George Tsimis Email & Phone Number

New York, Ny, Us

New York City Metropolitan Area

Technologies Used: AWS, PostgreSQL, Java, Spring Framework, Node.js, JavaScript, TypeScript, React.js, Next.js, Tailwind CSS, MantineExternal APIs Used: Twilio, Intercom, Plaid• Project lead to enhance phone system (Twilio API), during Q2 & Q3 '23, from making one-time payments to also saving bank accounts and configuring autopay. Added internal logging, improved error handling, and significantly cleaned up code base. Reduced borrower wait time, when calling to process payment, from 1hr+ to zero. Monthly payments processed/revenue collected averages 3K+/$5M+• Project lead for building nightly remittance process on AWS (S3, Lambda, SQS, SNS, DynamoDB), during Q4 '23 & Q1 '24, greatly enhancing efficiency & security, compared to previous process, by being hosted on the cloud. Added logging so internal team can track process. Automated task of informing borrowers of payment status once processed, eliminating need to call borrowers when payment fails•Maintain/update user-facing app, which utilizes Plaid API for adding bank accounts securely to app (Java, Spring, TypeScript, React.js, Jest) and has 19K+ active users with growing adoption, allowing borrowers to manage aspects related to their loan. Monthly payments processed/revenue collected averages 11K+/$20M+• Maintain/update backend API (Java, Spring) for user-facing/internal apps and micro-services (Java, Spring, Node.js) handling the nightly statement generation process for borrowers. Micro-services assessed every loan (25K+) each night to determine if a borrower needed a late fee and/or monthly statement PDF created. Participated in a weekly rotational on-call for micro-services• Added feature that allows admins to configure autopay on behalf of borrowers in internal app (JavaScript, TypeScript, React.js, Next.js, Tailwind CSS) for loans with various statuses (i.e. current, bankruptcy, commercial), requiring different input parameters and backend logic (Java, Spring, PostgreSQL) depending on loan status

New York, New York, United States

Technologies Used: PostgreSQL, Node.js, GraphQL, JavaScript, TypeScript, React.js• Assisted in rebuilding Laboratory Information Management System in 3 months from ground up, allowing scientists to track experiments done on blood samples related to Covid / Prostate Cancer testing. Modern technologies, more robust error handling / testing, and better software engineering principles resulted in improved performance, scalability, and user experience for the application• Re-architected database tables and designed new associations between them, resulting in the elimination of duplicate / unnecessary tables and the existence of the same data point in multiple tables.• Added over 60% of frontend and backend unit tests assuring that existing code was not affected when adding new features

New York, New York

• Ensured accuracy, consistency, and analytical value of a portfolio of 300+ public and private business entities• Liaised with senior analysts to resolve queries about financial data used in the ratings process• Managed and supported an offshore team that performed data entry, by analyzing their work, making corrections, and providing feedback

Flushing, New York

Courses and Semesters:Pre-Calculus (Fall '16, Spring '17, Fall '17)Calculus I (Fall '17)

Brooklyn, New York

Courses and Semesters:Elementary Algebra (Fall '16)College Algebra & Trig. (Fall '16, Fall '17)Pre-Calculus (Spring '17)

Software Engineer

Full Stack Software Engineering curriculum emphasizing Ruby on Rails, SQL, JavaScript, React.js, Data Structures & Algorithms, and pair.

Master'S Degree, Mathematics

Oral Exam proving knowledge mastery completed on Theory of the Integral and Numerical Analysis coursework

Bachelor Of Arts - Ba, Accounting

Bachelor Of Arts - Ba, Mathematics