summer Batch Fellow

New York, Ny, Us

Admitted to the Recurse Center in New York for 3 months of exploration, learning, coding with a community of software engineers.Projects include:- pipeline to consume pushes from one repo in the generation of a readme in another- developing services for managing a repository of verbs and consuming those verbs, first stored in MongoDB, but planning to migrate to MySQL when the schemas are settled- working in an NX monorepo to understand its approach to module sharing as well as support for Node and Deno- Django chat app- Node module development- NextJS app that consumes multiple feeds

Mar 2023 - Aug 2023

Engineering Manager

San Francisco, California, Us

Focused on the internal developer experience at Vercel as a manager:- migrated from Cypress to Playwright, reduced flakiness to under 1%, eliminated support costs and created tooling to increase visibility- reduced the time to complete code quality checks by 40%- met with GitHub's merge queue team for feedback- normalized build settings in the API monorepo in preparation for a migration to pnpm, and eventually a merge into the main monorepo- 2 design system effortsRan our external QA effort:- onboarded the QA team to Vercel’s UI needs- stood up processes for collaborating with the QA team- onboarded internal users to maximize utilityInitially integrated internal DX with Spaces (merged two teams, realigned priorities, unified team documentation).Researched and selected our software productivity platform, and onboarded engineering managers to the platform.Presented roadmaps and initiatives, migrated the team onto Linear and project planning, wrote up and socialized internal roadmap proposals, and created visual aids to explain quality processes as related to build processes.

May 2022 - Mar 2023

Associate Director: Front End

Arlington, Va, Us

Developed the engineering roadmap for the design system. Collaborated with leadership to identify opportunities, coordinated with stakeholders, established milestones and long-term direction. Worked with senior management on inner-open-source, socialization, funding, and business strategy. Coordinated with stakeholders and consumers in other BUs to develop solutions and provide support for design systems within their organizations.Drove the creation of new engineering deliverables to respond to internal and external needs. Provided tactical and strategic plans spanning quarters and years. Drove the prioritization of engineering value in the assets and pay-down of technical debt. Prepared for migration onto a CMS for EDX interface needs.Responsible for team and career development for the front-end group, securing educational support, creating opportunities for engineers to present to their peers and leaders, arranging informational interviews within the company and mentoring.Presented to potential interns and junior engineers to encourage interest in joining the EDX for a rotation in Raytheon’s Digital Leadership program.Ran the engineering standards group for two years, to establish and maintain guidelines, including coordinating with our in-house technical writer to generate business-friendly documentation.

Aug 2021 - May 2022

Engineering Manager

Arlington, Va, Us

Worked with DevOps to go from quarterly to at-will releases (approved by DevOps), and to go from our P5 instance to AWS to Corporate’s Azure.Established a workflow to allow engineers to trigger deploys up to the final production release.Led a rotating team of 2-10 engineers, ranging in skill from intern to principle engineer. Provided guidance and support to project and product management. Added regression testing, including visual regression using Puppeteer on local machines and Selenium Grid in our QA environment.Wrote the accelerator’s code review policy, emphasizing collaboration and knowledge sharing.Assessed Rust and Deno for use within the EDX. Screened all front-end and front-end-focused full-stack candidates, refined and maintained the hiring process, conducted the code-review section of the on-site, wrote job descriptions, coordinated with Corporate and our internal recruiter to fill positions. Coordinated efforts with the IOT team in Collins, and deployment teams in Otis and P&W.

Sep 2018 - May 2022

Senior Manager - Engineering

Arlington, Va, Us

Technical lead for Raytheon's design system, built in Stencil with a React documentation site. Led the decision to add a CSS framework to the web component system.Planned and tracked status of web component and CSS parity. Contributed to both products as well as created a testing project to allow automated QA testing of components and CSS in tandem.Led technical discovery for an application that connects to and coordinates with vendor-provided identity management services. Discovery included proof-of-concepts for configured user flows, communication across networks, and working with the vendor’s specialists to provide unsupported features.Continually refined the architecture of the monorepo to automate asset creation. Migrated packages out of our monorepo to separate the marketing/documentation project from the production of assets.

Sep 2018 - Mar 2022

Software Engineer

New York, New York, Us

Collaborated with project management and design to update the visual layer of the onboarding application. Migrated the project off of Compass to NodeSass, cutting build times in half.Created middle-ware as part of a migration to GraphQL for several services. Coordinated with consuming teams to establish requirements, delivery strategy and integration.

Feb 2016 - Mar 2018

Contract Frontend Engineer

New York, Ny, Us

As a contract senior engineer, worked on modules for a new product based on Bootstrap, focusing on javascript classes, leading two front-end engineers, integrating into a C# back-end.

Nov 2015 - Feb 2016

Frontend Engineer

Cbs

New York, Ny, Us

Acted as team lead for the Apps Team, which handled our primary player (player.radio.com) and our various embeddable players, using our restful API in Django to access various CBS Local APIs. The front-end was built in AngularJS with Compass/Sass for the CSS.Also built the initial UI for our podcasting service.

Jul 2013 - Jul 2015

Interactive Developer

Los Angeles, Ca, Us

Created engagements for mobile (iPhone/Android) with Javascript, CSS and HTML5. programmed flash games and rich interaction for engagements (opt-in rich-media running on networks such as pandora and Zynga). Highlights include a biscuit- serving game for pillsbury, a shooter game for the WB’s Supernatural, a character-poll for Lawless, a customize-your-photo engagement with product placement for international delight, and an identify-a-character for Escape From Planet Earth.

Jul 2012 - May 2013

Freelance Flash Developer

Euro

Programmed touch screens, video players and iOS-iPad/Air, and Exploria tablet applications for major pharmaceutical companies.

Jun 2011 - Jun 2012

Flash Developer

Maude

Developed Facebook widgets for the 2010 MTV movie awards, FX’s "Sons of Anarchy" and "The League" season premieres with Facebook and Twitter sharing. the MTV widget featured voting, in-widget video, and live news feeds. "Sons of Anarchy" was a photo-modification/sharing widget. The League widget randomly generated logos, with over 700 possible combinations. other rich-media projects included for Cicso’s Flip and Valet, MTV’s Hard Times of RJ Berger, Faster (2010) and The Mechanic (2011), and FX’s Archer.

2010 - Jan 2011

Freelance Developer

London, London, Gb

2011 - 2011

Flash Developer

Draftfcb

Freelance flash developer working on interfaces for tablets and on-line edetails.

2009 - Mar 2010

Freelance Designer And Flash Developer

'Nition Design (Chandler Chicco Companies)
2010 - 2010

Freelancer

Ogilvy Pr

Responsible for the design of logos, press and presentation materials, collateral and emails for a wide variety of clients.

2005 - 2010 ~5 yrs

Flash Developer - Freelance

New York, Ny, Us

Responsible for the creation of rich-media banners, including writing original code and Motifing. I've created ad-pods, video players, and programmed a quiz for the upcoming ReachBrand website, which should launch in early 2009.

Mar 2008 - Jan 2009

Web Designer - Freelance

Paris, Fr

Created emails, landing pages, simple banners, and small Flash pieces for the WomanWithin, Roamans, BrylaneHome and OneStopPlus brands.

Mar 2007 - May 2008

Illustrator

New York, Ny, Us

Illustrated "A Unicorn Is Born," published in 2007 through Abrams Image. The book has 20 full-sized illustrations in water-color, gauche, and ink of various scenes in the story.

Feb 2007 - Oct 2007

Layout Artist And Illustrator - Freelance

Bearport Publishing

Created layout templates for series of children's narrative non-fiction, laid out many of the books for the Dinosaur Hunters series, illustrated several new dinosaurs for the same series, and also created illustrations for the SuperSize series.

2006 - 2006

Book Designer

London, Gb

Developed art direction and design for a series of leveled readers covering topics such as history and social studies.

2004 - 2004

Studio Artisit

Mnh | Partners

Studio artist - layout, design research, Photoshop compositing, presentation, retouching.

2000 - 2003 ~3 yrs

Professional Freelancer

Milano, Mi, It

Designed window displays for the Emporio Armani line of stores. This involved setting type and doing custom layouts on architectural elevations, as well as indicating merchandise layouts.

1997 - 1997
2 education records

Kathrin Ayer education

Bfa, Fine Arts

Pratt Institute

Mfa, Sculpture

Claremont Graduate University
FAQ

Frequently asked questions about Kathrin Ayer

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

What company does Kathrin Ayer work for?

Kathrin Ayer works for Justworks Labs.

What is Kathrin Ayer's role at Justworks Labs?

Kathrin Ayer is listed as Engineering Manager, front-end engineer, focused on the back of front-end at Justworks Labs.

What is Kathrin Ayer's email address?

AeroLeads has found 1 work email signal at @learnvest.com for Kathrin Ayer at Justworks Labs.

What is Kathrin Ayer's phone number?

AeroLeads has found 3 phone signal(s) with area code 212, 866 for Kathrin Ayer at Justworks Labs.

Where is Kathrin Ayer based?

Kathrin Ayer is based in Brooklyn, New York, United States while working with Justworks Labs.

What companies has Kathrin Ayer worked for?

Kathrin Ayer has worked for Justworks Labs, Recurse Center, Vercel, Raytheon Technologies, and Learnvest.

How can I contact Kathrin Ayer?

You can use AeroLeads to view verified contact signals for Kathrin Ayer at Justworks Labs, including work email, phone, and LinkedIn data when available.

What schools did Kathrin Ayer attend?

Kathrin Ayer holds Bfa, Fine Arts from Pratt Institute.

What skills is Kathrin Ayer known for?

Kathrin Ayer is listed with skills including Flash, Actionscript, Web Design, Illustrator, Wordpress, User Experience, Css, and Interactive Advertising.

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