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Sean Jun Email & Phone Number

Full Stack Engineer at American Express
Location: Greater Phoenix Area, United States, United States 10 work roles 3 schools
1 work email found @americanexpress.com LinkedIn matched
✓ Verified Jun 2026 4 data sources Profile completeness 100%

Contact Signals · 1 work email

Work email s****@americanexpress.com
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Current company
Role
Full Stack Engineer
Location
Greater Phoenix Area, United States, United States

Who is Sean Jun? Overview

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Quick answer

Sean Jun is listed as Full Stack Engineer at American Express, based in Greater Phoenix Area, United States, United States. AeroLeads shows a work email signal at americanexpress.com and a matched LinkedIn profile for Sean Jun.

Sean Jun previously worked as Front End Engineer II at Digital Air Strike and Coding Instructor at Thinkful. Sean Jun holds Bachelor Of Science (B.S.), Biochemistry from Uc Santa Barbara.

Company email context

Email format at American Express

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{first}.{last}@americanexpress.com
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AeroLeads found 1 current-domain work email signal for Sean Jun. Compare company email patterns before reaching out.

Profile bio

About Sean Jun

Hi, I'm Sean Jun, a Full Stack Engineer šŸ§‘šŸ»ā€šŸ’» I build apps primarily with React/Node.js and other skills includingšŸ‘‡Languages/Frameworks: JavaScript/TypeScript, Node.js/Express, React/Hooks/React Native, Python, Angular, GraphQL, PostgreSQLWeb: Prisma, MongoDB, Bootstrap, D3.js, Socket.io, styled-components, Passport, OAuth, Firebase, Webpack, Git, MJML, AWSTools/Testing: Heroku, Docker, Travis CI, Mocha/Chai, Jest/enzyme/react-testing-library, Selenium, CypressI come from a strong STEM background (with 9-years of Chemical Engineering experience) and believe that programming is similar to science. Our eagerness for knowledge help advance humanity.

Listed skills include Javascript, React.Js, Node.Js, Css, and 24 others.

Current workplace

Sean Jun's current company

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American Express
American Express
Full Stack Engineer
AeroLeads page
10 roles

Sean Jun work experience

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

Full Stack Engineer

Current

New York, NY, US

  • US Partner Acquisition Team ā€˜Partner Gambit’ Project - Front-End Development: Overhauled the front-end interface. - Back-End Integration: Updated PSL request objects for server integration. - React Components: Built.
  • Global Acquisition Team - Modular Architecture: Developed an application with a modular system where each geo-location customizes its components. - Dynamic UX: Introduced dynamic application fields based on user.
  • Tech: React/Node.js, Angular, Jest, Selenium
Sep 2019 - Present

Front End Engineer Ii

Scottsdale, AZ, US

  • Engineering: Contributed to the development of an internal data management tool for the company's sales engineers.
  • Front-End: Designed application UIs using advanced React technologies like Redux-Saga, styled-components, and Hooks. Set up a TDD environment with Jest, React Testing Library, and Cypress.
  • Email Reporting: Specialized in crafting responsive email templates for clients using the MJML framework.
  • Tech: React/Redux/Redux-Saga/Hooks, Node.js/Express, Jest/react-testing-library/Cypress, MJML
Apr 2018 - Jun 2019

Coding Instructor

New York, NY, US

  • Community: Engaged in part-time community activities outside of Intel, leveraging post-bootcamp success to enhance public speaking skills.
  • Workshop Host: Conducted weekly sessions to teach fundamental programming and provided guidance on entering the tech industry.
Aug 2017 - Sep 2018

Systems Software Engineer

Santa Clara, California, US

  • UI Programming: Contracted to develop retail applications integrating IoT solutions, similar to Amazon Go.
  • Data Visualization: Initially developed D3.js-based visualizations to illustrate RFID tag and sensor interactions. Presented a proof-of-concept at the 2016 National Retail Federation, leading to a full contract.
  • RFID Management Console: Post-extension (contract), focused on upgrading an AngularJS app from legacy to version 2 and migrating from Semantic to Bootstrap frameworks for an internal RFID-sensor management tool for.
  • Tech: Angular, TypeScript, Bootstrap, D3.js, Karma/Jasmine, SQL, AWS
Dec 2016 - Apr 2018

Senior Research Associate

Scottsdale, Arizona, US

  • Last job as a chemist. End of my Chemistry career.
  • Worked as an analytical chemist at C4 Laboratories: a botanical testing facility specializing in cannabis medicine.
  • Provided scientific-based results to help ensure the purity and safety of cannabis medicine for the patients of Arizona.
  • Collaborated with a dedicated staff of doctors and scientists to support the clients with most up-to-date research information and test results.
Jun 2015 - Apr 2016

Assistant Restaurant Manager

  • Part-time weekend work to support the family business.
  • Managed all areas of operations during scheduled shifts -- including interviewing, hiring, and training personnel to work in a restaurant environment. Also worked as a cashier greeting customers, receiving orders, and.
Jul 2012 - May 2015

Research Consultant

Tempe, AZ, US

  • Worked on enhancing the thermal stability of digital PCR enzyme reagents for the environmental sample processor (bioanalytical module), which will be mounted to an autonomous underwater vehicle (provided by Monterey.
  • Extracted, purified, and cloned crude marine environmental samples provided by Monterey Bay Aquarium Research Institute. Utilized qPCR to determine the presence of nitrogen-fixing bacteria.
  • Created urethane casting for an underwater electronic device that blinks in response to environmental stimuli. The casting was designed to withstand ocean pressure 500 meters below sea level.
Jun 2013 - Apr 2014

English/Korean Interpreter And Translator

Nolgong
  • Overseas freelance project while visiting Korea.
  • Worked on the project ā€˜Live Brilliant Hyundai Global Youth Marketing Camp’ -- helping 81 students from across the globe communicate with one another.
  • Guided students to understand company principles through interactive games.
Feb 2013 - May 2013

Research Biomaterials Engineer

Daejeon, KR

  • Studied the visible-light-induced inhibition of beta-amyloid aggregation (commonly known to be associated with Alzheimer’s disease) using a photochemical biomaterial known as Rose Bengal.
  • Used Circular Dichroism to determine the secondary structure of the amyloid protein. Monitored transition from the non-amyloidogenic unordered/alpha-helix conformation of beta-amyloid small monomers to the.
  • Mastered preparation of amyloid-beta fibrils and oligomers. Fully grown amyloid proteins were inserted into PC12 cells (from the rat adrenal medulla), then performed MTT assays to determine cytotoxicity.
  • Learned to operate material analysis equipment, such as Atomic Force Microscopy (AFM). Two-dimensional images of single-touch AFM measurements of beta-amyloid oligomers were taken multiple times to monitor the growth.
Jan 2011 - Jun 2012

Research Biochemist

Daejeon, KR

  • Determined the structure of the post-translational protein, known as ubiquitin, and its related functions (signaling DNA replication repair).
  • Labeled Ubiquitin with 13C/15N isotopes, then inserted into E. coli to be cultured and expressed in large volumes. Ion Exchange Column Chromatography was used to purify expressed ubiquitin.
  • Analyzed purified ubiquitin with 600 MHz liquid-state Nuclear Magnetic Resonance Spectrometer.
Jul 2010 - Dec 2010
3 education records

Sean Jun education

Bachelor Of Science (B.S.), Biochemistry

Uc Santa Barbara

Master Of Science (M.S.), Materials Science And Engineering

Korea Advanced Institute Of Science And Technology

Full Stack Javascript Development

Thinkful
FAQ

Frequently asked questions about Sean Jun

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

What company does Sean Jun work for?

Sean Jun works for American Express.

What is Sean Jun's role at American Express?

Sean Jun is listed as Full Stack Engineer at American Express.

What is Sean Jun's email address?

AeroLeads has found 1 work email signal at @americanexpress.com for Sean Jun at American Express.

Where is Sean Jun based?

Sean Jun is based in Greater Phoenix Area, United States, United States while working with American Express.

What companies has Sean Jun worked for?

Sean Jun has worked for American Express, Digital Air Strike, Thinkful, Intel Corporation, and C4 Laboratories.

How can I contact Sean Jun?

You can use AeroLeads to view verified contact signals for Sean Jun at American Express, including work email, phone, and LinkedIn data when available.

What schools did Sean Jun attend?

Sean Jun holds Bachelor Of Science (B.S.), Biochemistry from Uc Santa Barbara.

What skills is Sean Jun known for?

Sean Jun is listed with skills including Javascript, React.Js, Node.Js, Css, Html, Express.Js, Jquery, and Mongodb.

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