Andrii Polishchuk

Inhaber, RAG/ML/Data Engineer, CRYPTON Systems Lab
Lviv, Ukraine

Fähigkeiten und Kenntnisse

Team work
Communication skills
Cryptography
Computer Science
Information technology
Big Data
Blockchain
Data Warehouse
Python
Cloud Computing
Apache Spark
ETL
Applied Mathematics
Machine Learning

Werdegang

Berufserfahrung von Andrii Polishchuk

  • Bis heute 1 Jahr und 1 Monat, seit Feb. 2025

    RAG/ML/Data Engineer

    CRYPTON Systems Lab

    RAG/LLM and ML/Data Engineer in applied cryptography and cryptanalysis, designing research-grade RAG architectures and formalised mathematical reasoning pipelines. Focused on data-driven cryptanalysis, structural analysis of digital signature and key-generation systems, and large-scale analytical and simulation frameworks using ML/DL and distributed computing.

  • 4 Jahre und 11 Monate, Apr. 2020 - Feb. 2025

    Big Data Engineer

    SoftServe

    Big Data Engineer with 5 years of experience delivering end-to-end ETL pipelines and data platforms across cybersecurity, mining, telecom, online publishing, and digital marketing domains. Specialised in scalable data processing with Spark and cloud ecosystems (Azure, GCP), including orchestration, deployment, and performance optimisation.

  • 10 Monate, Juni 2019 - März 2020

    Big Data Engineer

    EPAM Systems

    Big Data Engineer in the e-commerce domain, developing and optimising ETL pipelines and performance-focused data solutions aligned with business requirements. Worked with Scala, Python, SQL, Spark, and Azure (ADF/Databricks), delivering analytics and visualisation-ready datasets.

  • 2 Jahre und 6 Monate, Okt. 2016 - März 2019

    Blockchain Developer

    Self-employed

    Blockchain Developer specialising in cryptographic protocols and blockchain services, with a focus on optimising algorithms such as ECDSA and SHA-256 using applied mathematics and algorithmic techniques. Implemented distributed computing solutions for cryptographic workloads using Python, C, and Linux-based toolchains.

  • 4 Jahre und 2 Monate, März 2012 - Apr. 2016

    Software Engineer

    SoftServe

    Software Engineer delivering enterprise solutions in healthcare, finance, and HR domains, focused on refactoring, performance optimisation, and development of web and desktop modules within distributed multi-database architectures. Contributed to complex system integration and mentored junior engineers using the Microsoft stack (C#, ASP.NET MVC, MS SQL) and related tools.

  • 2 Jahre und 6 Monate, Sep. 2009 - Feb. 2012

    IT Consultant

    Self-employed

    Worked as an independent engineer and IT-consultant in different roles, namely the computers maintenance and software support.

  • 1 Jahr und 2 Monate, Juli 2008 - Aug. 2009

    Software Enginee

    Scientific-Production Enterprise «TROYAN»

    Software Engineer developing Windows desktop solutions for production control and financial management in the oil and gas industry. Built WinAPI-based systems with real-time measurement and RS-232/Ethernet data integration, using C/C++, Delphi, and MS SQL.

Sprachen

  • Russisch

    Muttersprache

  • Ukrainian

    Muttersprache

  • Englisch

    Fließend

  • Polnisch

    Grundlagen

XING – Das Jobs-Netzwerk

  • Über eine Million Jobs

    Entdecke mit XING genau den Job, der wirklich zu Dir passt.

  • Persönliche Job-Angebote

    Lass Dich finden von Arbeitgebern und über 20.000 Recruiter·innen.

  • 21 Mio. Mitglieder

    Knüpf neue Kontakte und erhalte Impulse für ein besseres Job-Leben.

  • Kostenlos profitieren

    Schon als Basis-Mitglied kannst Du Deine Job-Suche deutlich optimieren.

21 Mio. XING Mitglieder, von A bis Z