Rey Chavez Email & Phone Number

Texas, United States

Chicago, Illinois, US

New York, New York, US

* Streamlined the team's work intake process from multiple systems (Slack, Jira, Zendesk) to one in order to better manage, track and communicate progress on tasks and projects* Collaborated to gather and review feature requirements and user stories, provided estimates, created design specifications, and collaborated with engineers and SMEs to assess.

Dallas, Texas, US

* Interviewing, strategic hiring, and hands-on training of new team members* Troubleshooting and resolution of high-priority issues along with team* Configuration and maintenance of our SaaS products' reverse proxies, load balancers, service meshes and messaging queues implemented through Nginx, HAProxy, Hashicorp Consul, RabbitMQ* Creation and maintenance.

Addison, TX, US

* Designed and directed a team of two software engineers in the integration of a SaaS-based search engine solution into the customer-facing home page of a major online home services provider* Worked as part of a team on the website rebrand of a major online home services provider

Emeryville, CA, US

• Responsible for Jenkins end-to-end setup including implementation and build job development for all components of an Android mobile phone application. Utilized a Docker-based Jenkins server and configured it to use.
• Migrated Jenkins from bare metal server to AWS's Elastic Container Service, and created Terraform scripts to ensure set-up and tear-down was reproducible and easily maintainable
• Designed and implemented automated process for daily backing up of Jenkins configurations in GIT, and easy restore/replication of the Jenkins server using a Docker image
• Implemented various security features (credential store, non-root and sudo-based Linux access, LDAP authentication) onto our Jenkins server and the Docker images used for builds
• Creating & maintaining Docker-based build and development environments (packaging development tools, SDKs, libraries, and applications into images for ease of use)
• Created a tool framework using bash shell that allowed developers to easily use Docker-based development environments without Docker-specific knowledge. Tools ensured the most recent versions of the Docker image and.

Fort Myers, Florida, US

• Implemented department-level initiatives which significantly increased the stability and maintainability of our products. Examples include: - Mandating code coverage targets to ensure work is carefully tested before.
• Conceived and implemented a strategy for researching open-source technologies and platforms (Docker, Hadoop, etc.) for possible use in our products for the purpose of becoming more efficient and effective, and.
• Initiated and implemented a Docker proof-of-concept to show how containerization makes development, QA, and deployment processes more efficient and less prone to errors and outages
• Implemented a web application using Ruby on Rails for managing pre-sales questionnaires and generating sales proposals based on those questionnaires, then took the initiative to package it into a Docker image for easy.
• Interviewing, hiring & terminating, performance appraisals, rewarding & recognizing, resolving issues, and the structuring of teams
• Work with product managers to analyze requirements as well as scope and prioritize work

Fort Myers, Florida, US

• Proposed, architected, and lead a team to implement an automated test platform for testing SS7- and IP- based products. Written in Perl, it provided APIs for sending, receiving, and verifying protocol messages from the.
• Supported and enhanced administrate and reporting user interface (UI), written in Ruby on Rails, for Short Message Service Center (SMSC).
• Designed and implemented the Session Initiation Protocol (SIP) Transaction Layer as defined in section 17 of RFC 3261, leveraging the Finite State Machine design pattern for greater algorithmic efficiency and enhanced.
• Designed and implemented the Message Session Relay Protocol (MSRP) as defined in RFC 4975, leveraging the Message Factory and Message Interface design patterns among others as well as the LibEvent software library for.
• Conducted interviews and phone screens with potential new hires.
• Trained and mentored new employees.

Canton, MA, US

Designed and Implemented a 3 KLOC tool using TCL/Expect which interrogated hardware configurations

CA

• Reverse-engineered then enhanced an undocumented 7 KLoC desktop application used for system configuration and monitoring. Application was written in Java and Swing for Windows, and was enhanced to generate network.
• Developed a set of technical documents detailing backup/restore and security hardening procedures on the Nortel Ethernet Routing Switch (ERS 5000) for use during the application installation process.

CA

• Acted as the project lead for a team of nine software engineers developing a real-time embedded high-availability application for the purpose of allowing a wireless mobile phone provider to transport its legacy SS7.
• Project lead duties included leading document reviews and design discussions, ensuring all project requirements were addressed, ensuring all hardware and test tool requirements were met, answering protocol &.
• In addition to project lead role, served as a developer writing 90% of the High Level Design document in conjunction with the architect. Designed and implemented the M3UA Signaling Transport specification (which made.
• Involvement with this project was throughout the entire software development cycle, from analyzing functional requirements to field deployment and support.

CA

• Designed/implemented 2 KLoC worth of enhancements to a real-time embedded API for communicating with a remote Home Location Registry in a wireless mobile phone network, as part of a feature for calculating the location.
• Designed a cyclic redundancy check (CRC) API, usable in a real-time embedded system, for detecting memory corruption out in the field. Later integrated its use into 20 thousand lines of code.
• Department lab coordinator; responsibilities included configuration and maintenance of Nortel Passport 15K-based GPRS and UMTS SGSNs, including ARP & IP network configuration, for use in automated traffic testing.

CA

• Gathered requirements for, designed, developed, documented, and supported real-time distributed applications for simulating GSM, GPRS, UMTS, & SS7 protocol network nodes for the purposes of automated product testing.
• Supported and enhanced a protocol message database user interface (UI) used to perform canned database queries.
• Provided 1st and 2nd-tier customer support for internal test groups, troubleshooting and debugging issues, communications with customers, and case documentation.
• Design and development work done using C++ and Java for HP-Unix, Red Hat Linux, and VxWorks.
• Mentored junior engineers and new graduates.