Endava uses Codex to scale senior engineering expertise

Endava, a global software contractor, has transformed how it delivers projects by integrating Codex across its entire workflow. The company now calls itself an ‘agentic organization,’ where senior expertise is encoded into AI agents that guide teams from client intake to delivery. This shift has reduced requirements analysis from weeks to hours and allowed small teams to produce massive value quickly. Senior architects like Joe Dunleavy and Mike Krolnik say Codex democratizes expert knowledge: junior devs can now handle tasks normally reserved for seniors, with Codex offering real-time guidance on best practices and architecture. The AI acts as a persistent mentor, codifying years of experience so it can advise multiple teams in parallel. Instead of sequential handoffs between specialists, Endava now packages analysis, design, and build together, slashing timelines. Why it matters: This model points to a future where AI doesn’t just automate tasks but systematically scales rare human expertise, reshaping how mentorship and software delivery work at scale.