David Leonard Email & Phone Number

Seattle, Wa, Us

Responsible for supporting all of the software services and platforms that builds, operates, monitors and assures the AWS network:• Owned delivery of 170 networking services during build• Grown and developed the team from 4 to 8 engineers (still growing)• Building an operations model for 24/7 support of services• Metric delivery and analysis focusing on reducing manual operations through automation• Manager for software development of a microservice for automated provisioning and management of network devices

Madrid, Madrid, Es

Advocate and responsible for engineering best practices as product owner of Engineering Excellence. Leading 4 teams as product owner of devops, QA, metrics and tooling. Collaborated across 28 teams to redefine the entire SDLC and approach to testing their complex AWS based environment with 150+ microservices. Laid the foundation for improving velocity and rapid scaling of the organisation with improved quality.• Reviewed the entire testing strategy and CICD process from unit test through blackbox testing and its connection to the SDLC in combination with a transition from Pivotal Tracker to Jira.• Defined key metrics covering everything from testing, quality, devops insights through to agile working metrics. Led the team developing the tooling to generate metrics using both custom and off the shelf tooling. Presented insights to CTO and leadership team weekly along with actions and proposals for improvement.• Reduced end to end test failures from 30% down to 5% by mentoring each team on the need to make metrics meaningful as well as helping them overcome the challenges causing those failures. • Reduced microservice deployment time by a factor of 10 by reviewing devops best practices including addressing bottlenecks. Currently coordinating better devsecops practices and coordinating with the platforms team to migrate from PCF to kubernetes. • Evaluated external vendors for test suites and devops tooling as well as addressing financing and contracts.

San Jose, Ca, Us

Accountable as product owner coordinating backlog prioritisation across all services within the WebEx Media Platform backend cloud service. Core member of the WebEx media platforms leadership team, leading project management for WebEx media reporting status updates for senior executives together with hosting weekly media platform leadership team calls. • Innovated and implemented new process improvements across senior leadership, team coordination, planning and status reporting of program initiatives. Included hands on python scripting of Jira and confluence to generate automated reports and developed WebEx bot to prompt delivery managers to follow correct workflow process. Resulting in a more transparent agenda process, oversight of progress and roadmap, backlog prioritisation discussions and more efficient use of executives’ time • Saved ongoing costs and improved efficiency through implementation of an alternative method to send media via TLS port 443 where other UDP/TCP ports are blocked. Proposed a modified version of TURN TLS ensuring a fraction of engineering work was required, avoiding adding latency to media path together with zero increase in goods cost• Led multiple features and initiatives as delivery manager and solution architect working across several services, teams and continents/time zones

San Jose, Ca, Us

Collaborated with other service owners, delivery managers and architects to develop end-to-end solution. Simultaneously worked on operational issues including platform scale up, development rollout pipeline implementation, metrics, logging, pager duty and automated monitoring of services health. • Improved efficiency of WebEx media edge service, resulting in supporting 50x the number of video calls traversing the network together with reduction in cost of goods by 50x. Built a new team to increase scale for media to/from WebEx, scaling down the number of public IPs needed, increasing media throughput (bandwidth/calls) per CPU and reducing COGS as part of a next generation architectural initiative in WebEx• Decreased number of bugs, increased developers’ confidence to make code changes and improved resilience to service failures together with accelerated rollout of new code versions. Implemented multiple process changes to media service handling team including improvements to automated testing approach, and review of a more resilient design for traffic redirect through another server in the event of call failures• Acted as a service owner for an established media service (allowing Microsoft Skype for Business clients to join WebEx meetings), and subsequently coordinated service phase out • Recognised for experience in turning around teams with product quality issues, and selected as advisor to another WebEx team experiencing similar problems

San Jose, Ca, Us

Product owner for CMS and simultaneously working as product owner, leading a team of contractors on a new meeting scheduling component following award of funding to scale up rapid feature delivery. Member of the wider UK engineering leadership team, including WebEx together with CMS leaders. Worked on solution level features with product owners for other interfacing products together with product managers and technical architects. Accountable for release planning, feature specification and general development tasks including bug triage, recruitment etc• Stepped into the role at a time of slow feature velocity, late releases and high bug count. Transformed team’s performance with improved processes in feature design and development. Resulting in ability to release three times a year with 95% reduction in customer reported defects and increased feature velocity by 200%. Improved product quality, rescued company reputation within the industry and led to deal wins which would otherwise have been lost without these implementations. Achieved every committed feature and on time delivery of all releases• Improved quality resulting in faster feature velocity through ownership of bugs backlog, features, technical debt across all scrum teams. Balanced work between reducing bugs, improving security, improving test automation, feature delivery and technical debt improvements• Overhauled security improvements process, resulting in improved product security, rapid response and improved maintenance with an overall proactive and faster approach to addressing security issues with high value customers. Acknowledged by Cisco’s principal security advocate for providing a cloud style approach of continuous delivery within an on premises environment. • Expertise as solution consultant for approving customer large scale deployment designs• Worked to outsource the CMS portfolio to a contracted team in India to refocus all UK engineering efforts into WebEx

San Jose, Ca, Us

Technical lead in charge of QA strategy, continuation of QA role in Acano prior to Cisco acquisition. Advised the team on all areas of testing and QA including how to automate new functionality. Worked on improving test methodology, process and tools. Formed a scrum team having previously operated a more waterfall model. Acted as scrum, master introducing agile practices. The teams encompass all aspects of software delivery including both software development and testing

Uxbridge, Gb

Acano, a video conferencing technology start-up founded in 2012 and acquired by Cisco in 2016. Custom hardware was brought to market in year 2 with the option to run on virtualised deployments. Recruited and built a new QA team, involving onboarding and mentoring new hires. Managed new QA engineers and ramped up to a team of eight. Maintained various network systems and infrastructure, and subsequently hired a network administrator to form a new team.• Designed and built an automation framework from scratch, to manage scheduling, resource allocation, execution and result reporting of automated tests using a continuous integration methodology based on a Jenkins build system. Allowing start-up to flourish and enabling it to handle a rapid release schedule. Accelerated release features and provided rapid maintenance releases to address security or other defects. This framework was a key element to the company’s success. Django web front end, docker containers, Jenkins, dgrid, dojo, postgresql and Django• Built a video endpoint emulator written in C++ but using the Python Boost library to expose C++ code into Python for scripting purposes, allowed large scale stress, load and performance testing. Developed a good understanding of python’s GIL and other performance issues. Extensive multithreaded code use incorporating network protocols.• Designed a stress, load and performance test framework consisting of a distributed test platform to simulate high load on network infrastructure

A technology startup which changed name to Acano before initial product launch.

San Jose, Ca, Us

• Joined Cisco after the acquisition of Tandberg for $3.4 billion • Managed a team of three managers and 25 engineers working across a variety of products. • Responsible for QA within Cisco’s TelePresence infrastructure products group. Took a hands on technical role in directing testing strategy. I was successful at improving the test automation infrastructure to reduce our reliance on manual testing. Formed a cross product team focussed on tooling which could be reused.• Managed the team budget, performance reviews, salary / bonus reviews etc.• Responsible for recruitment into the team. Responsible for managing all new software / QA hires into R&D, whether they were joining my group or not. • Involved in the product from design through to release and was instrumental in ensuring our products developed a reputation in the field for quality.

Oslo, No

• Joined Tandberg after the acquisition of Codian for $270 million• Team lead for the QA group in Tandberg’s MCU product. This involved hands on testing both manually but also with an emphasis on improving our automated testing of the product. Led a team of 8 people.

Gb

• Worked on a variety of products including Conference Director, IPGW and the MCU. Conference director was a windows GUI. The other products were custom hardware with specialised video processing capabilities.• Responsible for designing many of the building blocks for our automation environment including the test runner and scheduler. Automation was not a part of the company’s development process before I joined but through my work we were able to transform the quality of the product. • Worked on a video endpoint emulator and various test tools in C++ and Python• Successful in designing a stress testing environment and framework which improved the stability of the product significantly. The product had a reputation for quality and stability after this.• Developed a reputation for testing the SIP protocol during it’s infancy. Before working on this the stack had numerous stability problems.• As with all of my QA roles above, the focus was not just on finding defects but also digging into signalling to determine what was wrong and therefore guide development on how to fix the issues

Phd, Mathematical Sciences

Master Of Mathematics, Mathematical Sciences