Software Engineer

Joseph Taddeo

I ship production systems solo — from architecture to deployment to user training.

Sole technical hire at a $2.5M+ luxury e-commerce operation. 75,000+ lines of production code. AI-powered automation. Internal CRM. Proprietary pricing intelligence. Brooklyn, NY.

View Projects See Live Work — luxeswap.com ↗Download Resume

About

Full-stack software engineer who builds and owns production systems end to end.

Sole technical hire at a $2.5M+ luxury e-commerce operation. Designed, built, and deployed a 75,000+ line production platform, AI-powered automation suite, internal CRM with 17 API endpoints, and proprietary pricing intelligence system — all independently. Systems built during tenure contributed to $350K+ year-over-year revenue growth.

Education

University at Albany, State University of New York

Bachelor of Science in Computer Science, Minor in Mathematics

August 2020 – May 2025

Capstone: Career Intelligence Platform (IBM Watson sponsor)

By the Numbers

75K+

Lines of Production Code

26K+

Items Processed Annually

750+

Active Accounts Managed

$350K+

YoY Revenue Growth

Technical Skills

Languages

PythonJavaScriptTypeScriptSQLHTML/CSSJavaC

AI / ML

sentence-transformersOpenAI APILangChainRAGEmbeddingsSemantic Search

Frontend

React 19ViteCSS ModulesScroll-driven Animationsi18nPlotlyMapbox

Backend

Node.jsExpress 5REST APIsJWT Authentication

Data Engineering

ETL PipelinesPandasData NormalizationEntity ResolutionWeb Scraping (Puppeteer/Cheerio)

Databases

Supabase (Postgres)SQLiteMongoDBRedis

Infrastructure

AWS S3VercelRenderDockerGitPyInstallerCron Scheduling

Projects

Production systems built independently — from architecture to deployment. Every project leads with its impact.

Full-stack production platform

LuxeSwap Web Platform

Built the company's entire web platform from zero in 6 weeks. The company had no website before this. Full-stack production system with live inventory integration, B2B lead generation, and 8-language internationalization.

↗ Contributed to $350K+ year-over-year revenue growth

React 19ViteExpress 5Node.jsRedisSupabaseAWS S3

75,000+ lines of production code
19 pages with 8-language i18n (incl. RTL Arabic)
50+ B2B leads generated monthly from zero prior pipeline
Built solo in 6 weeks

View Live →

Internal business platform

Internal CRM & Analytics Dashboard

Built to replace 2,000+ manual spreadsheets. Full internal CRM with JWT-secured API, automated commission calculations, and dual customer segmentation — managing 750+ active consignor accounts.

↗ Replaced 2,000+ manual spreadsheets with unified system

React 19Express 5JWT AuthSupabase/PostgreSQLPython

17 JWT-secured API endpoints
750+ active accounts managed
$8.9M+ revenue and 150K+ items processed
Python ETL: 2,155 XLSX files → 25 canonical categories

Data intelligence platform

Brand Pricing Intelligence System

Proprietary brand pricing index built from historical sales data. Cross-category median ratio computation with fuzzy matching and Levenshtein distance for brand deduplication across 1,021 brands.

↗ Powers real-time pricing decisions across 1,021 brands

Node.jsExpressSupabaseReact

67,000+ sales analyzed
1,021 brands classified into 4 tiers
300+ brand aliases normalized
9 analytics visualizations across 14 canonical categories

AI-powered desktop application

EZ-Lister

AI-powered desktop app that automates eBay listing creation. Deployed as self-updating macOS app — CEO trained and operates independently in daily production use.

↗ Saves ~1.5–2 full-time employees of manual listing work

Pythonsentence-transformersTkinterPyInstaller

26,000+ items processed annually
95% time reduction (10 min → 30 sec per item)
$250K+ annual revenue enabled
~1.5–2 FTE equivalent saved

Financial reconciliation tool

Sales Consolidator

Sales reconciliation pipeline matching eBay transaction reports to internal listing records, automating fee redistribution and consignment payout reporting.

PythonTkinterPandas

Processes 1,000+ transactions per batch
O(n+m) matching algorithm — 60s → <5s execution

University capstone (IBM Watson sponsored)

Career Intelligence Platform

Led cross-functional team sponsored by IBM Watson researcher (Dr. Chidansh Bhatt). RAG-based career matching engine with semantic job-resume matching and geospatial salary visualizations.

PythonLangChainOpenAIMongoDBPlotlyMapbox

RAG-based career matching with OpenAI embeddings
50-state salary choropleth visualizations
CareerOneStop (Dept. of Labor) API integration

Experience

Roles where I've built and shipped production systems independently.

LuxeSwap

Software Engineer

February 2025 – PresentOyster Bay, NY

Luxury menswear consignment house. 25+ years operating. 9-person team. Sole engineer.

Designed, built, and deployed a 75,000+ line production platform — web, CRM, automation suite, and pricing intelligence system — all independently
Built full-stack web platform from zero in 6 weeks, generating 50+ B2B leads monthly from no prior pipeline
Developed internal CRM with 17 JWT-secured API endpoints, replacing 2,000+ manual spreadsheets and managing 750+ consignor accounts
Created proprietary brand pricing index analyzing 67,000+ sales across 1,021 brands for real-time consignment triage
Built AI-powered listing automation processing 26,000+ items annually, reducing listing time by 95% and saving ~1.5–2 FTE
Unified 150K+ records across data sources via Python ETL pipeline normalizing 2,155 XLSX files into 25 canonical categories

FedEx Ground

Package Handler

May 2024 – February 2025Troy, NY

Part-time during final year of CS degree.

Processed 800–1,000+ packages per shift in high-throughput logistics environment
Maintained accuracy and met daily targets under tight operational deadlines

Contact

Interested in working together? Let's talk.

Direct Contact

jjtjoseph1@gmail.com 516-669-9372

Connect

GitHub LinkedIn Live Project