Profilbild von Shchipunov
@Shchipunov
Mitglied seit March, 2015
1 Empfehlungen

Shchipunov

online offline
Over ten years of experience in IT industry, architecture, design, development and testing of multi-tier enterprise applications and services of e-commerce by using Java technologies and various methodologies (waterfall model, iterative model, Agile, TDD) and frameworks. Strong knowledge and experience in: core Java, full stack of Java EE technologies, multi-threading, design patterns, object-oriented analysis and design, aspect-oriented programming. Excellent interpersonal and communication skills. Self-motivated, the ability to quickly learn new technologies.
$25 USD/Std
21 Bewertungen
4.3
  • 100%Aufträge abgeschlossen
  • 100%Budgetgerecht
  • 100%Termingemäß
  • 14%Wiedereinstellungsrate

Portfolio

Neueste Bewertungen

Erfahrung

Expert Java developer

Jan 2014

Participated in development of web-applications for various projects (e-commerce, education, entertainments) where were implemented various tasks: - Microservice architecture (based on Spring Cloud and Netflix services: Zuul, Eureka, Ribbon, Hystrix, Feign). - Designing RESTful API. - Developing applications with Real-Time Communications (RTC) capabilities (based on WebRTC project). - Security (authentication / authorization, session fixation protection, XSS / CSRF attacks protection).

Sr. Java developer

Jan 2010 - Jan 2014 (4 years)

Developed a server-side part of code for a highly loaded audio / video / image server: - Resource handler that allowed to stream audio / video content. It handled "Range" requests and other HTTP headers as "If None Match", "If Modified Since" (caching on client-side). - Messaging system based on WebSocket. - Deploying Docker containers onto ECS and ECR using CodePipeline to build a fully automated continuous deployment pipeline on top of AWS.

Java developer

Jan 2007 - Jan 2010 (3 years)

Played a key role in full life-cycle development of multi-purpose applications: - Optimization of data access layers (distributed transactions, batch operations, eager / lazy fetching, caching). - Performance, threading (concurrency) and memory issues. - Remote services (RMI, SOAP-based and REST-based web services). - Unit and integration tests. Performed various tasks such as refactoring of legacy code, development of new functional features, debugging and documentation.

Network & database administrator

Jan 2001 - Jan 2007 (6 years)

Completely documented the network infrastructure, including physical and logical topology, IP addressing scheme, scheme of routing, and the access policy. - Installed and configured Cisco routers and switches. - Managed over 100 nodes LAN. - Provided primary administrative support for databases in NT environments. - Generated reports from the database using SQL.

Ausbildung

Bachelor of science

2007 - 2012 (5 years)

Zertifikate

Cisco Certified Network Associate (2014)

Verifizierungen

  • Facebook-Verbindung
  • Präferenz-Freelancer
  • Zahlung verifiziert
  • Telefon verifiziert
  • Identitätsüberprüfung
  • E-Mail bestätigt

Meine Top Fähigkeiten

Ähnliche Freelancer durchsuchen