Python Developers & Programmers

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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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Python Job Cost Overview

Typical total cost of Upwork Python projects based on completed and fixed-price jobs.

Upwork Python Jobs Completed Quarterly

On average, 626 Python projects are completed every quarter on Upwork.

626

Time to Complete Upwork Python Jobs

Time needed to complete a Python project on Upwork.

Average Python Freelancer Feedback Score

Python Upwork freelancers typically receive a client rating of 4.73.

4.73
Last updated: May 1, 2015
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  1. Dave M.

    Dave M.

    Perl, Python programmer, web scraping / data extraction

    United Kingdom - Last active: 2 days ago - Tests: 5

    I am a freelance software developer providing web scraping services and data crawling using Python and Perl. Over the last 5 years, I have developed a wide range of software solutions to crawl and extract different types of data from a myriad of websites, e.g. real-time data, business listings, sports results data and other related data sources. My experience lies in automated web scraping with well defined specifications including website and output format. Website data delivered often are in standardised CSV or SQL formats and typically involves further post-processing of crawled data according to your requirements. Code is written in Python and Perl following agile and TDD software design techniques to ensure code longevity, reliability and robustness. I also have experience in mathematical languages Matlab, R, as well as databases SQL, MongoDB, Linux administration, and many web API's including Dropbox, Twitter, Twilio and Sendgrid. As well as web scraping, I am capable of completing similar web related projects using Python and Perl, for example, filtering log files, web monitoring, notification systems and backend web apps. Please contact me if you have any available projects!

    $66.67 /hr
    489 hours
    4.92
  2. Guangming L.

    Guangming L.

    Data Scientist and R Expert

    United States - Last active: 1 day ago - Tests: 7

    I have 7 years of experience in data analysis. I'm the Chief Data Scientist and founder of Cabaceo.com, a data science consulting company in Ann Arbor, Michigan, US. I also teach people how to do data science using the R programming language at www.MasterR.org, where you can receive high quality training materials for free. I used to work as an analytic consultant for FICO, where I built scorecard for Picture People to predict customer response rate to their marketing campaigns, which doubled their ROI. I also built customer segmentations for Canadian Tire Bank, which gave the executive team a holistic understanding of their customers for the first time and resulted in a chapter of a book. More recently, I have built a linear regression model to explain the relationship between interest rate of peer-to-peer loans and borrowers' characteristics using data from LendingClub, a two-level clustering-and-randomForest model to predict human physical activities using smartphone data, a logistic regression optimization based on precision and recall, a R-implementation of the cross-sectional regression and quintile-portfolio construction methods published in the Journal of Economic Literature. I have a masters degree in Biostatistics from the University of Michigan and a bachelor's degree in mathematics from New College of Florida. I'm an avid MOOC taker, constantly learning new techniques and tools in data science and machine learning. I took all the courses in data science, statistics and machine learning from Coursera, Udacity and Edx. I respond all my messages in less than 24 hours.

    $100.00 /hr
    585 hours
    4.97
  3. Patrick S.

    Patrick S.

    Quant Finance, Trading Strategies, Algorithms, C#, Python, MATLAB

    United States - Last active: 4 days ago - Tests: 2

    If you want to create a trading system, run a statistical analysis, develop a pricing model, build a financial GUI, or find a pattern in a sea of data, I may be the guy to help. I work primarily in MATLAB, C#, and Python. On the finance side, I'm a CAIA Charterholder, with an Economics degree and experience at McKinsey & Company. On the technical side, I hold degrees (with honors) in Engineering, and worked at a number of California tech companies through the 1990's and early 2000's. Since 2008 I've focused my work in the field of computational finance. Recent clients have included: a Swiss proprietary trading desk (Energy Futures), a Canadian hedge fund (Currencies), a US asset management firm (Equities & Bonds), a US portfolio consulting firm, a US aircraft manufacturing operation, and several others. For those clients I have developed, backtested, and deployed alpha-seeking trading strategies, automated execution algorithms, portfolio optimization models, user-friendly GUI tools. Techniques have included machine learning algorithms, classifiers, feature detectors, digital filters, matrix-based models, and concepts borrowed from detection theory and signal processing, along with various technical analysis indicators. I've worked with many financial platforms and data feeds: Deltix QuantOffice (C#), CQG API, Bloomberg, Interactive Brokers API, MultiCharts (PowerLanguage), MultiCharts.NET (C#), TradeStation (EasyLanguage), FIX (HotspotFx), ITCH (HotspotFx), etc. I can integrate other systems with MATLAB or Excel where there's an advantage. I've created C/C++ .mex files, VBA macros, Java/MATLAB integration, MATLAB/Excel integration. I've been programming in MATLAB since 1990, and can sometimes get it to do things that others can't. I can also translate or port a MATLAB application to other languages, especially Python or C#. I'm located in Southern California. For clients located within 2 hours, I can drive to meet you (sometimes same day, schedule permitting). I'm also happy to work remotely. I'm a US Citizen and have held a security clearance, though it is no longer active. The foundation of every successful project is good communication. If you have a project that needs to be done well, then let's communicate!

    $95.00 /hr
    786 hours
    5.00
  4. Jeremy Thiesen

    Jeremy Thiesen

    Google Analytics Expert and Data Scientist

    United States - Last active: 7 days ago - Tests: 1

    Hey There! I'm Jeremy. If you work with me, I will make sure you have what you need on time, fully functional, and something that is easy to use. I specialize in the making insights from data that are actionable and make a real difference for your business. I am a big believer in following a process. I have built a process to identify your business needs first and then build analytics that provide the insights you need to achieve your business goals. I want to get straight to the point in order to get you what you need and watch your business prosper.

    $60.00 /hr
    14 hours
    5.00
  5. Gabriel Moncarz

    Gabriel Moncarz

    Computer Engineer - Python developper

    Argentina - Last active: 16 hours ago - Tests: 5

    Computer Engineer, Master in Quantitative Finance and curruntly studing a master in Data Mining and Knowledge discovery. I've been developing backend software, tools and plugins to international companies for the last 10 years. I code in Python, Perl, Java and C. All my developments run on Linux and Unix environment. I manage Linux servers, DB Engines, Tomcat/apaches servers and most well known Linux tools and services. For statistical analysis I work with R, SPSS and MatLab.

    Groups: oDesk Verified Web Developers

    $38.00 /hr
    2,237 hours
    5.00
  6. Luke Otterblad

    Luke Otterblad

    AWS and GCE Engineer. Python, Javascript and Elasticsearch Programmer

    United States - Last active: 1 month ago - Tests: 7 - Portfolio: 3

    Senior software developer specializing in improving the accessibility, intelligence, and flexibility of code. Experienced at working with startups. My areas of interest and expertise that you may require include AWS and GCE Engineering, front end and back end web development, Elasticsearch integrations, recommendation engines, natural language processing and data analysis. Currently continuing a nine year career in analysis and web development. I'm highly self-motivated and seek challenging projects that match my expertise (http://github.com/lotterblad). Jobs I do: - Design and get systems up and running in the cloud - improve search and search user interfaces - integrate visualization and analysis pipelines - Make applications more intelligent by using things like recommendation and spam classifiers - Program front end UI designs and fix bugs related to cross browser compatibility - build out platforms communicating using API's Tools I use: - Amazon Web Services (EC2, S3, Elastic MapReduce) for development and deployment - Google Cloud (BigQuery, App Engine, GCE) - Elasticsearch Server for storage and query, Kibana and logstash for log management - Website and app development, Web Development, machine learning and natural language processing with Python and Java. - Web development with Node, Express, and Angular as well as other Javascript libraries like D3.js, jQuery, and three.js - Time series analysis, statistics and visualization with the R programming language - Database Development: Google Datastore and MongoDB (document database), MySQL and Postgres (relational), redis (key-value) and memcache - Twitter Bootstrap, or Responsive Design with jQuery, CSS, HTML for mobile responsive landing pages as well as general purpose web pages. - Integrations using Mule ESB Samples of open-source code available: http://github.com/lotterblad

    $90.00 /hr
    2,189 hours
    5.00
  7. Ilija S.

    Ilija S.

    data scientist

    Serbia - Last active: 10 days ago - Tests: 2

    Learn through data analysis, would be the tag line for me. I am a data scientist with business intelligence and text analysis background. I am also a JAVA/php/javascript developer, like databases, have a PhD (if important). Strong incentive to build systems that analyse and learn from data. I've done this for the last 8 years in academia and industry, and will try to do it for a long time (still only 30).

    $38.89 /hr
    299 hours
    4.99
  8. Ryan K.

    Ryan K.

    Computaional Scientist / Software Engineer

    United States - Last active: 14 days ago - Tests: 6

    Broad experience designing, developing and implementing software tools and computational methodologies for applications in biotechnology, bioinformatics, genomics, drug discovery, and business intelligence. Software engineering, scientific programming, scripting in Unix/Linux environments. Excellent coding skills in C, Python, Ruby, Perl, R, shell (sed, awk). Experience with database modeling & queries (MySQL), web technologies (LAMP) PHP, CSS, JavaScript, HTML. Computer science & IT familiarity with algorithms, data structures, graph theory. Experience with software life cycle, testing procedures, system administration (Linux). Machine learning & statistics with custom code (C, Perl, Python) and statistical packages (S-PLUS, R scripts) for feature selection, data mining, classification, predictive modeling. Data QC and sampling, correlation analysis, plotting, visualization. Business proprietor, client interfacing, requirements gathering, project proposals and project management documentation, reports and technical writing.

    $44.44 /hr
    0 hours
    5.00
  9. Umar S.

    Umar S. Agency Contractor

    Data Scientist (NLP / ML / Hadoop / Spark / Mahout / Solr / Nutch )

    India - Last active: 16 hours ago - Tests: 11 - Portfolio: 1

    Strong Interest and extensive experience in the following areas: * Machine Learning * Text Analytics * Big Data * Search * Large Scale Crawling Expert in using libraries and frameworks like: * Apache Hadoop * Apache Spark * Apache Tez * Apache Mahout * Apache Nutch * Apache Solr * Apache Lucene * Elastic Search Preferred Languages : * Java * Python

    Associated with: SimplyPhi Software Solutions Agency

    $66.67 /hr
    4,188 hours
    4.88
  10. Juan Luis Herrera Cortijo

    Juan Luis Herrera Cortijo Agency Contractor

    Data Scientist

    Spain - Last active: 1 day ago - Tests: 16 - Portfolio: 7

    Do you have some question that requires a statistical or machine learning answer? No problem. As a data scientist with 15 years of experience, I have the technical knowledge and the communication skills needed to solve your problem and, most important, give an answer that you can apply to your field of interest. What I offer to you is a full data analysis/machine learning stack, including: - Getting and organizing your data. - Selecting the most relevant statistical or machine learning technique for your case. - Applying the technique to your data. - Writing a report that explains every step taken and makes a interpretation of the results. All written with enough technical detail, but that doesn't require a depth statistical knowledge to follow. - Assistance in applying the results to your specific field. I can do all this using any or several of the following: R, MATLAB, Python, MySQL. Everybody can apply an out of the shell statistical algorithm to some benchmark data. But I'm an expert in the tricks needed to apply those algorithms to real data.

    Associated with: Data Crunchers

    $44.44 /hr
    386 hours
    5.00