Jan Koszewski
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Jan Koszewski Email & Phone Number

Senior Software Engineer at Github at GitHub
Location: Arlington, Virginia, United States 10 work roles 1 school
1 work email found @github.com 2 phones found area 515 and 703 LinkedIn matched
4 data sources Profile completeness 100%

Contact Signals · 1 work email · 2 phones

Work email j****@github.com
Direct phone (515) ***-****
LinkedIn Profile matched
3 free lookups remaining · No credit card
Current company
Role
Senior Software Engineer at Github
Location
Arlington, Virginia, United States
Company size

Who is Jan Koszewski? Overview

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Quick answer

Jan Koszewski is listed as Senior Software Engineer at Github at GitHub, a company with 501 employees, based in Arlington, Virginia, United States. AeroLeads shows a work email signal at github.com, phone signal with area code 515, 703, and a matched LinkedIn profile for Jan Koszewski.

Jan Koszewski previously worked as Senior Software Engineer at Github and Lead Software Engineer at Stitch Fix. Jan Koszewski holds Bachelor Of Arts (Ba), Political Science And Government from Grinnell College.

Company email context

Email format at GitHub

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{first_initial}{last}@github.com
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AeroLeads found 1 current-domain work email signal for Jan Koszewski. Compare company email patterns before reaching out.

Profile bio

About Jan Koszewski

Jan Koszewski is a Senior Software Engineer at Github at GitHub. He possess expertise in rails, ruby, ruby on rails, objective c, ios development and 8 more skills.

Listed skills include Rails, Ruby, Ruby On Rails, Objective C, and 9 others.

Current workplace

Jan Koszewski's current company

Company context helps verify the profile and gives searchers a useful next step.

GitHub
Github
Senior Software Engineer at Github
88 Colin P Kelly Jr St, San Francisco, CA 94107, us
Website
Employees
501
AeroLeads page
10 roles

Jan Koszewski work experience

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

Senior Software Engineer

Current

San Francisco, CA, US

Sep 2021 - Present

Lead Software Engineer

San Francisco, CA, US

May 2020 - Aug 2021

Senior Software Engineer

San Francisco, CA, US

Jun 2018 - May 2020

Software Engineer

US

Sep 2016 - May 2018

Senior Software Development Engineer

Washington, DC, US

Responsible for all engineering efforts related to the LivingSocial merchant platform; responsible for code review and architecture decisions on 19+ merchant-specific applications, gems, and apis; regularly mentor junior developers and pair with senior level engineers across the LivingSocial build team to enhance and improve the merchant experience

Jun 2016 - Sep 2016

Career Software Development Engineer

Washington, DC, US

Member of merchant web core services team that oversees development on the LivingSocial Merchant Center merchant web portal; primary engineer for new feature development on Merchant iOS app. Implemented realtime offer adjustment and cap management. Merchants can pause or set specific times when their promotions are featured throughout the LivingSocial.

Jan 2014 - May 2016

Associate Software Development Engineer

Washington, DC, US

Junior member of the merchant web core servces team at LivingSocial. Worked to implement the merchant demo website so that LivingSocial sales staff can showcase the full web experience to prospective merchants using tailored data without needing to access the production web portal

Aug 2012 - Jan 2014

Hungry Academy Developer In Training

Washington, DC, US

Intensive five-month ruby on rails bootcamp. Tasked with developing and deploying a ruby command line application or rails web application every 1-2 weeks in teams of 2-4 other developers in trainingKey projects included a csv-parsing ruby CLI and singleton datastore, a redesign of the donorshoose.com homepage written in spine.js, a service-backed.

Mar 2012 - Jul 2012

Software Testing Associate

Ppc

Trevose, Pennsylvania, US

Dec 2011 - Mar 2012
Team & coworkers

Colleagues at GitHub

Other employees you can reach at github.com. View company contacts for 501 employees →

1 education record

Jan Koszewski education

  • Grinnell College
    Grinnell College
    Political Science And Government
FAQ

Frequently asked questions about Jan Koszewski

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

What company does Jan Koszewski work for?

Jan Koszewski works for GitHub.

What is Jan Koszewski's role at GitHub?

Jan Koszewski is listed as Senior Software Engineer at Github at GitHub.

What is Jan Koszewski's email address?

AeroLeads has found 1 work email signal at @github.com for Jan Koszewski at GitHub.

What is Jan Koszewski's phone number?

AeroLeads has found 2 phone signal(s) with area code 515, 703 for Jan Koszewski at GitHub.

Where is Jan Koszewski based?

Jan Koszewski is based in Arlington, Virginia, United States while working with GitHub.

What companies has Jan Koszewski worked for?

Jan Koszewski has worked for Github, Stitch Fix, In-Q-Tel, Livingsocial, and Ppc.

Who are Jan Koszewski's colleagues at GitHub?

Jan Koszewski's colleagues at GitHub include Nima Yousefi, Sarah Aladetan, Maile Lazor, Ruth Francis, and Isaac Shalom.

How can I contact Jan Koszewski?

You can use AeroLeads to view verified contact signals for Jan Koszewski at GitHub, including work email, phone, and LinkedIn data when available.

What schools did Jan Koszewski attend?

Jan Koszewski holds Bachelor Of Arts (Ba), Political Science And Government from Grinnell College.

What skills is Jan Koszewski known for?

Jan Koszewski is listed with skills including Rails, Ruby, Ruby On Rails, Objective C, Ios Development, Javascript, Python, and Css.

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