Top Upwork Freelancers

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  1. Nguyen M.

    Nguyen M.

    Salesforce architect, Consultant

    Singapore - Last active: 18 hours ago - Tests: 4 - Portfolio: 5

    With over 7 years as a Senior salesforce developer/architect as well as Salesforce Consultant. I have done 100+ Salesforce Projects across the Global. The ability to understand business requirement and translate to technical design. My salesforce blog: https://manhntbkit.wordpress.com/ Feel free to drop me an email at my google mail: manhnt.bkit@gmail.com

    $55.56 /hr
    58 hours
    5.00
  2. Konstantin K.

    Konstantin K.

    QA Engineer

    Russia - Last active: 18 hours ago - Tests: 3 - Portfolio: 4

    "Think like a bug, act like a bug, and you will find a bug!" I'm experience with emphasis on Quality Assurance(Manual & Automation testing) with Web based, Client/Server and Standalone applications using tools like SOUP UI, Fitnesse and Selenium WebDriver with strong businesses understanding knowledge. Well versed with QA standards and methodologies and hands-on knowledge of all phases of the Software Development Life Cycle (SDLC). I have some facts which end your search and start your smiles,because you found a required specialist.. • Expertise in creating Test Plans, Test Scenarios and Test cases. Analysis of software documentation from business, technical and functional Requirement. • Experience in Functional testing, Integration testing, System testing, Regression testing, User Acceptance, Black box testing, UI testing, browser compatibility testing, Performance testing in different stages of SDLC. • Expert in Automation regression testing using Fitnesse, Selenium WebDriver. Creating, updating and executing the scripts and tracking the defects, Logging the defects and reporting the defect (bug). • Analysis of testing documentation and requirements with specifying comments for correction. • Strong SQL knowledge for test data verification. • Involved in Estimation Management of efforts of the testing process. • A good team player with excellent time management skills having profound insight to determine priorities, schedule work and management of testing team.

    $14.44 /hr
    428 hours
    5.00
  3. Vahram A.

    Vahram A.

    C/C++ Software Engineer, Linux kernel developer

    Armenia - Last active: 2 days ago - Tests: 3

    I'm a senior SW engineer with 7 years of experience in the developing various desktop applications, Linux kernel modules and drivers. I have a PhD in microelectronics and EDA with the thesis related to the USB system design and USB SW stack implementation. My skills and knowledge include embedded systems, firmware, hardware design, OS architecture, various transport protocols(USB, networking, PCI, etc), data structures and algorithms. My main specialization is C/C++, OS kernel modules and desktop applications. My main goal is to provide high-quality products to the client on time.

    $16.67 /hr
    31 hours
    5.00
  4. Pedro Tasies

    Pedro Tasies

    Senior .NET Software Developer

    Costa Rica - Last active: 18 hours ago - Tests: 3 - Portfolio: 5

    Senior .NET Software Developer with over 11 years of experience using Microsoft .NET, C#, Visual Basic .NET, ASP.NET, ASP.NET MVC, SQL Server 2010/2012, Linq, Entity Framework, HTML, Javascript, AngularJS, jQuery, and many other technologies. I'm a results driven person, my English is perfect and I live in Costa Rica, so I share the same time zone with American and Canadian companies.

    $22.22 /hr
    2,494 hours
    5.00
  5. Gary G.

    Gary G.

    Web Development / Java / JSF / PrimeFaces / Lotus XPages Notes Domino

    United States - Last active: 18 hours ago - Tests: 1 - Portfolio: 1

    I have over 15 years of development and implementation experience on projects ranging from small departmental applications through complex enterprise solutions in multi-national corporate environments. My software and application expertise is very diverse and includes Java, Java EE, JSF, JSP/Servlets, and related frameworks and APIs including Spring, Hibernate, EclipseLink, JBoss Seam, RESTful Web Services, PrimeFaces, Lotus Notes & Domino, XPages, Visual Basic, and Crystal Reports. My relational database expertise includes MySQL, Microsoft SQL Server, Oracle, and PostgreSQL. Beyond application development, I am skilled in high-level requirements gathering, risk analysis, technical design analysis, application modeling, implementation planning, and support. Please allow me to provide you with not only expert technical skills but the knowledge and experience I have gained delivering a broad range of business solutions such as CRM, Change & Problem Management, Incident Management, Help Desk, Health Care, Human Resources, as some examples.

    $50.00 /hr
    1,414 hours
    5.00
  6. Dmitry Sytchev

    Dmitry Sytchev

    Asterisk/Freeswitch/Kamalio expert, VoIP engineer, Linux administrator

    Russia - Last active: 1 month ago - Tests: 7 - Portfolio: 1

    I have more than 10 years of experience in installation and support of carrier-grade VoIP services based on Asterisk, OpenSIPS, Kamailio, Freeswitch and proprietary SIP/VoIP software. My professional interests are Callcenters, automated dialer systems and integration of VoIP software with company information flows. You can rely on my strong engineering and programming skills for projects starting from single VoIP server to a complete wholesale/carrier VoIP solutions including billing, call data analysis, security and fraud prevention. I have developed complete SIP solutions for VoIP carriers worldwide: Proxy/Registrars, IVR, prepaid systems, multi-tenant VoIP switches, hardware PSTN gateways (Cisco AS5300/5500, Audiocodes Mediant 2000, Quintum Tenor). I have experience in setup, administration and security of Asterisk, FreePBX, Elastix and FreeSWITCH PBX installations. As a programmer I use PHP, Javascript (both client-side using jQuery and Angular.js and server-side with node.js), Perl (system scripts/applications, Mojolicious webapps). I also have experience in development and administration of MySQL and Microsoft SQL Server databases. I'm experienced network engineer, skilled in routing and switching, general network architecture planning and deployment, network monitoring and security, including HA solutions (heartbeat/pacemaker). I use Zabbix and have some experience with Nagios and other monitoring software. I can also offer you consulting support in VoIP and network technologies.

    $33.33 /hr
    93 hours
    4.96
  7. Justin F.

    Justin F.

    PHP Developer

    Philippines - Last active: 2 days ago - Tests: 1 - Portfolio: 7

    For 3 years, I developed websites using HTML, CSS (Twitter Bootstrap), Javascript (jQuery), PHP (CodeIgniter and Laravel Frameworks) and MySQL. My expertise lies on strong communication skills, great foundation in programming and the ability to manage, adopt and learn fast for benefit of the new website development project. So I'm looking forward for more opportunities to build websites for you or your business. Other skill set are: AJAX, OOP, Api Integration, AngularJs, Wordpress

    $13.33 /hr
    2,810 hours
    5.00
  8. Igor Zekov

    Igor Zekov

    Delphi|C++|Access| Excel|VBA

    Ukraine - Last active: 12 days ago - Tests: 4

    Over the last 8 years, I have developed several desktop applications using Delphi. That was applications for working with databases through ADO mechanisms, working with GSM modem using AT commands, sound proccessing, etc. I am seeking opportunities to build applications for you or your business. Have developed and worked with Access databases with more than 1 million+ records, handled big data arrays in Excel, proccessing it with Excel formulas or VBA, importing/exporting to Access. I also have experience in the following areas: C++, PHP, JavaScript, SQL, Excel VBA, MS Access, Photoshop, 3dsmax, OpenGL.

    $10.00 /hr
    57 hours
    5.00
  9. GM Roland Agreda

    GM Roland Agreda

    Linux System Administrator

    Philippines - Last active: 25 days ago - Tests: 2

    Hello, Equipped with years of experience, dedication, knowledge and expertise, i am confident i can be of great value to your company. I am very good at Wordpress and able to design/build and maintain a website, also do some SEO I have enough work experience with linux server, networking and system security, 8 years of experience with linux servers, i'm expert on push scripts, sandbox to production file push, and data retrieval, my previous job was senior system administrator to a bit-coin mining company. I have many experiences with web-hosting company and launching 3-5 sites daily, i am well experienced in WHM/Cpanel/WHCMS and DNS, i have knowledge with wordpress and drupal, and mail configuration MX settings. I love doing server maintenance, and i am available 24/7, i am used to using a staging system is to have a staging and production site, i am well experience on that method, last time i have program a cron job script to push the dev files to sandbox every 4hrs, the developer working on the dev site and no need to FTP to send to sandbox, i had it automatic push, then when the files is on Sandbox QA check the files before manually push to production server, also "manual push" but server side click only 1-2 sec done... Database and Files....

    $6.67 /hr
    178 hours
    4.98
  10. Terence Taih

    Terence Taih

    Senior Java Developer

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

    I'm a Senior developer with more than 5 experience years on enterprise-grade development. My strongest skill is Java. I have worked with many Java framework from web to database. - Web: Play framework, Tapestry framework, Struts, Spring MVC. - Database: Hibernate (MySQL), Hector (Cassandra), Morphia (Mongo), Redis - Cache: Hazelcast, MemCache. - Search: Elastic search, Apache Lucene - API: Resteasy, Jersey - Beside them, I usually work with: Linux, Jetty, Tomcat, JBoss, Nginx, Amazon EC2, Amazon S3, Amazon CDN, OAuth, Restful API, Web service, Json processing (org.json, jackson) - And have worked with (administration and query ) both database SQL (MSSQL, MySQL, ...) and NoSQL (Cassandra, Mongo, Redis …). About another language, I can code with Nodejs well. I already build project with Nodejs, express and MongoDB. I'm looking for long-time contract, in challenge/interesting project, get exciting experiences to archive my dream: To become an excellent software architect. I will try my best to perform projects, meet all requirements and believe on making customers satisfied.

    $15.00 /hr
    186 hours
    4.69