Zero Day Engineering
Zero Day Engineering is the art of seeing constraints as possibility, and architecting systems from uncertainty. We don’t hunt for bugs; we identify ontological blind spots in computation and model how control emerges from breakage. We don’t develop exploits; we collapse potential into structure, bypassing limits through redirected execution logic. A zero-day is not just a coding error, it’s a signal which marks the way of power. This is not a skillset. It’s a mindset: a way of thinking beyond systems, and achieving the impossible.
What began as individual hacker obsession now moves global policy. Exploit capability is no longer fringe — it is a strategic resource leveraged by corporations, governments, and independent operators alike. Yet most participants act tactically, reacting to media outbreaks and publicly exposed attack vectors. At Zero Day Engineering, we design cognitive and operational frameworks which contain exploit as a side effect. This is where research stops being a craft and starts becoming an operating system.
Alisa Esage Shevchenko is a globally recognized cybersecurity icon, entrepreneur, and elite hacker — most famously known as the first-ever female participant in Pwn2Own, the world’s premiere hacking competition. But long before that historic win, Alisa had already made headlines as a formidable technological force. In 2016, her company’s security research drew direct international government action — a pivotal moment that propelled her onto the world stage as a leading authority in offensive security, with her story featured on the front pages of The Guardian and The New York Times. Self-taught in hacking since age 15, Alisa’s obsession with low-level systems, CPU internals, and reverse engineering has led her to uncover critical vulnerabilities in software used by millions. Her discoveries have been recognized by leading software & hardware companies, CISA & CERTs, and global media — and have earned her lasting respect within the elite security research community. In 2019, Alisa established Zero Day Engineering to package her expertise as a structured, no-fluff intelligence system — one that enables professional security researchers to tackle the deepest, most complex topics in the field. Today, she continues to operate at the bleeding edge of exploit design, combining technical precision, strategic vision, and a reputation that governments couldn’t ignore. Work with us
At Zero Day Engineering, key principle is to see the root system. All knowledge — technical, ontological, or social — builds on core structures. Tracing these structures to origin removes surface noise and reveals the logic that governs complex systems – and predicts the patterns in their unfolding. This principle gives our frameworks scope without dilution, and depth without myopia. It allows us to solve hard problems with elegant models, and move effortlessly across domains that others treat as boundaries.
From this foundation, we build for universality. Knowledge, skills, and tools are engineered to apply across the field, not to a single platform or target. Progress in one domain raises capability everywhere – automatically. We operate from first principles. Every system is reduced to its base rules. With that, techniques need not be learned; they are easily generated. This removes dependence on external sources and enables full-stack control. Abstract models are our primary assets. In the industry that worships practical wins, we build theoretical frameworks that predict failure modes of entire system classes - and use them to deliver next level practical wins. Universality, first principles, and foundational models define our work. The outcome is transferable, resilient knowledge that moves big technology.