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Mary Krylenko

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Flag of Ukraine Donetsk, Ukraine
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Member since November, 2007

I have over 10 years experience in the field of Software Development as Sr. Developer. My expertise is in full Software Development Life Cycle (SDLC) including: - Software Architecture - Object Oriented Programming - Distributed Objects - Designing - and Prototyping. These are my specialties: - Application development and support using ---- Java ---- JSP ---- JDBC ---- RMI. - Development of Distributed Components Architecture - J2EE architecture like: ---- JMS ---- XML ---- MVC ---- Web Methods ---- SOAP ---- REST. - Java frameworks like: ---- Spring ---- Struts ---- Hibernate. - Web/application servers like: ---- Apache (Apache HTTP Server) ---- Tomcat (Apache Tomcat Server). I am also an expert in: - Java 2 - JSP - JSF - MySQL - PostgreSQL - HTML - CSS - JavaScript - Ajax.

4.9 / 5
6.8 / 10

@krylenkom

  • 97%Jobs Completed
  • 100%On Budget
  • 100%On Time
  • 51%Repeat Hire Rate

Recent Exams

  • Freelancer Orientation Top 2%
    85%
  • Java Level 3 Top 21%
    78%
  • UK English 1 Top 26%
    75%
  • US English Level 1 Top 61%
    83%

Top Skills

  • MySQL
  • Java
  • Javascript
  • SQL
  • J2EE
  • Amazon Web Services
  • JSP
  • C# Programming
  • XML
  • Web Scraping
  • Scala
  • AJAX
  • Paypal API
  • Apache
  • J2ME
  • Apache Solr
  • jQuery / Prototype
  • MVC
  • PostgreSQL
  • RESTful
+ show more

Recent Reviews

Experience

Lead Java Developer

Nov 2008 - Sep 2012 (3 years)

Project management system.

Java Developer

Sep 2007

Business Analyst, Java Developer

Feb 2005 - Aug 2007 (2 years)

Projects: 1) A network security scanner application (Nessus client, web application) 2) Forex market trading (web application) 3) Online booking engine Click-to-Sky (web application)

Lead Java Developer

Nov 2003 - Feb 2005 (1 year)

Worked on design, development and support of project. As a member of small team worked on following projects: o Design and development of primary classes for main project using Java. o Design and implementation of "Sign Up", "Sign In", "User Account", "Search" systems using JSP and Struts. o Implementation of adding/edition advertisement using JSP and Struts. o Handling job with images using Java. o Support of site using HTML and CSS.

Software Engineer

Feb 1996 - Oct 2003 (7 years)

Full cycle development program system for collection and analysis economical information, which is written under Win32 and performs following functions: o Receiving specially developed files in text and dBase format, which contain the data from departments. Using FoxPro, Visual Basic. o Check findings and sends protocols by e-mail about errors in data. Using FoxPro, Visual Basic. o Make calculations of different activities: profits, profitability, structure and dynamics etc. Using FoxPro. o Forms differ

Education

Master, Computers

1991 - 1996 (5 years)

Master, Economics

1996 - 1999 (3 years)

Certifications

Algorithms: Design and Analysis, Part 1 (2012)

Algorithms: Design and Analysis, Part 2 (2012)

Publications

No publications

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Badges

  • The Achiever

    Accept 50 projects.
  • The Multi-tasker

    Complete 40 projects.
  • Mover and Shaker

    Create 50 Milestones.
  • The Spartan

    Bid on 300 projects.
  • Simply the Best

    Complete 5 or more projects, with a 95% completion rate.
  • Neighbourhood Watch

    Reporting a user who violates our terms of service
  • Smooth Operator

    Complete 10 projects on time.
  • The Economist

    Complete 10 projects on budget.
  • Frequent Visitor

    Log in in every day for 1 month.
  • Smart Money

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  • Feedback Guru

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  • The Critic

    Post 10 Reviews.
  • UK English Qualified

    Pass the UK English Exam (Level 1)
  • Pro-Profile

    Complete your Profile 100%.
  • The Enforcer

    Reporting a project or contest that violates our terms of service.
  • The Seeker

    Bid on 20 projects.
  • The Regular

    Log in every day for 1 week.
  • US English Qualified

    Pass the US English Exam (Level 1)
  • Nine-to-Fiver

    Win a project and accept the offer.
  • The Perfectionist

    Edited a bid.
  • High Roller

    Complete a project worth over $500USD (or equivalent) on Freelancer.com.
  • All Star

    Receive a 5-star rating for a project.
  • The Adventurer

    Complete your first project.
  • The Biller

    Create an hourly invoice.
  • The Collector

    Reach a balance of 5,000 credits.
  • Mover and Shaker

    Create 50 Milestones.
  • The Collector

    Reach a balance of 5,000 credits.
  • The Achiever

    Accept 50 projects.
  • The Multi-tasker

    Complete 40 projects.
  • The Spartan

    Bid on 300 projects.
  • Simply the Best

    Complete 5 or more projects, with a 95% completion rate.
  • Smooth Operator

    Complete 10 projects on time.
  • The Economist

    Complete 10 projects on budget.
  • Frequent Visitor

    Log in in every day for 1 month.
  • Smart Money

    Create 10 Milestones.
  • High Roller

    Complete a project worth over $500USD (or equivalent) on Freelancer.com.
  • All Star

    Receive a 5-star rating for a project.
  • Neighbourhood Watch

    Reporting a user who violates our terms of service
  • Feedback Guru

    Receive 10 reviews
  • The Critic

    Post 10 Reviews.
  • UK English Qualified

    Pass the UK English Exam (Level 1)
  • Pro-Profile

    Complete your Profile 100%.
  • The Enforcer

    Reporting a project or contest that violates our terms of service.
  • The Seeker

    Bid on 20 projects.
  • The Regular

    Log in every day for 1 week.
  • US English Qualified

    Pass the US English Exam (Level 1)
  • Nine-to-Fiver

    Win a project and accept the offer.
  • The Perfectionist

    Edited a bid.
  • The Adventurer

    Complete your first project.
  • The Biller

    Create an hourly invoice.