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Python is a dynamic general-purpose, object-oriented programming language designed for code readability and used for web applications (e.g. Google, Yahoo and YouTube). On Upwork, the world’s largest online workplace, companies hire Python programmers to successfully complete jobs including loading datasets, creating widgets, and performing data transformations.

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Last updated: October 1, 2015
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Kari Hirvi

Kari Hirvi

C++/Qt/Matlab/Python developer with scientific background

Finland - Tests: 5

I have years of experience with Matlab and I'm very productive with it, whether it's algorithm development, visualizing data or creating GUIs, for example. I'm also well versed in Python and I can provide a working software version quickly with rapid iterations with feedback from the client. I have also professional experience with C++, C# and Java, and I can bundle them into the project as needed. I have a PhD in physics and I've been working in different positions ranging from project manager and developer to customer service and helping sales. I can translate your problem into working code, and, if needed, refine the project requirements based on your business case. Below are few examples where you could gain tangible benefits from my experience - Matlab development of all kind, e.g., algorithms, GUIs, full applications - Data conversion and processing from one or multiple sources - Implementing algorithms based on scientific publications - Converting algorithms from another language to C++,C#,Java, Python or Matlab - Data analysis and visualization - Requirement analysis & management, e.g., reading texts and extracting measurable requirements from them with traceability to the source - Measure requirements quality by classifying them, e.g, is there an acceptance criteria, is this a system or user requirement, does the requirement have multiple requirements in it. - Creating and writing acceptance testing procedures with traceability to the project requirements I can work on both Windows and Linux platforms. Looking forward to working with you! Kari References: - LinkedIn: - My programming blog: - GitHub:

$60.00 /hr
0 hours

Jose Luis Oronoz Troconis

Jose Luis Oronoz Troconis

Web Developer / Magento - Opencart / Mobile - Responsive / Linux

Venezuela - Tests: 1

I am a skilled programmer with over 10 years experience in various industries, i am a specialist developer of systems under Web Platform, geared for both desktop computers and mobile devices, using the highest technologies, as well as advanced software and techniques I have developed systems for several sectors among which; Banks (ISO 8583 implementations in Web platform, Kiosk Development, development of mobile banking and internet banking), software development for government and SME sector. At the same time I am a specialist in Linux platform, with more than 8 years of experience in d evelopment, OS administration, and network administration. I am currently a fan of software development for mobile devices using such frameworks (jQuery Mobile or Sencha) developing applications tailored to the customer. I have broad experience in the following languages and systems PHP AJAX JQUERY JQUERY MOBILE MYSQL POSTGRES MSSQL PHOTOSHOP C # ASP.NET (Basic Level) Great experience with Linux and Unix operating systems Good knowledge in the area of information security. I am a creative person, professional, like I always give my best in all projects, and responsible, all jobs are guaranteed and will provide the necessary support for your project will have the desired success. Thanks in advance

$22.22 /hr
3,591 hours

Ivan Paunovic

Ivan Paunovic

Electronic Engineer

Serbia - Tests: 2

Over the last 5 years, I have developed a wide range of software, analog/digital circuits and embedded systems as well using Protel 99SE, VHDL, C/C++, Visual Studio, Proteus. My competency lies in good knowledge of electronic and programming and I am seeking opportunities to build embedded systems. Also any challenge to design a hardware or software solutions is a welcome . I also have some experience in the following areas: UNIX/Linux, Altium Designer 9.4, MatLAB, Simulink, PLC programming tools, Atolic, Arduino, Eclipse, MLDesinger, Parts&Vendors, AutoCAD Inventor and software and harware design and testing.

$8.89 /hr
0 hours

Marek C.

Quantitative analyst, R, matlab, Data scientist


I am looking for challenging problems that require mathematical skills, ingenuity, programming skills, and deep and original thinking. I worked for a few different companies and always on very interesting problems. I am looking for project in the areas of algorithms, machine learning, probability, stochastic methods, signal processing, data compression, predictive methods, mathematical methods in finance, high frequency trading strategies, genetic algorithms. risk analysis, adaptive learning algorithms, discovery of patterns, data analysis, evolutionary computation. Learning classifiers, wavelets and all preditictive methods ( svm, hidden Markov models, neural networks) applied in financial markets. I spent also a lot of time developing trading strategies in different markets, using machine learning algorithms, genetic programming. My favorite tools are matlab and R.

$28.89 /hr
55 hours

Flavio Ferreira

Flavio Ferreira Agency Contractor

Flavio Henrique Ferreira

Brazil - Portfolio: 1

I am a Web Developer with more than 7 years experience with development and i am Zend Certified Engineer I have experience with PHP, Javascript, MongoDb, SqLite, Mysql, Postgree, JQuery, Ajax, Html5, Linux, Java (Intermmediate), Laravel (3,4,4.1,4.2), CSS, Bootstrap, . Some Jobs Laravel:

Associated with: Eduardo Cruz

$38.90 /hr
0 hours

Rowan V.

Rowan V.

Data Scientist, Data Developer, Visualization

United States - Tests: 7

I am passionate about quantitative investigative methods and data analysis. I have experience utilizing a variety of methodologies and tools, including R, Python, JavaScript, and Tableau in order to answer data-related questions. Currently @Twitter, formerly at Spartz, Inter-American Development Bank, and Cambridge Energy Labs. I have a B.S. from MIT, and have a strong background in experimental design, statistical analysis, data visualization, and machine learning techniques. With over 10 years of programming experience and a strong statistical background, I can help you make sense of your data. I am able to provide writing and coding samples of my past work, for a few of my past projects, please check out

$80.00 /hr
9 hours

Joseph M.

Joseph M. Agency Contractor

Professional ITIL consultant looking to help improve your ITSM stack

United States - Tests: 1

A Managing Business Consultant of 23 years experience with extensive subject matter expertise in IT Services Management (ITSM) and ITIL, methods, processes, strategic technology infrastructure planning, and developing cost effective solutions to meet customer business requirements. ITIL certified V2 Service Manager and V3 Expert. I can perform an analysis of business requirements, drivers and I/T resource consumption across multiple platforms and develop a macro level capacity planning methodology.

Associated with: Joseph Miller

$83.33 /hr
1,081 hours

Adam Daum

Adam Daum

Excel Reporting and Automation Expert

United States

I have a full time job, but I love solving problems, and I hope to one day be a full-time, independent consultant, so I'm looking for side projects :-) I've been using Excel for about 15 years. I graduated from Indiana University with a finance degree, and started work in financial services as a reporting analyst. Since then, I've worked in a variety of industries, including electronic payment, tech, and higher education, usually as an analyst, using a lot of SQL and Excel. More recently, I've been working on the IT side of things, as a systems analyst, and programmer, designing, developing, and testing Peoplesoft and Web applications. Some of my cooler Excel projects include: An Excel/VBA application to generate a tree import flat file for PeopleSoft; A MySQL/Excel macro-based auto-generated e-mail, sales report; and an Excel/VBA application to import several telecom usage files, re-rate them, and generate flat files for import into Peoplesoft. I'm Excel 2010 certified. Other experience and skills include: Advanced SQL, Python for data analysis, Javascript and HTML, PeopleSoft Financials configuration, design, and development. Python Web application development with Django and Flask frameworks; AngularJS; .NET technologies, including C#, SQL Server, LINQ, SSIS, WebServices, WebForms.

$55.56 /hr
0 hours

Kim Bech-Hansen

Business Intelligence Analyst


In the last 3 years, I've been working on various Business Inteligence and integration assignments using the Pentaho Business Analytics Suite and the Pentaho Data Integration tool (Kettle). For the last year I've also delevoped solutions in YellowFin BI. My core competency is in the data-handling (integration and cubes) and presentation in dashboards. I'm an economics graduate and have business understanding. Besides the knowledge in the field of Business Intelligence I'm experienced in java development (used in some website development I've been involved in and used for plugin development in Kettle). I'm experienced in MySQL, PostgreSQL and Project Management. I have basic skills in MongoDB, Python and R.

$33.33 /hr
0 hours