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    <title>CV | Anton Orlenko</title>
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    <div class="resume" role="document">

        <!--  Sidebar (contacts, skills, languages, cert) -->
        <aside class="sidebar" aria-label="Sidebar">
            <section class="block contacts">
                <h2 class="sidebar_title">Contacts</h2>
                <address class="sidebar_panel contact_panel">
                    <a class="sidebar_row contact_row" href="https://github.com/Retro52" target="_blank" rel="noopener">
                        <i class="contact_icon fa-fw fa-brands fa-github" aria-hidden="true"></i>
                        <span class="sidebar_row_label">GitHub</span>
                        <span class="sidebar_row_value">Retro52</span>
                    </a>

                    <a class="sidebar_row contact_row" href="tel:+48-788-176-099">
                        <i class="contact_icon fa-fw fa-solid fa-phone" aria-hidden="true"></i>
                        <span class="sidebar_row_label">Phone</span>
                        <span class="sidebar_row_value">+48-788-176-099</span>
                    </a>

                    <a class="sidebar_row contact_row" href="mailto:orlenko.anto@gmail.com">
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                        <span class="sidebar_row_label">Email</span>
                        <span class="sidebar_row_value">orlenko.anto@gmail.com</span>
                    </a>
                </address>
            </section>

            <section class="block skills">
                <h2 class="sidebar_title">Tech Skills</h2>
            
                <div class="skill_groups">
                    <div class="skill_group">
                        <div class="skill_group_title">Programming</div>
                        <div class="skill_tags">
                            <span>C++20/17</span>
                            <span>C</span>
                            <span>Python</span>
                            <span>Vulkan</span>
                            <span>OpenGL (ES)</span>
                            <span>GLSL/SPIR-V</span>
                        </div>
                    </div>
            
                    <div class="skill_group">
                        <div class="skill_group_title">Tools</div>
                        <div class="skill_tags">
                            <span>CMake</span>
                            <span>Git</span>
                            <span>RenderDoc</span>
                            <span>Nvidia Nsight</span>
                            <span>Tracy</span>
                            <span>Intel VTune</span>
                            <span>Docker</span>
                            <span>GitLab CI</span>
                            <span>WSL</span>
                        </div>
                    </div>
                </div>
            </section>

            <section class="block softskills">
                <h2 class="sidebar_title">Strengths</h2>
                <div class="skill_group">
                    <div class="skill_tags">
                        <span>Ownership</span>
                        <span>Reliability</span>
                        <span>Communication</span>
                        <span>Team player</span>
                        <span>Performance-oriented</span>
                        <span>Adaptability</span>
                    </div>
                </div>
            </section>

            <section class="block languages">
                <h2 class="sidebar_title">Languages</h2>
            
                <div class="sidebar_panel">
                    <div class="sidebar_row">
                        <span class="sidebar_row_label">English</span>
                        <span class="level_tag">Advanced</span>
                    </div>
            
                    <div class="sidebar_row">
                        <span class="sidebar_row_label">Polish</span>
                        <span class="level_tag">Intermediate</span>
                    </div>
            
                    <div class="sidebar_row">
                        <span class="sidebar_row_label">Ukrainian</span>
                        <span class="level_tag">Native</span>
                    </div>
                </div>
            </section>
            
            <section class="block certs">
                <h2 class="sidebar_title">Licenses &amp; Certifications</h2>
                <div class="sidebar_panel">
                    <ul class="certs_list">
                        <li>
                            <a class="sidebar_row_label" href="https://coursera.org/share/838ef2a5f25dc9387a4e7f74d4e8d526"
                                target="_blank" rel="noopener">
                                C++ Programming for Unreal Game Development
                            </a>
                        </li>
                    </ul>
                </div>
            </section>
        </aside>

        <main class="content" role="main">

            <!--  Intro / summary  -->
            <header class="intro avoid-break">
                <p class="role">C++ Developer</p>
                <h1 class="name">Anton Orlenko</h1>
                <p class="summary">
                    C++ developer with 3+ years of experience in game and engine technology.
                    Currently working at Playrix; previously spent nearly three years at Netgame working on
                    an in-house 2D engine, re-engineering the build pipeline, maintaining core systems, and shipping engine features.
                </p>
            </header>

            <!--  Work Experience  -->
            <section class="section experience avoid-break">
                <h2 class="section_title">Work Experience</h2>

                <!-- Playrix -->
                <article class="item">
                    <header class="item_header">
                        <h3 class="item_title">C++ Developer (Game Features) | Playrix</h3>
                        <div class="meta">
                            <time datetime="2025-11">Nov 2025</time> - <span>Present</span>
                            <span class="divider">•</span> Gdańsk, Poland
                            <span class="divider">•</span> Remote
                        </div>
                    </header>
                    <ul class="bullets">
                        <li>Worked on production C++ gameplay, UI, feature logic, and debug/QA tooling for three major features.</li>
                        <li>Investigated production reports, reproduced issues, identified root causes, and implemented or proposed fixes.</li>
                        <li>Profiled and performance-tested developed features using Tracy and RenderDoc, then implemented targeted optimizations.</li>
                    </ul>                
                </article>

                <!-- Netgame -->
                <article class="item">
                    <header class="item_header">
                        <h3 class="item_title">C++ Developer (Core Tech) | Netgame</h3>
                        <div class="meta">
                            <time datetime="2023-02">Feb 2023</time> - <time datetime="2025-10">Oct 2025</time>
                            <span class="divider">•</span> Kyiv, Ukraine
                            <span class="divider">•</span> On-Site
                        </div>
                    </header>
                    <ul class="bullets">
                        <li>Maintained and extended a production in-house 2D game engine.</li>
                        <li>Built internal tools from scratch, including a level editor, to streamline content workflows and reduce day-to-day friction for the team.</li>
                        <li>Reworked the renderer to support custom shaders while preserving backward compatibility, improving rendering performance by 5–10% without additional runtime overhead.</li>
                        <li>Introduced a fiber-based asynchronous job system that reduced scene loading times by 20–50%, depending on scene complexity, and was later adopted across the project for editor background tasks and resource downloads.</li>
                        <li>Designed and implemented a resource packaging system that made loading up to 10x faster and reduced build size by roughly 25–30%.</li>
                        <li>Modernized the desktop and mobile build pipeline with CMake, making builds up to 2x faster on non-Windows platforms, improving debugging, simplifying releases, and enabling better Sentry crash reporting through debug-symbol support.</li>
                    </ul>                
                </article>
            </section>

            <!--  Selected Projects  -->
            <section class="section projects avoid-break">
                <h2 class="section_title">Selected Projects</h2>

                <!-- GDR -->
                <article class="item">
                    <header class="item_header">
                        <h3 class="item_title">
                            <a class="projects_link" href="https://github.com/Retro52/gdr" target="_blank" rel="noopener">GPU Driven Renderer</a>
                        </h3>
                        <div class="meta">
                            <time datetime="2025-11">Nov 2025</time> - <span>Present</span>
                        </div>
                    </header>
                    <p class="item_summary">
                        C++20/Vulkan GPU-driven renderer focused on modern real-time rendering architecture.
                        Implements GPU-side visibility culling, Hi-Z occlusion culling, indirect draw generation,
                        bindless-style resource access, texture support, meshlet rendering experiments,
                        and multithreaded asset loading through a job system.
                    </p>
                </article>

                <!-- Project 2 (TODO: i really need more of those) -->
                <article class="item">
                    <header class="item_header">
                        <h3 class="item_title">
                            <a class="projects_link" href="https://github.com/Retro52/OpenGL-3D-Drawer" target="_blank" rel="noopener">OpenGL Renderer</a>
                        </h3>
                        <div class="meta">
                            <time datetime="2021-11">Nov 2021</time> - <time datetime="2022-09">Sep 2022</time>
                        </div>
                    </header>
                    <p class="item_summary">
                        C++17/OpenGL renderer focused on real-time 3D rendering fundamentals.
                        Implements perspective camera controls, GLSL vertex/fragment/geometry shaders, Assimp-based model loading, stb_image texture loading, material support,
                        deferred shading with multiple light sources, and directional soft shadows using cascaded shadow maps.
                    </p>
                </article>
            </section>

            <!--  Education  -->
            <section class="section education avoid-break">
                <h2 class="section_title">Education</h2>
                <article class="item">
                    <h3 class="item_title">National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute”</h3>
                    <p class="edu_line"><strong>MSc, Computer Science</strong> - <time datetime="2024-09">Sep 2024</time> - <time datetime="2026-01">Jan 2026</time></p>
                    <p class="edu_line"><strong>BSc, Applied Mathematics</strong> - <time datetime="2020-09">Sep 2020</time> - <time datetime="2024-06">Jun 2024</time></p>
                </article>
            </section>
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