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    <title>Dipankar Sarkar</title>
    <description>Writings on systems architecture, AI engineering, team building, and technology leadership.</description>
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    <lastBuildDate>Wed, 07 Oct 2026 14:12:43 GMT</lastBuildDate>
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      <title><![CDATA[Designing an On-Call Rotation That Works]]></title>
      <link>https://www.dipankar.name/writings/on-call-rotation-that-works/</link>
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      <description><![CDATA[Most on-call rotations burn out the engineers who are best at incident response, because the rotation punishes competence. Here is how to design one that doesn't.]]></description>
      <pubDate>Sun, 13 Sep 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Observability for AI Agents in Production]]></title>
      <link>https://www.dipankar.name/writings/observability-ai-agents-production/</link>
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      <description><![CDATA[Standard APM tells you a request was slow. It doesn't tell you why an agent picked one tool over another. Here is what to log, trace, and alert on instead.]]></description>
      <pubDate>Sat, 12 Sep 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Trust Boundaries for Multi-Agent Systems]]></title>
      <link>https://www.dipankar.name/writings/trust-boundaries-multi-agent-systems/</link>
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      <description><![CDATA[Single-agent guardrails like the Substrate Pattern don't compose automatically once agents delegate to other agents. Here is where multi-agent trust actually breaks.]]></description>
      <pubDate>Fri, 11 Sep 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Rust for Python AI Infra]]></title>
      <link>https://www.dipankar.name/writings/rust-for-python-ai-infra/</link>
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      <description><![CDATA[Why Rust drop-ins accelerate Python-based AI infrastructure like LiteLLM proxies and LangGraph runtimes, and where the rewrite is and isn't worth it.]]></description>
      <pubDate>Thu, 10 Sep 2026 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[AI Agent Safety Governance Playbook]]></title>
      <link>https://www.dipankar.name/writings/ai-agent-safety-governance-engineers-playbook/</link>
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      <description><![CDATA[The practical playbook for AI agent safety governance. Threat model, runtime policy, prompt injection defense, audit, red-team, and the tooling matrix.]]></description>
      <pubDate>Mon, 29 Jun 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[AI Architect in Financial Services]]></title>
      <link>https://www.dipankar.name/writings/ai-architect-financial-services-lessons-production/</link>
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      <description><![CDATA[What I learned as Principal AI Architect at a UK fintech. Building production agent systems for financial services, the frameworks, and the lessons.]]></description>
      <pubDate>Mon, 29 Jun 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[AI Governance: The 4-Tier NIST AI RMF]]></title>
      <link>https://www.dipankar.name/writings/ai-governance-financial-services-4-tier-nist-ai-rmf/</link>
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      <description><![CDATA[How to implement the 4-tier NIST AI RMF Agentic Profile for financial services. The framework I developed at Neul Labs for compliance-first AI agents.]]></description>
      <pubDate>Mon, 29 Jun 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Harmony Protocol in Rust: Parsing GPT-OSS]]></title>
      <link>https://www.dipankar.name/writings/harmony-protocol-rust-openai-gpt-oss/</link>
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      <description><![CDATA[A deep dive into implementing OpenAI's Harmony response format in Rust. Channel semantics, streaming, comparison with ChatML, and the Rust implementation.]]></description>
      <pubDate>Mon, 29 Jun 2026 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Rust for AI Agent Infrastructure]]></title>
      <link>https://www.dipankar.name/writings/rust-for-ai-agent-infrastructure-field-guide/</link>
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      <description><![CDATA[Why Rust dominates AI agent infrastructure. Memory safety, async runtime, the ecosystem, and the career path. A field guide from the founder of Neul Labs.]]></description>
      <pubDate>Mon, 29 Jun 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Building Developer Tools in the Open]]></title>
      <link>https://www.dipankar.name/writings/building-developer-tools-open-source/</link>
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      <description><![CDATA[Dipankar Sarkar shares lessons from 20 years of open source work, from Google Summer of Code to production developer tools that got adopted and sustained.]]></description>
      <pubDate>Wed, 01 Apr 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[How Nykaa Scaled to IPO: Platform Migration]]></title>
      <link>https://www.dipankar.name/writings/engineering-nykaa-zero-to-ipo/</link>
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      <description><![CDATA[The engineering decisions behind Nykaa from startup to IPO — Magento to custom Python, in-memory cart service, Kong API gateway, 500% traffic growth, 99.99% uptime.]]></description>
      <pubDate>Tue, 10 Mar 2026 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Measuring Engineering Impact That Matters]]></title>
      <link>https://www.dipankar.name/writings/measuring-engineering-impact/</link>
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      <description><![CDATA[Dipankar Sarkar presents a framework for measuring engineering impact that connects technical work to business outcomes, beyond vanity metrics like story points.]]></description>
      <pubDate>Sun, 15 Feb 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[LLM Provider Risk Management for Banks]]></title>
      <link>https://www.dipankar.name/writings/llm-provider-risk-management/</link>
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      <description><![CDATA[How to manage LLM provider risk in regulated industries: the Trust Boundaries Model, multi-provider strategy, fallback patterns, and compliance mapping.]]></description>
      <pubDate>Tue, 27 Jan 2026 00:00:00 GMT</pubDate>
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      <title><![CDATA[Remote-First Engineering Teams That Deliver]]></title>
      <link>https://www.dipankar.name/writings/remote-first-engineering-teams/</link>
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      <description><![CDATA[Dipankar Sarkar explains how to build remote-first engineering teams that outperform co-located ones: communication architecture, async workflows, and trust.]]></description>
      <pubDate>Sat, 20 Dec 2025 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Defence in Depth for AI Agents]]></title>
      <link>https://www.dipankar.name/writings/defence-in-depth-ai-agents/</link>
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      <description><![CDATA[A 5-layer kill switch architecture for production AI agents: application logic, tool execution, action policy, circuit breaker, and a manual switch.]]></description>
      <pubDate>Tue, 09 Dec 2025 00:00:00 GMT</pubDate>
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      <title><![CDATA[AI Agent Governance for Financial Services]]></title>
      <link>https://www.dipankar.name/writings/ai-governance-financial-services/</link>
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      <description><![CDATA[Dipankar Sarkar explains AI agent governance for banks: the Tiered Governance Model and Three Lines of Defence framework for SS1/23 and Consumer Duty compliance.]]></description>
      <pubDate>Tue, 18 Nov 2025 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Hiring Engineers Who Ship: A Practical Guide]]></title>
      <link>https://www.dipankar.name/writings/hiring-engineers-who-ship/</link>
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      <description><![CDATA[Dipankar Sarkar shares the hiring framework used to build teams at Nykaa, Hike, and Orangewood Labs: identifying engineers who ship, not just interview well.]]></description>
      <pubDate>Sat, 15 Nov 2025 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Scaling AI-Assisted Development]]></title>
      <link>https://www.dipankar.name/writings/scaling-ai-development-teams/</link>
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      <description><![CDATA[Dipankar Sarkar explains how to scale AI-assisted development from small teams to enterprise. The Pivot Point framework for knowing when informal practices break.]]></description>
      <pubDate>Wed, 22 Oct 2025 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[AI Agent Safety: The Substrate Pattern]]></title>
      <link>https://www.dipankar.name/writings/ai-agent-substrate-pattern/</link>
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      <description><![CDATA[Dipankar Sarkar explains the Substrate Pattern for AI agent safety: building execution envelopes that constrain LLM-powered systems while preserving capability.]]></description>
      <pubDate>Mon, 15 Sep 2025 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Invariants in AI-Generated Code]]></title>
      <link>https://www.dipankar.name/writings/invariants-ai-generated-code/</link>
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      <description><![CDATA[Dipankar Sarkar explains why unwritten invariants are the primary source of AI-generated defects, and how to make implicit constraints explicit in production code.]]></description>
      <pubDate>Thu, 28 Aug 2025 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Production-Ready AI-Assisted Development]]></title>
      <link>https://www.dipankar.name/writings/ai-assisted-development-production-guide/</link>
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      <description><![CDATA[Dipankar Sarkar explains how to use AI code generation in production systems: the Vibes Inside Guardrails framework for AI productivity with reliability.]]></description>
      <pubDate>Mon, 14 Jul 2025 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Optimizing ARM Builds in CI/CD Pipelines]]></title>
      <link>https://www.dipankar.name/writings/optimizing-arm-builds-cicd-pipelines-challenges-solutions/</link>
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      <description><![CDATA[Practical strategies for optimizing ARM builds in CI/CD pipelines: emulation challenges, native build setup, cross-compilation, and cloud-native approaches.]]></description>
      <pubDate>Mon, 21 Oct 2024 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[EdgeML and the Future of Robotics]]></title>
      <link>https://www.dipankar.name/writings/edgeml-future-robotics-next-generation-sdk-platform/</link>
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      <description><![CDATA[Dipankar Sarkar built a next-generation robotics SDK at Orangewood Labs using EdgeML for on-device AI processing, enabling intelligent robotic systems.]]></description>
      <pubDate>Fri, 15 Mar 2024 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[AutoInspect and AutoSpray: ML for Robotics]]></title>
      <link>https://www.dipankar.name/writings/autoinspect-autospray-ml-driven-precision-industrial-robotics/</link>
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      <description><![CDATA[Dipankar Sarkar built AutoInspect and AutoSpray at Orangewood Labs: ML and computer vision systems for industrial quality control and precision spray painting.]]></description>
      <pubDate>Sat, 20 Jan 2024 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Machine Learning at Hike: Five AI Systems]]></title>
      <link>https://www.dipankar.name/writings/machine-learning-hike-ai-systems/</link>
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      <description><![CDATA[Dipankar Sarkar led development of five ML systems at Hike serving millions: computer vision avatars, vernacular NLP, social matchmaking, and trust & safety.]]></description>
      <pubDate>Sat, 20 Jan 2024 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Real-Time Data Ingestion for E-Commerce]]></title>
      <link>https://www.dipankar.name/writings/building-realtime-data-ingestion-analytics-framework-ecommerce/</link>
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      <description><![CDATA[Dipankar Sarkar built Nykaa's real-time data ingestion framework processing 5B+ daily events using AWS Lambda and Apache Flink, enabling data-driven personalization.]]></description>
      <pubDate>Wed, 10 Jan 2024 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[RoboGPT: Natural Language Robot Programming]]></title>
      <link>https://www.dipankar.name/writings/robogpt-natural-language-robot-programming-industry-transformation/</link>
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      <description><![CDATA[Dipankar Sarkar developed RoboGPT at Orangewood Labs, an LLM-powered interface for natural language robot programming in industrial automation.]]></description>
      <pubDate>Sun, 15 Oct 2023 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[A Real-Time Personalized Feed for E-Commerce]]></title>
      <link>https://www.dipankar.name/writings/innovating-user-engagement-realtime-personalized-feed-ecommerce/</link>
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      <description><![CDATA[Dipankar Sarkar built a TikTok-inspired real-time personalized feed at Nykaa using AI/ML, achieving 200% increase in daily active users and 150% more engagement.]]></description>
      <pubDate>Sat, 05 Aug 2023 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[An Integrated Ad Platform and Social Commerce]]></title>
      <link>https://www.dipankar.name/writings/revolutionizing-ecommerce-integrated-ad-platform-social-commerce/</link>
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      <description><![CDATA[Dipankar Sarkar built Nykaa's integrated ad platform and social commerce solution, achieving 200% revenue increase and onboarding 1000+ influencers.]]></description>
      <pubDate>Sat, 18 Feb 2023 00:00:00 GMT</pubDate>
    </item>
    <item>
      <title><![CDATA[India's First E-Commerce Marketplace: Tradus]]></title>
      <link>https://www.dipankar.name/writings/pioneering-indias-first-ecommerce-marketplace-tradus/</link>
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      <description><![CDATA[How we built India's first true multi-seller e-commerce marketplace at Tradus: public APIs, a 15-engineer team, and the decisions behind 300% listing growth.]]></description>
      <pubDate>Tue, 15 Mar 2022 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Scalable E-Commerce Infrastructure at Nykaa]]></title>
      <link>https://www.dipankar.name/writings/building-scalable-ecommerce-infrastructure-platform-migration/</link>
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      <description><![CDATA[Dipankar Sarkar led Nykaa's platform migration from Magento to custom Python, implementing in-memory cart service and Kong API gateway for 500% traffic growth.]]></description>
      <pubDate>Wed, 15 Sep 2021 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Analytical Systems in Core Java at Tyroo]]></title>
      <link>https://www.dipankar.name/writings/building-analytical-systems-core-java-tyroo-adtech/</link>
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      <description><![CDATA[Dipankar Sarkar built analytical systems at Tyroo (India's largest AdTech company) processing 10B+ daily ad impressions using Core Java for real-time insights.]]></description>
      <pubDate>Fri, 20 Aug 2021 00:00:00 GMT</pubDate>
    </item>
    <item>
      <title><![CDATA[Enterprise Platforms: Telecom and AdTech]]></title>
      <link>https://www.dipankar.name/writings/enterprise-platform-development-telecommunications-advertising/</link>
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      <description><![CDATA[Dipankar Sarkar built Kirusa Voice SMS (250M users) and enhanced Clickable PPC platform (TechCrunch Top 50) - enterprise-scale telecommunications and advertising.]]></description>
      <pubDate>Thu, 12 Nov 2020 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Early Days at SlideShare, Before LinkedIn]]></title>
      <link>https://www.dipankar.name/writings/shaping-future-content-sharing-early-days-slideshare/</link>
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      <description><![CDATA[Dipankar Sarkar joined SlideShare as one of its first five engineers, building core features for the platform later called the "YouTube of presentations."]]></description>
      <pubDate>Fri, 07 Dec 2012 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[PHIRE: Mobile Banking at MPower Money]]></title>
      <link>https://www.dipankar.name/writings/revolutionizing-mobile-banking-phire-mpower-money-python-metaprogramming/</link>
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      <description><![CDATA[Dipankar Sarkar built PHIRE at MPower Money - the world's first mobile debit network enabling SMS-based banking for unbanked populations using Python.]]></description>
      <pubDate>Tue, 25 Sep 2012 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Early Open Source: Three Projects, 2005-2006]]></title>
      <link>https://www.dipankar.name/writings/early-career-open-source-journey-pioneering-projects/</link>
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      <description><![CDATA[Dipankar Sarkar was one of the first five Indians in Google Summer of Code 2005, building WYSIWYG XUL editor for Mozilla and NFSv4 testing frameworks.]]></description>
      <pubDate>Mon, 28 Nov 2011 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[Vision Algorithm Research at B-Core Software]]></title>
      <link>https://www.dipankar.name/writings/optimizing-vision-algorithms-research-bcore-software-tokyo/</link>
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      <description><![CDATA[Dipankar Sarkar optimized computer vision algorithms at B-Core Software Tokyo, gaining international experience in image processing and algorithm optimization.]]></description>
      <pubDate>Mon, 15 Nov 2010 00:00:00 GMT</pubDate>
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    <item>
      <title><![CDATA[A Web Service PDS Plugin for Oracle Reports]]></title>
      <link>https://www.dipankar.name/writings/innovating-oracle-reports-web-service-pds-plugin-development/</link>
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      <description><![CDATA[Dipankar Sarkar developed a Web Service PDS plugin for Oracle Reports during internship at Oracle Corporation, receiving recognition from US headquarters.]]></description>
      <pubDate>Wed, 10 Mar 2010 00:00:00 GMT</pubDate>
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