Alexandra Elston Email and Phone Number

Key projects:• Led research and development of a cloud-based research platform for back-testing large financial datasets by applying machine learning concepts to several investment models producing thousands of variations and statistics in parallel.• Design and implement multithreading Trading application that computes several investment strategies over multiple client accounts in real-time.• Full development cycle of proprietary web based financial reporting systems to process, standardize and reconcile financial transactions producing customized financial reports and statistics. • Architecture and administration of AWS cloud for the company’s use cases: daily data processing, reconciliations, recovery plans, backups, user’s administration and application’s servers.Other Achievements:• Developed new approaches for high performance tests, analysis and ranking models’ historical performance.• Developed self-test against previous models’ results to insure the integrity of data. Improved process performance by 95%.• Developed self-updating models using current data to keep statistics and rankings up to date.

Key Projects: • FlexNet Manager Suite integration that represents a "single pane of glass" concept for monitoring compliance based licenses (Microsoft, etc) along with usage based license (AutoCad concurrent licenses, etc) for enterprises.• FlexNet Manager for Cloud Infrastructure (AWS cloud infrastructure resources utilization dashboard)• Data collection services (REST APIs / Java)Other Achievements:• Designed and implemented first end to end prototype with .Net front-end, and Java backend for license usage analytic service. RESTFul interfaces. I received an Innovation Flexera Engineering Award for this work.• Designed and implemented an ETL service to process license usage log files and import the data into AWS Redshift database.• Designed and implemented datamodel for AWSRedshift database. Researched various options of the usage data distribution across multiple nodes of AWS Redshift cluster. The final model improved report's runtime from 40 minutes (Sql Server) to 20 seconds (Redshift).• Analyzed legacy code and implemented improvements to drop the processing time from 24 hours to under 3 hours. Average performance improved 10X. Received an Engineering award for this work.• Work directly with customers to apply the changes and build a plan to get them back on track with an ongoing usage data aggregation process.• Within 3 months, I made progress from zero knowledge of Cognos BI Analytics to successful implementation of FlexNet Manager for Cloud Infrastructure (FNMCI) Dashboard that included 21 reports. I received an Engineering award for this work.• Researched and implemented working prototypes of various FNMCI services for AWS deployment. • Reverse engineered the Apache Maven build automation tool and developed a cloud service for Data Collection and Analysis of the Maven Central OSS repository• Developed a cloud service for Data Collection (Docker images and metadata) and Analysis of Docker Hub.

Lead Software Engineer at SITRA LLC in charge of the full development cycle of financial investment web applications. Other responsibilities includes the design, implementation and administration of cloud computing architecture; administration of Jira; design and execution of recovery plans; as well as managing and mentoring the software engineer team. Key Projects:• Multi Manager Account designer, Principal software engineer in charge of Analysis, design, coding, testing and deployment new requirements as well as debugging and fixing old issues. Tools(Jboss, Seam, Hibernate JPA, EJB, JSF, Richfaces, JQuery, Javascript, HTMLX/CSS, JFreeChart, Java and Mysql . Deployed in Linux)• Integrated Reporting System, Principal software engineer in charge of re-architecting the existing application to a new, more modern, fast and interactive web application. Tools(Tomcat, Java J2EE, Servlets, jsp, javascript, HTML/CSS, JQuery, FusionCharts and Microsoft SQL Server. Deployed in Windows)• Strategy Application: Principal software engineer in charge of develop a desktop high frequency trading program, designed to significantly beat the National Best Bid Offer on exchange listed stocks by 4-10%. Tools(Microsoft Visual Basic 2010, Sterling API)Other achievements:• Analyze and tune existing stored procedures in MS SQL Server 2008, resulting in performance Improvements of up to 90% • Analyze, design and administrate the new AWS cloud architecture to support the web applications' new generation.• Design and implement servers and databases’ backups and recovery plans.• Research, install and administrate software tools such as JIRA Bug Tracker to improve team work communication and productivity.• Work with the development and testing team to create standards and documentation for the current applications, databases and internal procedures.

Working as a front and back-end software Engineer, coding, testing and deploying financial web applications.Key Project:• Multi Manager Account designer, Tools(Jboss, Seam, Hibernate JPA, EJB, JSF, Richfaces, JQuery, Javascript, HTMLX/CSS, JFreeChart, Java and Mysql . Deployed in Linux)

Analysis, design, coding, testing, deployment, and support of GIS applications for sales, marketing, banking, law enforcement, and military organizations. Manage mapping department to meet applications requirements. Increase customers’ process efficiency up to 90% by researching tools and best practices to discover and promote improvements.Key projects:• Vessel Mobile System Application (v1&2) for Colombian Marine Army: Promoted national security by development full lifecycle of software that allow central communication for thousands of GPS devices installed in marine, commercial, and private vessels.• GPS Standard Protocol for Colombian Marine Army: Played key role in developing standards for all GPS devices certified by Colombia’s Marine Army.• Address Geocoder Applications: Developed address geocoder applications for Colombia, Ecuador, and Guatemala, one of the company’s most popular applications for the past 7 years.• Mobile Phone Application: Worked with team of three engineers to develop custom mobile phone application for Colombia’s largest cell phone provider. Translated geocoder to Java and developed new requirements.• National Police GIS Application: Developed GIS application for national police to correlate and track crimes, resources, and operative centers. • Geobis Logistics: Improved productivity and reduced operational costs of logistic companies by collaborating with external software firm to develop route planning and scheduling application.

Design, code, test, deploy, and support industrial safety applications in Visual Basic 6.0 and SQL Server database. Notable contributions:• Developed software for industrial safety that closely tracks levels and time of exposure to employees. • Created Audioplus application for physicians, improving accuracy of diagnosis and reducing evaluation time 95%.

Provided analysis, design, coding, testing, deployment, and support of applications.Notable contributions:• Improved automation and autonomy by developing algorithms for specific areas of aqueduct. Implemented algorithms in C++, working closely with four team members. • Secured additional three-month contract with company to gather / analyze requirements and develop software for mail control.