Gergely Fejer Email and Phone Number

• Developed cloud-native storage solutions to support migration of server solution to Azure.• Design and develop REST API in C# for Azure Functions and ASP .NET to configure and expose Azure NetApp Files and Blob storage for use by processing applications.• Configure CI/CD pipelines in GitHub Actions and Jenkins.• Lead feature team in designing, implementing, and deploying isolated sub-account feature.• Implemented prototype temporary storage feature that was deployed in Docker container.

• Develop features for a secure IPv6 overlay network that secures IoT communication while simplifying device provisioning. • Developed REST API in C++ for embedded system to allow for configuration and control of router card. • Implement Infrastructure as Code (IaC) to configure AWS servers. Wrote and modified configuration scripts using Ansible, Packer and Terraform. • Wrote and ran unit and integration tests in Python for continuous integration & automated build and test using CircleCI • Developed Command Line Interface (CLI) features in Ruby. The CLI interfaces with REST APIs of several different servers. • Architected dedicated router-card control system that allows configuration of thousands of devices efficiently and with few commands. • Implemented server-side feature in Erlang. • Wrote and maintained documentation for both internal and client-facing APIs.

• Drive new feature development on existing product through all phases of development including design, implementation, test automation, approval process, customer-integration, and training.• Follow Agile/Scrum process to plan and manage development.• Developed messaging subsystem for complex graphical simulation tool using cross-platform tools such as Qt library and Python.• Migrate Windows-based library to be ANSI C++11 compliant.• Implemented continuous-integration and testing strategy for legacy product using Jenkins, Robot Framework, and Python scripting. • Troubleshoot, debug, and maintain existing C++ / Windows / SQL application in response to customer requests and tickets. Work with customer to implement fixes or workarounds on schedule and within budget.

• Designed, and implemented Milliman’s custom distributed computing platform C-Squared. Coding was done in C++ and Java. • Manage customer installations and customizations of distributed computing platforms.• Designed and implemented compatibility layer that enabled Microsoft HPC platform to run jobs that were originally coded for C-Squared to run without modification. Coding was done in C#.• Diagnose and debug C-Squared and HPC installations of up to 1200 nodes.• Adapt compute-node code from Microsoft Azure to run on Amazon Web Services (AWS) while still communicating with scheduler node running under Azure.• Modified Microsoft Azure solution to run on in-house compute grid for clients that desired not to run in the cloud.• Created Perl scripts that automated clients’ jobs including collecting data, submitting jobs to the grid, and processing results. The scripts worked with C-Squared, Microsoft HPC and Microsoft Azure.• Work directly with clients in all phases of projects – collecting requirements, implementation, installation, and ongoing support.• Help quantitative analysts to debug code and improve efficiency.• Refactored ETL (Export, Transform, Load) procedure using Oracle PL/SQL stored procedures to improve runtime by a factor of 4.

• Led verification team in designing an object-oriented testing framework; greatly increased test coverage from previous projects. Implementation language was C++ under Unix.• Designed and implemented an emulator module that allowed the software development team to test new software before hardware was available. Coded emulator in C/C++.• Implemented new testing methodologies that cut the average time to identify a design fault by 50%.• Designed and implemented a reusable test bench that eliminated the need for individual designers to write their own tests; reduced testing effort by more than 60%.• Defined requirements for verification and wrote comprehensive test plan for a hardware accelerator.• Created focused tests for wideband CDMA signal processor module.

• Created object-oriented design for a large software system; created a model for others to follow.• Led development team to successful delivery of new feature, ahead of schedule, with no defects.• Led expertise-team which maintained and enhanced the network-interface subsystem with a perfect track record of causing no system downtime.• Developed real-time message processing functionality for the IS41 Visiting Location Register (VLR) using C++ under Lynx O/S.• Implemented quality assurance (QA) processes for high-availability system. (5 nines or 99.999%)• Devised innovative procedure to collect and analyze failure data from a diskless system; enabled the analysis of system outages which were previously impossible to diagnose.• Led several teams in troubleshooting production and test sites; quick resolution of customer outages saved more than $70,000 each hour.