Notes on building software, systems and teams. Articles on AI-augmented engineering, search, and technical leadership.https://www.sebastiansigl.com/https://www.sebastiansigl.com/blog/5-advanced-chatgpt-prompt-techniques-every-passionate-software-developer-should-know/https://www.sebastiansigl.com/blog/5-advanced-chatgpt-prompt-techniques-every-passionate-software-developer-should-know/Get ahead in your career and business by using ChatGPT's advanced prompt techniques, including generating tables, controlling creativity with temperature settings, simulating an expert, creating unique business ideas, and explaining complex concepts in simple language.Fri, 28 Apr 2023 00:00:00 GMThttps://www.sebastiansigl.com/blog/the-power-of-self-reflection-5-habits-for-successful-developers/https://www.sebastiansigl.com/blog/the-power-of-self-reflection-5-habits-for-successful-developers/Self-reflection is the most important habit for success. Five habits for self-assessment to help developers continuously grow and succeed.Wed, 19 Apr 2023 00:00:00 GMThttps://www.sebastiansigl.com/blog/13-free-and-stunning-resources-to-master-data-engineering/https://www.sebastiansigl.com/blog/13-free-and-stunning-resources-to-master-data-engineering/Become a data-engineer in only one year and learn the basics of Python, SQL, Git, Linux, NoSQL, Big Data with Spark and Hadoop, AWS Cloud, DBT, Airflow and Kafka.Sat, 22 Apr 2023 00:00:00 GMThttps://www.sebastiansigl.com/blog/beyond-autocomplete-agentic-coding-1/https://www.sebastiansigl.com/blog/beyond-autocomplete-agentic-coding-1/Exploring the paradigm shift from AI-assisted coding to agentic coding - where AI agents can handle complex, multi-step development tasks with significant autonomy.Mon, 02 Jun 2025 00:00:00 GMThttps://www.sebastiansigl.com/blog/bounded-contexts-cognitive-boundaries-ai-humans/https://www.sebastiansigl.com/blog/bounded-contexts-cognitive-boundaries-ai-humans/Explores how bounded contexts from Domain-Driven Design serve as cognitive boundaries that improve signal-to-noise ratio for both humans and LLMs, making AI-assisted coding more reliable and reducing complexity in modern software development.Tue, 03 Feb 2026 00:00:00 GMThttps://www.sebastiansigl.com/blog/high-performing-teams-focus-on-these-4-areas-to-remain-successful/https://www.sebastiansigl.com/blog/high-performing-teams-focus-on-these-4-areas-to-remain-successful/High-performing teams often seem to operate seamlessly, navigating challenges such as tight deadlines or resource limitations while consistently delivering exceptional results. Efficient teams in project-based industries are 2.5 times more likely to meet quality standards and operate with 19% improvement in productivity.Wed, 01 Jan 2025 00:00:00 GMThttps://www.sebastiansigl.com/blog/why-teams-fail-ai-coding-strategies-that-work/https://www.sebastiansigl.com/blog/why-teams-fail-ai-coding-strategies-that-work/Most AI coding implementations fail because teams choose the wrong approach for their context. Here's how to pick the strategy that will actually give you a competitive advantage.Sat, 12 Jul 2025 00:00:00 GMThttps://www.sebastiansigl.com/blog/rebuilding-search-lessons-learned/https://www.sebastiansigl.com/blog/rebuilding-search-lessons-learned/A seasoned engineer's lessons from a year rebuilding a search system from the ground up, shifting from engineering-first to product-first thinking.Sat, 11 Oct 2025 00:00:00 GMThttps://www.sebastiansigl.com/blog/llm-judge-biases-and-how-to-fix-them/https://www.sebastiansigl.com/blog/llm-judge-biases-and-how-to-fix-them/Your LLM-as-a-Judge system might be lying to you. This post uncovers 5 critical biases like positional, verbosity, and moderation bias that silently corrupt your AI evaluations, leading to poor product decisions. Learn practical, actionable fixes to build a resilient evaluation framework you can actually trust.Fri, 19 Sep 2025 00:00:00 GMThttps://www.sebastiansigl.com/blog/event-sourcing-simplified/https://www.sebastiansigl.com/blog/event-sourcing-simplified/A guide to processing real-world events in applications, with practical steps, strategies, and real-world examples. Elevate your system's resilience and adaptability.Thu, 01 Feb 2024 00:00:00 GMThttps://www.sebastiansigl.com/blog/mastering-array-access-in-javascript-a-comprehensive-guide/https://www.sebastiansigl.com/blog/mastering-array-access-in-javascript-a-comprehensive-guide/Learn accessing, searching and mutating array elements and gain essential knowledge to master array handling in JavaScript.Tue, 02 May 2023 00:00:00 GMThttps://www.sebastiansigl.com/blog/your-comprehensive-guide-to-mastering-cloud-architecture-acing-the-aws-solution-architect-associate-exam/https://www.sebastiansigl.com/blog/your-comprehensive-guide-to-mastering-cloud-architecture-acing-the-aws-solution-architect-associate-exam/Unlock the secrets to mastering cloud computing fundamentals with this comprehensive guide. From understanding key AWS components to hands-on training, the content is designed to refine knowledge and offer critical insights for exam preparation.Sat, 07 Oct 2023 00:00:00 GMThttps://www.sebastiansigl.com/blog/mcp-servers-context-cost/https://www.sebastiansigl.com/blog/mcp-servers-context-cost/Some tools require MCP. Most don't. Here's how to tell the difference, scope servers per project, and avoid the context tax that degrades your agent's reasoning.Fri, 20 Mar 2026 00:00:00 GMThttps://www.sebastiansigl.com/blog/mastering-virtual-meetings-in-remote-work-from-meeting-madness-to-productive-paradise/https://www.sebastiansigl.com/blog/mastering-virtual-meetings-in-remote-work-from-meeting-madness-to-productive-paradise/Strategies for optimizing virtual meetings in a remote work environment focus on balancing various types of meetings and personalizing schedules to individual work rhythms.Sat, 01 Jul 2023 00:00:00 GMThttps://www.sebastiansigl.com/blog/search-evolution-ladder-0-measure-before-you-rank/https://www.sebastiansigl.com/blog/search-evolution-ladder-0-measure-before-you-rank/Before you improve search, you need to know what good results look like. Here's how to define relevance, calculate NDCG and find the queries that get worse even when the average improves.Sat, 26 Sep 2026 00:00:00 GMThttps://www.sebastiansigl.com/blog/type-safe-python-tests-in-the-age-of-ai/https://www.sebastiansigl.com/blog/type-safe-python-tests-in-the-age-of-ai/AI coding assistants are accelerating development—but also magnifying quality risks. Here’s how to write Python tests that survive refactors, scale with your codebase, and tame the chaos of augmented coding.Sun, 10 Aug 2025 00:00:00 GMThttps://www.sebastiansigl.com/blog/understanding-coupling-in-software-development/https://www.sebastiansigl.com/blog/understanding-coupling-in-software-development/Explores the concept of coupling in software development, its various forms, practical implications, and strategies to balance coupling and decoupling for better system architecture and maintainability.Fri, 24 May 2024 00:00:00 GMThttps://www.sebastiansigl.com/blog/systems-thinking-in-software-engineering/https://www.sebastiansigl.com/blog/systems-thinking-in-software-engineering/Stop firefighting software issues and start understanding the underlying system dynamics through Systems Thinking. This post introduces models like the "technical debt bathtub" and key leverage points to improve flow, stability, and team performance. Build better software, faster and more reliably, by focusing on systemic health.Sun, 13 Apr 2025 00:00:00 GMThttps://www.sebastiansigl.com/blog/separating-decision-gathering-from-decision-making/https://www.sebastiansigl.com/blog/separating-decision-gathering-from-decision-making/Separating decision gathering from decision making enhances agility by allowing teams to collect diverse input without being slowed by the need for consensus. Empowering individuals to make informed decisions based on collective insights fosters innovation and swift progress in tech environments.Sun, 20 Oct 2024 00:00:00 GMT