Top Upwork Freelancers

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  1. Ryan ODonnell

    Ryan ODonnell

    Python, Web-Stacks, and Go

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

    Experienced Python and Go full-stack web-developer. Bootstrapped many websites in Python and associated frameworks. Tasks included: full-stack administration on both Windows and Linux technologies, backend software development, and front-end responsive and mobile design. Can easily develop a working prototype of a website very quickly, and deliver a functioning product in an acceptable time frame. Cisco Certified technician willing to consult on various technology needs.

    $100.00 /hr
    0 hours
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  2. Johannes M.

    Johannes M.

    Expert in data entry, data conversion and software development

    Philippines - Last active: 1 day ago - Tests: 6 - Portfolio: 2

    Exposed in data entry, data processing, research, and software development for windows desktop and web application for almost 6 years. For the past years I'm involved in different projects that focused on providing good quality of work to our clients and making sure that they are satisfied with our output and on schedule. I can perform my job well in a team setup or working as individual with less supervision from my superiors. I'm a fast learner, resourceful, goal-oriented and I loved providing solutions to different problem.

    $5.56 /hr
    1 hours
    0.00
  3. Nataliia Nikolska

    Nataliia Nikolska

    Front-end developer

    Ukraine - Last active: 1 day ago - Tests: 4 - Portfolio: 10

    Last one year I'm actively engaged in the site layout using the following technologies: CSS3, Sass, HTML5 and JavaScript. Knowledge of programs: Sketch, Adobe Photoshop. I can work with Retina-devices. I chose this direction, because I like the result obtained in the end. In my free time i'm studying Selenium WebDriver (as NodeJS module) to create the automated tests for web sites.

    $15.00 /hr
    0 hours
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  4. Spencer Dossett

    Spencer Dossett

    Co-Founder - TeachToMarket

    Canada - Last active: 21 days ago - Tests: 5

    My strength lies in working with data and numbers. My educational background is in Accounting and Business. I currently work for one of the largest hedge fund administrators in the world building complex macros in Excel and Access for various business groups. I have a very strong proficiency with Microsoft Excel and Google spreadsheets. I can work with data, create complex lookups/formulas, create macros (software programs in excel/access), work with APIs, and work on web apps. I am currently building business simulation software that allows students to learn how to make business decisions in a video-game like environment. It uses complex formulas to award sales in the game based on the decisions that were made by the students and then produce reporting back to them. (you can check out the web app at www.teachtomarket.com). I also have working experience in MySQL, Mongodb, JavaScript, and PHP. I am looking for interesing projects that will build on my skills working with data.

    $23.33 /hr
    0 hours
    0.00
  5. Ben Garside

    Ben Garside

    Salesforce Consultant, Data Analyst and SQL Developer

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

    Over 7 years commercial experience working on a variety of systems and data driven projects. Primary areas of speciality include SQL and Salesforce. Some examples of previously completed Salesforce projects include: • Implemented and customised a new instance of Salesforce for over 100 active users working globally across multiple business functions. • Managed a transition from a Goldmine SQL database to Salesforce. This involved a lot of data conversion work and user acceptance testing. • Writing step-by-step documentation – either aimed at a technical audience or from an end user perspective. • Developed several integrations feeding data into Salesforce using both the Salesforce Bulk and Soap API’s. Some examples of previously completed data/SQL projects include: • Writing SQL scripts to perform various database functions such as changes to table structures and record inserts. • Packaging SQL queries/stored procedures into user friendly applications such as Excel, Access or bespoke .Net applications – allowing them to be run easily by end users. • A data improvement project involving identification of gaps in CRM data; documenting recommendations for improving the quality and standardising field values; implementing data updates and introducing field validation. • Develop a small MySQL database to hold IP ranges and country data. My approach is always honest, detail orientated and friendly. I look forward to hearing of any opportunities to work together.

    $5.56 /hr
    0 hours
    0.00
  6. Tigran Tumasov

    Tigran Tumasov

    Front-end Developer

    Russia - Last active: 1 day ago - Tests: 4 - Portfolio: 5

    My main field of work is creation of responsive websites., and I have about 2 years of experience in it. My main skills include: - JavaScript (mostly CoffeeScript) - CSS (with preprocessors like Sass and Stylus) - HTML (Jade/Slim; I also use Brunch as HTML5 build tool) - Working with GitHub / Bitbucket I also enjoy learning new technologies. I'll be glad to answer any questions you might have regarding anything written above, and, well, any other questions about myself, if any, so feel free to ask.

    $15.00 /hr
    0 hours
    0.00
  7. Facundo Apesteguia

    Facundo Apesteguia

    Technology Specialist

    Argentina - Last active: 7 days ago - Tests: 1

    I have been working on systems since 2003 when I get my first job as a technical support engineer. I have increased my knowledge in different areas and now I am acting as Project Manager because is in what I have passion.. I am a person who enjoys the challenges and bring new ideas to improve the companies in which I work. I have several skills in differents technologies, such as databases, code development and storage administration.

    $15.00 /hr
    0 hours
    0.00
  8. Rahul W.

    Rahul W.

    Consultant

    India - Last active: 12 days ago - Portfolio: 2

    Almost 5 Years of proven working experience of J2EE Related Projects and Currently working on ERP workflow application using JSF, ICE Faces with Hyperion Integration . Web Frameworks, Servers and Tools: - Struts MVC, Spring , Log4J, Axis Web Service, SOLR , Jason Objects Persistence Layer and O/R Mapping Tools : -Hibernate3.0+JPA (Java Persistence API), JDBC Application Presentation Layer: -Struts Tags, JSP, ICE Faces, JSF Ajax Framework:-ZK Framework,ZK MVC,ZK MVVM, DWR frame work. Application Server : - Weblogic 9.2, Jboss, Glassfish, Tomcat 6.0

    $11.11 /hr
    0 hours
    0.00
  9. Diogo Braga

    Diogo Braga

    Game Developer

    Portugal - Last active: 2 days ago - Tests: 1

    Over the course of 6 years, I have developed game mechanic engines in game maker for. I have also made a few games for android using game maker as well and I've done a few applications for windows using Visual Studio. I also possess experience in java and c/c++ development, whether it's an application based for consumer purposes or a scientific-driven development. My best skill is making video games using Game Maker and I am looking for opportunities in video game development and desktop application development. I also possess some experience in music composition and vocal singing.

    $3.33 /hr
    0 hours
    0.00
  10. Victor De Buen

    Victor De Buen

    Statistical consultant

    Spain - Last active: 7 days ago - Tests: 1

    Over the last 20 years, I've developed a wide range of tasks about statistical models, including software development, model building and massive data catching and handling. I'm specialized in bayesian models, both dynamic (ARIMA, VECAR, Bass diffusion) and static ones (Probit, Logit, Counting Regression) applied in multiple real world problems like sales forecasting, churning, pricing, quantitative marketing, macroeconomic and commodity forecasting, for dozens of medium and large enterprises in several sectors as telecom, finances, energy, mining, retailing or agriculture. There are some examples Telefónica (ARIMA-Bass hierarchical models to forecast launching of new products) Livraria Cultura ([Brazil] Massive X-ARIMA Models to forecast millions of pairs SKU-store Vale do Rio Doce ([Brazil] Models forecast of iron ore prices) Monsanto ([Brazil] Bayesian model to forecast area planted with winter maize in Parana and Mato Grosso) Coke (Effect of long-term advertising) Bayes (Combination of macroeconomic forecasts) La Voz de Galicia (daily distribution for point of sale and promotional analysis) Banco do Brasil (Demand Cash) Attentive Chile (Charning) Scrapping and storing of world meteorological gridded hourly data and forecast Telefónica (Indexed query language over compressed binary data) Bahía de Bizcaia (Electricity price schedule) Telefónica (Launch anlysis of broadband product Imagenio) TeleSP (Promotions and churning) TeleSP (Brazil) (Application of lines and consumption by type of traffic) Microsoft Business Solutions (forecast sales and product classification of ERP Navision partners) FEDA (Andorra) (hourly consumption and optimization of hydropower resources) Telefónica (Analysis of competition and churning) Mercadona (sales forecast for the optimization of resources) Credit and Surety (macroeconomic model for pricing) CATSA (Canal +, CSD) (forecast calls and optimization of HR for the call center) ENUSA (On-line calculator for statistical functions) Recoletos Group (MARCA) (Sales and promotional analysis) Telefónica (automatic ARIMA modeling of time series) I'm experienced in C++, SQL, R, PHP, Python and I've created the open source programming language TOL (Time Oriented Language)

    $116.67 /hr
    0 hours
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