I don’t just “take requirements.” My clients turn to me when they need a trusted partner who can think strategically, make product decisions alongside leadership, and still execute at a high level of craft.
The difference between freelance and what I do is simple:
people don’t just tell me what to do — they ask me what I think.
What I Do
I help founders, growth-stage leaders, and enterprise teams:
- Ship smarter: turning rough ideas into prototypes and market-ready outputs.
- Align leadership: bridging product, design, and engineering when things stall.
- Reduce risk: using Agile-informed sprints to break down big bets into testable steps.
This is consulting-level partnership combined with the execution strength of a principal designer. Whether it’s building the first version of a product, creating a design system foundation, or shaping the workflows that keep a team moving, I bring both strategy and sleeves-rolled-up design.
My System: Sentinel-16
Every project I touch runs through my internal framework, Sentinel-16. It’s not a tool for clients to adopt — it’s the system I use to keep my work iterative, reflective, and outcome-focused.
Think of it as my operating engine: it ensures that what I deliver isn’t just polished design, but design grounded in learning, iteration, and the bigger picture. From journey maps to MVP prototypes, Sentinel-16 is embedded in the way I work — and clients see the benefit in faster decisions, sharper direction, and stronger outcomes.
Jonathan Martinez
Results I’m Proud Of
- $1M in funding secured for a MarTech startup by co-leading MVP delivery in just 6 weeks.
- 32% faster onboarding with zero drop-off for a job platform supporting laid-off technologists.
- $60K in revenue generated from a single consulting engagement (Driveline), proving the value of principled design leadership in action.
Beyond Freelance
Over nearly 7 years of consulting, I’ve learned that the real value isn’t in shipping pixels — it’s in helping leadership make the right calls. I bring the perspective of design, product, and systems thinking, backed by a framework that adapts to the realities of Agile work.
So whether you’re a founder trying to launch, a growth team looking to break a plateau, or an enterprise team needing to move faster — I help you trade uncertainty for momentum.
If you’re ready for a partner who brings both strategic thought and hands-on execution, I’d love to hear from you. Reach out by email, and let’s discuss your project.
