David Crick Email & Phone Number

In the role of developer and devops on an AdTech team working for Disney Streaming / Hulu, responsible for developing new features and API versions in Java for several backend servers that provide and enrich metadata related to content, viewer, device, etc. Also responsible for maintaining existing code and infrastructure, collecting metrics and building dashboards, load testing, producing and maintaining runbooks, deploying to production and supporting production. Experience with Agile methodologies, Java, Spring Boot, Mockito, Terraform Enterprise, Kubernetes, Spinnaker, Jenkins, pipeline builds, Micrometer metrics and Datadog as well as various AWS services such as ECS, Redis, OpenSearch, DynamoDB, SQS, Kinesis and S3.In the role of managing delivery architect, responsible to lead architecture for a project for ISO-NE that migrates their CMS and web services from on premise data center to AWS cloud, upgrading to Crafter CMS 4.0, deployment using Terraform and Kubernetes (using EKS) with CD implemented by ArgoCD, providing multi-region availability and blue-green deployments. Using CloudFront for region failover with WAF and Shield Advanced for security. Experience with Terraform and Kubernetes, AWS Aurora Global Database, EKS with EC2 and ALB, CloudFront, S3, WAF, Shield and Origin Shield.In the role of senior lead architect, responsible for defining and presenting a proposed architecture for a distributed multi-DRM system to CBS/Viacom/Paramount+ that initially supports Apple FairPlay, Google Widevine and Microsoft PlayReady. To provide reliable DRM services, the system implements failover to redundant DRM vendors. The system is also multi-tenant to support the various brands that use the service for content protection.

About three years In the roles of senior lead architect, development tech lead and devops, working with a team as primary contractor to a US government agency developing, operating and maintaining a large-scale video processing system for the Intelligence Community that runs in AWS cloud; features including DVR, program scheduling with support for daylight savings time (DST), clip creation, metadata enrichment, navigation by thumbnails, monitoring content status, content recovery and repair, collecting and reporting user metrics and implementing content restrictions. Responsible for delivering several hundred television and radio channels, recording thousands of episodes daily and maintaining a catalog of several million VOD assets. Was able to help solve some serious performance and reliability issues that also brought significant cost savings to the customer. After earning Authority to Operate (ATO) certification, worked to expose services to other government agencies and departments. Experience with AWS MediaConvert, MediaLive, API Gateway, CloudFront, CloudWatch, CloudFormation, Lambda Functions, Step Functions, DynamoDB, ElasticSearch, S3, Glacier, Kinesis, Rekognition, Transcribe, Translate, Cognito, NodeJS, Python, GoLang, C#, Groovy, Crafter CMS, SAML and CI/CD/CS; developing and supporting Lambda Functions using NodeJS, Python, GoLang and C#. Also significant experience with Crafter CMS, Groovy and SAML.In the role of devops and security, responsible for NIST SP 800-53 Rev 4 security scans and remediation, building AMIs using packer for ATO certification. Part of this effort was to redeploy a server-based application as serverless; addressing serverless authentication and building CloudFormation stacks for deployment. Also responsible for FISMA contingency planning, preparing resiliency test plans and preparing plans for recovery and reconstitution. Also responsible for builds and deployments, data clean up and migration.

Atlanta, Ga, Us

Working on both the engineering team that sells cruise packages and the devops team. With the engineering team, David worked on integration with a partner that provides redemption of rewards programs in the form of cruise packages. For this effort he built a mock server to simulate the partner's REST API to support testing with test credit cards, redemption of rewards, sales commissions, partial payments, net rates and the handling of specific failure conditions. David also provided production support, troubleshooting a number of reported issues. Experience with Scala, Play Framework, reactive programming and REST APIs; lesser experience with Akka and Mongo. In the devops role, supporting deployments of all products in AWS and on the ground; practicing CI/CD and blue-green deployments. Experience with Docker, Kubernetes, Helm, Jenkins pipeline builds, AWS and Google Lighthouse.

Armonk, New York, Ny, Us

David implemented a workflow engine for defining and implementing video processing (VP) jobs where tasks are modeled as microservices. This effort provides a means for adapting and integrating different transcoders or other processing equipment in workflows. This system was used to implement workflows for such live events as the French Open, Wimbledon and the Masters.With this infrastructure, David recently completed work for accurately identifying frames of content and ads, distinguishing local ads from national ads based on SCTE-104 and SCTE-35 events that will be used to automate C3 processing. This work involved writing FFmpeg filters for analyzing video for fade transitions, distinguishing very dark frames from black frames and detecting scene changes. This adaptation was used to process content for the Discovery Channel and distribute to affiliates under a tight SLA.David also helped to apply this video infrastructure to integrate asset management with IBM Watson for video enrichment. This VP infrastructure runs in AWS and is multi-zone available and scalable.David was co-inventor of an abstract DRM system that provides interfaces for key store and entitlements. This abstraction supports integration of various DRM systems including Common Encryption (CENC), Microsoft PlayReady, Google Widevine, Adobe Primetime and Apple FairPlay Streaming. Patent application in progress.David completed development of an abstract object store that adapts to different storage technologies such as S3, Cleversafe and HDFS using OSGi bundles. This project is also responsible for reliable, efficient transfer of objects and provides means for replication and migration. Technologies used include Java, C, OSGi, Jackson, Jersey, Tomcat, MySQL, Postgres and ANTLR.

Armonk, New York, Us

As a member of the Clearflow engineering team, David was responsible for building the file system and network management layer for Clearleap (CLFS). To date the file system has implemented replication of video content between data centers using dynamic bandwidth throttling as well as caching and distribution of video content. The file system implements an authenticated REST API providing access to content. Currently CLFS Integrates with with Hadoop Distributed File System (HDFS), Amazon S3 and Cleversafe.After he started with Clearleap, David specified a REST interface for remote management of video processing tasks including analysis, transcoding and quality control that is adaptable to interfaces to specific products. David implemented such an adapter for Elemental transcoding in the AWS cloud that is scalable and available in multiple zones. He also implemented a scheduler that manages the size of the Elemental cluster based on schedule of events requiring transcoding. David implemented a work flow engine as part of an infrastructure supporting development of video processing adapters (VPAs). David has also led development of VPAs for products including Telestream Vantage, Telestream Episode, Harmonic ProMedia Carbon (formerly Rhozet), Baton QC, DTS TSA (formerly Manzanita CrossCheck), Microsoft Azure and Watson Video Enrichment. For integration of video processing workflow with command line tools such as ffmpeg David built a REST interface for managing processes.David also wrote a file transfer layer for managing multipart, multi-threaded transfers of files between HTTP content stores, HDFS, S3, CIFS, local file stores and Microsoft Azure.David's work has been used in the support of such customers as NFL, iNDEMAND, MultiChoice, HBO, providing reliable video processing, multi-zone and multi-region available, that consistently met SLAs.David also implemented an authentication library for Clearleap APIs based on OAuth.

Kista, Stockholm, Se

As a member of the architecture team, was responsible for the architecture of VOD products such as OpenStream and Media Delivery Management System (MDMS), as well as IPTV products such as IPTV Application Platform (IAP) and Multiscreen Middleware (MsMw). Responsibilities included authoring specifications for RTSP (for both RF and IP delivery) and HTTP interfaces, VOD Content Metadata Specifications, Offering Management and CA/DRM Integration Design. Recent experiences with over the top (OTT), multi screen and HTTP adaptive streaming, RESTful interfaces. Some experience with Ruby over Rails.

Kista, Stockholm, Se

Architect and lead developer of the VOD portal back end J2EE component of IPTV Application Platform (IAP). Implementation required development of a distributed task management core service for distributing and managing heavy processing tasks across a cluster.Was a member of the IPTV team for Tandberg TV integration of OpenStream with the Ericsson IAP product. Responsible for architecture, design and implementation of RTSP interfaces for streaming session setup, HTTP interfaces for content download session setup, a service providing CA/DRM needs for content protection supporting pluggable adaptors implementing interfaces to external CA/DRM systems, specifically Verimatrix, SecureMedia, NDS and Conax. Also led development of the VOD App component of IAP, providing an EJB interface to IAP, caching OpenStream services, catalogs, categories and offerings. Built a MapReduce framework in EJB for distributing tasks across a cluster. Experience with Java 6, EJB 3.0, Glassfish, Sun App Server, TopLink Essentials, EclipseLink and web services.

Us

Was a member of the OpenStream development team. Responsible for taking the lead role in architecture, design and implementation of the OpenStream video on demand (VOD) product for both ISA and NGOD standards. Responsibilities included development of session resource manager (SRM), CA management and OpenCAS interfaces, DSM-CC and RTSP interfaces, as well as equipment and network modeling for a rearchitecture of the SRM for NGOD including such features as QAM selection and stream service SOP load balancing. Also responsible for managing a development team of ten developers and integrators. Experience with Java 5.0, JPA, NIO, JUnit, some struts and some JSP.

Us

Member of the AdPoint team. Responsible for implementing a real-time auction for advertising slots in video to be played on demand (VOD). A challenge in this project was to implement a cache of objects related to the auction to meet performance requirements that all advertising slots be allocated in 50ms. Experience with Java 5.0, JBoss, JUnit, BeanShell and the BSF Manager.

Oslo, No

Technical lead in the Switched Digital Video (SDV) project. Led the development of the first release of SDV. Responsibilities included defining the object model in EJB 3.0 and providing an EJB infrastructure for UI development, as well as implementing SDV server, including the Channel Change Message Interface Specification (CCMIS), bandwidth management, a persistence layer based on the object model, QAM interfaces and the Mini-Carousel per Time Warner and Aptiv specifications. Experience with Java 5.0, EJB 3.0, JBoss, JAXB, SNMP, Flavor, SPTS section carousels.Architect and developer for the Distributor project. Implemented a server to download Open Cable Application Platform (OCAP) implementations (CVT messaging) and applications (XAIT messaging). Download mechanisms included section and object carousels as well as out of band through HTTP interfaces on headend controllers. Responsibilities also included defining the object model in EJB 3.0 and developing an infrastructure for UI development, including server-side validations and queries with filtering. A primary initiative was to implement a subscription and distribution model for code objects and related objects to be propagated from a national repository to central distributor to regional distributor and, finally, to local distributors. The distributed object model was built in EJB 3.0 and implemented using JMS. Experience with Java 5.0, EJB 3.0, JBoss, JUnit, JAXB, JMS, Flavor, Ant, CruiseControl, section and object carousels.

Dallas, Tx, Us

Partner with Network Planning organization. Most recently responsible for building middleware for the Optical Network Design Tool (ONDT) that is used to route OC-48’s in the core network. This was implemented in Java using Web Services Definition Language (WSDL) for defining the application interfaces. On the back end, Java Native Interface (JNI) was used to communicate with back end servers using Unix queues. Also responsible for the development of a Capacity Tool for the CNI network that projects OC48 and OC192 link usage into the future to anticipate link exhaustion and proactively plan new link expansion. Experience with Java, CNI network snapshots and least squares regression analysis.Member of the RAPID/FASTAR team developing network restoration software for AT&T. Primary responsibilities including development and testing of the communications subsystem, development and maintenance of a tool to integrate the Orbix event loop with the libE internal messaging system (OrbixEIntegrator), maintenance of the Orbix-Versant object adaptor (OVA), development of a thread filter for Orbix and leadership in addressing thread safety issues, development of a low-level memory analysis tool for identifying and tracking memory leaks, implementation of an interface providing services for broadcast video events, and performance tuning. Experience with CORBA and C++, event-driven programming, HP-UX threads, Versant.Member of the Object-Oriented Technology team of the Architectures, Objects, and Platforms (AOP) division. Assigned as architect and lead developer to the Strategic Planning Initiative (SPINE) team.Participation in a reengineering and feature enhancement of AT&T’s Transport Mechanized Provisioning System (TMPS). Obtained expertise in C++, event-driven design and development methodology, system architecture issues, n-tier architecture, object modeling and implementation, data layer interfaces, requirements gathering, and system testing.

Dallas, Tx, Us

Participation in the life-cycle of releases of AT&T’s Transport Mechanized Provisioning System (TMPS). Obtained experience with C coding in a client / server environment on a Unix platform, the team approach to development, source code control, Oracle, SQL, and provisioning ports on DACS frames. Involvement in design, design review, coding, code reviews, unit testing, integration testing, and system testing.

Oak Ridge, Tn, Us

Sponsored by Federal Highway Administration (FHWA), Department of Transportation (DOT), Department of Defense (DOD) and Federal Emergency Management Agency (FEMA), responsible for participating and providing direction in the development of Microsoft Windows applications for the Intelligent Vehicle / Highway Systems (IVHS) research group. Obtained experience with Borland C++ with Application Frameworks, Object Windows Library (OWL), Microsoft Windows SDK and API, and object-oriented programming methodology.

Greenbelt, Md, Us

For the Laboratory for High Energy Astrophysics, participation in an effort to move cosmic ray data processing software from an IBM mainframe to a Unix workstation environment for processing data received from Voyager, Pioneer and ISEE/ICE spacecraft. Adapted the Pioneer Data Reduction Program (PIODRP), Flux Database Generator (FLUXDBG), and other utilities (PFRTPL, PRNPHA, and FLXLST) to the Sun workstation. Experience with Unix, C, Bourne shell, C shell, FORTRAN, IBM JCL, and IBM 360 assembly language.

Postdoctoral, Transportation Analysis

Doctor Of Philosophy (Ph.D.), Information And Computer Science

Master Of Science (M.S.), Information And Computer Science

Bachelor Of Science (B.S.), Mathematics

Education record

Education record