numonjonov.com Tashkent — UTC+5

Pahlavon Numonjonov

Backend Engineer — Java, Spring Boot, Oracle Scroll ↓
01 — AboutSince 2026

Most of it talks to something older than itself.

I'm a backend engineer at SQB in Tashkent, working the layer between a core banking system on Oracle and everything that needs to reach it: REST services behind JWT, a wrapper around the state biometric identification provider, and digital-signature support inside a legacy JavaEE application.

The interesting problems are rarely the framework ones. They are the Oracle driver that breaks Cyrillic without the right encoding library, the vendor daemon whose annotations stopped matching its own API, the job queue that has to stay responsive on 256 MB of heap.

Outside work I ship small things end to end — a public uptime monitor, a few Telegram bots, a currency tracker with deliberately zero dependencies. Shipping alone teaches the parts a big codebase hides: deployment, retention, what happens at 3 a.m.

02
Years writing backend
06
Projects shipped solo
03
Bank integrations
21
Java version in prod
02 — Selected index08 entries · 2026
Trace penUZ-STATUS

Hold and move to pull the name together
Release — it scatters back

03 — StackSpecification

What I actually use

No progress bars — a percentage next to a language name means nothing. This is the list of things that appear in my repositories and in code I have shipped to production.

Languages

  • Java 21 / 17
  • Python 3.11+
  • SQL Oracle / Postgres
  • PL/SQL packages
  • JavaScript vanilla
  • Bash deploy scripts

Backend

  • Spring Boot 3.x / 4.x
  • Spring Security JWT
  • REST API design feature packages
  • JavaEE / JSP legacy
  • Maven shade, failsafe
  • JUnit, Testcontainers integration

Data

  • Oracle Database ojdbc, orai18n
  • PostgreSQL production
  • SQLite embedded
  • Flyway migrations
  • HikariCP pooling
  • Thymeleaf server rendered

Ops

  • Docker, Compose dev + prod
  • Linux systemd, deploy
  • Caddy, Nginx TLS
  • Prometheus Micrometer
  • Git, GitHub Actions CI
  • WebLogic legacy
04 — ExperienceBanking
  1. 2025 —
    present

    Backend Engineer

    SQB · Tashkent, Uzbekistan

    Services around iABS, the core banking system on Oracle: REST endpoints for currency rates and reference data secured with JWT. A service wrapping MyID, the state biometric identification provider — authentication, profile and document export. Digital-signature support (e-key, DVS over Styx) inside a legacy JavaEE application on WebLogic. Plus PL/SQL packages where the logic belongs in the database.

    • Java 17 / 21
    • Spring Boot
    • Oracle
    • PL/SQL
    • iABS
    • MyID
    • e-key / DVS
    • JWT
    • WebLogic
    • HikariCP
05 — ContactOpen to work

Interested in working together?

The fastest way to reach me is Telegram — I read everything and answer real messages. Tell me what you are building and what is currently in the way. Usually replies within 24 hours.

t.me/CustomAnnotation

Or email — pahlavon@numonjonov.com

Full-time

Backend roles in Java or Spring Boot, remote or in Tashkent. Banking and integration work especially.

Freelance

Telegram bots, small services, monitoring and automation. Built to run unattended.