Top Upwork Freelancers

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  1. Puneet Sharma

    Puneet Sharma

    ORACLE Database Administrator

    India - Last active: 16 days ago - Tests: 1

    I am working as a Oracle database administrator. Experience : More than 2 years. Education Qualification : B.Tech. (Computer Science) Oracle administration covers Installation, configuration, of databases,on *nix and Windows OS in stand-alone,ASM and RAC. I can provide service for your existing Oracle DB as also install and configure your future Oracle databases From 10.2* to 11.2* version on Linux, Windows, Solaris, HP-UX. - File system, raw devices, ASM. Oracle Backup and recovery for Oracle DB - Dataguard solutions - High availability solutions - Security/Database Hardening. Hands on : Database Up-gradation,Migration/Cross platform Migration,convert Database from Non ASM to ASM and Stand alone to RAC, Installation of Stand-alone Database and ASM and 2-node RAC,RAC Plus Dataguard.Deploying automated monitoring and backups for Database Сertifications: - OCA 10g - SQL Certified,Administration 1

    $8.00 /hr
    12 hours
    5.00
  2. Valentyn Kalyn

    Valentyn Kalyn

    Senior Ruby Developer

    Ukraine - Last active: 2 days ago - Tests: 2 - Portfolio: 2

    • 5+ years of professional expertise in the Information Technologies (IT) industry • Experience in Ruby on Rails technology • Experience in Ruby and PHP scripting languages • Solid experience in JavaScript language, knowledge of AngularJS • Rich expertise in Web development (Ruby/PHP/JavaScript + MySQL/SQLite/PostgreSQL/MongoDB) • Development & expertise highlights: - Web 2.0 applications development - Client-server application development.

    $27.00 /hr
    329 hours
    5.00
  3. Bigyan Shrestha

    Bigyan Shrestha

    Software Engineer

    Nepal - Last active: 1 month ago - Tests: 4 - Portfolio: 2

    I have 2+ years experience in software development as a Software Engineer. * Languages: Java, PHP, Common LISP, C/C++, python * OS: Linux (Redhat, Debian), Windows * Databases: MySQL,Oracle, MsSQL, SQLite, Berkeley DB * Miscellaneous: # HTTP, SOAP, Web services # JBoss, Apache Tomcat, Slide (WebDAV) # Ant, Maven, Bamboo, SVN, CVS, GIT ** Specialties: Research, design, development, and testing of enterprise and desktop applications. Release engineering and tools development more info: http://np.linkedin.com/in/bigee

    $44.44 /hr
    13 hours
    4.94
  4. Johann Tagle

    Johann Tagle

    Database Specialist (Design, Tuning and Development)

    Philippines - Last active: 3 days ago - Tests: 3 - Portfolio: 4

    More than 15 years experience in database architecture, development, optimization and administration as well as business intelligence, using Oracle, MySQL and PostgreSQL and MongoDB databases. Particularly interested in architecture, development and tuning to support high performance applications and back-end business intelligence and reporting. Explores and uses databases features available such as stored programs, triggers, special table types and functions to develop best-fit solutions. Also uses tools to determine Knowledgeable in data warehousing techniques and use of tools such as Pentaho Business Intelligence platform. and developing ad-hoc scripts for reporting and ETL. I was also 2012's top expert for MySQL Server in Experts-Exchange.com (http://www.experts-exchange.com/expertAwards/annual.jsp?year=2012). I have also developed some tools to help me manage MySQL (https://github.com/johanntagle/modified_query_profiler and https://github.com/johanntagle/mysql_online_alter_table), though I have since used more sophisticated tools from companies such as Percona.

    $25.00 /hr
    374 hours
    4.98
  5. Alex Denisenko

    Alex Denisenko

    Android developer

    Ukraine - Last active: 4 days ago - Tests: 5 - Portfolio: 2

    Hello, My name is Alex Denisenko. In my portfolio you can see there are few programs that I’ve developed. If you’re interested in quick creation, trouble-free performance and extensible of your applications, I will be the best choice for you. I already created apps for Android, and all of my clients was been extremely satisfied, verify this you can if you will see my jobs history. Also I have strong skills in constructions of algorithms( won in regional ACM ICPC programming contest), object-oriented programming and working with third-part libraries( I was work with Facebook API, Flickr API, Instagram API, also used libraries for work with PDF files). I will ensure that I will do your job in deadline. I think that my main advantage is ability to learn quickly. I guarantee that your applications will work in all used versions of Android(sure, if you need that). Apart from my knowing Android, I can programming with C++(with QT if needed), have skills of game and computer graphics programming. Hire me today - you will not regret.

    $20.00 /hr
    177 hours
    5.00
  6. Mikayel S.

    Mikayel S.

    Senior C++/STL Developer

    Armenia - Last active: 1 month ago - Tests: 2 - Portfolio: 1

    Programming Languages - C/C++ (STL), C# .NET, Python, SQL, Assembly Language of Intel x86, Lisp, Smalltalk, Bash Script, HTML, CSS. Environments - Linux , Vim, Microsoft Visual Studio Excellent knowledge of Object Oriented Programming, Generic Programming, Data Structures, Operating Systems, Parallel Programming, Embedded Programming, Functional Programming, Compilers, Robotics, Computer Networking.

    $20.00 /hr
    68 hours
    5.00
  7. Jesus Enrique Gutierrez Cortazar

    Jesus Enrique Gutierrez Cortazar

    Senior Software Developer

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

    I'm a full-stacl software developer. I use to follow and implement code standards and also to audit and modify code for a better performance, knowledge and understanding. The best part is that i love what i do as i live for it. It's like i'm beeing payed for having lots of fun. Wait, that's true in fact!!! I love technology and development innovation and i when i'm sleeping i dream about code, implementations and deployments. I have experience developing professional enterprise software solutions under many technologies, mainly with Java and Ruby On Rails. I have good written and verbal english communication skills. I consider myself as proactive, responsible and can be part of any team work. It doesn't matter what's the problem to solve or what's the programming language to solve it, i can learn it and will solve it in the best possible way.

    $22.22 /hr
    1,413 hours
    5.00
  8. Molto F.

    Molto F.

    Android / Unity / OpenGL ES / Video Game developer - Project Manager

    France - Last active: 4 days ago - Portfolio: 10

    I have 8 years of experience in Computer science and Project Management, and I worked remotely for a lot of start-ups. I coded and managed a lot of successful mobile games (Bubble Blast Adventures, Retro Future Racing, Bubble Blast FallDown, Bubble Shoot...), mostly done when working at MagmaMobile (France). Passionate about mobiles, Video Games and 3D engines, open to every opportunity. My core competencies are: Unity3D ( 3 years of experience) and Android (4 years of experience). I have special competencies like Physics (2D and 3D) and Rendering (OpenGL ES, OpenGL, shaders), with a specialization in car games: I worked on Retro Future Racing and COPS, both made with Unity3D.

    $35.00 /hr
    108 hours
    5.00
  9. David Kiss

    David Kiss

    Expert Software Developer - Java / Spring

    Canada - Last active: 1 month ago - Tests: 3 - Portfolio: 7

    As an Independent Java Consultant, I build enterprise-grade web applications to small businesses. My passion is engineering scalable, robust and future-proof web applications using open-source technologies. I'm a generalist who gets up to speed in a short period of time and delivers results consistently. With 10+ years in the software industry and delivering a dozen different projects I understand how to maximize ROI on Java-based web applications. SPECIALITIES - Taking business ideas off napkins and into reality - designing and building high performing web applications (Spring Boot, REST, AngularJS, Twitter Boostrap, Cloud, AWS) - Identifying and resolving critical customer-facing issues with short turn-around time - Integrating applications with 3rd-party services (JMS, SQL, NoSQL, Cassandra, Kafka, Neo4j, RESTful web services, LDAP, OAuth, Camel) - Scaling applications and resolving performance bottlenecks (Java, Hibernate, SQL) to keep maintenance costs down - Helping developer teams deliver high-quality code consistently (Agile, Scrum, Lean, Continuous Integration, Jenkins, automated deployment, Fabric, automated tests, JUnit, Mockito, JMeter) - Focusing on big wins and minimizing risks I’m located in Toronto, Canada and able to begin working on your job right away. Please feel free to contact me to discuss your project.

    $70.00 /hr
    58 hours
    4.95
  10. Ivan R.

    Ivan R.

    Front-end engineer

    United States - Last active: 10 days ago - Tests: 2

    Some of the technologies I enjoy using are Node.js, MySQL, MongoDB, Angular, Backbone, D3.js, Canvas, CSS3, Jenkins and Git. Always open to try new languages, frameworks and methodologies. I've developed several web apps and admin systems for restaurants, medical systems, construction companies and Sales companies. In the past I've also worked as an Automation Engineer for more than 2 years, developing testing frameworks and distributed testing engines, all in Java, for a Geo-Stationary Satellite controlling software.

    $36.67 /hr
    58 hours
    4.98