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Charles S.

@guamer

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5.0
3
2.5
2.5
100%

Senior Web | Data | DevOps | AI | Blockchain

$50 USD / Hour
Flag of
New Zealand (1:39 AM)
Joined on November 21, 2023
$50 USD / Hour
SQL - Data Analytics - Python - Power BI - React - Angular - Agile Methodologies Node.js - C# - Java - PHP - Django - Shopify - WordPress Results-oriented full-stack developer with a strong foundation in data analytics and blockchain technology. Skilled in Python, JavaScript, React, Node.js, Solana, Ethereum, etc. Passionate about building innovative web applications and blockchain solutions that deliver value to businesses and users. Senior data manager with a passion for implementing and maintaining data infrastructure, workflows and leveraging data insights to build the business, reduce costs, improve health outcomes or advance social justice. I have a Master's in Business Administration and an Engineering degree with a focus on human centered design, which enables me to create innovative and user-friendly solutions for complex data challenges. Here's what I bring to the table: Languages: - JavaScript - Python - Java - PHP - Solidity, Rust - C/C++, C# Frameworks: - NodeJS/NextJS/NestJS - Django/Flask - Spring Boot - Laravel/Symfony/WordPress - Hardhat/Foundry - ASP.NET Databases: - MongoDB - PostgreSQL - MySQL - GraphQL
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5.0 · 3 Reviews
Reviews
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Charles has been a great professional, working within time and budget. He constantly communicates with me and make sure that the status is clear. Great job!
Alan T.
@goshat
Flag of
Singapore, Singapore
1 month ago
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M
Assisted us with debugging and getting our software running Thanks [18 November, 2024] Helped us debug and successfully get our software running. Thanks
Matthew C.
@matthewc99
Flag of
Beresfield, Australia
1 month ago
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Experience
Full stack Developer + Blockchain Developer
May, 2016 - Present
8 years, 7 months
Self Employed
May, 2016 - Present
8 years, 7 months
● Developed a social media mobile app where users can tip the content creator using crypto. Built a cryptographically secure Node.js library to request QR codes granting access to high-security buildings. ● Researched and developed a proof-of-concept to use NFT images as background for Apple Watch. ● Developed and published a mobile app called Captain's Numbers. ● Collaborated with back-end developers and web designers to improve usability.
May, 2016 - Present
8 years, 7 months
Senior Applications Developer & Data Consultant
Jan, 2012 - Present
12 years, 11 months
Blue Cross and Blue Shield
Jan, 2012 - Present
12 years, 11 months
● Developer for enterprise-wide Account Management web platform as DBA. ● Design reports to help leaders assess the state of the business. (Tableau, Telerik, Dynamic Excel) ● Implement new work processes and continuous process improvements, tracking through TFS/Jira/Git Reporting Analyst for Sales Technology Team (2007-2012) ● Automated regular reporting through dynamic interfaces (Cognos, PowerBI, Access) ● Tester for Broker Central and UAT lead for the rollout
Jan, 2012 - Present
12 years, 11 months
Graduate Researcher
Jan, 2011 - Dec, 2014
3 years, 11 months
Institute for Health Equity and Social Justice Research
Jan, 2011 - Dec, 2014
3 years, 11 months
Graduate Fellow for Project LAUNCH - collaborating with BPHC, MDPH and community clinics at BMC, Codman Square, Dimock, and Martha Eliot Health Center.
Jan, 2011 - Dec, 2014
3 years, 11 months
Education
Northeastern University - Graduate School of Business Administration
2008 - 2012
4 years
Master of Business Administration
Flag of
United States
2008 - 2012
4 years
University of Washington
1998 - 2002
4 years
Bachelor of Engineering
Flag of
United States
1998 - 2002
4 years
Qualifications
SQL (Advanced)
2024
HackerRank
https://www.hackerrank.com/certificates/iframe/674aa5c4d0e7
2024
Frontend (React)
2024
HackerRank
https://www.hackerrank.com/certificates/iframe/3fdc650f220c
2024
Certifications
US English - Level 3
US English
Verifications
On time
100%
On budget
100%
Accept rate
100%
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