Open to early-stage & founding roles · Remote · Worldwide
Diogo
Serino
Builder & generalist product, data & strategy · shipped end-to-end
I take things from an idea to something people can use, across product, data and strategy. A background in financial analytics and seven years of design let me move from data model to interface without hand-offs. Doing a bit of everything is the point, not a confusion.
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Work
Projects
Selected work in product and analytics, built from idea to launch.
Case Study · Product
TryCareerMatch
A free, no-signup career-discovery platform I built end-to-end. It's a full-stack app (Next.js, FastAPI, PostgreSQL) that maps 125+ skills to 85+ roles across 10 sectors with a server-side scoring engine.
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Analytics · Data Engineering
Portugal Data Intelligence
A macroeconomic analytics platform covering Portugal's economy (2010–2025), built with Power BI dashboards, a Python/FastAPI backend, and SARIMAX forecasting.
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About
Data, design, and product
in one generalist
I'm a generalist who builds and measures. I conceived and shipped TryCareerMatch from discovery and data model to UX and deployment. It's a free, no-signup career-discovery platform that maps 125+ skills to 85+ roles across 10 sectors.
As a Financial & Data Analyst at Grupo Alexandre Barbosa Borges, I didn't just read dashboards. I built them. Power BI, Python, SQL and KPI frameworks across a multi-company group, where my dashboards replaced manual reports and became the primary tool for investment decisions.
Seven years of design give me a UX instinct and fast prototyping. I'm looking for an early-stage or founding role, remote and open anywhere in the world, where building, data, and design aren't separate departments but one mindset.
My full backgroundProduct Ownership
Built TryCareerMatch from zero to launch, covering discovery, data model, UX, and deployment. Full product lifecycle, independently.
Data-Driven by Default
Power BI, Python, SQL. I build the metrics infrastructure myself, so product decisions stay grounded in data.
Design Intuition
7 years designing for clients means I prototype fast, work well with designers instead of talking past them, and ship things that look right.
Systems Thinking
Financial analysis at multi-company level taught me how decisions cascade, from data model to board report. I connect product, finance, and strategy.
Writing
Articles
Visual breakdowns of product strategy, analytics, and business fundamentals, built to be clear, not complex.
Product
How I Built TryCareerMatch
A behind-the-scenes look at building TryCareerMatch, from the scoring engine and the full-stack rebuild to the UX trade-offs and launch.
9 min read
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Data
How I Built Portugal Data Intelligence
The build story behind a 12-pillar macroeconomic platform: the ingestion and data-quality pipeline, the forecasting layer, and the jump from charts to an advisory-grade briefing.
9 min read
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Product
How I Build with AI
Where I let AI touch the work and where I deliberately don't, and why I keep the shipped product deterministic, with no LLM in the decisions. Concrete examples from both case studies.
7 min read
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Case Study
Café Nova: A Margin Collapse
A 30-minute consulting case, worked end to end: why a Portuguese coffee chain's margin fell from 25% to 7% after rapid expansion, and what I'd do about it.
11 min read
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Career
From Financial Analyst to Product Manager
What the transition actually looks like, what transfers, what doesn't, and why building something yourself is the only honest proof.
8 min read
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Career
What 7 Years of Design Gave Me as a PM
The specific instincts a design background builds, where they're genuinely useful in product work, and the one habit I had to unlearn completely.
7 min read
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Analytics
BI Analytics Fundamentals
From raw tables to business insight: a breakdown of Star Schema data modeling, DAX measures, SQL patterns, and the Finance and HR KPIs that drive real decisions.
8 min read
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Agile
Agile & Scrum Fundamentals
What Agile really means, how Scrum works in practice, the roles and events that make teams ship faster, and the metrics that prove it.
7 min read
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Product
SaaS & Product Metrics
The metrics that actually matter: DAU/MAU, retention curves, MRR components, CAC, LTV, and how to choose the right ones for your product stage.
8 min read
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Data
A/B Testing & Experimentation
How to design valid experiments, interpret statistical significance, and build a culture of evidence-based decisions, not gut feel.
7 min read
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Product
Prioritization in Practice
RICE, ICE, MoSCoW, Kano, and Opportunity Scoring: how each framework works, when to use it, and a side-by-side comparison.
7 min read
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Product
Product Roadmapping
What a roadmap is (and isn't), the three main types, how to build one, saying no gracefully, and the anti-patterns that sink most roadmaps.
7 min read
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Product
North Star Metric
What makes a good North Star Metric, how to choose one, real examples from Spotify, Airbnb, and Slack, and how it fits with OKRs and KPIs.
6 min read
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Strategy
OKRs & KPIs
How to set meaningful goals, measure the right outcomes, and build a culture where everyone knows what success looks like, and why vanity metrics are a trap.
7 min read
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Research
Product Discovery & User Research
How to run interviews, build personas, apply Jobs-to-be-Done, and validate hypotheses before building, so you stop shipping what nobody uses.
7 min read
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Product
Product Management Fundamentals
What PMs actually do, how the role differs from PO and BA, the product lifecycle, prioritization frameworks, and the metrics that define product success.
8 min read
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Strategy
Business Model Canvas
How to map, analyse, and stress-test a business model: from value propositions and customer segments to revenue streams, cost structure, and strategic misalignments.
6 min read
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Strategy
Strategy Frameworks
SWOT, Porter's Five Forces, and PESTEL: how to analyse competitive position, industry structure, and macro environment, and when to use each.
6 min read
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Management
Project Management Fundamentals
PMI/PMBOK vs Agile: the two schools of project management, when to apply each, and how hybrid approaches work in practice.
7 min read
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Launch
Go-to-Market Strategy
How to launch a product. Define your ICP, position against alternatives, choose your channels, and measure whether it's working.
6 min read
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Growth
Growth Hacking Fundamentals
The AARRR framework, growth loops, and the metrics that separate real traction from vanity numbers. Essential for Growth Manager and Growth Analyst roles.
7 min read
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Design
Design Thinking Fundamentals
The five-stage human-centred design process, from deep empathy and problem definition to ideation, prototyping, and iterative testing.
6 min read
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Leadership
Communication & Storytelling
Executive presentations, data storytelling, stakeholder communication: the skills that separate good managers from great ones.
6 min read
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Marketing
Digital Marketing Fundamentals
SEO, SEM, email marketing, and conversion funnels: how digital channels work and how they connect into a coherent acquisition system.
7 min read
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Venture
Startup Funding
Pre-seed to Series A: how funding rounds work, what investors look for, the difference between angels and VCs, and how equity gets divided.
6 min read
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Economics
Economics Fundamentals
A visual guide to how the economy actually works, from the four economic players to macroeconomic fundamentals and what indicators actually measure national health.
8 min read
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ESG
ESG & Sustainability
Environmental, Social, Governance: what ESG means for modern managers, how reporting frameworks work, and how sustainability reshapes strategy.
6 min read
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Compliance
AML, KYC & Financial Crime Fundamentals
How banks detect and prevent financial crime: Anti-Money Laundering, Know Your Customer, sanctions screening, transaction monitoring, fraud types, and beneficial ownership.
9 min read
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Compliance
Investment Fund Governance Fundamentals
How ManCos, depositaries, and fund administrators keep billions in compliance: UCITS, AIFMD, NAV reconciliation, KYC screening, and the workflows of a fund Business Analyst.
9 min read
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Get in touch
Let's talk
I'm open to early-stage and founding roles, remote anywhere in the world (and happy to relocate for the right team). If you're building something interesting, I'd love to hear from you.
Available now · Remote · Worldwide