Staff Software Engineer
Current
Nov 2019 - Present
AeroLeads people directory · profile
Chastine Grace De Leon Email & Phone Number
Staff Software Engineer
at
Slack
1 work email found
@slack-corp.com
LinkedIn matched
✓ Verified August 2026
4 data sources
Profile completeness 100%
Who is Chastine Grace De Leon? Overview
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Quick answer
Chastine Grace De Leon is listed as Staff Software Engineer at Slack, based in San Mateo, California, United States. AeroLeads shows a work email signal at slack-corp.com and a matched LinkedIn profile for Chastine Grace De Leon.
Chastine Grace De Leon previously worked as Staff Software Engineer at Pandora and Senior Software Engineer at Pandora. Chastine Grace De Leon holds Master Of Information Systems from University Of The Philippines.
Company email context
Email format at Slack
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{first_initial}{last}@slack-corp.com
86% confidence
AeroLeads found 1 current-domain work email signal for Chastine Grace De Leon. Compare company email patterns before reaching out.
Profile bio
About Chastine Grace De Leon
Java backend software engineer. Technologies I work with include Spring, MongoDB, MySQL, and RESTful web services. I love writing clean and readable code that's highly maintainable. I bake a mean chocolate cake too.
Listed skills include Hibernate, Java, Spring, Agile Methodologies, and 16 others.
Current workplace
Chastine Grace De Leon's current company
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6 roles · 11 years
Chastine Grace De Leon work experience
A career timeline built from the work history available for this profile.
Staff Software Engineer
Apr 2019 - Oct 2019
Senior Software Engineer
Mar 2017 - Apr 2019
Senior Software Engineer
Makeup Depot
- Implemented Spring-Data-REST and Lombok to reduce overall codebase by ~30% for internal inventory system for an online beauty and skincare purveyor.- Architected backend web service that allows owners to manage inventory, orders, pricing and cash flow that combine multiple currencies (USD and Php).- Enabled HATEOAS and painless API documentation using Swagger to facilitate smoother client integration.
2016 - Mar 2017
Senior Software Engineer
Adchemy (Acquired By Walmartlabs)
- Developed a feed management gateway service using Java, Spring, MongoDB and RabbitMQ for uploading over 3 million unique products across 20 categories and 6 clients to Google Merchant Center.- Optimized software development time by > 15% through creating 10+ RESTful API methods to supplement existing Java and Spring backend modules as part of service-oriented architecture redesign.- Maintained 100% uptime of Google AdWords and Bing Ads internal publishing services with Java, ensuring changes to Required Minimum Functionalities (RMFs) were met and third-party API issues were avoided.- Led team of 7 engineers through scrum agile development, with 2 week sprints and Git for version control.- Followed test driven development (TDD), achieving ~85% code coverage writing 300+ unit tests with JUnit.- Recognized in < 1 year with “Play to Win as a Team” Living Our Values award (top 4% of the company) shortly after promotion to Senior Software Engineer.
Jul 2011 - May 2014
Software Engineer 3
- Engineered using Java, Spring and JSF efficient feature requests for 6 rating, pricing and billing systems which greatly increased customer satisfaction and optimized billable hours for outside contractors by over 10%.- Saved the company thousands of dollars by proposing and implementing the use of open-source Java Native Access to extract critical data from a third-party mileage application, which was otherwise unavailable.- Streamlined user invoicing process by 15 - 20% through constructing 2 major pages (from UI to backend) that merged the rates and bills procedures with Java, Spring, and DB2.- Proactively collaborated with users, QA engineers, and other stakeholders during development lifecycle, while adhering to strict guidelines for documentation and processes, reducing turnaround time by ~20%.
Jan 2008 - Jun 2011
2 education records
Chastine Grace De Leon education
Master Of Information Systems
University Of The Philippines
Bachelor In Business Administration, Information Technology
Southville Foreign University
FAQ
Frequently asked questions about Chastine Grace De Leon
Quick answers generated from the profile data available on this page.
What company does Chastine Grace De Leon work for?
Chastine Grace De Leon works for Slack.
What is Chastine Grace De Leon's role at Slack?
Chastine Grace De Leon is listed as Staff Software Engineer at Slack.
What is Chastine Grace De Leon's email address?
AeroLeads has found 1 work email signal at @slack-corp.com for Chastine Grace De Leon at Slack.
Where is Chastine Grace De Leon based?
Chastine Grace De Leon is based in San Mateo, California, United States while working with Slack.
What companies has Chastine Grace De Leon worked for?
Chastine Grace De Leon has worked for Slack, Pandora, Makeup Depot, Adchemy (Acquired By Walmartlabs), and J.B. Hunt Transport (Remote).
How can I contact Chastine Grace De Leon?
You can use AeroLeads to view verified contact signals for Chastine Grace De Leon at Slack, including work email, phone, and LinkedIn data when available.
What schools did Chastine Grace De Leon attend?
Chastine Grace De Leon holds Master Of Information Systems from University Of The Philippines.
What skills is Chastine Grace De Leon known for?
Chastine Grace De Leon is listed with skills including Hibernate, Java, Spring, Agile Methodologies, Mysql, Tomcat, Spring Framework, and Java Enterprise Edition.
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