Top Upwork Freelancers

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  1. Edgaras Zulonas

    Edgaras Zulonas

    System analyst

    Lithuania - Last active: 1 month ago - Tests: 4

    *nix: Debian, Slackware, openSUSE, CentOS, OS X, NetBSD, OpenBSD, QNX Neutrino RTOS 6.2.1, OpenWRT, dd-wrt; Windows: all; *nix Software: Linux Networking Tools, VPN, VNC, Apache, Samba, Squid, Snort IDS/IPS; M$ Software: IIS, LDAP, AD, RDP, TeamViewer; VM: Oracle VM Virtualbox, qemu, Hyper-V; DB: Mysql; CMS: Drupal; Spoken Languages: Lithuanian, Russian, English.

    $50.00 /hr
    0 hours
    0.00
  2. Ivan N.

    Ivan N.

    SAP-ABAP, C#, SQL Developer

    Moldova - Last active: 1 day ago - Tests: 3

    My core competency and objective is to get one of the following C/C++, C#, SQL or SAP-ABAP jobs: The responsibilities would be: 1) Maintenance of existing software: * design and develop new features; * find, analyze and fix all bugs; * technical documentation. 2) Software development: * participate as a team member in work; * analyze and define requirements; * design, code and test entire software; * design, code and test modules assigned to me; * technical documentation. Over the last 5 years I have developed a lot of ABAP applications for start up companies and for the big ones. My competency lies in complete software development and its thorough testing. I have developed a lot of applications for insurance companies and retail companies. The main responsibilities during my career were: 1. Creating / modifying reports using simple listing, ALV Grid, ALV Tree 2. Creating / modifying / testing custom applications 3. Creating/modifying Smart Forms, SAP Scripts 4. Extracting programs (creating files and simple listing reports with the data extracted both on local & application server) 5. Defining and maintaining data types, domains, database structures, database tables, maintenance & cluster views 6. Interfaces for major data transfer using Batch Input/Call Transactions, BAPIs 7. Defining and Calling Screens/Selection Screens 8. Creating Search Helps, Search Help Exits 9. Creating / modifying ABAP Queries 10. Working with ABAP objects. Creating/modifying ABAP classes/interfaces 11. Creating/Modifying Function Modules, RFC functions, Update Functions 12. Creating/Implementing/Modifying User Exits, BADIs 13. Creating/Calling Web Services. Use SAP Web Application Server as a provider and as a consumer 14. XML->SAP & SAP->XML transformations I also have experience in SQL, C#, C++, software design and testing.

    $17.78 /hr
    9 hours
    0.00
  3. Andrey Markin

    Andrey Markin

    Developer

    Russia - Last active: 28 days ago - Tests: 3

    I'm a Java developer moved from financial markets modeling and algorithmic trading to software development and integration architecture. My experience varies from data analysis to python, java and javascript web frameworks to java backend development and server configurations. Long term relationships with clients are number one priority, but this doesn't mean I'm not interested in just-do-it monthly projects. As a selfish egoist I'm primarily looking for interesting ones.))) I'm flexible with my working hours and am able to work closely with any existing coworkers you work with. Making a contact is a perfect and surprisingly the shortest way to start cooperating. Yours Andrey).

    $8.89 /hr
    0 hours
    0.00
  4. Mikhail Chugunov

    Mikhail Chugunov

    Java Developer

    Russia - Last active: 1 month ago - Tests: 1

    6 years of web-oriented Java software development. Expert in Spring framework related development. Last 5 years I took part in several enterprise-quality projects in various fields from property insurance to telcos. My objective is to deliver the highest quality for backend applications. Also I have some experience in front-end technologies including Javascript as well as with modern languages and frameworks like Play for Scala

    $11.11 /hr
    0 hours
    0.00
  5. Denis C.

    Denis C.

    Expert System Engineer

    Moldova - Last active: 1 month ago - Tests: 9

    PROFILE – A self-motivated and committed system administrator with exposure to a wide range of technical areas, focused on delivering best experience to the end-users – Nine years of experience in administering business–critical application stacks such as banking software, middle-ware, billing systems, Telecom-specific applications; troubleshooting complex issues, managing both production environments and databases of highly respected companies – Performed upgrades planning, software developing and documenting the knowledge – Highly adaptable and quick to learn new skills – Six years of customer service experience MAIN TECHNICAL SKILLS O/S: HP-UX, SunOS, AIX, RedHat, CentOS, Debian – installation/configuration Software: MySql Server – installation/configuration Apache Web Server – installation/configuration Nginx – installation/configuration Apache Tomcat – installation/configuration Redhat JBoss Application Server – maintenance Oracle WebLogic Application Server – maintenance Oracle Tuxedo – maintenance Oracle Database – maintenance CVS – codebase maintenance HP Quality Centre – configuration/maintenance SSH Server – installation/configuration Telecom–specific Billing Applications (Amdocs Ensemble, Oracle BRM) – maintenance Oracle VM VirtualBox – installation/configuration Languages: Python – 1.5 years Perl – 3 years AWK – 4 years Shell Scripting – 5 years SQL (mysql and Oracle) – 4 years Java – 0.5 years PROFESSIONAL EXPERIENCE – Billing System Engineer, Team Lead (3 persons in submission): 2010 - 2013 – Software Developer: 2008 – 2010 – Senior System Engineer: 2003 – 2008

    $16.67 /hr
    0 hours
    0.00
  6. Rahul W.

    Rahul W.

    Consultant

    India - Last active: 11 days ago - Portfolio: 2

    Almost 5 Years of proven working experience of J2EE Related Projects and Currently working on ERP workflow application using JSF, ICE Faces with Hyperion Integration . Web Frameworks, Servers and Tools: - Struts MVC, Spring , Log4J, Axis Web Service, SOLR , Jason Objects Persistence Layer and O/R Mapping Tools : -Hibernate3.0+JPA (Java Persistence API), JDBC Application Presentation Layer: -Struts Tags, JSP, ICE Faces, JSF Ajax Framework:-ZK Framework,ZK MVC,ZK MVVM, DWR frame work. Application Server : - Weblogic 9.2, Jboss, Glassfish, Tomcat 6.0

    $11.11 /hr
    0 hours
    0.00
  7. Steven Bochinski

    Steven Bochinski

    System Engineer

    United States - Last active: 2 months ago - Tests: 15

    Looking for a linux system admin? I am familiar with the usual flavors ubuntu, CentOS, RedHat, debian, apache & databases(Oracle, mysql, postgresql). Love to work on virtualized systems like KVM/Libvirt and Oracle Virtualbox I am a US citizen and native English speaker with over 20 years of systems administration, engineering and architecture experience on Unix and Linux systems.

    $5.00 /hr
    0 hours
    0.00
  8. Oleg Boytsev

    Oleg Boytsev

    Information Security Engineer/Malware Analyst/Reverse Engineer

    Belarus - Last active: 15 days ago - Tests: 1 - Portfolio: 1

    5 years of experience in IT Security field. Highly motivated to solve interesting tasks. Core Qualifications and abilities: High skills in *nix systems administration and information security; Computer network attack/defense; Deep experience in web application security testing (according to OWASP guideline); Strong background in malware analysis and reverse engineering; Responsive, organization skills and the ability to work with minimal supervision; Ability to learn and apply new technologies effectively. Technical skills: Standards/Practices: OWASP standards, ISO 17799 Operating Systems: Windows, Linux, FreeBSD; Networking: TCP/IP, LANs, VPNs, Firewalls; Software: Ollydbg, IDA Pro, GDB, Nmap, Metasploit framework, Burp Suite, Sqlmap, Wireshark, Tcpdump. Programming languages: x86 Assembly, Python Network & System Security: implementing different kinds of tools for network (ModSecurity) and system security Vulnerability Assessments: have a strong background in web application security testing, buffer overflows, format string vulnerabilities Malware Analysis: familiar with tools and techniques that allow to analyse and describe an evil sample according to the best practices. Unpacking, disassembling, binary Debugging/patching, dynamic (behavior) analysis. Reverse Engineering: familiar with Ollydbg, IDA Pro and GDB. System administration: LAMP, DNS, iptables, etc.., know how to solve a vast majority of issues.

    $35.00 /hr
    0 hours
    0.00
  9. Igor Drankin

    Igor Drankin

    Web developer

    Russia - Last active: 1 month ago - Tests: 4

    I have solid 2+ yrs of web development experience using Ruby on Rails. I have worked hundreds of hours out side odesk on multiple domains. I can do anything related to rails. I am working in rails from 2012 and worked on high traffic websites and variety of domains like finance, banking and gas... I have necessary experience in web programming. Like Ruby on Rails, HAML, AJAX, JavaScript, etc.

    $40.00 /hr
    0 hours
    0.00
  10. Yogesh Sharma

    Yogesh Sharma

    Active Directory and Exchange consultant

    India - Last active: 25 days ago - Tests: 3 - Portfolio: 1

    A Highly motivated and result-oriented individual with over 8 years of experience in a professional environment having a great work culture and meticulous attention to detail with emphasis to customer satisfaction. Ability to achieve set targets and goals in a timely manner. Microsoft Certified System Engineer in Windows Server 2003 with Exchange and Technology Specialist in Windows Server 2008. Extensive hands-on experience in configuring, monitoring, upgrading, migrating and maintaining systems running Microsoft Exchange Server suite (2003 to 2013). Extensive hands-on experience in configuring, monitoring, upgrading, migrating and maintaining systems running Microsoft Active Directory Services(2003, 2008). Extensive hands-on experience in configuring, monitoring, and maintaining systems running Microsoft Cluster Services. Extensive hands-on experience in configuring, monitoring, upgrading, migrating and maintaining systems running Microsoft SharePoint Services(MOSS 2007). Troubleshooting Windows Server related issues(AD, DFS, IIS, DHCP, DNS, and WSUS) Projects, Installations, Configurations and Migrations etc. Configuring and troubleshooting on Mailbox, CAS, and Hub and Edge server roles installations. Configuring High availability solutions like Local Continuous Replication/Cluster Continuous Replication/Standby Continuous Replication technologies. Troubleshooting on Mailbox Migration, Public Folder replication, Database Inconsistency, Exchange services, Offline Address Book, Recovery Storage Groups. Implementing Disaster Recovery in exchange servers for recovering exchange information. Configuration and Troubleshooting External Mail flow (Inbound/Outbound), Mail flow between servers, Spam issues, Edge Synchronization. Configuring Anti spam/Transport agents, Application Relay, SMTP/Transport service problems. Analyzing and evaluating issues using various tools and utilities like EXBPA, EXTRA, ExMon, PFDAVAdmin, Exmerge, DCDIAG, NetDiag, NLtest, telnet, Replmon, AD modify, ADMT, MFCMAPI, etc. Installation, Configuration & Monitoring of Trend Micro Internet Messaging Security Suits & Symantec Endpoint Security. Basic Hygiene & Server hardening of all Windows OS, Linux OS & Subsystems likes IIS, ADS, and SQL Server etc. Security Health Check of all Windows & Linux OS. Ensure documentation of all activities & procedures adhering to organization standards

    $12.00 /hr
    2 hours
    0.00