– Pirasenna Thiyagarajan joined Seattle warehousing logistics and shipping startup Flexe as its chief technology and product officer. Thiyagarajan in recent years held multiple CTO roles at Bay Area startups. He also worked for nearly six years at Amazon Lab216, an R&D hub based in Sunnyvale, Calif. His most recent role for Amazon Lab216 was head of engineering for last mile technologies, which he left in 2016.