A mature product engineering engagement covers five phases: Discovery (defining the problem, the user, and the constraints), Architecture & Design (making the structural decisions that are expensive to reverse), Development (building iteratively with continuous integration), Quality Assurance (validating function, performance, security, and accessibility), and Deployment & Scaling (shipping to production and building the infrastructure to grow). Each phase feeds the next — skipping or rushing any one creates technical debt and delivery risk that compounds over time.
The most expensive engineering decisions are the ones made implicitly in the first two weeks. Architecture choices around data models, API contracts, authentication patterns, and deployment infrastructure are cheapest to get right at the start and most expensive to change later. TFT’s product lifecycle process includes a formal Architecture Review before any code is written — producing a decision record that your team owns and that survives engineering turnover. We treat documentation as a first-class deliverable, not an afterthought.