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About D8

We don't reinvent the wheel. We combine the ones already spinning to move something that never could before.

D8 is a product engineering startup. We scan industries where existing solutions are fragmented, overpriced, or simply missing. We build what should exist. Our own products and client work are held to the same standard: if it ships from D8, it works.

We operate across R&D, hardware and embedded systems, web and app development, and AI, in one team, without the handoffs or coordination overhead of managing multiple vendors. Most projects touch more than one domain. That's by design.

The name is the philosophy: D8 is Day 8. After the seven days of creation, Day 8 is when humans start building on what already exists: not reinventing, but synthesizing and advancing. That's how we work.

The founders

The engineers behind the D8 Standard.

Nadir Alfaro
Founder

Nadir Alfaro

Mechatronics engineer from the Instituto TecnolĂłgico de Costa Rica. Defended a robotics thesis at TUM's ICS lab in Munich, then continued research across MEMS and NEMS groups at the same university. In the United States, he joined Amazon's automation division, building and commissioning large-scale conveyor systems for supply centers from the ground up. Those years abroad answered a question he hadn't fully formed: if a Costa Rican engineer can operate at that level out there, the talent was never the problem. D8 is what happens when you stop sending it elsewhere and start investing in ourselves.

Photo soon
Co-Founder

Fernando Montero

Full profile coming soon.

Associate

This could be you.

At D8 we don't hire employees — we invite associates. People who understand the D8 philosophy and want to keep advancing it. The deal is simple: if we do well, you do well. If you do well, we do well. There are no founder privileges here. We're all at the same level. What matters is what you build.

Transit revenue collection system

Custom-built hardware unit for automated fare collection on a bus fleet, paired with an operations platform for route tracking, revenue aggregation, and financial reporting. End-to-end: enclosure design, embedded firmware, and cloud backend.

ESP32ReactCloud

Personal services booking platform

Multi-tenant SaaS for independent service operators: appointment scheduling, recurring client benefits, product and service catalogs, and a local discovery network connecting clients to nearby businesses.

Next.jsTypeScriptPostgreSQL

Residential community management platform

Full-featured platform for gated communities covering payment management, amenity reservations, visitor access control, and resident communications, all under one multi-tenant architecture.

Next.jsMulti-tenantPostgreSQL

Regulatory filing automation bot

Automation system that aggregates client financial data and populates tax declarations and regulatory filings. Sold to accounting firms to eliminate repetitive document workflows across large client portfolios.

PythonAutomationFastAPI

Padel court scoring system

Sensor hardware mounted on court walls paired with real-time scoring software. Supports casual play, league modes, and pozos rotations across a full club's court inventory.

ESP32ReactIoT
Work with us

Have something to build?

We work with companies who need a technical partner, not just a vendor. If you have a hard problem, we're interested.