About Wenilson Marinho

Profile, skills and professional background

Personal Details
  • Full Name: Wenilson
  • Email: mwenilson@gmail.com
  • Location: Krakow, Poland (EU-based)
  • Profession: Multilingual Interpreter, Translator, Teacher, Developer
Languages
  • Brazilian Portuguese – Native or Bilingual Proficiency
  • English – Native or Bilingual Proficiency (C2 Certified, 76/100, EF SET, Mar 2025; Oxford Online Placement Test C2 Proficient, Mar 2022; C1 Advanced, Jun 2019)
  • Japanese – Elementary Proficiency
  • Polish – Full Professional Proficiency (B1 Certified, Polish State Exam, Dec 2023)
  • Russian – Professional Working Proficiency (Certificate expired Feb 2022, Pushkin State Russian Language Institute, Feb 2017)
  • Spanish – Full Professional Proficiency
General Skills
  • Multilingual Communication
  • Teaching and Tutoring
  • Translation and Localization
  • Problem-Solving and Troubleshooting
  • Customer-Facing Support
Technical Skills
  • Front-End Development: HTML5, CSS3 (Theming, Grid, Utility Classes), Vanilla JavaScript
  • Scripting and Programming: Python (Scripting, JSON, APIs, Penetration Testing), Bash, JavaScript (Blockchain)
  • Web Technologies: Responsive Design, Mobile-First UI, Web Storage API (localStorage)
  • Third-Party Integration: AOS (Animations), Calendly, Vimeo, WhatsApp/Telegram/Signal/Instagram CTAs
  • Version Control: Git, Netlify Deployment
  • Data Management: JSON, SQL (Basic), Webhooks
  • Security: Cryptography, VPN/Firewall Concepts, SIEM Fundamentals
  • UI/Design: CSS Token Systems, Drag-and-Drop (HTML5), User Interface Design
  • Debugging: Log Analysis, Error Tracking
  • Static Site Management: Modular Content, Reusable Fragments
  • Serverless Deployment: Docker (Basic), Netlify Hosting
Teaching & Interpretation Skills
  • Language Teaching Methodology
  • English as a Second Language (ESL)
  • Medical Interpretation (HIPAA, PIPEDA, PHIPA Compliance)
  • Grammar and Content Adaptation
Projects
  • OiTutor Landing Page (Jun 2025 - Present) – Designer / Front-End Dev. Skills: Front-End Development, CSS. Responsive page with Calendly & Vimeo embeds and messenger CTAs.
  • OiTutor Website (Jun 2025 - Present) – Self-Employed. Skills: HTML5, Vanilla JavaScript, JSON, Python, Third-Party Tools Integration, Git + Netlify Version Control. Responsive landing page with pricing, testimonials and more.
  • AI Lesson-Prompt Generator (May 2025 - Present) – Skills: JSON, Bash, Python. CLI tool for ChatGPT lesson prompts; Spanish-language HTML prototype.
  • Full-Stack English-Placement Test (Apr 2025 - Present) – Solo Dev. Skills: HTML/CSS, Vanilla JS, Node + Express. 90-question self-grading quiz with real-time timer and CEFR scoring.
  • Interactive Lesson Builder (Apr 2025 - Present) – Front-End Dev. Skills: HTML5 Drag-&Drop, CSS Grid, JS. Reusable exercise component from TED-talk transcript.
  • JP→PL Import Calculator – Vanilla JavaScript, Responsive UI. Calculates landed cost in PLN/USD/YEN.
  • Linux SysAdmin Training Portal – JS, JSON Schema, CSS. Single static file for self-study.
  • Security & Utility CLI Suite – Python, Cryptography. Password generator and Caesar-cipher demo.
  • Medical Glossary (Jun 1, 2023) – Amazon KDP publication of nearly 1000 medical terms. View on Amazon.
Experience
  • English Second Language Tutor, Letuelezioni (Jul 2025 - Present, 1 month) – Freelance, Remote. Skills: ESL, Teaching English as a Foreign Language.
  • English Second Language Tutor, Preply (May 2025 - Present, 3 months) – Contract, Remote. Skills: Tutoring, Grammar, Teaching.
  • Portuguese OPI/VRI, Voyce (Jun 2024 - Mar 2025, 10 months) – Contract. Provided Portuguese-English interpretation in various contexts.
  • Freelance Python Developer, Self-Employed (Jan 2022 - Dec 2024, 3 years) – Created Python projects for web lessons, dictionary app, security tools and more.
  • Volunteer Translator, Transifex (Aug 2019 - Dec 2024, 5 years 5 months) – Localized "Mastering Bitcoin" and PIVX wallet.
  • Portuguese OPI/VRI, GLOBO (May 2022 - May 2024, 2 years 1 month) – Contract interpreter.
  • Brazilian Portuguese Translator, Yeehe-译禾 (Apr 2022 - Apr 2024, 2 years 1 month) – Localized games from English to Brazilian Portuguese.
  • Medical Interpreter, 360 Interpreters Academy (Oct 2021 - Apr 2022, 7 months)
  • English Teacher, Skyeng (Sep 2018 - Feb 2022, 3 years 6 months)
  • Sales Manager, Skyeng (Nov 2018 - May 2019, 7 months)
  • Freelance Translator, Self-Employed (Feb 2017 - Oct 2021, 4 years 9 months)
  • Administrative Officer, Maciel & Fontes Advocacy Office (Jan 2013 - Jan 2017, 4 years 1 month) – Campina Grande Area, Brazil.
Education
  • Bachelor's Degree, Law School, Unifacisa Centro Universitário (2012 - 2017)
Language Certifications
  • EF SET English Certificate (C2 Proficient, Mar 2025)
  • Oxford Online Placement Test C2: Proficient (Mar 2022)
  • Oxford Online Placement Test C1: Advanced (Jun 2019, Credential ID: 4701600)
  • Polish State Exam Certificate B1 (Dec 2023)
  • Сертификат о владении русским языком (Feb 2017, expired Feb 2022)
Teaching & Education Certifications
  • Language Teaching Methodology (Preply, Jun 2025, Credential ID: 6l22f6zy16)
Medical & Healthcare Certifications
  • Medical Specialty Series: Obstetrics & Gynecology (Voyce, Oct 2024)
  • Medical Specialty Series: Cardiology (Voyce, Sep 2024)
  • HIPAA and Fraud, Waste & Abuse (Voyce, Jul 2024)
  • PIPEDA & PHIPA (Voyce, Jul 2024)
  • Medical Interpreter Orientation & Compliance Training (Feb 2022)
  • Medical Interpretation Training (Oct 2021)
Cybersecurity & IT Certifications
  • SIEM Fundamentals (Google Cloud Security, Apr 2025, Credential ID: hcyizmjbkj)
  • Linux Networking and Administration (LFS211, Jun 2024, Credential ID: LF-t5ijhxhw9e)
  • Cybersecurity Essentials (LFC108, May 2024, Credential ID: LF-do2nym49t3)
  • LPI Security Essentials (020-100, Sep 2023)
  • CompTIA Network+ (Jun 2023)
  • Python for Penetration Testing (Jun 2023)
  • Hacking Wireless Networks - Theory and Practice (May 2023)
  • Endpoint Detection and Response (Apr 2023)
  • PCI Compliance (Apr 2023)
  • Policy Compliance (IT) (Apr 2023)
  • Vulnerability Management Detection and Response (Apr 2023)
  • Vulnerability Management Foundation (Apr 2023)
  • Introduction to Python and Hacking with Python (Feb 2022)
  • Cyber Security Volumes 1-4 (Jan 2021)
Blockchain & Cryptocurrency Certifications
  • Cryptography and Privacy Coins (Apr 2020)
  • Ethereum Smart Contract Programming 201 (Apr 2020)
  • Ethereum Smart Contract Security (Apr 2020)
  • Bitcoin Attacks (Mar 2020)
  • DeFi 101 (Mar 2020)
  • Ethereum Smart Contract Programming 101 (Mar 2020)
  • JavaScript Programming for Blockchain Developers (Mar 2020)
  • Blockchain & Bitcoin 101 (Feb 2020)
  • Ethereum 101 (Feb 2020)

Demonstrated skills from OiTutor project include static website structure, CSS styling/theming, interactive JavaScript, AOS animations, modular content, and Netlify hosting. Capable of rapid website development using reusable fragments and optimized deployment workflows.