Software engineer with 10+ years building data systems, multi-tenant platforms, and developer tools in Python, Go, and TypeScript. Currently lead engineer on a multi-tenant SaaS platform - owning architecture and end-to-end delivery from Postgres schemas and CI pipelines through React frontends. Author of xpr-lang, a sandboxed cross-runtime expression language with byte-identical implementations in TypeScript, Python, and Go, shipped to npm, PyPI, and Go modules.https://shahadul.com/en-ushttps://shahadul.com/blog/evolution-of-computer-shortcuts/https://shahadul.com/blog/evolution-of-computer-shortcuts/A journey through six decades of human-computer interaction design, from cryptic terminal commands to intuitive touch gestures, and what it teaches us about interface design.Wed, 03 Sep 2025 00:00:00 GMTUI/UXProductivityComputing HistoryKeyboard ShortcutsTouch Gestureshttps://shahadul.com/blog/advanced-go-concurrency/https://shahadul.com/blog/advanced-go-concurrency/Dive into advanced Go concurrency patterns beyond basic goroutines and channels, with practical examples and performance considerations for real-world applications.Thu, 08 Aug 2024 00:00:00 GMTGoConcurrencyPerformanceChannelsDesign Patternshttps://shahadul.com/blog/multi-tenant-kubernetes/https://shahadul.com/blog/multi-tenant-kubernetes/How to build a secure, scalable multi-tenant Kubernetes deployment service using Go, addressing isolation, resource management, and security challenges.Thu, 25 Jul 2024 00:00:00 GMTKubernetesGoMulti-tenancyCloud NativeDevOpshttps://shahadul.com/blog/unix-search-commands/https://shahadul.com/blog/unix-search-commands/A deep dive into powerful Unix search commands that will transform your workflow, from classic tools like find and grep to modern alternatives like fd and ripgrep.Sun, 21 Jul 2024 00:00:00 GMTUnixLinuxCLIProductivitygrepfindripgrephttps://shahadul.com/blog/supercharging-search-with-fzf/https://shahadul.com/blog/supercharging-search-with-fzf/Following up on our Unix search commands overview, learn how to combine fzf with grep, ripgrep, fd, and other tools to create an incredibly powerful command-line workflow.Sun, 30 Jun 2024 00:00:00 GMTUnixLinuxCLIfzfProductivitygrepfindripgrephttps://shahadul.com/blog/javascript-runtimes-deno/https://shahadul.com/blog/javascript-runtimes-deno/An exploration of the JavaScript runtime ecosystem, examining why Deno, despite its technical advantages and pedigree, failed to dethrone Node.js, and what this teaches us about developer...Sat, 15 Jun 2024 00:00:00 GMTJavaScriptNode.jsDenoBunWeb Developmenthttps://shahadul.com/blog/building-cli-tools-bubbletea/https://shahadul.com/blog/building-cli-tools-bubbletea/A practical guide to creating beautiful, interactive terminal applications in Go using the Bubble Tea framework, with step-by-step examples and best practices.Sun, 02 Jun 2024 00:00:00 GMTGoCLITUIBubble TeaTerminal