https://ashishsaini.work/categories/engineering/Recent content in Engineering on Ashish SainiHugo -- 0.154.0en-usWed, 11 Feb 2026 08:20:00 +0530https://ashishsaini.work/posts/copywriting-agent-that-learns-from-clicks/Wed, 11 Feb 2026 08:20:00 +0530https://ashishsaini.work/posts/copywriting-agent-that-learns-from-clicks/Most 'AI copywriting' is a fancy autocomplete that writes once and forgets. We built an agent that researches a brand, writes with intent, ships, and then tunes itself against real click-through: a closed loop, with all the danger that implies.https://ashishsaini.work/posts/fifty-million-messages-fifty-lambdas/Tue, 30 Sep 2025 18:45:00 +0530https://ashishsaini.work/posts/fifty-million-messages-fifty-lambdas/Building Comify's communication backend serverless wasn't about avoiding ops. It was about making cost-per-message a first-class design constraint, and serverless is the only architecture that bills the way the business actually works.https://ashishsaini.work/posts/73-to-100-genai-photoshoot-pipeline/Tue, 26 Nov 2024 10:15:00 +0530https://ashishsaini.work/posts/73-to-100-genai-photoshoot-pipeline/A quarter of the catalogue had no model photo, and the physical photoshoot couldn't catch up. We closed the gap in a month with Stable Diffusion, ComfyUI, and a lot of unglamorous QA.https://ashishsaini.work/posts/erasing-glasses-12-fps-iphone/Wed, 07 Aug 2024 11:00:00 +0530https://ashishsaini.work/posts/erasing-glasses-12-fps-iphone/Existing spectacle wearers couldn't see themselves in new frames during AR try-on. The fix was to remove their glasses from the live camera feed, on-device, at 12+ FPS, with no server in the loop.https://ashishsaini.work/posts/ten-million-calls-team-of-three/Mon, 18 Mar 2024 09:30:00 +0530https://ashishsaini.work/posts/ten-million-calls-team-of-three/How a phone-number-verification product called CODAC scaled to 10M+ calls a day on a handful of telephony servers, and the boring tooling that made it possible.