Jessie Brown
Baltimore,MD
Summary
Analytical, collaborative, and progressive professional with over 20 years of experience in developing and implementing transformative automations and programming solutions. Delivers the highest quality code and sought after by clients for meeting exact specifications. Provides easy-to-understand documentation using Sphinx, Pydocs, PowerPoint presentations, and formal and informal notes. Skilled at conveying technical concepts clearly and concisely to audiences at various levels, from highly technical people to business leaders. Renowned for fostering an enjoyable work environment and celebrated for a legacy of extensive automation. Passionate about ensuring data quality and using advanced analytical, statistical, and machine learning techniques to solve business problems and generate actionable insights. Expert in building systems for efficient data processing, and modeling data to drive analytics, with strong communication skills essential for collaboration with business, engineering, and data science teams to promote a culture of learning. Collaborate closely with data scientists, consumer specialists, engineers, strategy partners, and content teams to deliver insights through statistical analyses and modeling that inform key business decisions.
Overview
26
26
years of professional experience
Work History
Python Software Engineer
Passion projects
06.2025 - Current
- Create an app that takes a baking recipe, looks up the user’s altitude, and converts it for baking in high altitude.
- Created a class called RecipeConverter that does the following:
- Uses Python’s Selenium library to query the website https://whatismyelevation.com/ to get the user’s altitude.
- Adjusts ingredient amounts to ensure the recipe bakes properly.
- Adjusts the baking temperature.
- Adjusts the baking time.
- Created a Python unittest program that validates the measurement changes.
Software Engineer & Data Scientist
Mantech International
Hanover, MD
12.2024 - 04.2025
- Created a Bamboo CI/CD job that conducted daily searches, formatted the results, and included the links to the files containing bad data, so that developers could quickly and easily identify sources of problems.
- Create software to sift through log files and look for patterns indicating system-wide performance issues.
- Investigated the difference between 'bad' and 'good' data. Discovered 2 features that the bad data had that the good data didn’t.
- Authored a Python library that interacts with Elasticsearch to look for and return bad data.
Senior Software Engineer
Elevi Associates, LLC
Linthicum, MD
06.2022 - 09.2024
- Automated web application testing.
- Created Python library that extended Python Selenium Library and improved versatility through Object-Oriented design.
- Solution could check and select values from dropdown menus, download file and verify contents, click elements, confirm webpage loaded correctly, fill out forms, validate results, and find elements without needing 'By' types.
- Established SQLite3 database to manage webpage elements and allow any referencing program to automatically use updated search information.
- Each element had name, search term, and search method, and if elements changed, only database needed updating.
- Improved API library by removing hardcoded paths and storing them in SQLite3 database with unique names that enabled simplified maintenance.
Data Scientist
Everwatch Solutions
10.2020 - 06.2022
- Collected two months of observations and calculated mean, standard deviation, and z-scores for training dataset.
- Tested moving averages (7, 14, and 21 days) to determine 7-day average was optimal for comparison.
- Wrote Python script to compare documents before/after software upgrade, determining statistically significant differences.
- Documented procedure in README file with set of presentation slides.
- Developed metric to identify significant changes in data volume requiring further investigation.
- Recommended use of 7-day average for alerts on any 10% increase/decrease in data volume.
- Assessed specific analytic for unique data and created script that identified nearly 3Gb of unique data before reaching 50% completion.
Software Engineer
Clear Ridge Defense
09.2018 - 10.2020
- Enhanced software for monitoring health and performance of computer hardware in multiple server farms, delivering detailed command outputs for each device.
- Discovered innovative ways to improve efficiency and effectiveness of software.
- Developed SQLite3 database to store user comments and integrated into HTML pages, allowing team to track devices in progress and created Python script prompting users for device name.
- Devised testing environment.
- Stored all devices and commands in SQLite3 database, simplifying maintenance compared to flat files.
- Analyzed code and developed new efficient programs using Perl due to lack of Python support of SSH and Expect commands, and utilized Perl modular programming, threading, Expect scripts, and parameter files for easier updates and maintenance.
- Developed Python script that added list of devices for new site and commands to database while updating necessary parameter files with new site name.
- Authored Object-Oriented Python script to remove devices from database and parameter files.
- Created Python class to parse unique health and performance outputs in HTML pages from multiple vendors and script using class, alongside JSON file for settings, HTML stylesheet, and PHP file.
Software Engineer
Mahlet Consulting
04.2018 - 07.2018
- Developed C programs to efficiently filter specific IP addresses from 100Gb signals.
- Researched hashing algorithms and Bloom filters to find fastest method, presenting performance differences to hardware developers to assist with choosing best option.
- Provided testing software demonstrates effectiveness of filtering algorithms.
Software Engineer
United States Department of Defense
08.2000 - 04.2018
- Designed software for broad reusability and included comprehensive documentation for easy future maintenance.
- Conducted detailed analysis, delivering crucial insights.
- Improved Python software suite using Object-Oriented Design and web scraping to rank data sets, helping analysts prioritize workflow.
- Developed PERL scripts to automate manual processes.
- Utilized data mining to determine file priority.
- Collaborated with team on brainstorming to identify process improvements and improve efficiency.
- Mentored and coached junior analysts and teammates.
- Created SAS programs to monitor data ingestion.
- Alerted analysts when data submissions were too high/low, enabling quick adjustments.
- Developed SAS programs notifying data monitoring team of system issues and enhancing operational reliability.
Education
Professional Certificate - AI and Machine Learning
PURDUE UNIVERSITY ONLINE
02-2026
Master of Arts - Mathematics
University of Kansas
Lawrence05-1999
Bachelor of Science - Mathematics
University of Kansas
Lawrence05-1996
Skills
- Python
- Selenium
- AWS
- SQL
Timeline
Python Software Engineer
Passion projects
06.2025 - Current
Software Engineer & Data Scientist
Mantech International
12.2024 - 04.2025
Senior Software Engineer
Elevi Associates, LLC
06.2022 - 09.2024
Data Scientist
Everwatch Solutions
10.2020 - 06.2022
Software Engineer
Clear Ridge Defense
09.2018 - 10.2020
Software Engineer
Mahlet Consulting
04.2018 - 07.2018
Software Engineer
United States Department of Defense
08.2000 - 04.2018
Professional Certificate - AI and Machine Learning
PURDUE UNIVERSITY ONLINE
Master of Arts - Mathematics
University of Kansas
Bachelor of Science - Mathematics
University of Kansas