Notes from building software in Sukabumi, for the people deciding what to build and the people building it.
AI Costs
Strategizing AI spend in a world of token-based pricing. Discusses prompt engineering for efficiency, choosing between small vs. large models, and implementing guardrails to prevent runaway AI costs. Covers token monitoring, cost attribution, model selection trade-offs, caching strategies, rate-limiting, and ROI measurement frameworks for sustainable AI deployment.
Enterprise Architecture
Introduces Architecture Decision Records as a lightweight practice for documenting significant architectural decisions. Discusses ADR structure, when to create them, maintaining decision history, and using ADRs to onboard engineers and prevent revisiting settled debates.
Generative AI
Advanced Retrieval-Augmented Generation (RAG) patterns for high-performance enterprise applications. Focuses on document ingestion pipelines, vector database optimization, and hybrid search to ensure AI accuracy and scalability. Covers chunking strategies, vector database selection, hybrid search optimization, multi-stage reranking, real-time updates, and RAGAS evaluation metrics for production-grade systems.
AI Governance
Establish a robust governance framework for GenAI within the enterprise. Covers policy development, risk assessment (hallucinations, bias, data leakage), and organizational structures for AI oversight. Discusses lifecycle governance, security and ethical risk mitigation, AI Centers of Excellence, role-based access controls, continuous monitoring, and strategic alignment.
Web Application Architecture
Comprehensive guide to building scalable web applications through proven architecture patterns. Covers monolithic vs microservices approaches, database scaling strategies, caching mechanisms, load balancing, and infrastructure optimization enabling sustainable growth from hundreds to millions of users.
Product Management
Systematic approach to gathering and analyzing competitive intelligence for product managers. Covers competitive monitoring frameworks, feature comparison methodologies, market positioning analysis, win/loss analysis techniques, anticipating competitive moves, and balancing competitive response with product vision to maintain strategic focus.
Product Management
A comprehensive guide to mapping the complete B2B customer journey from awareness through renewal and advocacy. Shows how to identify pain points, moments of truth, and opportunities for product improvements that drive retention and expansion. Includes stakeholder mapping, touchpoint analysis, pain point discovery, and measurement frameworks for continuous journey optimization.
Enterprise Architecture
Modern approaches to enterprise integration including event-driven architecture, API gateways, message brokers, and integration platforms. Discusses choosing appropriate patterns for different integration scenarios, comparing message brokers, selecting API gateways, implementing error handling and retry strategies that ensure reliable distributed communication.
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