Antonios-Stefanos Tormpantonis
BSc Physics, interested in Data Science and Programming, as well as automation of repeatable tasks, mainly through Python. Recently, I have explored machine learning and neural networks. If you have an employment offer, please contact me at the following e-mail address.
âī¸ antonistorb@yahoo.comQualifications
- âī¸ 2 Years experience in data driven environments.
- âī¸ 1.5 Years Purchase to Pay experience.
- âī¸ 1.5 Years experience with U.S. Tax requirements, related forms and withholding tax.
- âī¸ Intermediate knowledge of Python, Basics of HTML, CSS, JS and SQL.
Skills
Work History
05/2019 - 10/2020
- Main point of contact for the Vendor Master Data sub-process for North America.
- Vendor data maintenance for North America and EMEA.
- Ensuring vendor data remained accurate and compliant with region specific and company regulations.
- Handling of vendor account specific requests through a queue system.
- 2nd Tier of escalation for the Vendor Master Data sub-process.
- Testing and quality control on new tools, processes, as well as updates to existing ones.
- Documetation correction and updates as required.
- Compliance reporting and auditing on regular intervals.
- Report generation with specific information when requested.
- Puerto Rican merchant certificate and withholding exemption document validation and handling.
- Employee expense accounts maintenance in SAP.
- Bank data maintenance in SAP.
- Validation and compliance control for Customer Master Data sub-process.
- Troubleshooting payment returns/rejections, and implementing solutions to related issues.
- Knowledge transfer and training new team members and affiliates, including recorded presentations.
01/2018 - 10/2018
- Protocol number assignment to Military Documents.
- Missing documents recovery by following Protocol.
- Incoming and outgoing Military Mail handling.
- Special handling of top secret and confidential documents.
- Military service duty schedule planning.
- Issuing of Military documents as required (medical referrals, leave of absence documents, military personnel transportation tickets, draft documents).
- Daily report generation on the status of the unit and its members.
- Personnel database management (Microsoft Access environment).
- Military document archiving.
- Communications (electronic mail and phone calls).
09/2012 - 06/2013
- Knowledge transfer in preparation for the national university entry exams.
Education
09/2010 - 07/2017
- Graduation grade of 7.23/10.
- Knowledge acquisition in advanced Mathematics, Data Analysis and multiple fields of Physics.
- Main field in Nuclear Physics and Elementary Particles.
- Exceptional performance in laboratory courses.
Languages
- đŦđˇ Greek: Native. High everyday usage, high confidence.
- đŦđ§ English: IELTS General Training (01/2019), Overall Score: 8/9 (C1 level). High everyday usage, high confidence.
- đŠđĒ German: Zertifikat B2 (05/2009), Overall Score: 80.5/100. Very low circumstantial usage, low confidence.
Accomplishments
đ¤ IsItBackYet
A discord bot that checks the availability of a website and informs the users once it is available.
Options are specified in a configuration file, as well as with bot commands by the owner.
đ Home Alert
An application that allows users to use their webcam as a security surveilance camera.
Once movement is detected, the recording starts and the recorded video is uploaded to a specified Discord channel.
All the components of this application are customizable through a configuration file, as well as through Discord bot commands.
đ Reddit SPD
A tool allowing Reddit users to create an offline archive of their saved Reddit posts.
Reddit SPD will download images and videos hosted on Reddit, as well as create text files for each saved comment and post.
Please also check out the Reddit Video Downloader and Reddit Unsaver as relevant projects.
đ This website
A small scale static website acting as a digital resume, where I can showcase all the relevant information for my proffessional career.
I started with a template by following a tutorial, and slowly added features by researching the relevant HTML, CSS and JS code.
Please also check out the Python Website Generator script that I am using to update the content of this website.
đ¤ Simple Neural Network
My first attempt at understanding neural networks, I created my own, simple version of one with Python, as well as some example applications.
I started by following a tutorial written in JavaScript, which I refactored on the go to Python. I then enhanced it by allowing the user to modify the number of hidden layers, as well as train the model in mini-batches.
Still a work in progress, as I intend to optimise it further, as well as create an optical character recognition (OCR) application around it.
đĢ EnMasse Email
An application written in Python that is capable of sending multiple e-mails automatically with a high degree of customization.
The user provides a template with placeholder text, as well as a file containing the data to replace said placeholders.
Inspiration for this project was my previous job with Eli Lilly, where I had to contact several vendors for the same issue, but could not automate it at the time.
đ DummPy
An application written in Python that can produce dummy data of several different types.
The user can provide samples of data that will be used by the application to produce different combinations as specified. The user can then save the data to an excel or .csv file.
This was my first application in Python, and I created it so I can use the data generated as practice for future data analysis projects.
đšī¸ DisInfected
A small and simple top down videogame written in JavaScript and displayed on HTML canvas.
My first project with programming languages, after following a tutorial on making videogames, between graduating University and the beginning my military service.
You can find a playable demo here.