Samuel Leon Email & Phone Number

Littleton, Co, Us

Littleton, Co, Us

Bethesda, Md, Us

Lawrenceville, New Jersey, Us

• Created ETL data ingestion pipelines to handle customer data received via FTP to be processed by the BillTrust product. Created and adjusted customer sites & branding. Performed SQL database analysis and updates, to correct errors in previously processed data, and to accommodate requests that the product cannot handle natively. (Python, Java, mySQL, HTML, CSS, Groovy, GMC Inspire Designer/Automation)• Diagnose, troubleshoot, & solve production build failures via data analysis, and customer‑specific implementation decomposition. Using the opportunity to resolve long‑standing maintenance issues and to on‑board junior resources in the process.• Advocate for innovation and process improvement: resulting in a shift from manual Salesforce queues to JIRA Kanban boards. Fixes to legacy (customer facing) failure messaging to reduce case load. Automated Google Sheets SRD to improve process efficiency. (Google Apps Script)• Created a desktop application to do XML XSD validation; to faster debug malformed customer‑provided XML files, to be used by developers and the eOperations team, to reduce overall case load and to shorten average case length. (Python, tkinter, lxml)• Reverse Engineered/documented functionality of the C++ code (maintained by separate team), to enable work without lengthy knowledge transfer from seniors/external resources. Mentored junior resources, using feedback to improve/produce new docs (on‑boarding & day‑to‑day responsibilities) for future devs in support of recent move to remote work. (Iron Python, MySQL, HTML, C++)

Falls Church, Va, Us

• Promoted to Software Lead for separate TESLA (Tactical Emulation for Software‑in‑the‑Loop Assessment) team, to integrate and complete a green‑field hardware emulator for use in conjunction with Ballistic OPIR infrastructure. (C++, CentOS, RHEL).• Improved the MDST (Missile Defense Space Warning Tool) simulation’s parity with current and future capabilities (C++, Linux).• Created a new SDLC process to enable team to operate at secondary facilities during COVID, enabling our teams to work in parallel, when operating in disconnected, unnetworked environments with infrequent syncs (git hooks, repo strategies, remote CLI syncs)• Developed a tool to retrieve simulated real‑time missile data to dynamically generate code & other internal data formats for use in mock tests, to produce more accurate behavior emulation where simplified faux data was used previously (Java, JavaFX, JDBC, JUnit, MariaDB).• Implemented solution to parameterize simulation configuration info to enable backwards compatibility and increase fault tolerance when using varied communication formats, reducing future maintenance costs and workload (C++, Xerces).• Increased breadth of capabilities of simulated response during event execution (C++).• Automated the addition of classification banners for end‑of‑contract document deliveries (Python‑generated HTML).• Presented training on Kubernetes, Docker, Kafka and GoCD to improve team understanding of existing CI/CD pipelines.• Worked with team managers to resolve retention issues, resulting in regular skip‑level meetings between product line owner and stakeholders

• Created tool to perform cleanup, analysis and visualization of historical hospital data; doing root‑cause analysis of RFID chip‑read failure duringtransportation of pharmacological items in hospital/pharmacy pneumatic tube systems (Python, pyQT, matplotlib, Pandas, Windows).

Boulder, Colorado, Us

• Course assistant teaching two courses: Intro to Computer Science, and Data Structures. Held office hours, previewed exams & assisted students with HW.