Your vision.Our obsession.

Onezero Labs is a product design and engineering studio. We design and build custom software, iOS and Android apps, web platforms and internal systems, and we integrate AI — agents, RAG, MCP and process automation — into products and operations. One senior team handles product, design, engineering, QA and DevOps from the first spec to production and beyond.

Startups building their first product, scale-ups that need a full engineering team from day one, and established companies modernizing systems or adding AI to what they already run. Leadership is based in Miami; we work with U.S. and international companies in English, inside your tools, with a single point of contact.

Both. A fixed-scope project fits when the product is defined and you want a price and a date. An embedded team (engineering, product, design, DevOps) fits when the roadmap keeps moving. Many clients start with a scoped MVP and continue with a team; our guide 'Project vs. development team' explains how to choose.

Included. Every project ships against WCAG 2.2 AA (the standard behind ADA Title III and Section 508 expectations), green Core Web Vitals on mobile, and OWASP-based security practices. If you need a formal audit, SOC 2 or HIPAA-aligned controls, that becomes an explicit part of the scope.

Yes — that is most of our AI work. We start with a short pilot on one real use case, connect the model to your data and tools with a human in the loop, measure the result, and only then widen the scope. We also rescue AI-generated ('vibe-coded') codebases that stopped working.

Send a few lines about the product or the problem. Within a short call we tell you which engagement fits, what a first phase looks like and what we need from you. If a requirements document helps, our free template is on the blog.