Warren began his career in banking, portfolio management and trading. He eventually went on to found the RHI Group where he developed a variety of trading, risk management and operational applications. After RHI, he was the founding partner of DeepWell Ventures, a deep-tech focused early stage venture capital fund. Concurrent with DeepWell, Warren was also a Ventures Partner at Airbus where he focused on investments in aerospace, defense, and computing technology. He has co-managed a directional hedge fund portfolio where he focused on natural resources and commodities and has also led the Global Derivatives Trading for Janus Henderson in Denver and Singapore, managing billions of dollars of AUM exposures across a wide array of developed and frontier markets.
At Downing, Warren invests in early-stage technology enabled business from Seed to Series A and beyond. Leveraging his love of deep-tech technologies, concepts and ideas, Warren applies his thesis-driven approach to practice areas across enterprise, IoT, data, materials, cyber, and quantum technologies.