Andreos Klering
Product Engineering Leader & Builder
Andreos Klering
Product Engineering Leader & Builder
I help engineering organizations build better—faster cycles, clearer decisions, cultures that actually ship. 20 years of building products, teams, and systems across fintech, SaaS, and payments.
The game is changing. AI is collapsing build cycles from months to days. What used to be expensive is now cheap. The bottleneck has shifted from "can we build this?" to "should we?" I help teams navigate that shift.
Currently leading engineering at Nexar. Two-time founder. Builder at heart. Navigator of the AI transformation.
What I Believe
Simplicity is sophistication
The simpler the solution, the more powerful it becomes. Complexity feels smart but scales poorly.
Impact over output
Success isn't activity—it's outcomes. What changed because we built this?
Incentives drive outcomes
Systems create the behavior they reward. When something isn't working, look at the incentives.
AI is a paradigm shift
Not another tool—a transformation in how we build, lead, and create value. The future is human with AI.
I co-run DOIS with Thiago, where we publish experiments, notes, and opinions on engineering and building products.
What I Believe
Simplicity is sophistication
Impact over output
Incentives drive outcomes
AI is a paradigm shift
Location
Portugal
Focus
Fintech · SaaS · Scale-ups
Builder at heart. AI-first leader. Ships things that matter.
Location
Portugal
Current role
Head of Engineering @ Nexar
Focus areas
Fintech · SaaS · Payments · Scale-ups
What I care about
- → AI-driven engineering cultures
- → Autonomy with accountability
- → Outcomes over output
- → Simplicity at scale