README.md
name: Sergio Martin Diaz
role: CEO @ NORTH 28 STUDIO
base: New York time — Spanish-born
status: building
about
I'm passionate about working with entrepreneurs and startups. Why? Because we breathe and feed off the same thing: improving the present.
Thirteen-plus years across digital strategy, product, and marketing. I've been the founder, the consultant, the head of digital transformation, and the guy shipping the actual thing. I hate the status quo, I learn from my mistakes (and yours), and I don't get stuck.
Specialized in strategy, but I never leave the visual side behind — design, photography, interfaces. I'm the geeky, nerdy partner who never stops looking for ways to make your project work. Without strategy there are no sales, without sales there are no profits, and without profits there is no success.
fail early, fail often,in order to succeed sooner.
experience
2026 — now
CEO & Founder @ NORTH 28 STUDIO
Founded NORTH 28 because the traditional agency model is an overpriced joke. We build digital spaces and products for brands that actually want to be remembered: digital strategy, flawless execution, brutal aesthetics. No corporate poetry.
2022 — now
CEO @ osss studio
Strategic management services out of New York. Business vision, team leadership, partnerships, and calculated risks — making sure the work that ships is work worth shipping.
2022 — 2025
Independent Consultant @ @sergiomdiaz
Strategy and digital for founders who wanted a partner, not a vendor. Vision, roadmaps, and execution under one roof.
2022
Head of Digital Transformation & Strategy @ ANP Health Services
Digital transformation strategies to drive business growth. Cross-functional teams, data-driven decisions, and digital initiatives that actually aligned with the business.
2019 — 2022
Business Apps Specialist @ Intelequia
Technical analysis, development, and deployment of business applications on Power Platform and Microsoft 365 — Dynamics, SharePoint, Teams.
2017 — 2019
Marketing Manager @ Onestic
Digital strategy launches with agile methodologies, audience research, data analysis, and brand identity for an ecommerce technology firm in Valencia.
2015 — 2019
Digital Transformation Consultant @ @sergiomdiaz
Digital maturity assessments, strategy roadmaps, and channel optimization for clients across Spain and beyond.
2015 — 2018
Founder & CEO @ Posery
My first company — born at a Google Startup Weekend and grown into a product operating nationally and internationally.
before that
Mentor, coordinator, project manager @ EOI Business School · La Orotava · Spanish Red Cross
Mentoring startups on digital strategy, coordinating programs and teams, and running 20+ commercial campaigns for local commerce.
stack
strategy
- digital strategy
- branding
- go-to-market
- growth
- market analysis
- digital transformation
product
- web development
- digital products
- visual identity
- design
- content
operations
- agile
- project management
- team leadership
- stakeholder management
platforms
- microsoft 365
- power platform
- crm
- analytics
education
- M.Sc. Project ManagementUniversidad Isabel I · 2024
- M.Sc. Team Management & LeadershipUniversidad Isabel I · 2024
certifications
- AI, Business & the Future of WorkLund University · 2022
- Designing the Future of WorkUNSW · 2021
- Agile & Lean Project ManagementFundación Telefónica · 2020
- Design ThinkingFundación Telefónica · 2019
- Inbound MarketingHubSpot · 2017
- E-Commerce & Digital MarketingUniversidad de La Laguna · 2015
languages
es — native·en — professional·ca — conversational