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Last updated: October 1, 2015
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Cristian Lozano

golang/python/django/machine learning/backend developer

Colombia - Tests: 7

Great passion for the computer and algos, I define myself as a back-end developer with high math skills, always concerned for the efficiency and correct utilization of the limited resources. My programmer skills cover a wide range of needs, scientific and engineering applications, multi platform (linux,windows , mac) desktop solutions and the creation of modern and responsive web pages and cloud services. backend skills (mainly) =========================== Python C Go lang java node js concurrent programing couchdb, mongodb, redis, NeoJS. linux amazon aws math skills (second) =========================== Matlab wolfram mathematica scipy, numpy Calculus Differential equations Optimization (linear and nonlinear) finance skills ========================== derivatives, bonds, bitcoins, speculation Frontend skills ====================== angular JS jQuey basic css (twitter bootstrap) mobile skills ========================== Android

90% Job Success
$34.72 /hr
3,651 hours

Mykhaylo Terentyak

Mykhaylo Terentyak Agency Contractor

.Net Consultant, Architect

Ukraine - Tests: 6 - Portfolio: 25

I am founder and CEO of Blackthorn Vision company that was founded in 2008 in Lviv, Ukraine as a custom development provider specializing in development using Microsoft technologies. Our main specialization lies in desktop, web and mobile applications development using Microsoft technologies (WPF, Silverlight, ASP.NET, Xamarin, Windows Phone, WinRT). We can offer an entire package: from initial concepts to final delivery of an outsourced project of any size. Please feel free to contact me anytime to discuss your project. Skype id: mterentyak. Email: You can find more information about our team on our web site:

Groups: Application Developers Alliance

Associated with: Blackthorn Vision LLC

100% Job Success
$25.00 /hr
9,062 hours

Huang Xilong

Huang Xilong

Android and iOS Developer

China - Tests: 3 - Portfolio: 3

- 3 years of IT experience in analysis, design and development of mobile applications using Android, iPhone/iPad SDK. - Proficient with Android SDK using Eclipse IDE along with Android ADT plug in and iPhone/iPad apps with Xcode IDE. - Proficient with common Android framework APIs (Location, Camera, Notifications, Maps). - Complete understanding of iOS architecture and various versions of iPhone SDK that includes Xcode IDE, Instruments, iPhone simulator and frameworks and experience working with latest version Xcode 5 and iOS 7 . - Experience with source control tools like git and svn, source control sites like GitHub, Bitbucket. - Self-motivated software, web, and mobile developer constantly learning and growing along with several languages, frameworks, and methodologies. Thank you. Dev Huang.

75% Job Success
$18.00 /hr
1,510 hours

Guilherme felipe D.

Guilherme felipe D.

Computer Engineer

Brazil - Tests: 1 - Portfolio: 3

I'm a Computer engineer, I have 3 years of experience with Excel with multinational companies. I have a good experience with dashboards, design, data analysis and VBA. My project shall be beautiful and easy to use and understand! I'm using Upwork to finance my Master Degree in Msc of Sustainable Energy abroad.

$13.33 /hr
1,232 hours

Abhishek R.

Abhishek R. Agency Contractor

Data Scientist

India - Tests: 3

I am an Analytics Professional with rich background of analytics, modeling, model validation and reporting in domains of financial analytics, equity valuation, financial engineering, trading algorithms and credit risk analytics. I am proficient in statistical modeling in Forecasting/Predictive Analytics, Segmentation Methodologies, Regression Based Models, Hypothesis Testing, Factor Analysis/PCA, Conjoint Analysis, Scorecard Modeling, Artificial Intelligence (Neural Networks, Genetic Algorithm, etc), Optimization Techniques, Co Integration, VAR, VECM, text scoring, image processing, real time video analysis, etc. I also have a rich experience of building user friendly reports to give better visibility of business and aid Strategy & Planning. I have extensive experience in various statistical tools like R, SAS, SPSS, Matlab, Minitab, Octave, Stat. I am extremely conversant with algorithms. I am skilled in different programming laguages like C, C++, C#, Java, Python, CudaC as well as functional programming languages like F#. I am experience in Big Data analytics like Hadoop using NoSQL, Mapreduce framework, Hive and Pig scripts. I have experience in developing models using Excel VBA. I am currently pursuing CFA (Level II candidate) and FRM (Level 1 Candidate). Demonstrated Success record in:  Statistical Arbitrage in Pairs trading strategy using Co Integration, VAR, VARMA, VECM approaches  Value-Growth-Cash investing  Valuation of Structured Products  Sentiment analysis using text scoring (naive Bayes, regressive models, Machine learning and EM algorithms)  Market Efficiency analysis to identify pockets of inefficiency in emerging markets  Developing statistical models for credit risk estimation for wholesale loan portfolios  Developing models for economic capital required under Basel II norms  Develop equity and fixed income valuation models  Pricing models for products/services in Pharmaceutical sector, Energy sector, etc. ......and many others

Associated with: FinArb Analytics Consulting

95% Job Success
$44.44 /hr
2,694 hours

Muhammad Jawaid Shamshad

Muhammad Jawaid Shamshad Agency Contractor

Ecommerce Development, WordPress, OpenCart, PHP/MySQL/LAMP, MEAN

Pakistan - Tests: 23 - Portfolio: 18

For over more than a decade I have managed and developed a wide range of applications including servers, websites, and desktop applications for startup companies, small and medium sized businesses, and as well for large companies. My core competency lies in system architecture, project management, and development of new applications and systems as well existing running projects. I have experience in variety of technologies including C/C++, C#.Net, HTML5, CSS3, Javascript, PHP, ASP.Net, Perl, Tcl, MySQL, MS SQL Server, on both Linux and Microsoft Windows platforms, as well as WordPress, Google Apps Script, CodeIgnitor, WooCommerce, OpenCart and lot other ecommerce platforms.

Groups: Application Developers Alliance, BigCommerce...

Associated with: Ibexoft Solutions Agency

90% Job Success
$55.56 /hr
1,273 hours

Ives P.

Ives P. Agency Contractor

SEO, Electrical Engineer, Assembler, Visual Basic Developer

Bolivia - Tests: 5

Ives Pereyra is an Electrical Engineering Expert with over 5 years of professional experience in the Software Development field. He has supported the development and implementation of Web Based and Windows Based administrative systems. He was in charge of the software development Unit and implementation of value added tools. As an experienced Developer and expert Assembler, Ives Pereyra has the expertise to present development works and status and product reviews to Big companies' executives, perform Team Management and work within a Project Management Organization. His superior written and oral communication skills make him the ideal point of contact for lots of projects regarding Visual Basic/ Assembler. Ives Pereyra is a strong leader with excellent motivation skills and a record of delivering projects that are on schedule, on budget, and within scope requirements. Ives Pereyra has been recognized for his research efforts on his Software Unit and virtual teams at professional publications. Ives Pereyra is seeking a Developer position he can perform from anywhere in the world via the odesk virtual solution.

Associated with: Galindo Consulting Group, Inc. Agency

$16.50 /hr
1,988 hours

Apoorve Dubey

Apoorve Dubey Agency Contractor


India - Tests: 1 - Portfolio: 1

I am here to make best use of my diverse knowledge and skillsets for my clients. I have worked as a software developer for leading companies like Symantec, on the other hand, started a software company from the scratch called Kreyon Systems. I have been associated with academics and different organisations as an IT expert. My role of a mentor cum buddy has helped me to build teams and carry out projects with finesse. Founder and C.E.O of Kreyon Systems Pvt Ltd. The company started in 2009 and deals in educational erps, mobile applications and automation of business processes. He has around 6 years of experience in Software Industry & academics. Worked as the head of the department in computer science and engineering dept at S.R.I.T with success. Has worked as a technical architect and also streamlined several business processes with innovative solutions. Worked and conducted sessions on leadership and motivation for companies. Worked as an expert consultant for govt organisations like MPSEB. Author of the book "The Flight of Ambition" published by Macmillan. Master's degree from the department of computer science and engg, IIT Madras. Has closely worked with NGOs to make sustainable means of giving back to the society. My website where you can find more about me and our work:

Associated with: Kreyon Systems Agency

92% Job Success
$55.56 /hr
1,051 hours