Sergei Ryabkov Email & Phone Number

New York, Ny, Us

New York, New York, Us

40% of my time between November 2017 and April 2018, 100% of my time in May - September 2018 A DevOps/IAC consultant helping an engineering team of ~10 developers to build a "software delivery factory". My focus was on cloud infrastructure provisioning using Terraform/Terragrunt, engineering and implementing the software release process and tooling, and setting up CI/CD pipelines. Below are examples of my deliverables:• analysis and recommendations on software/tools for source control, CI, package and binary artifact repositories, library and application/services packaging, infrastructure provisioning, cloud providers, configuration/secret management and CI/CD workflows• Terraform modules for Google VPC (with VPN, Cloud Router and a VPN tunnel to on-prem) and a Kubernetes cluster • Terraform modules for Azure vnet (with Azure VPN gateway and a VPN tunnel to on-prem) and a Kubernetes cluster• configuration scripts for SonicWall hardware appliance (router/firewall) to configure VPN tunnels to GPC (developed using 'expect')• CI/CD pipelines for TypeScript/JavaScript project using GitLab, later on switched to GitHub + CircleCI• shared CI code repository using bash and Python. This code is used to consistently build/test/verify applications/services created using TypeScript/React and .NET Core60% of my time between November 2017 and April 2018Finishing up the project to develop the Continuous Delivery (CD) framework for internal applications using SQL Server Data Tools, Integration Services, and Cisco Tidal scheduling software for Mizuho Securities.

Tokyo, Japan, Jp

• Led an eight-developer on-site/offshore team to develop a Continuous Delivery (CD) framework for internal applications using SQL Server Data Tools, Integration Services, and Cisco Tidal scheduling software and converted existing integration processing to the new framework. Had architecture, design, development and project management responsibilities. • Refactored internal .Net shared libraries to make them available as NuGet packages via a binary artifact repository. Established CI for existing AngularJS/ASP.NET WebAPI web applications. Worked on establishing CD for the web applications.• Developed web-based applications, managed a small team. Introduced asynchronous processing and asynchronous UX through using ActiveMQ messaging infrastructure in an AngularJS/ASP.NET Web API application.

New York, Ny, Us

Led the cross-functional team of ~30 developers and test engineers in delivering on-time, quality releases of Medidata Rave, the company’s flagship product and primary revenue driver used for collecting and managing clinical trials data. As a result, between 2011 and 2015, the company was able to grow its revenues from ~$145 million to ~$392 million (28% annually) and the number of customers from 271 to 611.• Led product design; reviewed requirements, design proposals and implementation pull requests. • Drove the adoption of automated testing, continuous integration, continuous delivery and technical debt reduction, which resulted in faster feedback cycles and more frequent releases. Over the 3.5-year period, my team increased the number of automated SpecFlow feature files from 0 to ~2,000 and decreased validation time from 8 to 1.5 weeks (5.3x).• Created an effective engineering recruitment team which redesigned the screening and interview process, which allowed us to better simulate the actual work environment and gain additional insights into the candidates. As a result, we were able to identify, attract and hire high-quality better-fit engineers and efficiently grow the team without resorting to impersonal recruiting tactics. • Managed recruitment, retention, continuous performance feedback, annual appraisals, training, career development and compensation. Mentored engineers and managers. • Led the effort to regularly measure and optimize application performance.• As a member of the Medidata platform architect group, worked on creating a cohesive microservices-based Medidata platform. • Managed escalated product support issues• Partnered with Service Delivery on infrastructure, security and deployment issues. Managed relationships with other teams and vendors. Represented the company and the team during client audits. Assisted Legal with a patent litigation case; assisted Finance with claiming tax credits.

New York, Ny, Us

• Led two teams of software engineers in the Visualizations, Analytics and Reporting portfolio.• Helped shape Medidata’s Business Intelligence strategy using SAP BusinessObject and SpotFire.• Recruited and coached software developers.

New York, Ny, Us

• Led a team of software engineers working on Rave reporting and BI features. • Designed solutions; developed and tested software; troubleshot and resolved problems. • Served as Rave development DBA. Optimized performance. Mentored other developers on SQL Server and T-SQL. Introduced schema and core configuration and reference data migration methodology and tools.

New York, Ny, Us

• Architected, developed and maintained two major components of Medidata Rave.

Irving, Tx, Us

• Developed sales and marketing data mart for the corporate data warehouse. Designed and implemented databases for other corporate systems. • Planned, deployed and supported mission-critical enterprise-level database servers and applications.

Irving, Tx, Us

• Managed hosting for all NCH internal and third-party web applications.

Irving, Tx, Us

• Developed document management and catalog/order entry web-based systems using ASP and SQL Server.

Irving, Tx, Us

• Provided technology solutions to NCH offices worldwide and advised them on best practices.• Developed a reliable and completely automated system to collect daily sales information from NCH subsidiaries in 40+ countries over dial-up connections.

Mba With Distinction

Equivalent To Master'S Degree, Applied Mathematics