Open to opportunities

Oybek
Saydaliyev

Java Backend Developer —

2+ years building secure, high-performance microservice systems. From a multi-tenant LMS to a large-scale tourism platform — I focus on clean architecture and measurable results.

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Who I am

About Me

I'm a Java Backend Developer based in Tashkent, Uzbekistan, specializing in microservice architecture and high-throughput systems. With a strong foundation in Spring ecosystem and distributed systems, I turn complex requirements into reliable, scalable backends.

My engineering philosophy: write code that not only works today but handles tomorrow's load without breaking a sweat. Every optimization I ship has a measurable number behind it.

Whether cutting search latency 3× with reactive programming, powering hotel discovery across 35,000+ listings with Elasticsearch, or securing multi-tenant isolation with zero data leaks — I focus on impact.

⚡
3×
Search speed via WebFlux
🏨
35K+
Hotel listings on Elasticsearch
🔒
Zero
Cross-tenant data leaks
📬
100%
Notification delivery rate

Career

Work Experience

Core Team

Java Backend Developer

Travel & Tourism Platform · Microservices

Dec 2025 – Present
  • Integrated 3+ major tourism providers (Tourvisor, Asialuxe, Kompas) into a unified, extensible architecture.
  • Built Elasticsearch-powered hotel search across 35,000+ listings with full-text and filtered discovery.
  • Migrated search flow to reactive programming with WebFlux — 3× improvement in perceived performance.
  • Reduced backend load 2× through Redis caching under peak traffic.
  • Engineered notification pipeline (cron jobs + priority queues) with zero critical delivery failures.
  • Secured all APIs with strict access control across a fully distributed microservice system.

SDG Group

Java Backend Developer

Multi-tenant LMS · Educational Centers

Jan 2025 – Sep 2025
  • Architected full backend of a multi-tenant LMS from scratch, supporting multiple independent learning centers.
  • Enforced tenant-level data isolation using OAuth2 + Spring Security — zero cross-tenant data leaks.
  • Built RESTful APIs for course management, learner progress tracking, and user administration.
  • Maintained reliability under concurrent multi-tenant load through robust design patterns.

Toolkit

Technical Skills

Languages

JavaPythonSQL

Frameworks

Spring BootSpring MVC Spring CloudSpring Security Spring DataHibernate JPAWebFlux

Search & Messaging

ElasticsearchApache KafkaRabbitMQ

Databases

PostgreSQLRedis

APIs & Protocols

RESTWebSocketOAuth2Reactive

Infrastructure & Tools

DockerDocker Compose NginxTemporalClaude Code

Say Hello

Get In Touch

Open to backend engineering roles, interesting projects, and collaborations. My inbox is always open.

saydaliyev0710@gmail.com
LinkedIn GitHub +998 99 401 76 42