Christabel Sitienei

Christabel Sitienei
Staff Software Engineer

Christabel joined Keystone in 2021 and works as a Staff Software Engineer in the San Francisco office. At Keystone, she consults Fortune 500 companies, global brands and law firms using knowledge from business, economics and technology to deliver transformative ideas on ecosystem strategy, AI/ML and big data, digital transformation, IP, and process optimization. Christabel brings with her a strong quantitative background featuring deep expertise in large scale software systems (networks, computer architecture, low level systems etc.), full stack web development, AI/ML and associated data engineering. She is highly skilled in parsing, analyzing and visualizing complex data to advise litigation, market and digital strategies in addition to performing quantitative and qualitative research including source code review and legal reviews.

Prior to Keystone, Christabel worked at Goldman Sachs, BlackRock, Fidelity Investments and Massachusetts Institute of Technology (MIT) in different capacities as a Software Engineer/ML Researcher. She holds a B.S. and an M.Eng. in Electrical Engineering and Computer Science from MIT.


  • B.S. in¬†Electrical Engineering and Computer Science from Massachusetts Institute of Technology