Mark Castillo Email & Phone Number

Sacramento, CA, US

San Francisco, CA, US

As a Sr. Customer Success Architect at GitHub, I drive customer success through technical guidance and strategic planning, specializing in GitHub Copilot AI and Advanced Security. My proactive approach fosters product adoption and retention, with tailored adoption plans and roadmaps enhancing customer engagement with GitHub's suite of features.I provide.

Newark, California, US

At Privacera, a Silicon Valley startup, I held a pivotal role as a Sr. Solutions Engineer, spearheading pre-sales engineering for PrivaceraCloud and Privacera Platform. My role was a unique blend of technical prowess and customer engagement, which involved seamless collaboration with Account Executives, Engineering, and Product Management during the sales.

San Francisco, CA, US

At OverOps, a dynamic San Francisco startup, I played a pivotal role as a Solutions Engineer, bridging the gap between pre-sales and post-sales activities for our enterprise clientele. My responsibilities encompassed working closely with sales representatives to expand accounts and secure renewals, a testament to the trust and success we cultivated with.

Santa Clara, California, US

As a solutions engineer at Hortonworks, I worked alongside sales account managers on demos, POCs, and other pre-sales activities for the Hortonworks platform. I engaged customers in architectural discussions to envision the end goals for the POC use cases and designed architecture involving the careful selection of HDP components.Technologies: Hadoop, HDP.

New York, NY, US

At Gap, I served as a Software Iteration Manager and Scrum master for software development teams based in San Francisco and Brazil.

As a Sr. Solutions Architect at Driven Inc., a San Francisco startup, I was a key player in the product lifecycle, from orchestrating pre-sales demonstrations to providing post-sales technical support. I served as the primary technical liaison for Driven, Cascading, and Scalding, offering comprehensive developer support that included code samples.

San Francisco, CA, US

At LOYAL3, a pioneering FinTech startup, I held the dual roles of Senior Software Engineer and Technical Lead. I was instrumental in developing a microservices architecture that utilized a diverse array of languages (Scala, Clojure, Ruby, Go), and was deployed both on-premises and on AWS.As the Technical Lead for the SMS project, I ensured the timely.

Oakland, CA, US

At Pandora, I held the position of Senior Data Engineer in Analytics. My work was primarily focused on Data Engineering using Hive, Python, and Hadoop. I managed a data warehouse of approximately 6 petabytes, spread across ~300 HDFS nodes, and it was expanding rapidly.My responsibilities included researching ways to enhance cluster performance on legacy.

Waltham, MA, US

As a Senior Software Engineer at Constant Contact, I was a key contributor to the server-side development of the Social Campaigns product launched in early 2012. I was part of a dynamic team, working on full lifecycle software development within a distributed, service-oriented architecture.My primary projects involved leveraging the Facebook API.

Waiblingen, BW, DE

In my role as a Senior Software Developer at Bosch Healthcare Solutions, I initially focused on integrating legacy systems using the HL7 protocol and developed extensive testing and simulation tools. A significant project involved integrating messaging for the VA hospital system, utilizing Oracle databases and custom queueing applications.In the subsequent.

Menlo Park, California, US

As a Senior Server Engineer at RedSeal, Inc., I was primarily involved in system integration projects on a Linux-based network appliance. My responsibilities included working on the data access layer and developing protocol adapters for Cisco router integration.Technologies: Java 1.4, C, MySQL, Spring, Hibernate, and EJBs.

US

As a Senior Software Engineer at Digeo, I played a pivotal role in developing an integration platform for delivering Video-on-Demand (VOD) functionality for the Moxi digital cable box, a Linux-based appliance. My key contributions included working on XML-RPC protocols and service endpoints, with a focus on the movie selection menu and purchasing workflow..

US

Technical Founder and Lead Developer Silicon Valley Startup Employee #11Embarked on an exciting journey as a technical founder in a Silicon Valley startup, where I spearheaded the development of the Sentry real-time server appliance. This innovative product was designed to perform event processing and filtering, maintaining high software quality and.

As an integral member of the technical founding team at SocialNet, I was instrumental in shaping the company’s three-pronged focus: romantic dating, roommate finding, and professional networking. My role as a network and systems administrator involved establishing the development and production environments on Sun Enterprise Servers (E450 and others).