David Marczinus

Software Engineer

Helping Siemens build next-generation interfaces in an as of yet unrevealed project in the human-machine interface space.
Technologies used: Angular, TypeScript, .NET

Built a new team of developers during the onset of the global pandemic, acting as the hiring manager for the team.
Lead a completely remote team of 4 developers, providing feedback and advice to facilitate their career and personal growth.
Managed the technical and product roadmaps of the team's deliverables, communicating requirements and timelines between the business and engineering
Provided department-wide technical vision for both a legacy WPF-based trading application and the web-based UIs that were in development as replacements for legacy applets.
Delivered a heavily opinionated Angular starter project with extensive documentation and accompanying Jenkins delivery pipelines to help teams across the department get started with web development that aligned with the technical vision I set out -- this starter project was picked up by 4 teams across 4 regions within the department.
Technologies used: TypeScript, Angular, C#, WPF

Mentored multiple intern/bootcamp level developers from the start of their careers to junior/mid level.
Coordinated the platform and infrastructure upgrades, and deployment of said upgrades of 3 business critical WPF GUIs across 3 functional teams.
Delivered a new proposal/amendment flow within a legacy trading system to significantly reduce the time and effort required by trading and operations to address incorrect trade bookings.
Championed unit testing and good testing practices in a team that was lacking in both, increasing test coverage from below 50% to 95%+ on new projects while also fixing all previously unreliable tests.
Provided direct, hands-on support to clients in equity securities trading, sales and operations.
Facilitated technical and team fit interviews as the primary interviewer for candidates ranging from junior to senior and above.
Technologies used: C#, WPF, Python, JavaScript, AngularJS

Attended the Morgan Stanley Tech Analyst Program in New York and London, learning both company-specific and general engineering best practices.
Developed a Scala compiler plugin that could generate the TypeScript client code for Scala APIs for the Morgan Stanley Development Environment team
Technologies used: Scala, TypeScript, C++

Developed a bespoke automated deployment solution for monolithic, legacy services in the equity securities area as an intern project to reduce the manual work necessary for production and QA releases.
Technologies used: C#, WPF, Python

Specialized in modern databases and data warehousing
Thesis: Version control statistics and code coverage as potential metrics of code quality