Imej profil Shchipunov
@Shchipunov
Ahli semenjak 29 Mac 2015
1 Cadangan

Shchipunov

Dalam Talian Luar Talian
Over ten years of experience in IT industry, architecture, design, development and testing of multi-tier distributed enterprise applications and services of e-commerce / banking by using Java technologies, various methodologies (Agile / Scrum, TDD, Domain-driven design / Event Storming) 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/hr
21 ulasan
4.3
  • 100%Kerja Diselesai
  • 100%Mengikut Bajet
  • 100%Tepat Pada Masa
  • 14%Kadar Ulang Upah

Portfolio

Ulasan Terkini

Pengalaman

Expert Java developer

Jan 2015

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 2012 - Jan 2015 (3 years)

Developed services to stream audio / video in a high load environment. There were found efficient ways to encode, store, stream audio / video and implemented next services: - Java wrapper around FFmpeg to encode audio / video to required formats. - Service to upload audio / video (Amazon S3 and local storage implementations). - Service to stream audio / video with its implementation of HTTP headers such as "Range", "If None Match", "If Modified Since" (client-side caching). - Presentation layer.

Java developer

Jan 2010 - Jan 2012 (2 years)

Played a key role in full life-cycle development (requirements, design, implementation, verification, maintenance) of server-side code for POS-terminals: - Domain modeling based on Domain-driven design / Event Storming principles (entities and their relationships / events). - Authentication / authorization modules. - Integration of external API for interbank communications (adapters / facades). - Service to validate and handle requests / transactions. - Logging system to store request details.

Network & database administrator

Jan 2004 - Jan 2010 (6 years)

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

Pendidikan

Bachelor of science

2004 - 2008 (4 years)

Kelayakkan

Cisco Certified Network Associate (2014)

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