Viktor is an AI coworker that lives natively in Slack, acting as a company-wide agent with access to 3,000 integrations. Unlike personal agents, Viktor operates at the team level — one integration connection grants access to the whole company. The talk covers the product's evolution from a browser-based web agent to an email agent to a Slack-native AI employee, key technical challenges like multi-user memory management and context isolation across channels, and why Slack's async nature makes long-running agent tasks feel fast rather than frustrating. The founder also discusses model personality (preferring Claude Opus over GPT for tone), proactive workflow suggestions, and the three pillars of a great AI coworker: getting work done, knowing the company context, and being friendly.