# Walter T. > Software Engineer Location: Brooklyn, New York, United States Profile: https://flows.cv/waltert I'm a software engineer experienced in building applications across the stack. I started off my career as a chemical engineer but grew to love the accessibility and pace of software. While I'm no longer designing piping systems or working with P&IDs, my passions haven't changed -- I love solving problems and I love building things. ## Work Experience ### Senior Software Engineer @ MongoDB Jan 2024 – Present | New York, New York, United States ### Senior Software Engineer @ Brex Jan 2022 – Jan 2024 • Developed and implemented an automated budget provisioning system, streamlining the bulk budget creation process, and reducing manual workload for controllers and customer support • Led complex migration to new Budget Distributions framework, resolving critical system blockers and paving the way for next-generation budget features across the platform • Extended the Budgets ledger with new flexible accounting models, executing large-scale data migration, and enabling dynamic budget restructuring and error correction workflows • Developed comprehensive budget override system, enabling both multi-entity spend optimization and more flexible spend categorization for customers • Facilitated the onboarding of new hires and improved their productivity by providing training and support to quickly ramp up on company tools and processes ### Senior Software Engineer @ Squarespace Jan 2020 – Jan 2022 | New York, New York, United States • Planned and executed the development of a new enterprise dashboard enabling enterprise accounts to manage multiple scheduling accounts • Modernized the Scheduling service by introducing concepts such as dependency injection to the backend and adding type safety to the frontend by introducing TypeScript • Increased observability of the scheduling codebase by adding logging to the application via Monolog and AWS Cloudwatch • Improved CI/CD pipelines by parametrizing QA instance builds, initiating work to decrease Docker image sizes, and instrumenting tests runs to monitor for flaky tests • Developed a flexible spam detection framework to combat email spam caused by appointment reminder emails • Collaborated with the security team to identify and eliminate vulnerabilities in the scheduling codebase • Instrumented the client scheduling page to allow the analytics and product team to better understand client behavior • Assisted the growth team's effort to internationalize the entire Scheduling service ### Senior Software Engineer @ TripleLift Jan 2019 – Jan 2020 | New York, New York, United States • Led a team to reimplement the creative ingestion and audit workflow, bringing consistency to the time-to-audit for external creatives as well as reducing the average time of audit by roughly 50% • Collaborated with product managers to design a validation framework to automatically audit external creatives and enhance manual audits, reducing the average audit time of creatives • Introduced canary deploys to the build system, allowing developers to test in production • Improved developer experience by adding new tooling (XDebug, ORM, Redux Dev Tools), upgrading application languages (PHP 5.6 to 7.2), and adding new metrics and Grafana charts • Gave a tech talk about React which walked through the core concepts of the virtual DOM • Mentored and guided interns, new hires, and younger employees by holding 1 on 1s, providing career guidance, and pair programming ### Software Engineer @ TripleLift Jan 2018 – Jan 2019 ### Software Engineer @ Course Hero Jan 2016 – Jan 2017 | Redwood City, CA • Developed and designed portions of an internal CMS which content developers use to create Course Hero study guides • Designed and implemented a publishing workflow that allows internal users to upload videos to multiple video platforms and display the videos on the site • Coached and mentored an intern whom we hired on as a contractor upon the end of the internship, increasing the bandwidth of our team • Introduced Webpack and hot reloading to the JavaScript build system, greatly improving developer experience ### Associate Engineer @ Savannah River National Laboratory Jan 2013 – Jan 2015 | Aiken, SC • Improved cycle time of the weekly report process 85% by identifying, restructuring, and automating time consuming procedures • Built an hourly financial tracking framework, significantly reducing process errors while cutting project time from days to hours • Redesigned the flammable gas distribution system to limit maximum flow rate by sizing orifices and adjusting operating / failure pressures to comply with new safety standards • Wrote and issued formal calculations on subjects ranging from the disposal of fissionable nuclear material to the diffusion of volatile organic compounds • Wrote, edited, and approved work procedures for the maintenance and operations staff ### Marketing Intern @ GE Energy Storage Jan 2012 – Jan 2012 | Schenectady, NY • Researched industrial motive markets and reached out to potential clients which led to new pilot projects for the motive team • Developed a value proposition model for GE battery equipped delivery vehicles as opposed to lithium and diesel powered vehicles ### Quality Support Intern @ GE Transportation Jan 2011 – Jan 2011 | Erie, PA • Aided in product quality data analysis by obtaining failure data from returned components, searching for trends by comparing current data to past fiscal quarters, and presenting conclusions • Automated and updated Microsoft Excel spreadsheets by writing macros in VBA, greatly improving the efficiency and accuracy of data entry ### Research Assistant @ Orthopaedic Associates of Michigan Jan 2010 – Jan 2010 • Created a database of spinal trauma cases from data in the Spectrum Health Hospital system • Researched the success rate of the X-Stop surgical procedure by tabulating the return of chronic pain in patients that underwent surgery ## Education ### Bachelor of Science in Chemical Engineering Cornell University Jan 2009 – Jan 2013 ## Contact & Social - LinkedIn: https://linkedin.com/in/waltertan12 --- Source: https://flows.cv/waltert JSON Resume: https://flows.cv/waltert/resume.json Last updated: 2026-03-22