Services
Priority DM . a day reply
Backend Bug Diagnostic & Error Stack Trace Fix
Root-cause fix & verified code delivered in 24 hours
Priority DM . 2 days reply
PostgreSQL Slow Query & Index Diagnostic Plan
EXPLAIN ANALYZE audit & concurrent index DDL in 48h
Priority DM . 2 days reply
Spring Boot 2 to 3 / Java 21 Migration & Refactor
OpenRewrite AST upgrades, Jakarta fixes, Security 6 DSL
Priority DM . 2 days reply
Custom Real-Time Data & Lead Alert Bot
Async Python scraper daemon with instant Telegram alerts
Priority DM . 2 days reply
API Caching & Rate Limiting Architecture Setup
Caffeine/Redis caching, stampede fixes, Bucket4j rate limits
Priority DM . 2 days reply
Custom Web Data Scraping & Clean Dataset
Clean Excel, CSV & Parquet data delivered in 48h
About me
Backend and data automation developer specializing in enterprise Java (Spring Boot 3.4), relational database performance (PostgreSQL), and resilient web scraping pipelines (Python).
I provide 100% asynchronous, fixed-scope engineering solutions:
Spring Boot Bug Fixes & Stack Traces: Rapid root-cause diagnostics, JPA/Hibernate refactors, and clean PRs.
PostgreSQL Slow Query Audits: EXPLAIN ANALYZE execution plan profiling, composite covering index design, and zero-downtime DDL.
Resilient Web Scraping: Production Python pipelines extracting clean Excel/CSV/Parquet datasets through anti-bot and dynamic JavaScript SPAs.
No live video calls or timezone friction. You send the logs, schema, or target URLs, and you receive verified code, test suites, or structured datasets within 24–48 hours.
- ⚡ PostgreSQL 3,350x Query Speedup Case Studyhttps://gist.github.com/Albidox/51f3a69bc20daf1d73c9b8ef0be97100
- 🛠️ Spring Boot 3 Hibernate N+1 Elimination Case Studyhttps://gist.github.com/Albidox/59349c50666eb99bb96256adaab374e7
- 🕷️ Dynamic Web Scraping: Browser vs HTTP Extraction Benchmarkhttps://gist.github.com/Albidox/829caa565a5404a3e2e2dbde6288cedc
- 📦 25 Production Case Studies & Benchmarkshttps://github.com/Albidox/freelance-portfolio-benchmarks
Frequently asked questions
Do we need to get on a video call?
No. All diagnostics and deliveries are 100% asynchronous. You submit your error logs, schema, or URLs, and you receive an executive written report or code pull request within the agreed SLA. Zero timezone friction.
What files should I provide for a PostgreSQL audit?
Please provide your table DDL schema and the raw output of EXPLAIN (ANALYZE, BUFFERS) for the slow query. No production database access or passwords required.
What do I get in a Bug Diagnostic?
A structured written root-cause breakdown, verified replacement code, and local test steps.