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Mathematics Upwork freelancers typically receive a client rating of 4.80.

Last updated: October 1, 2015
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Victor De Buen

Victor De Buen

Statistical consultant

Spain - 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

Aleksandr Shushpanov

Aleksandr Shushpanov

Software Engineer

Russia - Tests: 3 - Portfolio: 1

I have great experience in developing and maintaining multiplatform applications running both on Linux/Windows. I prefer to use C++ because it is a perfect language for a lot of tasks, it provides maximum flexibility and performance. However, I have necessary knowledge in scripting languages to use them efficiently and I am able to study any technology required for a particular task to be completed.

$20.00 /hr
0 hours

Aram Baghiyan

Aram Baghiyan

PhD in Engineering

Armenia - Tests: 4

I am a PhD in Engineering in the field of Control, Control Systems and their Elements. I have a wide range interests in robotics, artificial intelligence, aerospace engineering and weapon systems. I also have a wide range of professional experience in the field of aircraft and armament systems and their elements. I am an ambitious and well qualified researcher with an aptitude for creative problem solving and analysis with attention to detail. Specialties: Aircraft Systems, Robots and Robotic Systems, Aircraft Armament, Control Systems, MATLAB, Target Tracking

$10.00 /hr
0 hours

Bosco Thuo

Electronics and Telecommunications Engineer and a programmer

Kenya - Tests: 3

Other than my qualification as an engineer of which I can rate at a 9/10, Am also an excellent programmer and have done a number of applications using java and android as well as developing websites and databases. I have a vast knowledge in mathematics, wireless communications, Cisco devices among other areas. I seeking for opportunities to practice my electronics, telecommunications and programming skills. I have interned at government of Kenya police headquarters in telecommunications department, and major communication companies and banking firms.

$7.00 /hr
0 hours

Alexandros Sarris

Alexandros Sarris

Mechanical Engineer/Translator/Data Entry

Greece - Tests: 2

*Personal Achievements* #Mechanical Engineering University Student (Aristotle University Of Thessaloniki) #Graduated High School with a school certificate grade 19+ #C1 Degree in English #B1 Degree in German #Good 2D AutoCAD user , also working on Solidworks right now #Exposed to Operation Research courses, also Statistics #WEKA and Crystal Ball knowledge #Great in translating from English to Greek( Greek native speaker, great grammar , without any mistakes) #Good use of MS Word , average use of MS Excel #Fast Typing

$6.00 /hr
16 hours

Nikolay G.

Nikolay G.

Problem solver

Russia - Tests: 2 - Portfolio: 1

Wide specialist: strong technical skills, mathematical background, pedagogical experience, business analytics and leadership. Was working in different roles, that covers the process of creating customer solution. Always was customer-oriented person, thinking not only about delivering product to customer, but also about resolving customer’s problems. I always keeping my promises, responding in 24 hours or keeping appointment. Don't have troubles with accidental illness of close relatives, broken hard disk or any other typical freelancer accidents, that prevents from delivering solution in time. Overall experience in IT: 13 years. Experience in software development: 9+ years. Pedagogical experience: 11+ years. Business analyst experience: 4+ years. Project management experience: 4+ years.

95% Job Success
$25.00 /hr
602 hours

Caleb Mackay

Caleb Mackay

Data Mining Professional

South Africa - Tests: 3

I am currently a self-employed Forex Trader, that has a lot of extra time and am willing to work part-time doing anything concerning the below skills mentioned. I am an honest person, with low working rates and I'm looking for honest work from people who need help. I have great Microsoft office skills (2007, 2010 & 2013) , I am also comfortable with Adobe acrobat for pdf files. I have knowledge of mathematics, statistics as well as IT software such as Java, Oracle, & Sql sequences, as I did a Bachelor of Science degree in BMI. I have some experience with video editing software like Adobe Premiere, Pinnacle Studio & Corel Video Studio as well as video/audio conversion software. I understand almost everything when comes to using a computer to its full purpose, so I am able to do almost anything someone would ask me to do and with certainty that the work will be done successfully, professionally & punctually. I have also a good ear to music or sound for transcription purposes or other.

89% Job Success
$7.78 /hr
252 hours

Alejandro Naser Pastoriza

Alejandro Naser Pastoriza Agency Contractor

Software Developer

Argentina - Tests: 4

- Computer Scientist: Bachelor's degree (GPA %99.4), finishing Master's (GPA: 99%) thesis on Data Managment, "Adaptive Cache Managment for Arbitrary SQL Workloads". - Full-stack Ruby/Python Developer. - Diving into Data Science. - Experience in research & development, both in the software industry and in the academic world (Summer @ EPFL Data Intensive Systems and Applications Laboratory). I enjoy bringing the best of both worlds to combine cutting-edge theory and technology to come up with a solution for real-world problems. - Interested in Data Managment, Information Retrieval, Data Analysis & Visualization, Machine Learning, Natural Language Processing, Web Scraping, Web Development and Research papers implementation. - Familiar with: * Python, Django, Flask, Scrapy, numpy, scipy, pandas, scikit-learn, NLTK, matplotlib, ipython-notebook, bokeh, gensim. * Ruby, SciRuby, Rails, Rspec, Cucumber, Devise, MiniTest, Test Unit, HAML, ERB, Slim, Capybara, I18n, Sidekiq, Nokogiri, Will Paginate, Paperclip, Shoulda, FactoryGirl, OmniAuth, Bundler, Capistrano. * HTML/CSS, Javascript, CoffeeScript, jQuery. * MySQL, postgreSQL, redis, mongodb.

Associated with: Cordatazo

95% Job Success
$22.22 /hr
460 hours