- Developed payments onboarding, checkout, and invoicing features across several Java/Spring/AWS based microservices with gRPC-style APIs; owned all unit, integration, end-to-end testing and continuous deployment of changes via pipelines; reviewed code and designs from peers and partner teams; managed service infrastructure, dashboards, and alerting; weekly oncall rotation.- Pioneered adoption of B2G customers onto Amazon Business and the projected $100MM B2G opportunity by leading the delivery of a new-to-Amazon pilot program for Spanish B2G entities to register, purchase, and e-Invoice compliantly.- Authored high-level design covering changes in 21 services across seven teams; clarified requirements with Product and Program managers across three orgs; led work-stream breakdown and delegated deliverables to junior devs.- Designed and implemented generic invoice routing info gathering API and refactored invoice quality reporting system to be reused across future B2G projects; deep dived and fixed seven urgent UAT bugs to ensure timely pilot experience rollout.- Led team of six developers to launch Consolidated VAT Invoicing features into three new European marketplaces, unlocking 80K new consolidated invoices created for customers and $10MM in new spend in 2022.- Removed 16 development touch-points across systems, hardened new AWS Lambda, DynamoDB, and EC2 based consolidation services to handle 425% increase in requests YoY, transitioned cloud infrastructure and alerting to Infrastructure as Code using CloudFormation and CDK, and presented solutions and next challenges to leadership.- Independently launched the payment selection features of a streamlined Checkout experience for Amazon Business customers in the US, increasing revenue by 1.09% ($92MM) and completing our role in company-wide service deprecation.

- Solved 95% of payment revision issues experienced by Amazon Business (AB) buyers and the source of 40+ customer tickets by independently delivering the “Shared Payment Revision” feature worldwide, increasing AB product sales by 3%.- Delivered project-unblocking solution to hide incorrectly-registered ACH payment methods for team’s S-team goal to enable online ACH payments for invoices; learned Scala, landed and launched contributions to Tier-1, Amazon-wide payments widgets service in the span of 3 weeks.

- Developed new API to enable scheduled invoice payments for Amazon Business customers paying via Direct Debit, leveraging an internal event scheduling service, AWS SQS, and a queue processing service

Space Science and Engineering Center (SSEC), UW-Madison- Independently developed interactive data visualization applications for exploring simulated coronagraph observations of exoplanets.- Used the Bokeh visualization library to display the simulated observation spectra, which can be transformed and updated in real time with a variety of widgets. - Wrote Python scripts to generate figures for meteorological data from a snowfall observation site in Norway.

- Automated reply emails to a Google Form submission, via Google Apps Script and Google Sheets.- Redesigned and populated the course on Canvas, collaborating with the professor to deliver a thorough, customizable, and self-paced course for students.