Viliam

Valent

Experience

Nov 2022–Dec. 2023

Senior Python Developer, Nano Energies

Key focus on designing and building a platform based on Apache Airflow for running portfolio optimization.

Involved in the design and implementation of a data platform, integrating data from various providers.

Developed tooling and established best practices for Python development.

Conducted code reviews to ensure quality and functionality.

Handled cloud-based DevOps tasks, including work with Kubernetes (AKS), Docker, and CI/CD pipelines.

May 2021–Sep. 2022

Quantitative Developer & Quant Dev Lead, Quantlane

Responsibilities: Leading development of automated trading strategies, software architecture, code reviews & mentoring, ensuring legal compliance, and maintaining high code quality.

Projects:

Main developer of a new specialized front-end of the trading platform
Implemented several automated trading strategies into production

Oct. 2019–Dec. 2020

Senior Full Stack Web Developer, Quantlane

Responsibilities: Participation in hiring process - interviewing and mentoring;

Python back-end development with mypy, asyncio, and django;

Front-end development using TypeScript, React, React Redux, and Redux-Saga;

Kubernetes cluster management

Projects:

Main developer of in-house Market Abuse Detection application
Author of orange - python code formatter based on black
Contributor to cq - python code quality checker
Worked on BE and FE of the main trading platform

Oct. 2018–Sep. 2019

Web Developer, Scarfbot

Responsibilities: Python back-end development using django; Front-end development using React and MobX; Docker and Docker Compose

Projects:

UPS shipping cost API integration
Allegro.pl full integration with shop back-end

Oct. 2016–Jun. 2018

Watson Developer, IBM Czech Republic

Responsibilities: Front-end and back-end web development, IBM Watson Developer Cloud APIs, Technical lead of 8 developers from July 2017

Projects:

Chatbot Hackathon organized by Telenor, Belgrade, Serbia (Watson Conversation Expert)
Future Skills Academy, Lisbon, Portugal (Cognitive instructor)
Chatbot platform - web application for creating chatbots without coding (lead developer)
Conversational Studio - international project creating industrial chatbots (team leader)
10+ cognitive PoCs for European partners (developer)

Sep. 2015–Sep. 2016

Security Expert Internship, O2 Czech Republic

Responsibilities: Python development, Data analysis, VBA scripting

Projects: Network monitoring using Kibana by elastic, Authorship attribution using machine learning and stylometry

Skills

Python

AIOHTTP
Apache Airflow
PyPy
Django & Django REST framework
Asynchronous programming with asyncio
Static type checking with mypy & pyright

Web

TypeScript, JavaScript, Node.js, HTML, CSS, Sass, Less

Frameworks: React, Redux, ReduxToolkit, Redux-Saga, Next.js, Astro, Gatsby

Other: WebAssembly using AssemblyScript

Essentials

Git, Shell scripting (Bash), GitHub, GitLab, SSH

Databases

PostgreSQL, TimescaleDB, SQLite

Education

2016–2018

Master’s Degree in Mathematics, Charles University
Prague, Czech Republic

Courses: Quantum Information, Numerical Algorithms, Computer Algebra,
Computational Complexity, Logic and Complexity

Research Grant: Algorithms for finding nonassociative quasigroups, 2017

2013–2016

Bachelor’s Degree in Mathematics, Charles University
Prague, Czech Republic

Courses: Object-oriented Programming, Application Programming in Java,
Theoretic and Applied Cryptography, Error-correcting Codes,
Number Theory and RSA, Data and Process Models

Publications

Drápal, Aleš, and Valent, Viliam. “Few associative triples, isotopisms and groups.”
Designs, Codes and Cryptography 86.3 (2018): 555-568.

Drápal, Aleš, and Valent, Viliam. “High nonassociativity in order 8 and an associative index estimate.”
Journal of Combinatorial Designs 27.4 (2019): 205-228.

Drápal, Aleš, and Valent, Viliam. “Extreme nonassociativity in order nine and beyond”
Journal of Combinatorial Designs 28.1 (2020): 33-48.

Side Projects

VURF – format, parser, CLI, and python module for saving packages into Python-ish looking file
pylocalc – python interface for manipulating LibreOffice Calc spreadsheets
Easy Markdown CV – résumé generator converting Markdown to HTML and PDF
tile – syntax and config generator for i3 and sway
locals – lightweight manager for per-directory bash aliases and environment variables
stacki3 – automatic layout for i3 and sway - tiling window managers
Todoist Scheduler – power-user tool for scheduling repeated To-Dos
Coin Manager – CLI application for managing cryptocurrencies

Volunteering

Oct. 2019–Present

Volunteer, Probuďme Nusle

Help with organizing community running races

Created website podnuselak.cz

Apr. 2022–Jun 2022

Full Stack Web Developer, Česko.Digital

Worked on Pomáhej Ukrajině project