Professional SummarySeeking a position to utilize my skills and abilities in the Information Technology Industry that offers Professional growth while being resourceful, innovative and flexible. SkillsAgileLinuxPythonWin CECC Work HistorySenior Software Engineer,06 2013to10 2014The Hartford Cos Cob,CT,Developed a Host Based Intrusion Detection System to detect malware s anomaly for Windows guest VM by implementing kernel mode drivers, a Windows service and WiX installer.Senior Software Engineer,11 2011to11 2012The Hartford Jericho,NY,TaiwanImplemented ActiveX and Websocket server interfacing with Spice client to manage, configure and control virtual machine (VM) from browsers.Implemented location-based printing for Windows VM by modifying QEMU and Spice clients.Developed a Dropbox-like server for Openstack Swift object storage based on Pylons and SQLAlchemy framework using Python.Implemented a load balancer and health check for Swift proxy using DNS.Senior Software Engineer,07 2009to09 2011The Hartford Kingston,RI,Implemented 802.11 a b g n NDIS (5 6) miniport driver for Windows Vista XP 7 to support for packet sniffing, throughput Iperf test, active survey and roaming control for AirMagnet WiFi Analyzer based on Atheros code base for AR9170, AR9280 and AR9390.Ported the Linux open source for Intel Ultimate-N 6300 6200 to NDIS6 driver to support Airmagnet WiFi Analyzer and Surveyor running in both 32-bit and 64-bit Windows 7 XP.Enhanced and maintained the AirMagnet NDIS protocol driver that is an intermediate driver between application and 802.11 a b g n driver for each supported Atheros 802.11 a b g n chip.Senior Software Engineer,07 2007to2009The Hartford Louisville,KY,Developed a CoNDIS VPN driver to tunnel PPP HDLC frame as well as non-PPP HDLC frame over Secure Sockets Layers(SSL) for SSL VPN client running in 32-bit and 64-bit XP and Vista.Implemented a rule-based QoS service which shapes the outgoing traffics for VPN client and employs RPC (remote Procedure Call) to communicate with ActiveX dialer to initialize and load service flows and filtering rules.Senior Software Engineer,05 2005to06 2007The Hartford Manchester,NH,Developed the WiFi and WAN NDIS intermediate driver for Windows Mobile device (WinCE) to perform the call handoff between 3G and WiFi as well as to resolve the NAT traversal issues found in APs and UDP block problem found in firewall for SIP VoIP using hole punching, UDP and TCP tunnel.Implemented driver interface APIs and supported routines for Windows Mobile device (WinCE) to allow the VoIP application to control the NDIS intermediate driver, manage adapter s IP address, routing table and detect the power transition state as well as the connection disconnection of a network.In Charge of developing a NDIS WLAN intermediate driver and a virtual Ethernet NDIS driver with stream interface for Windows Mobile device (WinCE) to support various types of SIM based authenticationSenior Technical Manager,11 2003to04 2005Prokarma, Inc. Phoenix,AZ,TaiwanAdministered training, documentation and presentations that covered the topics of driver development, OS core concepts, and application development for WinCE to newly hired engineers.Managed a staff of sixteen engineers to develop embedded software including applications and device drivers for Portable Media Player running in WinCE 5.0 and my tasks included project assignment, project schedule control and designing software architecture.Led a staff of six engineers to architect and develop a Connection Wizard for 802.11 (Wi-Fi) using MFC to support multiple chips from different vendors.Senior Software Engineer,05 2000to06 2003The Hartford Minneapolis,MN,Worked as a protocol developer to implement and modify networking protocols including NAT, PPP, PPPoE, L2TP, DHCP (server, and relay agent), packet classifier IP filter, IPSec for fixed broadband wireless products (802.16) under vxWorks.Developed a provisioning server providing the integrated service of TFTP server and configuring DHCP server using socket programming in MFC C for WIN200 LINUX to facilitate the job of installing and configuring Aperto s wireless network devices.Senior Software Engineer,02 1999to04 2000The Hartford Narragansett,RI,Designed and implemented NDIS protocol driver, NDIS miniport device driver and I960 embedded firmware for Xyratext Gigabit Ethernet to generate network traffic for an Ethernet Sniffer.Developed a NDIS miniport driver for a null modem cable to connect two PCs point-to-point.Project Lead,02 1997to01 1999Ibm Corporation Lexington,KY,Oversaw and tracked the progress of the software development for Daviocom s 56K modem chip to ensure adherence to critical path.Ported TCP IP, UDP, and PPP protocols to the modem controller for a stand-alone VoIP phone.Implement and modified existing serial port driver to evaluate the feasibility of developing the software modem for Davicom s 56K modem chip.Senior Software Engineer,05 1995to01 1997The Hartford New Fairfield,CT,Developed a NDIS 3.1 WAN driver for an ISDN adapter running on Windows 95 NT.Developed an intermediate Telephone Service Provider Interface (TSPI) and NDIS protocol driver in Windows 95 to support the voice data on an ISDN adapter.Software Engineer,08 1992to04 1995Amentum Kings Bay Base,GA,Developed audio and MIDI driver in Windows 3.1 for Port Blaster.Developed a VxD for Blaster in Windows 95 to emulate DMA and I O of Sound Blaster providing compatibility to run sound applications under V86 mode.Modified an existing NT kernel mode sound driver for Sound Blaster Pro.Software Engineer,08 1989to07 1992Amentum Kings Point,NY,Implemented and maintained Windows 3.1, OS2 AutoCAD display driver for Ahead s 16 256 colors VGA chips.Implemented VESA BIOS driver for super VGA modes provided by Ahead s VGA chip.Maintained and enhanced the performance of the VGA BIOS.Implemented a DOS TSR tools and utilities for TIGA3401 graphic adapter. EducationMaster of Science Computer Science,Expected in1 1989toCalifornia State University-Chico,CaliforniaGPA Computer ScienceBachelor of Science Computer Science,Expected in1 1986toOhio University-Athens,OhioGPA Computer Science Skills3G, ActiveX, application development, APs, architect, Audio, AutoCAD, broadband, browsers, C, C , cable, Hardware, controller, client, clients, CVS, designing, DHCP, DNS, documentation, DOS, Drivers, Eclipse, Ethernet, firewall, frame, GPRS, graphic, HDLC, Intel, IP, ISA, ISDN, Languages, LINUX, access, C , MFC, Windows, Windows applications, WIN, Windows 3.1, 3.1, Windows 95, 98, NT, Windows 7 XP, MIDI, modem, network, networking, OS, developer, OS2, PCI, PPP, presentations, programming, progress, Protocols, proxy, Python, routing, RTOS, Sockets, software architecture, software development, Sound, SourceSafe, SSL, Swift, TCP IP, Telephone, phone, USB, utilities, Vista, Visual C , VM, VoIP, VPN, VxWorks, WAN, Windows CE, Windows CE 4.2, XML  SEP  Job Title Data EngineerLocation San Francisco Fully RemoteDuration 4 Months Contract Possible of ExtensionJob Description The data science foundations team is looking for an experienced data engineer contractor to help establish a unified data model that will support our analytics initiatives and build scalable infrastructure for data teams.Responsibilities Data modeling build and refactor data marts automate the enforcement of best practices and design principles where possible Data pipeline development and optimization develop new data pipelines and ETL processes and enhance the efficiency of existing ones to reduce cost and improve landing times and SLAs. transition data pipelines to dbt and create features that allow data scientists to utilize the platform. Build scalable systems Build systems to automate monitoring and alerting for data anomalies Build internal data products to automate workflows and reduce manual workExperience Knowledge of structured data base systems and data modeling principles Experience writing and optimizing complex SQL queries. (Snowflake preferred) Familiarity with data visualization tools (Superset, Looker preferred) Experienced in object-oriented programming (Python) Experience working with orchestration systems (Airflow preferred) Experience working with Github Data governance experience preferred but not requiredSkills Knowledge of structured data base systems and data modeling principles Experience writing and optimizing complex SQL queries. (Snowflake preferred) Familiarity with data visualization tools (Superset, Looker preferred) Experienced in object-oriented programming (Python) Experience working with orchestration systems (Airflow preferred) Experience working with Github Data governance experience preferred but not requiredEducation Bachelor s degree.About US Tech Solutions US Tech Solutions is a global staff augmentation firm providing a wide range of talent on-demand and total workforce solutions. To know more about US Tech Solutions, please visit www.ustechsolutions.com. Recruiter Details Name Yamsani SaiprakashEmail yamsani ustechsolutionsinc.comInternal Reference Id 23-25759