I will develop robust java backend microservices and rest apis

K
koleslena
K
koleslena
Elena K
develop robust java backend microservices and rest apis
Full Screen
develop robust java backend microservices and rest apis
Full Screen
develop robust java backend microservices and rest apisdevelop robust java backend microservices and rest apis

About this gig

Looking for a clean, secure, and production-ready Java backend or microservice?

I am an experienced Software Engineer with a mathematical background, specializing in high-performance Java backend development. Whether you need a small REST API, a Spring Boot microservice, or a complex enterprise system, I deliver robust, scalable, and fully documented code.

️ What I offer:

  • Spring Boot & Microservices: Building scalable architecture, RESTful APIs, and cloud-ready backend services.
  • Database Integration: Secure setup and optimization for PostgreSQL, MySQL, MongoDB, and Redis.
  • Code Refactoring & Optimization: Enhancing performance, fixing deep bugs, and refactoring legacy Java code.
  • DevOps & Cloud Deployment: Containerization with Docker, CI/CD pipeline setup, and Linux system configuration.

Why choose me?

  • 15+ Years of Tech Experience: I write clean, optimized code adhering to SOLID principles and patterns.
  • Turnkey Solutions: You receive fully tested code with comprehensive README/API documentation.

Please message me before placing an order to discuss your system architecture!

  • Expertise

    • Algorithms & Data structures
    • Localization
    • Performance
    • Databases
    • Source control

  • Programming language

    • Java

  • Frontend framework

    • Angular
    • AngularJS
    • Bootstrap
    • jQuery
    • React.js

  • Backend framework

    • Spring

Get to know Elena K

Elena K

Software Engineer NLP Data Scientist

  • FromKazakhstan
  • Member sinceJan 2026
  • Avg. response time1 hour

  • Languages

    Russian, English, French, Sanskrit
Experienced Enterprise Software Engineer & NLP Data Scientist with a degree in Mathematics. What I can do for your business: ✔️ Custom Python text parsers, tokenizers, and advanced scrapers. ✔️ Prepare multi-lingual datasets for LLM training. ✔️ AI Agents, chatbots, and RAG architectures (LangChain/LangGraph). ✔️ Robust backend microservices (Java/Python) and deploy them via Docker. Master of Linguistics with a proven track record of deploying DL models for highly inflected languages. Let's build your next AI solution together! Portfolio & Code: https://github.com/koleslena

My Portfolio

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