https://diogomserino.github.io/ Visual breakdowns of product strategy, analytics, and business fundamentals by Diogo Serino, Product Manager & Builder. en https://diogomserino.github.io/articles/how-i-built-careermatch.html https://diogomserino.github.io/articles/how-i-built-careermatch.html The full story of building TryCareerMatch, from a client-side prototype to a full-stack app: the problem, the scoring engine, the UX trade-offs, and the rebuild. https://diogomserino.github.io/articles/how-i-built-portugal-data-intelligence.html https://diogomserino.github.io/articles/how-i-built-portugal-data-intelligence.html The build story of Portugal Data Intelligence, a 12-pillar macro platform: the ETL pipeline, the forecasting layer, and the leap to an advisory-grade briefing. https://diogomserino.github.io/articles/how-i-build-with-ai.html https://diogomserino.github.io/articles/how-i-build-with-ai.html How I use AI to build products faster (research, scaffolding, data, debugging) and why I keep the shipped product deterministic, with no LLM in the decisions. https://diogomserino.github.io/articles/cafe-nova-margin-collapse.html https://diogomserino.github.io/articles/cafe-nova-margin-collapse.html A 30-minute management-consulting case, worked end to end: why a Portuguese coffee chain's operating margin fell from 25% to 7% after rapid expansion, and the recommendations. https://diogomserino.github.io/articles/analyst-to-pm.html https://diogomserino.github.io/articles/analyst-to-pm.html What the transition from Financial Analyst to Product Manager actually looks like, what transfers, what doesn't, and how building TryCareerMatch proved it was possible. https://diogomserino.github.io/articles/design-background-pm.html https://diogomserino.github.io/articles/design-background-pm.html What a design background actually contributes to product management, from the real advantages to the blind spots and the habits that took years to unlearn. https://diogomserino.github.io/articles/bi-fundamentals.html https://diogomserino.github.io/articles/bi-fundamentals.html From raw tables to business insight: a breakdown of data modeling, DAX, SQL, and the KPIs that drive decisions in finance and HR. https://diogomserino.github.io/articles/agile-scrum-fundamentals.html https://diogomserino.github.io/articles/agile-scrum-fundamentals.html What Agile really means, how Scrum works in practice, the roles, events, and artifacts that make teams ship faster, and the metrics that prove it. https://diogomserino.github.io/articles/saas-product-metrics.html https://diogomserino.github.io/articles/saas-product-metrics.html The metrics that define SaaS and product success: DAU/MAU, retention, churn, MRR, CAC, LTV, and how to choose the right ones for your product stage. https://diogomserino.github.io/articles/ab-testing-fundamentals.html https://diogomserino.github.io/articles/ab-testing-fundamentals.html How to design valid experiments, interpret statistical significance, avoid the most common testing mistakes, and build a culture of evidence-based decisions. https://diogomserino.github.io/articles/prioritization-frameworks.html https://diogomserino.github.io/articles/prioritization-frameworks.html How to decide what gets built first: RICE, ICE, MoSCoW, Kano, and Opportunity Scoring explained with examples and a guide on when to use each. https://diogomserino.github.io/articles/product-roadmapping.html https://diogomserino.github.io/articles/product-roadmapping.html How to build a product roadmap: types, inputs, stakeholder management, how to say no gracefully, and the anti-patterns that destroy team trust. https://diogomserino.github.io/articles/north-star-metric.html https://diogomserino.github.io/articles/north-star-metric.html What a North Star Metric is, why it matters, how to choose one, and real examples from Spotify, Airbnb, Slack, and Facebook. https://diogomserino.github.io/articles/okrs-kpis.html https://diogomserino.github.io/articles/okrs-kpis.html How Objectives & Key Results and KPIs work together: setting direction, measuring outcomes, avoiding vanity metrics, and building a culture of accountability. https://diogomserino.github.io/articles/product-discovery-user-research.html https://diogomserino.github.io/articles/product-discovery-user-research.html How to run user interviews, build personas, map empathy, apply Jobs-to-be-Done, and validate hypotheses before building, so you stop shipping what nobody uses. https://diogomserino.github.io/articles/product-management-fundamentals.html https://diogomserino.github.io/articles/product-management-fundamentals.html What PMs actually do, how the role differs from PO and BA, the product lifecycle, prioritization frameworks, and the metrics that define product success. https://diogomserino.github.io/articles/business-model-canvas.html https://diogomserino.github.io/articles/business-model-canvas.html How to map, analyse, and stress-test any business using the 9 building blocks of the Business Model Canvas: from value proposition to revenue streams. https://diogomserino.github.io/articles/strategy-frameworks.html https://diogomserino.github.io/articles/strategy-frameworks.html How to use SWOT, Porter's Five Forces, and PESTEL to analyse competitive position, industry structure, and macro environment, and when to use each. https://diogomserino.github.io/articles/project-management-fundamentals.html https://diogomserino.github.io/articles/project-management-fundamentals.html The two schools of project management (PMI/PMBOK and Agile): how each works, when to apply them, and how hybrid approaches are used in practice. https://diogomserino.github.io/articles/go-to-market-strategy.html https://diogomserino.github.io/articles/go-to-market-strategy.html How to launch a product or service: defining your ICP, positioning, channel strategy, and the metrics that tell you whether your GTM is working. https://diogomserino.github.io/articles/growth-hacking-fundamentals.html https://diogomserino.github.io/articles/growth-hacking-fundamentals.html The AARRR framework, growth loops, key acquisition and retention tactics, and the metrics that separate real growth from vanity numbers. https://diogomserino.github.io/articles/design-thinking-fundamentals.html https://diogomserino.github.io/articles/design-thinking-fundamentals.html How to solve complex problems by starting with people: the five stages of Design Thinking, from deep empathy to tested prototypes. https://diogomserino.github.io/articles/communication-storytelling.html https://diogomserino.github.io/articles/communication-storytelling.html How to structure executive presentations, write for busy stakeholders, tell stories with data, and communicate across different audiences. https://diogomserino.github.io/articles/digital-marketing-fundamentals.html https://diogomserino.github.io/articles/digital-marketing-fundamentals.html SEO, SEM, email marketing, and conversion funnels: how digital marketing channels work, how to measure them, and how they connect into a coherent acquisition system. https://diogomserino.github.io/articles/startup-funding.html https://diogomserino.github.io/articles/startup-funding.html Pre-seed, seed, Series A: how startup funding rounds work, what investors look for, the difference between angels and VCs, and how to think about your cap table. https://diogomserino.github.io/articles/what-is-economics.html https://diogomserino.github.io/articles/what-is-economics.html A visual guide to how the economy actually works: economic players, the circular flow, the role of banks and government, and macroeconomic fundamentals. https://diogomserino.github.io/articles/esg-sustainability.html https://diogomserino.github.io/articles/esg-sustainability.html Environmental, Social, and Governance: what ESG means for modern managers, how reporting frameworks work, and how sustainability is reshaping business strategy. https://diogomserino.github.io/articles/aml-kyc.html https://diogomserino.github.io/articles/aml-kyc.html How banks detect and prevent financial crime: AML, KYC, sanctions screening, transaction monitoring, fraud, risk, and beneficial ownership. https://diogomserino.github.io/articles/fund-governance-fundamentals.html https://diogomserino.github.io/articles/fund-governance-fundamentals.html How fund managers, ManCos, and depositaries keep billions in compliance: UCITS, AIFMD, NAV reconciliation, and the daily workflows of a fund Business Analyst.