Top Upwork Freelancers

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  1. Anatol Druzhinin

    Anatol Druzhinin

    VBA macro developer

    Russia - Last active: 8 days ago - Tests: 3

    VBA expert at your service! I have 15 years expertise in MS Office apps and VBA-automating and integrating them to build user-friendly applications. I am experienced in: - data analysis and visualisation in Excel, - building databases in Access and Excel, - creating corporate automated templates in Word, - designing clear presentations in PowerPoint, - automaticaly sending emails with data via Outlook from other Office apps. I graduated from the Novosibirsk State University, Mathematics & Mechanics dept and qualified as mathematician and IT-specialist. I am interested in complex and non-typical works.

    $20.00 /hr
    28 hours
    5.00
  2. Evangelos Balanis

    Evangelos Balanis

    Java - C# - Web Developer

    United Kingdom - Last active: 18 days ago - Tests: 2

    I can work on anything that requires HTML, CSS, Javascript, etc about web development, and of course I can create almost any program that requires C# or Java. Furthermore, I have no problem undertaking any kind of work that requires Microsoft Office (and alike). Finally, I have solid experience in Matlab if needed. My professional experience is: - 3 months: Trainee Technology Analyst (Postgraduate Placement) at Société Générale. - 4 months: Cloud Analytics, Optimisations and Modelling Team Leader at Microsoft - 1 year : Java Web Developer at MedicAnimal Ltd. - 6 months: Web Designer at Folk Museum of Xanthi - 6 months: Database Designer at Democritus University of Thrace & Medical Center in UK partnership Please check my LinkedIn profile for further information: http://uk.linkedin.com/in/evangelosbalanis/

    $20.00 /hr
    56 hours
    4.97
  3. 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
  4. Brian Calvillo

    Brian Calvillo

    Mobile Developer

    Spain - Last active: 1 day ago - Tests: 1

    I started in Canalip, one of the best web development companies and SEO pages using PHP, MySQL and jQuery with Joomla frameworks. Then I worked in Novaigrup, developing online stores and custom projects by programming from 0. In Novaigrup i development projects for Purina. After completing a course on Android Mobile Buisness and entered Applications to develop the CRM app Optimasuite for commercial mobility. Then as I entered Innofis mobile apps developer developing high level for major companies like leading bank Arabic Alhali (NCB), Salespoint (app for business in mobility) and the app "Feed Smiles" from Danone.

    $16.67 /hr
    1,618 hours
    4.85
  5. Kolumban Lehel

    Kolumban Lehel

    Mobile and web game developer

    Romania - Last active: 4 days ago - Tests: 1 - Portfolio: 4

    I have 8 years experience with Flash ActionScript 3, creating social, mobile, browser games and apps, websites, highly configurable flash components and other various projects. Strong experiences in creating games: car game with physics, casino games (slot games, video poker, blackjack, roulette), facebook games, numerous card and puzzle games, mobile (iOS, Android) and browser games, multiplayer games. Strong experience in the development of Flash Applications with heavy server communication (Remoting, Sockets, JSON) and JavaScript / Flash bridging In-depth knowledge of ActionScript 3, XML, FlashDevelop Tool, Air, OOP, PureMVC and design patterns. Basic JavaScript, PHP (AMFPHP) and MySQL knowledge. Specialities: Flash ActionScript 3, games, Air, Android, iOS, Nape physics engine, Starling

    $22.22 /hr
    24 hours
    4.99
  6. Konstantin Litvin

    Konstantin Litvin

    Wireless networking engineer

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

    I am senior networking&wireless specialist at wireless ISP. Under my control more than 3000 wireless customers and more than 140 base stations (BS) based on Mikrotik hardware. Most of this BS was planned by me and built under my direction. I'll help you with the network planning, equipment selection for your tasks, configuration and support - from the idea to the finished solution. I can provide integrated solutions, from design to working result.

    $11.20 /hr
    27 hours
    5.00
  7. Maciej C.

    Maciej C.

    Certified Microsoft SQL Server/BI Specialist

    Poland - Last active: 19 days ago - Tests: 3

    I'm Microsoft certified professional with 7 years of experience related to SQL Server. I was working in all aspects of development within SQL Server. Initially I started as relational database developer and successfully I was moving more into Business Intelligence part of SQL Server. Currently I work as senior data warehouse developer on permanent basis in UK. To my responsibilities belong business requirement gathering, data analysis, data modeling and then developing SSIS packages and SSAS cubes.

    $33.33 /hr
    233 hours
    5.00
  8. Saul H.

    Saul H.

    Java/C++/.Net Software Engineer/developer/integrator/consultant

    Venezuela - Last active: 6 days ago - Tests: 3

    Knowledge Areas and skills Custom Software Development, POS, intranet system, administrative systems and integration with intelligent software solutions consolidate, organize and centralize amount of information located in different divisions and departments, so that executives make decisions about payments, suppliers , prices, materials management, promotions, etc. Algorithms and programming skills, strong knowledge of C/C++ and Java. Strong knowledge of data structures, strings, sorting, arithmetic and algebra, combinatorics, number theory, backtracking, graph traversal, Algorithms for graphs, dynamic programming and computational geometry. Accounting area, experience in handling all movement of materials between stores and shops, all the accounting related to its retail. Point of sale Area, experience with integration between POS software and label printers, fiscal printers, barcode readers, fingerprinter and keyboards for point of sale. Oriented Object Programming and Low-level: exprienced in Java and C/C++/C#. QT libraries and Visual Basic. Scientific Programming: Matlab. IDES: Intellij Idea, Eclipse, Netbeans, Kile, Quanta. Servers: Apache-Tomcat. Functional Programming and AI: Haskell and Prolog. Database: MySql Oracle, Postgres, SQL Server and FoxPro. Web Development/Frameworks: Php, Struts, Vaadin, ZK, html and css.

    $30.00 /hr
    1,756 hours
    5.00
  9. Mikhail Olshanski

    Mikhail Olshanski

    Expert Java and Android developer

    Russia - Last active: 8 days ago - Tests: 1

    Hello I'm a professional Java and Android app developer with more than 3 years of full-time professional experience. My goal is to provide fast and clean product that meets my client's needs. I have successfully completed complex Java projects using Liferay Portal, Spring framework, Play Framework, Mule ESB and other technologies and frameworks and quite some Android projects including NDK-based ones and with use of tools like parse.com or Realm DB or Android Support Library. Also, I have experience with JS frameworks: Angular, AUI and Jquery, as well as as with plain JS.

    $15.00 /hr
    175 hours
    4.70
  10. Jon Garrido

    Jon Garrido

    Gis Developer

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

    For more than 10 years working with GIS technologies. I'm expert in Web GIS development with ArcGis API for javascript and Silverlight, Openlayers, leaflet, google maps and many others. I have worked as a GIS analyst in many companies such as Bureau Veritas, Tragsa and Basoinsa. Finally I became a GIS developer, working in Tecnosylva and in Tracom Consulting as a GIS Manager. I can develope as well desktop GIS software with .NET, Arcobjects, Dotspatial and Python. I'm responsalbe of map servers maintenance such as ArcGis for Server, Mapserver and Geoserver. I have been Database manager with SGDB like MS SqlServer, MySql, PosgreSQL+Postgis. ESRI Young Scholars Award 2012-2013 winner

    $39.00 /hr
    181 hours
    4.76