Hire the Best Technical Editors
in South Korea

Born into a family of musicians, I began piano lessons at age 6 and discovered the double bass at 13. After high school, I pursued classical music at university, majoring in double bass performance. My passion for music—which I see as a universal "language" of art and expression—naturally extended to human languages and cultures. English captivated me early on, often feeling more intuitive than my native tongue. Since 2006, I’ve immersed myself in Korean language and culture through self-directed study, building a career as a freelance translator, interpreter, and language tutor both in Germany and South Korea. For over a decade, I’ve specialized in diverse linguistic services, including: → Translation & Localization → Proofreading & Editing → Creative Writing & Copywriting → LLM Training & Evaluation → Speech Recording & Voice Projects Recently, I’ve expanded into AI-driven creative design, mastering tools like InstaDoodle, Artistly, and TextBuilder (Pro licenses). I now offer: → Print-Ready Illustrations & Book Covers → Logo Design & Brand Assets → Animated Doodle Videos Blending artistic sensibility with technical precision, I help clients communicate impactfully—whether through words, sound, or visual storytelling.

Korean–English Bilingual | AI Data Annotation & Technical Writing I specialize in Korean speech and text data annotation for AI model training, with hands-on experience in transcript alignment, metadata tagging, and RLHF- or chatbot-based evaluation workflows. As a senior reviewer on multi-layered AI projects, I’ve contributed to prompt refinement, domain/environment classification, and structured quality reviews to ensure dataset reliability and training value. I’m comfortable following complex annotation guidelines precisely and consistently. In parallel, I bring 4+ years of experience supporting B2B SaaS platforms, where I handled technical support, process design, and documentation. This background has helped me build strong technical literacy and a structured communication skill set—skills I aim to apply to freelance opportunities in technical content writing as well, especially where clarity and guideline adherence are critical. Core Strengths: • Korean speech annotation, RLHF & chatbot evaluation • Transcript-text alignment & metadata consistency checks • Writing manuals and user guides for SaaS tools • Clear communication in both Korean and English Additional Capabilities: • Natural Korean voice recording for AI training datasets • Experience with product upload workflows on Korean e-commerce platforms Open to: – AI data tasks (RLHF, prompt tuning, chatbot/speech QA) – Technical documentation and content writing – English-to-Korean refinement with attention to tone and instruction-level accuracy

I take pages that are underperforming against a client's own scoring target and get them past it, then put them live. Ten pages for a Shopify plant nursery, each with a target written into the contract: 59 to 89, 47 to 89, 54 to 95, 65 to 97, 70 to 92, 72 to 89, 81 to 92, 55 to 100, and two more. Every one past target. All ten milestones paid. On four of those pages the copy was never the problem. One was being graded against the wrong search intent, so correcting the benchmark moved it from 55 to 86 with the body text untouched. One had six topics where a single topic sat at 17 and held a third of the total score by itself. One was describing a different fruit than the one it sold. I check the store's full product catalog against the page before I write, which on that account surfaced varieties the page was selling that the store did not stock, product handles still carrying duplication artifacts, and a meta description naming the wrong region. Then I publish. Collection and blog pages go live in Shopify with internal product links mapped, images resized to spec, alt text written, author and date set. Not a document handed over for someone else to paste. I am also a native Korean speaker, and that is a separate line of work rather than a footnote. I write and transcribe Korean to English: drama and film scene breakdowns with Hangul, romanization, English and a register note per line, recap scripts for a YouTube channel, and language-learning blog content. Korean comprehension and native-level English are usually two hires. Here they are one. How the desk runs: research and outline, AI-assisted drafting rewritten by hand, SEO and GEO structure, a full native line edit, then fact-check and QA. Clients who want AI in the loop get it. Clients who want it invisible get that too. If your brand sells to Spanish-speaking customers, I deliver EN to ES in Latin American Spanish, with two bilingual passes on every Spanish piece. Send me one URL and the keyword it targets, or one scene and the format you need, and I will tell you what is actually holding it back before you commit to anything.

I shoot, edit, and produce video for brands and creators. What I create: - Ad videos & UGC — for products, brands, offers - E-commerce & DTC video variations — product videos and ad versions for testing - YouTube & Reels/Shorts production — storytelling, structure, pacing, retention-focused editing - Hybrid ads — live-action performance enhanced with AI environments and b-roll Craft: - Cinematography - Directing - On-camera performance (modeling, voice over) - Casting and talent sourcing, when the project needs it (AI as a production accelerator) Why me: I'm a one-person team — scriptwriting, shooting, editing, color — and I often appear on camera myself as a model. That saves you weeks and a serious part of the budget. Based in Seoul, South Korea. I shoot day-to-day on an iPhone 15 Pro — fast and flexible for UGC and on-location work. When a project needs maximum image quality, I rent a professional camera kit, so you only pay for that gear when it's actually needed. Happy to hop on a free 15-min call to discuss your project — or book a full consultation if you need deeper help with your social media content strategy. Message me — I usually respond within a few hours.

Anyone can generate a pretty AI shot today - that's not the hard part anymore. What actually drives results is knowing how to build the video itself: the hook in the first 2 seconds, the pacing that keeps people watching, and the structure that turns a scroll into a sale. That's what I bring - full-cycle AI content built around retention and ad performance, not just visuals. I work across product photography, animated scenes, and short-form social ads for food, fashion, automotive, and consumer brands - combining strong creative direction with an understanding of what actually makes people stop scrolling. What I deliver: Short-form ads for Instagram, TikTok, Reels & Facebook built on a hook → tension → payoff structure - not just "nice footage" Scene-by-scene scripting before a single frame is generated, so every shot earns its place in the retention curve Premium AI product, fashion, food, and automotive visuals Realistic AI animation from still photos or concepts End-to-end pipeline: script/structure → moodboards → AI images → animation → editing → final export Why brands choose me: I think like a media buyer, not just a visual artist - every second is built to hold attention and drive action I can turn a raw idea into a scroll-stopping ad structure, then execute it end-to-end with AI tools (Higsfield, Kling, Veo, SeeDance, HeyGen and others - I pick the right tool for the shot, not the other way around) Clean, cinematic execution - but the strategy always comes first Fast communication and reliable delivery Experience blending real footage with advanced AI tools If you need AI content that doesn't just look good but actually performs - hooks, retention, and all - I can take it from idea to final export.

8 iOS apps live on the App Store — built solo, from architecture through App Review approval. If your app is half-built, stalled, or stuck in review, that's the exact problem I solve. WHAT I SHIP - iOS/macOS in SwiftUI (Swift 6 strict concurrency) — architecture to App Store approval - StoreKit 2 subscriptions and IAP that pass review (8 approvals, including Catalyst, watchOS, CarPlay) - FastAPI backends and Next.js/React frontends for the same product - Rescue work: half-finished codebases, rejected builds, abandoned repos PROOF YOU CAN CHECK IN 30 SECONDS Search "SwiftQuantum" on the App Store, or open ide.swiftquantum.tech. Everything I claim is running right now. WHY THE BACKGROUND HELPS My own products are quantum-computing tools — a 127-qubit circuit IDE, a post-quantum cryptography scanner (NIST FIPS 203). Building those alone is why ordinary product work moves fast for me, and why I catch edge cases early. Patent holder (AI systems). Excellence Award, Korea Open Data Forum 2024. 1st place, national startup competition. Former CTO of a product serving 10,000+ daily users. IEEE member, presenting at IEEE Quantum Week 2026 in Toronto. HOW I WORK Honest scoping — I'll tell you if something is a bad idea before you pay for it. Daily written updates. Nothing I demo is fake. Seoul time (UTC+9): you send feedback at end of day, you wake up to progress. Send me your spec, or even a rough idea. I'll reply with a plan, a realistic timeline, and what I'd cut to ship sooner.