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alastair cook
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Teams were spending hours digging through shared folders, documents, and chats — often for answers that already existed. traditional search didn’t help. we needed a private, reliable, ai-powered way to ask questions and get answers from the knowledge teams already had


I led the design of team brain - from a vision to reality in less than 4 weeks. An ai-powered search experience that gives teams direct answers from their own documents, not just links.

4 weeks

Time

2

Reserach Studies

customer roundtables

Status

staff rollout

Phase

my role

  • led the vision and discovery work that got founder buy‑in
  • worked in a tight team of 5 (principal engineer, front/back‑end eng, pm) to launch a staff beta in just four weeks
  • planned and ran experiments to validate concepts and measure impact
  • conducted user testing to refine interaction patterns and latency affordances
  • presented at an enterprise customer roundtable to gauge market interest and adoption potential

how it works

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ask questions in plain language

no keywords — just ask like you would in chat. no more digging through documents.

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ai interoperability

interweaving different contextual intents through the same ai workflows (search > chat).

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knowledge, extracted

helps pulls insights from docs, designs, whiteboards etc to form a shared knowledge base across teams.

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contextual answers

provides direct answers with relevant context, not just document links. Shows where information came from and when it was last updated.

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one place for all questions

supports external knowledge sources to keep answers unified and searchable for large teams.

Future vision of bringing modes of ai-powered search

unified search experience

educational driven defaults for ai-search suggestions

unified search experience

seperate search and chat modes

what I learned

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search is unpredictable and fragile

people expected perfect answers — designing for uncertainty became the real design challenge.

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small teams can ship big ideas

with the right alignment, a few focused people can build production ready capabilities fast.

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natural language beats keywords

once internal staff saw that search could infer nl intent, we saw a sizable shift in keywords v.s nl queries

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latency didn't stop us

even with small latency, internally teams have valued the depth of answers, where discovery trumped speed.

next project → amazon intranet