Top Upwork Freelancers

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  1. Brad R.

    Brad R.

    MCITP, MCSE, Virtualization, Network Engineer/Mangr, Writer

    United States - Last active: 5 days ago - Tests: 3 - Portfolio: 1

    Experienced Technology Leader, Implementation Manager, Change Agent and MCSE/MCITP. In-depth knowledge of IT systems and operations, project management, large-scale system implementations and information security with over twelve years with hands on experience as an Enterprise Administrator and Network Manager in NT, 2000, 2003 and 2008 environments. Extensive experience in Server Virtualization including VMware and Hyper-V integrated with HP and EMC SANs. Practiced understanding of Exchange, Lync Server 2010, Fortigate UTM devices, Active Directory, PKI and DFS. Five years of experience as a corporate Microsoft/Certification trainer and serving as an MCSE/CCNAinstructor for technical schools, colleges and corporations such as AT&T; and Comcast Cable. I have created course curriculum for two online schools. I am extremely proficient in Server 2012 and 2008, including Server Core edition, Hyper-V, Fortinet, VMware, Procurve, HP and EMC SANs, Active Directory, Exchange, SQL, Procurve switches and many other technologies. I have been highly involved in server virtualization for seven years and am proficient in both VMware and Microsoft Hyper-V. I am also a professional writer and have contributed to several white papers and authored published articles in professional journals. Have also written and reviewed test questions for IT professional certifications. I am looking for other opportunities to supplement my work load. My Microsoft Profile can be accessed by this link: http://www.mcpvirtualbusinesscard.com/VBCServer/brad.rudisail/profile For more information on me go to www.bradinthecloud.com

    Groups: Microsoft Certified Professionals

    $34.94 /hr
    1,818 hours
    4.96
  2. Aaron Summers

    Aaron Summers

    Linux Cloud Engineer / 14 Years Real World Experience

    United States - Last active: 1 day ago - Tests: 7 - Portfolio: 2

    Daily engineering and administration of OpenBSD, FreeBSD, Linux and Windows based operating environments. LAN/WAN: Experience identifying a large number of network and host based security problems. Stabilized the bandwidth billing system for accuracy and provided assistance to the web development team. UNX(tm)/Linux/BSD: Designed and built a custom Enterprises Data Ware House utilizing RedHat Enterprise Linux, IBM Information Server, and the Sun N1 toolkit. Back ported the RedHat clustering tools and GFS modules for RedHat Enterprise Linux 4. Customized the operating environment for running the IBM Information Server 8 family of applications, consisting of IBM DB2 V 9.3, IBM WebSphere 6.0, IBM DataStage and IBM QualityStage. Was the single onsite operations point for the HP-UX, Solaris, FreeBSD, MacOS X, and Linux machines. Wrote custom tools for monitoring and metrics. Fluent in the change management process as it relates to Sarbanes Oxley, internal, and external audits. Extensive documentation of custom applications, primarily our custom data warehouse solution. Designed and implemented the company's external web presence using Solaris 10. Utilized zones, the ZFS file system, and hardware RAID on the T2000 platform. Wrote my own tools in Perl, C, and the Bourne shell. Debugged many complex operational problems. Specialties Started running Linux around 1993, kernel was 0.99 Moved onto SunOS and Open/FreeBSD. Since have worked with HP-UX and SCO extensively. Currently work with RHEL, AMI Linux, CentOS, OpenBSD, EC2, Parallels, and Rackspace.

    $30.00 /hr
    5,604 hours
    4.97
  3. Christine M.

    Christine M.

    Landscape Architect

    United States - Last active: 1 month ago - Tests: 4 - Portfolio: 4

    Ohio Registered Landscape Architect with solid work experience in real estate development, ranging from residential and mixed-use to corporate office and public projects. Use strong organizational skills and attention to detail to guide the process from concept design and entitlements through site coordination and construction administration. Also an American-born, English-speaking writer/proofreader/editor with excellent grammar and verbal skills. Have published several articles on topics including design, sustainability, and real estate and have performed marketing functions including the design of brochures and development of written materials to target and land prospective clients.

    $33.33 /hr
    112 hours
    4.99
  4. Raul F.

    Raul F.

    Full-stack developer and marketplace integration specialist

    Spain - Last active: 4 days ago - Tests: 2 - Portfolio: 8

    Marketplace integration specialist (Ebay/Etsy/Amazon/Shopify/Paypal/Magento). Ebay API, Amazon MWS AWS, Etsy API, Magento,... - Java Programmer Certified - Backend: Java, PHP - Frontend: Bower, Grunt, Angular JS, jQuery, HTML5, SSE. Twitter-Bootstrap. - Technologies: Spring Framework, Hibernate, MyBatis, Iron.io, memcache, jUnit, Maven, Git, AWS, GAE - Experience in BPM/Cloud services. Cordys Fundamentas and Cordys BPMS certified. - Experience in agile methodologies (SCRUM). Degree in Computer Sciences. Visit my portfolio: http://rfvallina.com

    Groups: Application Developers Alliance, ebay

    $55.56 /hr
    1,827 hours
    4.90
  5. Oscar Diaz

    Oscar Diaz

    CakePHP Developer

    Colombia - Last active: 10 hours ago - Tests: 4

    Within my professional career, the last 4 years have been dedicated specifically to focusing and improving my skills on building reusable, efficient, and attractive tools in CakePHP. Through this process, I have attained knowledge vital to understanding CakePHP's most essential functionalities. This knowledge has allowed me to become well versed in the dialogue between JQuery and CakePHP. This, then, has given me the skills to build helpers and components that when applied to your needs, can become the voice that takes form as your ideal problem solver Why? Because I will listen to you. I will ask questions. I will understand what you need and I will provide you with a clean and efficient code.

    $44.44 /hr
    3,380 hours
    5.00
  6. Dorin Duminica

    Dorin Duminica

    Software Developer

    Romania - Last active: 2 days ago - Tests: 12 - Portfolio: 1

    Over the past 6+ years as a Delphi developer I have worked on database, desktop and web applications. I'm proficient in Delphi(version. 7 to 2010) and PostgreSQL. I have a very good analytical thinking and elegant taste for user interface. I also have experience with RTL, VCL(shipped, DevExpress, TMS), OOP, SQL. I'm constantly doing my best to improve my skills and learn new technologies.

    $38.89 /hr
    8,643 hours
    4.90
  7. Sergii Lysiuk

    Sergii Lysiuk

    Network Security VoIP Specialist - Cisco, Juniper, Linux, Asterisk

    Ukraine - Last active: 15 days ago - Tests: 17

    I am looking for projects that I can complete on a part-time basis. They can be either short term projects or long term projects. I can also provide ongoing consulting and administration if needed. I am experienced in Cisco Routing & Switching, MPLS, Security, Network infrastructure applications ( SNMP, Radius, DNS, DHCP , etc) Voip - including Asterisk, Call-Manager , Unity, FreePBX, Elastix. Server administration experience ( Linux, FreeBSD)

    $38.89 /hr
    381 hours
    5.00
  8. Humayun H.

    Humayun H.

    Expert iOS Dev

    Pakistan - Last active: 8 days ago - Tests: 3 - Portfolio: 6

    I'm an iOS developer skilled with all the tools required for the art of creating marvelous Apps. I have a passion to create wonderful and eye-catching Apps that appeal to both the users needs and senses. Having a Computer Science background, the basic blocks of designing and development come as second nature to me and that combined with my avid interest in exploring new techniques and technologies makes me someone you can count on to deliver quality products.

    $60.00 /hr
    1,458 hours
    5.00
  9. Kelly D.

    Kelly D.

    IT Professional with 20+ years of experience

    United States - Last active: 22 days ago - Tests: 5

    My goal is to leverage my 20+ years of IT experience to aid you in solving your business problems. I'm reliable, honest & hardworking. I believe in providing you the very BEST service and the difference does lies in the extra effort. I will personally guarantee you will be satisfied with my results. Contacting me and discussing your needs is absolutely free and so is my advice. I hope to hear from you!

    $35.00 /hr
    340 hours
    4.99
  10. K thomas L.

    K thomas L.

    Analog and Digital Designer - Over 20 yrs. Exp.

    United States - Last active: 1 day ago - Tests: 2 - Portfolio: 2

    Experience in small signal analog design, sensor interfacing, signal conditioning, sensor applications, data capture and analysis, digital design, microprocessors and small FPGA based systems. I have over 20 years experience developing ideas and bringing them through the design process to a finished product. I develop entire systems, including power, mechanical, optical, and software aspects. I excel in small, innovative designs using new technology. I design for durability and dependability coming from a background of experience in designing for harsh environments, high volume production lines, medical, and space applications. I have design experience in serial communications, optical systems, rf communications, programming, DSP hardware and software design, PC board design and technical writing. I offer my services to take your idea and bring it all the way to production, or to fill any need in the process. I am also available for consulting, helping you to refine your ideas into something that is both manufacturable and functional.

    $70.00 /hr
    2,540 hours
    5.00