Hands on and manager - Architecture of all Electronic Trading Infrastructure - Cross Markets driving: Performance, PnL and Stability. Responsible for: Reference solution architecture, Change-the-Bank (CTB) and EoVS focus. Vendor, Enterprise Infrastructure (CTI) and CISO CTB/EoVS Book-of-Work (BoW) governance and technology stewardship through delivery. Clients are the Markets Business, Markets-Tech application owners. Tech stack is everything south of L7 (application layer).

Fellowship awarded in 2017 for key contributions to STAC-TS (benchmarks for timestamping and event-capture solutions)

Outside Business Interest - not associated with Citi.

Management & Engineering / Delivery:- Manage Global staff (10 in Sys; 7 in Ops) – including all technical delivery and keep the lights on.- Responsible for all technology (minus shared SW stack) for the firm: FX & Futures, Crypto.- Manage Ultra Low Latency network across all Colo and Cloud (AWS & GCP) locations.- Act as primary technical conduit between the Partners, algo trading teams and systems.- Key member of Firm Operating Committee (runs the company).- Acting CISO: Created Global Cyber Security policy and run Security Governance Committee.- Own Build and Deployment of all SW including shared & trading team specific.- Own technology budget for the firm & associated allocation to trading teams.- Own onboard & offboard of all staff and trading team infrastructure (highly specialized).- Own Build and Deployment functions & DevOps automation frameworks for the firm.- Technical facilitation of FX Direct Counter Party business & standup of algo hedge fund.- NY4 cage migration (doubled power and space); LD4.2 Build & EBS migration.- Drove technical initiatives to build faster versions of Hibernia Ultra 1 (projects de-prioritized).- Drove re-arch of Network, DR, Global network RFP (complete refresh) – fiber & microwave.- Implemented global VMware Horizon solution for Data Loss Prevention & Covid WFH.- Implemented SCRUM methodology and drive daily meetings / prioritization of work.- Created highly collaborative empowered culture – model for other teams in the firm.- Implemented AWS Cryptocurrency trading infrastructure, builds and connectivity.- Operations team provides 24x5.5 monitoring of plant and URGENT issue remediations.- On call – act as the final escalation point for Systems (production non-SW Stack issues).- Responsible for book of work & technical stewardship of staff.

Management & Systems Engineering / Delivery:- Globally responsible for physical through middleware technology for low latency electronic trading in Colos across all asset classes - provide all infrastructure (UNIX, network, server, facilities, HW, middleware, firewalls, Time Sync, etc...); technology stewardship & hands-on.- Manage global ultra low latency network across Colo, FW-silos/ULL Cells & Core datacenters.- Act as the primary interface between Equities/Debt business & core technology teams for infrastructure – own relationships & book of work & delivery of architected solutions.- Responsible for networking book of work & technical stewardship of all global infra teams.- ~Manage team of 20 systems engs globally; indirectly manage a global team of 40+ people.- Responsible for all Colo & ULL Cell run/change the bank efforts and DR testing globally.- Deliver(ed) Next Gen Colo Builds globally for: GME, GED, Listed Derivatives, FX-SPOT.- Driving Machine Learning for Monitoring & Application Complexity initiatives firm wide.- DB Innovation Labs Americas – Converting subset into Low Latency proof of Concept lab.Subject Matter Expert:- Named STAC Fellow; Named Global Enterprise Engineer (Nov 2016) 1/25 in the firm globally.- Serve on firm internal CIB CTO Technology Council – champion engineering disciple in org.- Provide technical designs & governance over all precise & accurate time distribution efforts: Leap Second, MiFID2, SEC/FINRA, Member of FIX & STAC time sync workgroups.- Recognized industry-wide technology architect – serve on multiple advisory boards historically & actively working with numerous vendors on new product designs.- Technical SME on Microwave, DWDM, Monitoring & FPGA based technologies for the firm.- Ongoing technical mentorship of staff to ensure proper delivery to the business.- Act as technology steward for migration to HP Core datacenters as part of Nucleus.

Architecture:- Global precise and accurate timing & network monitoring / instrumentation architect for the firm: primary focus on all trading organizations; secondary focus on global TELCO organization.- Industry recognized leader in high frequency low latency monitoring leveraging matrix, packet capture, advanced analytics, timing, TAP, database and data visualization technologies.- Co-designed key architecture of anti Knight Trading controls project.- Serve on numerous Technical Advisory Boards; provide advisory services to both internal &external Venture Capital & business development organizations as well as well knownindustry testing organizations like STAC and publications like the Gartner Group.- Designs (inclusional of new products to market) have saved the firm millions of dollarsannually, and define the roadmap for the industry.Subject Matter Expert:- Low latency monitoring: Corvil, TS-A, SeaNet, Correlix, Nikusn & NetScout, Arista, Cisco, Brocade, cPacket, BigSwitch, Extrahop, SevOne, Panopticon, Adva- Advanced matrix / pkt-flow-switches: Simena, Network Critical, VSS & Gigamon.- Time of day & frequency distribution / synchronization (GPS to local system oscillator):Spectracom, Symmetricom, NTP, PTPv2, FSM Labs, SynchE, NetFlow, IP FIXDevelopment:- Core software development in Perl, C, Java, Bourne/Ksh & SQL.- Line rate data capture & analysis (CACE) appliance utilizing Endace data capture cardsrunning on custom (Aegis) Linux platform with Endace line rate data capture cards.- Enterprise class NetFlow capture & analysis appliance.- High speed ICMP/SNMP Poller as next-gen foundation for internal CheckNet configurationmanagement system.- SPAN port analysis, detection & configuration system (patent forthcoming).- Health Check & automated configuration gen tools for managed appliances.- Near line rate data warehousing & aggregation solutions with Postgres, MYSQL, Sybase,NitroDB, StreamBase, InfoBright, Vertica and GreenPlum

Development:- Developed custom build and deployment system for automated initial, clean, and upgrade deployments of product for all integration and production environments.- Developed custom Perl & shell scripts for performing: build certifications, VMWARE system analysis, certificate generation, key synchronization, DB analysis and report creation.Systems Integration & Administration:- Performed systems design, buildout, deployment, integration and debugging of all Network Operator environments (clustered) composed primarily of BEA Weblogic, Apache HTTPD, Tomcat, simulators, custom services and tools.- Routinely debugged, designed and implemented fixes for all environments and supporting services: DNS, LVS, Oracle & MYSQL DBs, IPTABLES, NTP, VMWARE and networking.- Performed training and support services for members of Solutions Development and Quality Services organizations for custom tools, deployment framework and environments.- Consistently designed and implemented workarounds and subsequently worked hand in hand with QA, Product and Solutions Development.

Platform:- Developed hardened Solaris 2.6 / 2.7 and Debian Linux platforms.- Developed next generation tool for building Solaris install CD-ROM and network jumpstart servers (utilized JASS).- Developed custom ‘standards based’ Linux distribution from source.- Developed reproducible Well Known Services platform (provides DNS, NTP, SSH, APACHE, SOCKS, SYSLOG, DHCP services).Tool & Application:- Developed hardware and location independent disk replication and translation tool.- Developed highly customizable GNU based build system.- Co-developed appliance system wide configuration tool written in Perl.- Developed packages and configuration for: NTP, SSH, SYSLOG-NG, CRON, TCPD, IPTABLES. WINS/Samba, and others.- Developed secure remote system integrity tool.- Developed NOC tools for remote administration of customer premise equipment.Development & Integration:- Integrated third party and in-house applications on both Solaris (managed service) and Linux (appliance) platforms.- Co-designed and implemented a high availability Linux load-balancer solution (F5 replacement).- Responsible for kernel patches, build system, configuration, and deltas.- Integrated iPass 'remote authentication proxy server' into core platform.Systems Engineering:- UNIX Systems support: including prototype hardware in datacenter environment.- Provided MIS and DEV with iptables / netfilter firewall configurations for DMZ.

Software Development:- Developed, analyzed and debugged network node switching software.- Developed prototype UUNET packet switching software on VxWorks platform.- Designed and implemented network IP data filters.- Developed software patches for operational switching nodes.- Ported custom software-build system to GNU tool set.Network Analysis:- Developed cross-platform network and gateway testing software.- Developed shell scripts to allow secure testing over hardwire and dial-up connections.- Performed crash dump analysis for operational network nodes.- Developed network analysis and testing tools.Systems Engineering:- Redesigned and implemented new department testing laboratory.- Responsible for resolving department laboratory hardware / software issues.- Acted as systems administrator: provided expertise in tools, operating systems, compilers, network, and computer hardware / software.

As a Co-op while going to College:Systems Engineering:- Installed NT / 95 based LAN at Dayton Power & Light legal facility.- Supported UNIX, Win95, WFWG, NT, MS-DOS, and Novell NetWare.- Configured and installed Kiosk system at Columbus, OH capitol building.Software Development:- Developed Java client-server application to create and maintain Ada code for Air Force.- Developed Internet database-driven human Resources application.

As a summer high school intern:- Developed graphics analysis application – allowed moving objects to be isolated, captured in sequence and displayed in isolation.

As a summer high school intern:- Developed graphical radar analysis and passive radar applications.