Charles Olson Email & Phone Number

Greater Boston Area

Philadelphia, Pa (Remote)

Member of Core Networking team, developing networking infrastructure for network aggregation product aimed at cable operators, etc.• Designed and developed facility for compressing TCP packet headers to save bandwidth.• Designed and developed TCP/IP proxy module, that operated as a full TCP/IP stack on either end of a proxied connection, with data forwarded over one or more network interfaces (e.g. wifi and cell) in between, via a proprietary protocol. • Wrote unit and integration tests for the TCP/IP proxy module.Developed in C++14 on MacOS and Ubuntu Linux platforms.

Greater Boston Area

Member of Internet Firmware team, developing control and reporting systems for millimeter-wave wireless networking hardware, targeting an ARM-based embedded system running Linux.• Developed facility to report packet rate histograms from wireless interface kernel driver via Collectd, from all supported 802.11 data rates.• Designed and implemented new Collectd plugin for reporting signal strength from wireless interfaces.

Cambridge, Ma

Senior Software EngineerMember of Cloud Optimization group, developing a Linux-based on-premise appliance for delivering Akamai services, including caching and optimization, to Enterprise data centers and branch offices.• Designed and implemented statistics collection and reporting application in C++, backed by an SQLite database.• Designed and implemented statistics reporting client libraries in C++ and Perl, which are used by all applications on the appliance to report statistics and traffic to the collection application.• Redesigned and rewrote statistics reporting component of packet routing application, via an object-oriented design implemented in C. This included: o Aggregating multiple different data sets from multiple worker threads. o Detecting and reporting corrupted packets. o Reporting byte and packet counts at all stages of the packet pipeline, in both directions.• Designed and implemented facility for collecting packet captures on the appliance in a secure and transparent fashion, including infrastructure for running and managing processes and streaming the output to a central management server.• Designed and implemented a facility in Go to automatically renew the appliance’s DHCP lease when the network interface configuration changes.• Designed and implemented facility for creating system boot images for the appliance based on Debian packages, including GPG authentication of the repository.• Designed and implemented web-based command and configuration server facility for central server that manages multiple appliances. • Designed and implemented facility for authenticating the appliance against the central server using a Trusted Platform Module chip on the appliance.• Designed and implemented component health reporting module for the appliance in C++.• Wrote automated tests in Python for the reporting module.• Developed in C++ 11, C99, Perl 5.2, Python 2.7, Go 1.6.2 on Debian 8.7 platform using Eclipse and G++ 4.9.2.

Cambridge, Ma

Worked on implementing clustering support for Endeca Server database engine management application.Ported Endeca Server deployment from Jetty to WebLogic, including 2-way SSL support.Designed and implemented support for renaming properties (columns) in DGraph database engine.Designed and implemented support for defining and validating multiple “semanticentities” (essentially database macros) simultaneously.

Designed and implemented enhancements to network traffic statistical analysis library.Worked on integrating Sandstorm protocol parsing and application reconstruction engine into Niksun products; e.g. integration with NIKSUN regular expression packet search facility. Designed and implemented parsing modules for extracting content of webmail submissions, including attachments, targeting GMail, Yahoo! Mail and Hotmail.

Designed and implemented database modules and network protocol parsers in C for OSPF, BGP and RIP routing protocols, for reconstruction of network map from captured packets. Designed and implemented C++ back-end code for LCD display of status updates, for headless operation of network analyzer product.

Principal engineer responsible for enhancements and ongoing development of large automated software testing infrastructure, developed almost entirely in-house. Infrastructure performed several thousand unit and system tests nightly of disk-based archive storage system, on farm of 500+ testing servers.Designed and implemented new test suites for testing interoperability with third-party applications.Designed and implemented enhancements to test monitoring and reporting architecture.Part-time member of Filesystem Development team, developing enhancements and unit tests for NFS-based front end to data archive product. Primary development in C++ with extensive use of multithreading, smart pointers, STL, et cetera.

Volunteer member of Media Lab research group developing tools, infrastructure and platforms for wearable computing.Designed and implemented enhancements and new features for experimental wearable computing platform.Integrated SSL security protocols into distributed interprocess communication infrastructure.

Designed and implemented a major redesign of Jewel Thief (clone of Bejeweled), one of Gamesville’s earliest Java-based games. Redesign was aimed at improving gameplay and visual interest so as to increase player retention.Designed and implemented Magic Pyramid, a Java-based card game. Both games involved extensive graphical manipulation, including animations, in a Java applet communicating with a C++ backend.

Designed and implemented policy monitoring and reporting system, for FreeBSD-based network QoS platform. This included a back-end based on the Berkeley db database library, a collection system built into the user-space device management system, and a reporting library for extracting data from the database and performing the necessary calculations to return appropriate results to client applications.Designed and implemented client application for interacting with Web and command-line user interfaces.Designed and implemented device management API in C for clustered QoS devices. This system ensured that configuration changes made on one node in the cluster were seamlessly and reliably propagated to all other nodes, with appropriate commit/rollback mechanisms.Assigned to special group tasked with performance and stability improvements in existing code; designed, implemented and delivered numerous fixes that greatly enhanced the reliability and performance of Sitara products, also carried out extensive performance analyses aimed at identifying bottlenecks and traffic-related problems.

Finished port of DOS network analyzer product to Windows NT and Windows 98 platforms.Designed and implemented major improvements and revisions through two major releases.Designed and implemented companion throughput monitoring application, which displayed a tree of the protocols found on the network, and allowed the user to generate graphs of throughput and packet counts.

Member of development team for implementation of IPSEC/ISAKMP security protocols for the Windows 95 desktop.Integrated separate Windows NT and Windows 95 implementations of Socks firewall-traversal protocol to common source base.Ported IPSEC device driver from Windows 95 to Windows NT.Did extensive compatibility testing of IPSEC implementation with CheckPoint FireWall-1 product.