RAKIB SHAHRIAR

• Presently at Cisco, contribute to range of virtual networking products spanning cloud environments, data centers, and enterprise branches. Responsibilities encompass ramping up co-located networks, spearheading development of network function virtualization (NFV) infrastructure, and overseeing configuration, management, and control of infrastructure through SDWAN manager.
• Contributed significantly to virtual network hypervisor NFVIS's migration from CentOS to Alma Linux. As software upgrades are extremely important to customers, this work allowed smooth transition of OS migration. In collaboration with platform team, also contributed significantly in upgrade module utilizing LEAPP package for OS migration and library management in target platform. Took ownership of testing CLI commands and features in upgraded version and fixed problematic Python and Linux Shell scripts.
• Built out multithreaded notification module using Python for colocation cluster deployment. This improved customer visibility over 50% on deployment steps.
• Debugged and solved mission-critical bugs and made sure quality of product exceeds expectation by release team
• Took ownership of cross-team collaboration to implement template network configuration push to WAN edge devices from java-based SDWAN Manager. Arranged tech-talks and training session to educate ~35 engineers.
• Collaborating with DevOps and dev-test teams, contributed significantly to harden CI/CD pipeline by improving unit tests coverage by 10%, sanity tests for nightly builds, and end to end feature test automation. Overcame hardware dependencies in end-to-end feature testing with effective collaboration.
• In addition, stayed top of game maintaining hardware testbeds for team members and became GOTO person for obtaining high-demand testbeds
• Mentored colleagues within and across teams. Stayed top of game maintaining hardware testbeds and monitoring their connectivity and performance.
• Established best practices, defined task goals and set up cross-team debug sessions in order to help and resolve issues with faster pace.
• On daily basis, my technical toolkit involves Python 2 and 3, Unix Shell Scripts, GitOps, PyATS, unittest (Python), Docker, Jenkins, ConfD, Neo4j, and Yang.

Worked as a Postdoctoral Associate at the University of Florida. Lead two research teams there related to Blockchain and Digital Twin technologies. The projects were funded by government organizations and are cyber-security sensitive.

• Led a groundbreaking blockchain initiative, overseeing and mentoring team of 4 doctoral students in research and 2 software developers, supported by grant from Air Force Research Laboratory (~$1M USD). Acted as both system architect and DevOps engineer, orchestrating the development of consortium blockchain prototype aimed at safeguarding integrity of electronic supply chain. Successfully showcased prototype at prestigious national security conferences, including GOMACTech.
• Led a research project to develop Digital Twin for Semiconductor Manufacturing and Supply chain. Mentored 2 doctoral students in this project.
• Technology stack utilized for these projects encompassed IBM Hyperledger Fabric, Docker, Kubernetes, Ansible, GoLang, and JavaScript.

• As DevOps engineer for research group, Embraced cutting edge Infrastructure as Code (IaC) methodology, leveraging Terraform to orchestrate lab testbeds. By harnessing Terraform's programmability, Optimized virtual replicas of manufacturing machines within AWS, streamlining lab infrastructure setup and management processes. Timeline: January 2018 - August 2020.
• Installed, configured, and deployed simple, single-node Red Hat OpenStack Platform environment to develop on-premise private cloud for research group testbed. Timeline: August 2016 - December 2017.
• Publications: 4 journals, 10 peer-reviewed conference papers, multiple papers, and ~700 citations from top peer-reviewed journals, conference, and industry white papers.
• As lead developer and architect, designed and developed architecture and prototype of Operable Digital-Twins for physical machines using Three.js, Blender, Github, and Java REST APIs. Created Visible and Operable Digital Twins that remotely monitor and operate physical manufacturing machines in near real-time latency. Lead team of 3 members in this project excluding remote peers and mentors. Timeline: January 2018 to November 2019.
• Designed and implemented Cyber-physical manufacturing cloud (CPMC) testbed that virtualizes manufacturing operations as services in cloud. Developed multiple cloud-based manufacturing applications as proof of concept using Java REST APIs, Spring MVC 4.0, Jersey, AngularJS, Ionic Framework, Python2, GitLab, and Raspberry-Pi Model 2 and 3. Timeline: August 2015 - December 2017.

• Worked as full-stack software engineer and developed 4 challenging products shipped to client production servers right away. Promoted to Senior position in early 2015 due to project success. Lead team of two people in 2015 and worked with Scandinavian customers and peers. Played pivotal role in developing Mediator for transforming and exchanging contents of one digital print media system in cloud to another using Java, Apache Karaf, Apache Camel, Google Guice, Spring MVC, MySql, MongoDB, jQuery, RESTful web services, AngularJS, Ionic framework, AWS SDK, and Auth0 API.

• Worked 2 years as a full-stack software engineer and developed multiple desktop and mobile based applications. Implemented two service-oriented iPhone application to monitor and analyze data of a US based cold chain company using Objective-C, C# and .NET 3.5, and Apple’s BLE technology. Also implemented a 100% bug free daemon appointment scheduling application for Mac OS using Objective-C, and Hudson. Bug free products was ensure through rigorous feature testing and maximum code coverage using OCUnit framework.

• Research & development of VoIP based Mobile Dialer applications for iPhone using Objective-C and Xcode. Doubled performance of the voice codecs such as – g729, and AMR written in C/C++, and Java.