Top Upwork Freelancers

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  1. 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
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  2. András Iványi

    András Iványi

    Application developer

    Hungary - Last active: 1 month ago - Tests: 5

    I am a Hungarian computer engineer guy, who is programming applications since the 5th class of the primary school, so I have now more, than 10 years of computer experience - more than 5 years professional computer experience. I started using computers in Kindergarten - I was able to create directories with Norton Commander, even before I was able to write with my own hands. Personally I am a very open-minded guy, who focused his life so far learning as much as possible on every field - including soft skills, professional skills, managing ideas, marketing, communicating with people, and a lot of other things. What I can offer to you, is a very good quality of software, well tested and well documented; strong communication skills; some ideas about your project, if you wish. If these things are not important for you - because you can not afford it for example because of short time - then I am afraid, I am not your guy. If I apply for a job, and get it, my very first thing is always to make a product, which is not just acceptable, but perfect for the needs of the client, and perfect for my own requirements too. I am not the cheapest option there, but for this price, you will get a very good quality of code and you will be really satisfied with my work.

    $35.00 /hr
    0 hours
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  3. Stephen S.

    Stephen S.

    Business Analyst and Project Manager

    United States - Last active: 1 month ago - Tests: 2 - Portfolio: 3

    Linked in Profile ssalaka 15+ years of varied industry experience (including extensive consultation work with large cap and fortune 500 organizations) in both software development and systems engineering as well as overall project management and client development/consulting; significant experience with Linux and Windows (mixed) environments and programming experience (including C#, JAVA, C/C++, shell scripting, and SQL), an MBA in Information Technology, and a solid understanding of complete systems lifecycle development/deployment/and support with a solid focus on applying process optimization strategies (Lean, TQM, 6 Sigma, etc...) My overall career path has been extremely varied, covering a wide range of tasks, duties and responsibilities (in an extensive breadth of industries) The main focus has been working in a (C#/JAVA/MSSQL) development;(Windows/Linux) deployment environment, designing and developing application/systems architecture for large scale portal (clustered and virtualized) applications, managing both development and server teams, designing and implementing systems security components, and deploying and managing network/infrastructure resources. Additional responsibilities have included client development/consulting, the integration of developed solutions into client project deployments, offshore team coordination, following development best practices to produce tested, integrated and fully-documented software solutions for Linux and Windows platforms (including Windows Mobile), and large scale systems roll out and deployments using both clustered (both hardware and software based) and virtualized (VMware) technologies. Business Level Japanese, JLPT Level 2 Conversational Spanish/German Specialties: Project Management, Software Development, Software Architecture, Systems Engineering/Architecture, Network Engineering, Programming, Troubleshooting/Maintenance, System Security, Software Architect, JPLT 2kyuu, DBA, MCTS, MCPD, MCSE 2003, SCJD 1.6, Security+, Lean Agent Certification, PMP, Six Sigma Black Belt Process Optimization

    $125.00 /hr
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  4. Oleksii Semilietov

    Oleksii Semilietov

    Software engineer

    Ukraine - Last active: 24 days ago - Tests: 1

    I'm experienced full-stack software engineer / architect with 10+ years experience. Over 7 last years I specialized in the development of automation systems for different business processes, multi-level-marketing billing systems, solutions based on Amazon AWS, gambling engines, integrating different payment systems, etc. Also I have ~3 years experience on position NOC (Network Operational Center) engineer in major ISP (Ukraine). Core stack of languages and technologies that I use most often for the work consists of Erlang, PHP, JavaScript, MySQL, Linux/FreeBSD, Nginx/Apache, *nix shell scripting, etc. Nowadays I'm interested in technologies stack such as: - Erlang; - Clustering, MapReduce and another architectures for distributing heavy tasks; - MQ-brokers (ZeroMQ, RabbitMQ); - Machine learning and data mining; - Realtime algo trading; - Solutions for BigData (e.g. Apache Hadoop; NoSQL solutions such as CouchDB/CouchBase, Riak, Redis, etc); - Embedded projects based on BeagleBone Black, Raspberry Pi, Arduino; - 3D-printing, prototyping, PCB-design. Feel free to contact me if you have interesting project. linkedin profile: https://linkedin.com/in/spylik

    $22.50 /hr
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  5. Pavel S.

    Pavel S.

    Senior PHP/Drupal Developer

    Ukraine - Last active: 1 month ago - Tests: 3 - Portfolio: 1

    Here I'm looking for interesting projects and meetings. My goal - grow professionally and help others. I'd started to work on web-based projects about 7 years ago. I have experience with most of popular CMS and web frameworks, but my current favorite is Drupal. With it, I can build really great and rich web applications. I have over 4 years expierence of Drupal and my experience still growing over time. See my LinkedIn profile for more information: http://ua.linkedin.com/in/pavelsheiman/

    $22.22 /hr
    0 hours
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  6. Dwayne Ewens

    Dwayne Ewens

    Independent Contractor

    United States - Last active: 1 month ago - Tests: 1

    17 years Software Development and QA experience in testing client/server applications, ERP, CRM, and other web-based applications. Experience writing and negotiating requirement contracts for various industries including US Air Force / US Government., aircraft industry, commercial software, oil & gas, and education utilizing the SEI -CMM process for business infrastructure. SUMMARY • Strong application lifecycle management • Developed well interpretation applications for down hole devices and oil & gas surveys • Conducted reviews for testing, debugging and coding software in C++, Visual Basic, Fortran, and Java 7 • Provided analysis for sequencing and plotting oil & gas survey data • Managed and implemented new requirements and developing supporting documentation • Configured and setup project applications for deployment • Served as lead on deploying and configuring PeopleSoft Financial, HCM, CRM • Coded with Ruby on Rails, C++, Java and scripting with JavaScript • Developed software application in C++, C# and Visual Basic in Dev. Studio Desktop 2012

    Groups: LoginRadius

    $33.33 /hr
    0 hours
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  7. Nenad Vico

    Nenad Vico

    Architect

    Serbia - Last active: 17 days ago - Tests: 4 - Portfolio: 1

    Java Architect, Over 10 years of experience using: J2EE, Spring, Hibernate, JPA, Struts, GWT, Smart GWT, WebServices, Applets, Servlets, Swing, Swt, Ant, Maven, Apache libraries, Dods, Axis, JUnit, EasyMock, Dwr, JasperReports, Velocity, FreeMarker, Code generators, Twter4j, REST, POI, Fax4J, CXF, JSF, Spring Boot, Spring Rest, Spring Security, Spring Integration, Spring Batch, Hadoop, Cassandra, Hbase, Hive, Sqoop, Solr, Cammel, Angular, Bootstrap

    $27.78 /hr
    0 hours
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  8. Jawad A.

    Jawad A.

    ROR,PHP/MySql, AJAX Developer

    Pakistan - Last active: 5 days ago - Portfolio: 5

    I'm an experienced and ambitious developer looking for a challenging new role in the IT industry with the opportunity to work with the latest technologies on challenging and diverse projects. Experience in front end development technologies including advanced HTML/XHTML, XML/XSLT, CSS, DHTML, JavaScript (cross-browser and cross-platform compatibility), AJAX , JQuery , PHP , MYSQL , WORDPRESS , CodeIgniter , Yii , Laravel, Ruby on Rails and Different API's) Demonstrated understanding of web usability, web accessibility standards, web 2.0 technologies and design principles.

    $11.11 /hr
    5 hours
    0.00
  9. Oleg Boytsev

    Oleg Boytsev

    Information Security Engineer/Malware Analyst/Reverse Engineer

    Belarus - Last active: 8 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
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  10. Andrey Markin

    Andrey Markin

    Developer

    Russia - Last active: 21 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
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