Author profile
Daniel Killyevo
Founder & Technical Lead
Daniel Killyevo started Design Key with a vision to empower businesses with cutting-edge technology and tailor-made solutions. After years of experience in the tech industry, Daniel recognized the gap between clients' needs and available services. This realization led to the creation of Design Key, an agency that would bridge the divide and help clients achieve their goals with better-designed products.
Daniel is an accomplished technical leader with a Master's degree in Computer Science from Poltava National Technical University (2005-2011). Born to a Ukrainian mother and Tanzanian father in Tanzania and raised in Ukraine, he brings a unique global perspective to his work.
With more than 15 years of experience in software development and product design, Daniel has successfully delivered more than 50 web and mobile applications. He began his career as a software developer and went on to work with prominent companies such as Ciklum, Corrigo (Terminix), and JustEat, helping build more than 40 prototypes and MVPs for startups.
His expertise includes architecting complex cloud-based software solutions, API and data integrations, and building and scaling tech teams. As a seasoned entrepreneur, Daniel has gained invaluable experience working on personal startups and establishing two software agencies.
Articles
Written by Daniel
Business
AI Integration for Business: 2026 Guide
AI integration in 2026 is no longer 'should we' - it is 'where, in what order, and at what budget.' This is the complete practitioner's guide: the four layers of the modern stack, the seven use cases that pay back, the readiness checklist, and the pitfalls that quietly kill projects.
Read articleDevelopment
Memory and Context for Production AI Agents
Agents that worked great in demos die in production for the same reason: their memory is wrong. Here is the working 2026 model for ai agent memory management - three layers, four patterns, and the Anthropic code-execution trick that cut one canonical workload by 98.7%.
Read articleWant to work with Daniel and the Design Key team?
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