xanderm

/* build · test · measure */

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// about

Hi, I'm a 20-year-old Computer Science student and developer from San Antonio, Texas. I'm especially interested in low-level systems and building software that makes life better for my friends and I. I primarily work in Linux and most often use Python and Java to turn ideas into practical tools. What drives me most is solving real problems through thoughtful, efficient software. I'm naturally drawn to optimization and guided by a purpose-oriented mindset: if something does not have a clear purpose, I would rather leave it out.

location

San Antonio, TX

school

UTSA — Computer Science

gpa

4.0 / 4.0

experience

SWE Intern · KBR / NOAA

focus

Python · data systems · applied ML

// experience

Mar 2026 – Aug 2026

Software Engineering Intern

KBR · NOAA Satellite Operations (TOWR-S) — Remote

Modernized a production Python expression engine by replacing 8 branch-heavy dispatch handlers with direct operator methods, reducing the core module 31% while preserving behavior.
Built and merged a metadata-driven regression harness with targeted operator suites, external data fixtures, expected-value assertions, PASS/FAIL reporting, and failure traces.
Automated monitoring for 10+ satellite-product families on RHEL and diagnosed stale or missing feeds across 3 pipeline stages using Unidata LDM, timestamps, and logs.

Jun 2025 – Aug 2025

Web Development Intern

Texas A&M-San Antonio ITS — San Antonio, TX

Built and deployed Future Intern, ingesting, normalizing, and de-duplicating 100k+ postings/year from the CoreSignal API into queryable MySQL tables with Node.js/Express.
Forecasted opening cycles for 150+ internship programs using SQL window functions, rolling averages, and historical posting data.

Mar 2019 – Jul 2026

Business Owner

Legacy Lawn Care — San Antonio, TX

Scaled to 30+ recurring clients, $2K+ monthly revenue, and 94% retention while building a custom CRM for billing, scheduling, and client communication.
Reduced customer acquisition costs 30% by analyzing lifetime value, churn, and seasonal demand to target high-value segments.

Aug 2022 – Present

Customer Service Rep / In-store Shopper

H-E-B — San Antonio, TX

Processed 140+ eCommerce orders per shift with near-zero error under tight time constraints.
Triaged out-of-stocks, real-time substitutions, and customer escalations while maintaining a 100% satisfaction rating.

Mar 2026 – Aug 2026

Software Engineering Intern

KBR · NOAA Satellite Operations (TOWR-S) — Remote

Modernized a production Python expression engine by replacing 8 branch-heavy dispatch handlers with direct operator methods, reducing the core module 31% while preserving behavior.
Built and merged a metadata-driven regression harness with targeted operator suites, external data fixtures, expected-value assertions, PASS/FAIL reporting, and failure traces.
Automated monitoring for 10+ satellite-product families on RHEL and diagnosed stale or missing feeds across 3 pipeline stages using Unidata LDM, timestamps, and logs.

Jun 2025 – Aug 2025

Web Development Intern

Texas A&M-San Antonio ITS — San Antonio, TX

Built and deployed Future Intern, ingesting, normalizing, and de-duplicating 100k+ postings/year from the CoreSignal API into queryable MySQL tables with Node.js/Express.
Forecasted opening cycles for 150+ internship programs using SQL window functions, rolling averages, and historical posting data.

Mar 2019 – Jul 2026

Business Owner

Legacy Lawn Care — San Antonio, TX

Scaled to 30+ recurring clients, $2K+ monthly revenue, and 94% retention while building a custom CRM for billing, scheduling, and client communication.
Reduced customer acquisition costs 30% by analyzing lifetime value, churn, and seasonal demand to target high-value segments.

Aug 2022 – Present

Customer Service Rep / In-store Shopper

H-E-B — San Antonio, TX

Processed 140+ eCommerce orders per shift with near-zero error under tight time constraints.
Triaged out-of-stocks, real-time substitutions, and customer escalations while maintaining a 100% satisfaction rating.

// projects

01/08

PitWall

Multimodal AI for Better Repair Decisions.

End-to-end decision platform that routes text and image repair quotes through Llama models, scores urgency and confidence, benchmarks prices, and persists community outcomes.

solo · 8 hours2-model pipeline8 scenarios

FastAPIReactTypeScriptLlamaSupabase

GitHub ↗

visit site ↗

// projects

PitWall

End-to-end decision platform that routes text and image repair quotes through Llama models, scores urgency and confidence, benchmarks prices, and persists community outcomes.

solo · 8 hours2-model pipeline8 scenarios

FastAPIReactTypeScriptLlamaSupabase

View repo →Site →

Who Said It?

Calibrated author-attribution pipeline using 50k TF-IDF bigram features, 5-fold cross-validation, and Complement Naive Bayes across 8 message authors.

40.1% accuracy+17.4 pp54,240+ messages

Pythonscikit-learnpandasNumPy

View repo →

Future Intern

Full-stack data product that normalizes and de-duplicates internship postings, then uses SQL windows and historical posting patterns to forecast opening cycles.

100k+ postings/year150+ programs

Node.jsExpressMySQLSQL

Site →

Buckets

Keyboard-first personal-finance engine for accounts, transactions, virtual envelopes, transfers, reusable templates, and period-based cash-flow analytics.

5 financial entities9 hotkey templates

PythonTextualSQLAlchemySQLite

View repo →

MonkeytypeCard

Flask web app generating customizable SVG stat cards from the Monkeytype API with an interactive browser-based builder.

60+ themes

PythonFlaskJinja2HTML/CSS/JS

View repo →Site →

HEB Job Alerts

Automated pipeline that paginates H-E-B's careers API, ranks listings with weighted keyword scoring, and emails personalized results on a daily GitHub Actions schedule.

daily automationweighted ranking

PythonREST APIGitHub Actions

View repo →

Scraper

Discord bot that exports full channel message history to CSV with metadata filtering and rate-limit handling.

Pythondiscord.py

View repo →

Swishet

Waybar status bar module displaying live NBA scores pulled from the ESPN API.

Bashcurljq

View repo →