My Portfolio

Hello!

Welcome to my portfolio dedicated towards my career & academic ‘driven background.

My name is Daniel Lee and I am a ...

Software Engineer w/ 10+ years of professional enterprise-level experience in building and testing innovative solutions.
Experienced “Jack-of-all-trades” [J♤] Technical Freelancer involved in various client projects.
United States National Guard veteran with 9 years of service.
University graduate with a Bachelor of Science in Engineering (BSE) w/ a Computer Engineering major & Computer Science minor.

Personal Profile

Learn more about my background and technical proficiencies.
Refer to the section below.

Nickname:

Danny

Alias:

X-Factor

Classification #1:

Software Engineer

Classification #2:

Technical Freelancer

Location:

Atlanta, GA - USA

Nationality:

Korean American

Institution:

University of Iowa

Institution Year:

2005-2009

Institution Degree:

BSE; Elect/ Comp Eng

Institution Major:

Comp Engineering

Institution Minor:

Comp Science

Certification

OCP Java SE 6.
Effective 12/14/2011.

Language Proficiency

English

Korean

Technical Skills Proficiency

Front-End Programming

HTML

CSS

Back-End Programming

Java

Python

C++

PHP

SQL

Microsoft Applications

Adobe Applications

Miscellaneous

Employment History

Learn more about my professional work contributions.
Refer to the section below.

Tech Lead/ DevOps Engineer

June 2024 - Present

Leading technical architecture and engineering strategy for a Pi Network eCommerce platform designed to scale to 2M+ users, emphasizing reliability, automation, and zero manual fulfillment.
Designing and maintaining CI/CD pipelines, enabling automated builds, tests, and deployments across test, staging, and production environments.
Collaborating directly with product stakeholders and Pi Core Team requirements to align platform behavior with SDK constraints and platform policies.
Mentor contributors and reviewed pull requests, enforcing modular, scoped changes and maintaining code quality standards across the team.

IT & Media Director

June 2023 - Present

Provide comprehensive L2+ IT support/ troubleshooting across the entire organization ensuring smooth operations and user satisfaction.
Administer and optimize church management tools and network infrastructure; enhancing collaboration and efficiency across all departments.
Design and implement process automations that streamline workflows, reduce manual effort, and improve organizational efficiency.
Lead creative media initiatives, including graphic design, event publicity, and communications campaigns to engage congregants and promote church activities.

Software Engineer II

May 2012 - September 2022

Served as a Full Stack Software Engineer working within both Agile and Waterfall development methodologies in a collaborative, team-driven environment.
Contributed to the development and maintenance of group insurance systems across on-premises and cloud-based architectures.
Supported time-critical releases by taking on multiple responsibilities, including development and quality assurance, while leveraging CI/CD pipelines to improve delivery speed and reliability.

Java Developer

January 2011 - April 2012

Worked as a Java Developer with supporting front-end technologies in an Agile Scrum team environment.
Analyzed, designed, developed, and supported quality software products in the mAnalyzed, designed, developed, and supported digital and print fulfillment systems within the magazine subscription domain.
Diagnosed and resolved system defects through testing and debugging, and produced clear technical documentation to communicate subsystem changes and improvements.

Web Administrator

March 2008 - December 2010

Served as a Front-End Developer and Web Administrator in a multi-disciplinary startup environment.
Led the website design, setup, and ongoing maintenance for a social networking platform connecting college students with employers through job shadowing and mentorship opportunities.
Worked directly with the CEO as part of a co-founder partnership, contributing to product direction, design decisions, and operational execution.

Student Clerk/ Programming Assistant

February 2006 - September 2007

Worked as a Java/J2EE Developer, contributing independently while providing weekly status updates on progress and deliverables.
Assisted with backend infrastructure and SQL integration for the Iowa Retinal Webscreen Telediagnosis project (IDX-DR), supporting clinical research and diagnostic workflows.
Worked directly under a supervising MD, PhD, Professor of Ophthalmology and Visual Sciences, contributing to a regulated healthcare research environment.

Administrator/ Logistical Specialist

May 2001 - June 2009

Served as an HQ Administrator, coordinating and tracking maintenance status for automated vehicles, electrical systems, and military equipment.
Utilized secure military systems to manage confidential data, generate, and modify work orders supporting unit operations and readiness.
Provided software and hardware troubleshooting support to commissioned officers, earning a reputation as a reliable and effective problem solver.

Contractor History

Learn more about my technical freelance work contributions.
Refer to the section below.

Remote Technical Freelancer

August 2022 - Present

Built a strong reputation by maintaining a perfect 5★ rating with high client satisfaction and 100% job success rate - earned the Top Rated title and currently representing top 10% of talent on the platform.
Continue to provide a proficient level of service with or without requirements - including design/ development/ configuration/ troubleshooting.

Remote Foundation vWorker Freelancer

June 2010 - Present

Accomplished a steady reputation as an initial technical freelancer; building upon the vWorker foundation.
Worked on various technical projects for domestic and international clients.
Maintained high client satisfaction evident from a perfect 5★ rating and favorable feedback.

Remote Tester

November 2022 - Present

Completed a multitude of test case cycles within the allotted time and with high bug reporting accuracy - earned Diamond tier ranking and currently representing top 10% of testers on the platform.
Continue to provide accurate and detailed bug reports in a consistent manner; invited to participate in additional test cycles as QA support for various clients.

Contractor Services

Learn more about my technical capabilities and services.
Refer to the section below.

Coding/ Scripting

Documentation

Testing/ Validate

Troubleshooting

Configuration

Graphic Design

Client Testimonials

Learn more about the quality of my deliverables through testimonials.
Refer to the section below.

I cant say enough good things about Danny. I have worked with many coders since I started web development projects in 1998. Danny is hands down the best of any I have worked with. He has gone above and beyond expectations. He is diligent, hard working, smart, responsive, and generally just a good man, who I trust. If you are trying to narrow down b/ coders, save yourself some time and hire Danny now. If you have questions for me about him, please feel free to message me and I can answer questions. I will 100% be hiring him for more future projects.
_{[Redesigned brennamangroup.com in Placester]
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I am so thrilled with the work that Daniel has done for me! His coding skills are top-notch and he was able to understand my project requirements and bring them to life in a way that exceeded all of my expectations. He was very responsive and communicative throughout the entire process, making sure that I was satisfied with his work every step of the way. I would highly recommend Daniel to anyone looking for a talented and professional coder - truly went above and beyond to make sure that my project was a success. Thank you so much for your hard work and dedication Daniel!
_{[Java byte code analysis and programming]
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Awesome! Out-of-the-box thinker.
_{[Web and datascraping binance.com]
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Daniel was very responsive and turned in my task in a very timely manner. He is very good at what he does and I'm glad I was able to find him on Upwork! Thanks a lot for the data, Daniel!
_{[Analyzed and developed restaurant directory]
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Daniel did great on our excel template we needed. We will definitely contact him back for future excel needs!
_{[Developed work order template system for Southern Solutions Landscaping & Grading LLC]
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Danny -- does a great job. He has handled two sites for me now. Very good level of service. If you get a chance to use him, you will be happy.
_{[Analyzed and built Charleston real estate website using WordPress]
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He did a great job for me, setting up a site that was bank-ended by Word Press. I would highly recommend him. I will use him again for sure. Worked really hard to make sure I was happy with the product.
_{[Setup and complete coding in WordPress driven website]
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Daniel is very patient and helps you organize your project. I love the professionalism.
_{[Redesigned and built parklyfe.com using Wix]
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Daniel's meticulous approach and keen eye for detail helped us uncover critical issues that we might have otherwise missed. His thorough testing ensured that our app was robust and user-friendly, significantly improving the overall quality of the final product.
_{[Exploratory testing and test case validation for Handbid app]
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Daniel's dedication and proactive communication throughout the testing process made a substantial impact on our project's success. I highly recommend Daniel for any project requiring top-notch testing expertise and a commitment to excellence."
_{[Exploratory testing and test case validation for Sidekick Health app]
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Thanks very much for quick and great job! Was a pleasure to work with you.
_{[Applied configuration to automate voting without user session persistence]
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Excellent coder ! Sonykidd tackled my problem in a very professional way. He supported me all the way till the problem was completely solved. His attitude and correspondence was one of the best that I have experienced. If you want a coder that understands your problem in the first go, is ready to stand by you till the project is complete and sends prompt communication, then look no further!
_{[Recovered and reset admin login for Joomla based web sites hosted on GoDaddy]
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Great worker, went above and beyond to finish the project on-time. He was constantly in communication and has been a true pleasure to work with. Thanks for going above and beyond. I will definitely hire you again.
_{[Installed and configured IonCube on dedicated Plesk server]
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This guy is really really good! Hire him right now you won't be disappointed.
_{[Edited and proofread addresses for multiple pages of coupon documents]
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Many thanks for accomplishing this 'rush job' as promised in just a couple of hours exactly the way described. Well done...
_{[Built a document library of graphics and icons]
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I am very pleased with the flyer and business cards that Daniel has design for me. Great work!!!! Keep doing your thang!!
_{[Design and built ParkLyfe business card and flyer]
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Appreciate your insights and quick turnaround.
_{[Resolved and provide solution for screen scraping binance.com]
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Super fast fix; and priced lower than my offer!
_{[Resolved LinkedIn hyperlink reference issue for American/ European Metaverse Awards]
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Danny continues to impress with his promptness and willingness to go the extra mile. One of the best coders I have worked with on RAC in 5 years of using the service. Will use again.
_{[Fixed real estate blog issues in WordPress]
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Took lots of initiative, was very professional and skilled!! One of the best freelancers I've ever worked with.
_{[Enhanced logo design and resolution for Likewise12]
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Great guy, excellent job.
_{[Customized a set of banners for a UK church website]
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Project Portfolio

Learn more about my collection of completed/ ongoing projects.
Refer to the section below.

Map of Pi App

Leading development and implementation of a Pi Network eCommerce app connecting buyers and sellers; winner of the 2024 Pi eCommerce Hackathon.
Built with the MERN tech stack, the app features geospatial functionality, including an interactive map to display seller locations, and integrates with the Pi SDK for seamless sign-in and transactions via the Pi Browser.
Gaining widespread popularity with the Pi Network community; more than 2 million users and 150K shops have been registered, showcasing the app's growing adoption as a key player for Pi commerce.

Sports Apparel Website for ParkLyfe

Built a sports apparel site using Wix platform; focusing on brand identity, UX, and eCommerce performance.
Configured CMS, product catalog, email marketing, and SEO to support scalable store growth.
Managed external marketplace platforms to expand sales reach and maintain consistent branding; assisted with social media presence and ongoing optimization using real-time analytics across web, marketplace, and social marketing channels.

Real-Estate Website for The Brennaman Group

Redesigned a WordPress-based real estate site using Placester, leveraging Miro for collaborative planning and incorporating client feedback with custom JavaScript enhancements.
Configured the CMS, implemented email marketing, and developed an SEO strategy.
Continuously provided feedback and optimization recommendations based on real-time site analytics and performance metrics.

Baki zToken Triangular Arbitrage Bot

Designed and implemented a lightweight, efficient listener bot for the Avalanche C-Chain blockchain, enabling interaction with smart contracts to support Baki zToken triangular arbitrage analysis.
Implemented real-time detection and analysis of specific events to evaluate the profitability of trades.
Integrated functionality to log and display blockchain events and outputs directly in the terminal.

Python | Terminal | Github Actions | Google Sheets

Landscaping & Grading Work Order Template

Developed a dynamic Excel template to streamline industrial work orders for managing landscaping and grading projects; capable for English to Spanish translation.
Built a custom ribbon and enhanced the user experience with functional GUI elements for work order features.
Created tables to manage project and equipment/ tool data, establishing relationships for data correlation.

Restaurant Directory

Leveraged the Yelp Fusion API to data scrape and retrieve restaurant business data in JSON format.
Implemented mouse and keyboard automation for API calls and data collection, streamlining the process and eliminating repetitive manual tasks.
Designed and structured a consolidated database table using Power Query to organize restaurant business data efficiently on an Excel spreadsheet template.

Microsoft Excel | Power Query | Rest API | AMC MurGee

Contact Me

Feel free to use the contact form below to reach out.
I will be sure to respond back in a timely manner.

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