Pushed for changes to deployment process to reduce frequency of issues with production deployments

Worked with client-facing teams to quickly solve critical production issues and remediate a backlog of historically corrupted data

Designed and led architecture of a new Business Process Model-like state machine for a legacy system to help reduce data integrity issues, improve clarity to our internal teams of what states our Business Objects were in, and ease development

Pushed and implemented solutions for environment parity issues, unit test pass rate / performance problems, consolidation / cleanup of deployment strategy, and other systemic issues creating friction for the team when working with the system

Proposed integration with existing architecture, and pushed to modernize the system with significant benefits to simplicity, ease of development, and scalability

Worked across large inter-organizational units to develop a unification plan for acquired systems

Handled diagnosing complex issues involving many systems: Diagnosed the root cause of TileJSON map tiles failing to load on only Firefox, which was determined to be a HTTP/1 to HTTP/2 reverse proxy bug triggering a buffer overflow bug inside Firefox. Quickly identified the problem area even in the massive, unfamiliar, codebase of a browser

Assisted swapping out legacy code via facades with newer, more flexible approaches.

Greatly improved Engineer & Operations productivity / troubleshooting ability by pushing for system-wide Distributed Tracing, with an improved JSON-based logging approach

Built a Rules-based Calculation Engine for providing a consistent view of a user despite the variety of backing data sources

Built a Graph-based Compiler for dynamically building up Elasticsearch queries based on a simplified user-facing query language

Assisted with hardening legacy services to improve reliability

Collaborated in architectural discussions to ensure new work was done with a maintainable approach

Helped facilitate communication and cooperation with other teams

Provided support to blocked work, and Junior Engineers

Became go-to resource for services others were typically reluctant to touch

Provided immediate support for production issues with legacy services