Gireesh Sadasivan Email & Phone Number

Bellevue, Wa, Us

Leads development of software architecture and design of new products and solutions to expand T-Mobile’s offerings beyond wireless services. Responsible and accountable for delivery of enterprise solution architecture for T-Mobile’s new product offerings including T-Mobile Money (mobile bank), Home Internet, and TV. Supports integration of software systems from acquisitions such as Iowa Wireless and Layer 3 TV into T-Mobile US eco system.

Chicago, Il, Us

Was brought in as a change agent to build a world class software engineering team in the Inventory Management space• Built a new engineering team of 10, from college graduates to Principal Engineers• Mentored senior engineers in the Inventory Management organization in hiring the best• Led Item Management Application (IMA) software development team

Seattle, Wa, Us

As SDM of Shipping Engine, led development & operations of Tier-1 Services that are integral parts of the Amazon ordering experience. The services which have over 50 client applications process over two billion transactions per hour worldwide.• Scaled the system to support over 6x increase in traffic• Reduced the number of system outages to zero minutes per year• Migrated data store to No-SQL technologies to further improve application scalability• Key player in the design and launch of several new business initiatives such as Wine Sellers, China Ship by Region, Same Day Delivery Search• Saved $3MM in hardware expenditure by streamlining calling patterns in the ordering pipelineAs SDM in Delivery Technology led development & operations of Simulation & Visualization Suite and Routing Management Portal• Built and operated Simulation Platform that enabled feasibility studies of new delivery station launches and impact analysis of proposed changes to existing delivery station operations. Amazon’s Prime Now operations was launched on this platform• Consolidated and modernized route planning, visualization, and metrics functions into one Route Management Portal, thereby streamlining existing Delivery Station operations and enabling rapid launch of new stations

London, Gb

Pearson’s Assessment for Learning division develops and markets enterprise class learning assessment software for the nation’s largest school districts• As Pearson’s liaison at the boutique development partner organization in North Carolina, instilled in them software development best practices and standards. Evangelized Agile SCRUM development framework and influenced the team to follow Agile Scrum to integrate the boutique shop with Assessment for Learning Enterprise. Served as the team’s Scrum Master.• Led the delivery of Pearson Limelight and Pearson Prevent SaaS applications that are developed by Sprint teams in Ukraine and North Carolina. Applications are built using tools/frameworks such as JSP, ExtJS, Spring, Hibernate, JBOSS and Rally

Dallas, Tx, Us

• Led multiple Agile Scrum teams in the development of multiple products such as customer acquisition and enrollments, web based customer self care, bill presentment and payment applications. Applications are developed using JSP, Java/J2EE, JBOSS, Oracle, MySQL, and MSSQL• Implemented SOA based approach to re-engineer multiple self-care application as a product reusing existing code modules and defining service interfaces that can be used to hook multiple backend CIS/Billing applications, SAP/Excelergy/Banner• Productized statement processing system while migrating from mainframe to Java running on Windows and UNIX servers, developed configurable architecture to reduce implementation time for boarding new clients• Provided technical leadership and support to the sales organization in several RFP responses and contract negotiations• Working closely with client executives and business development organization, prioritized enhancement requests, defect resolutions, and new releases. Provided appropriate focus to all three channels increasing internal and external customer satisfaction• Structured teams optimally to simultaneously deliver new products and solutions, client requested enhancements and internal operations improvement requests• Managed hardware, software, and personnel budgets, prepared business cases and forecasts• Guided and mentored managers and team leads

Columbus, Ohio, Us

ORCOM Solutions was purchased by Alliance Data Systems.

Primary responsibility was to evaluate Customer Care & Billing Products, conduct Build vs Buy vs Partner analysis, recommend solutions to re-engineer the existing legacy CC&B Product. On reaching Partner & Build decision:• Developed customer self-care application in Java/J2EE and modified Struts application framework running on JBOSS• Staffed and built the Philadelphia development team consisting of Java/J2EE Developers, DBAs, Test Engineers, Business Analysts, and Configuration Manager• Implemented iterative development methodology to facilitate timely delivery of software built across three sites, Bend-Oregon, Philadelphia, and Madrid, Spain• Coordinated development activities with development team in Madrid, reviewed architecture, design and code. Successfully delivered first version of the application• Evaluated and selected data warehouse tools, negotiated long term license contract with the vendor• Directed Madrid and Philadelphia teams in the resolution of performance bottlenecks

Us

Daleen was acquired by Formula Telecom Solutions...http://www.fts-soft.com/category/welcome-to-fts• Developed architecture and code for platform independent foundation classes for multi-threading, database access, and a Registrar/Dispatcher/Service application framework that enabled massive parallelization of processing • Re-engineered two tier Delphi Billing and Customer Care application to Java/J2EE application running on BEA WebLogic Server• Led design and implementation of Customer Care and Billing application, developed in Oracle, C++, and Delphi• Built Performance and Benchmark Laboratory in Boca Raton, with equipment such as SUN Enterprise Servers, EMC2 Storage Array, Windows Servers and several workstations; managed day to day operations. Conducted several benchmarks at performance centers at Oracle ASC, and HP CPC on highly scalable hardware configuration. P&B Lab served as level three support organization.• Effectively led teams of software engineers, test engineers, documentation specialists, software configuration engineers, and DBAs through all phases of software development, requirements definition, high level design, detailed design, code development, quality assurance, beta testing and benchmarking• Conceived and implemented a development methodology, a hybrid of RUP and ‘water fall’ method. Co-developed and practiced project estimation and planning methodology that enabled delivery of software within two or three days of planned delivery dates on releases of duration between three and six months. The process was self-correcting and convergent.• Led performance and scalability efforts, scaled the application from ability to support 100K accounts to 40 million accounts in two and half years, the highest benchmark achieved by any billing vendor on a single database server configuration

Us

Miami, Fl, Us

Us

As a software engineer and lead, mastered several languages such as MS Assembler, Fortran, C, and C++

M. S., Engineering

M. A. Sc., Naval Architecture

B. Tech., Technology