https://lien0214.github.io/en/posts/ Recent content in Posts on Yi-Wei Lien Hugo en Sun, 14 Jun 2026 00:00:00 +0000 https://lien0214.github.io/en/posts/seam-carving-gpu/ Sun, 14 Jun 2026 00:00:00 +0000 https://lien0214.github.io/en/posts/seam-carving-gpu/ A profiling-driven study of exact seam carving on an NVIDIA V100 — optimizing Naive → Fused → Prefetch → BytePtr → Tiled, reaching 5.73 ms/seam at 8K, and then proving the ceiling is structural. https://lien0214.github.io/en/posts/leaving-shopback/ Thu, 20 Nov 2025 00:00:00 +0000 https://lien0214.github.io/en/posts/leaving-shopback/ Yesterday marked the end of my six-month journey as a Software Engineer Intern on ShopBack's Backend Core-Experience Team. Gratitude, lessons, and what's next. https://lien0214.github.io/en/posts/shopback-monorepo/ Sat, 01 Nov 2025 00:00:00 +0000 https://lien0214.github.io/en/posts/shopback-monorepo/ The hardest task of my Shopback internship: migrating inter-service API calls to direct function calls in a TypeScript monorepo — with no prior art on my team and a mentor who hadn't seen it either. https://lien0214.github.io/en/posts/shopback-impact/ Fri, 10 Oct 2025 00:00:00 +0000 https://lien0214.github.io/en/posts/shopback-impact/ Adding merchant icons to a selection panel at Shopback. 30% more users clicked in. It made me rethink what 'impactful work' actually means. https://lien0214.github.io/en/posts/bubblo-devlog/ Thu, 10 Jul 2025 00:00:00 +0000 https://lien0214.github.io/en/posts/bubblo-devlog/ Three months, six people, one 2D platformer. What I learned adapting corporate workflow to a student team — and why the retrospective felt wrong the whole time. https://lien0214.github.io/en/posts/leaving-cmoney/ Sun, 20 Apr 2025 00:00:00 +0000 https://lien0214.github.io/en/posts/leaving-cmoney/ Nine months building financial data APIs at CMoney: learning OOP the hard way, inheriting production code that predates good design, and wrapping up just as agentic programming started changing what 'coding work' even means.