Build the right thing.
Go from idea to product — fast.
I help you validate and build your product idea before committing to building it at scale. Using modern development tools and a decade of experience in AI, data science, and product leadership, I turn ideas into working prototypes and MVPs in weeks instead of months.
What I bring
Technical Scoping & Validation
I help you define what to build, how to build it, and why. This means fewer wrong turns, clearer priorities, and a product that actually solves the problem you set out to solve.
Hands-On Development
I build functional products using modern development tools and AI-assisted coding, which means you get production-quality output at a speed that used to require a full team.
Product Thinking Built In
Every technical decision is made with the product in mind. Having led product development and AI teams, my focus is not just tech, but products that customers will actually want to use.
How does this work?
Focused sprints, clear outcomes.
Discovery Call
30 minutes. You tell me what you're trying to build and why. I'll tell you honestly whether I can help and what the engagement would look like.
Scoping & Agreement
I define the deliverables, timeline, and cost. No ambiguity about what you're paying for. We agree on milestones and check-in points.
Build
I work in short, visible cycles. You see progress regularly, not just at the end. Architecture decisions are documented so you're never locked in to me.
Deliver & Hand Off
You get working code, documentation, and a clear picture of next steps. The product is yours, no strings attached.
Engagement formats
Flexible structure, consistent quality.
Sprint-based projects
Defined scope, fixed timeline, clear deliverables. Typically 2–8 weeks. Best for MVPs, prototypes, and product validation.
Ongoing advisory
Part-time, embedded product and technical leadership for companies building internal capability. Weekly or biweekly involvement.
Technical due diligence
Independent assessment of a product, codebase, or technical strategy — for investors, boards, or leadership teams evaluating a build-or-buy decision.
Saga Úlfarsdóttir
Founder of Sasú
Product leadership and technical execution in one.
I'm Saga Úlfarsdóttir, founder of Sasú. I have 10+ years in data science, AI, and product development — formerly Head of Product and Head of AI Development. I've taken products from zero to production and managed the teams that maintain them.
I scope and I build. Most consultants hand you a recommendation. I hand you a working product.

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Let's talk
If you have a product idea, a technical challenge, or a prototype that needs to exist — book a discovery call below.
In this 30-minute call, we will:
- ✓ Discuss your product vision and constraints
- ✓ Do a quick technical feasibility check
- ✓ Define clear next steps, whether you hire me or not
Book your slot now
My calendar is open for 30-minute discovery calls.