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Last updated: October 1, 2015

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Eugene H.

Eugene H. Agency Contractor

Expert Ruby/Rails Developer / Team Lead

Russia - Tests: 3

I'm software architect with specialization on ruby on rails. My responsibilities are: 1. ensure that all requirements taken into account. 2. ensure that chosen workflow is optimal in the current circumstances 3. ensure that the team uses right tools Also, I can assist your team with urgent refactoring n a case if your project is in critical state.​

Groups: Engine Yard Ruby on Rails Professionals Network

Associated with: Aurora

$80.00 /hr
1,150 hours

Jonathan C.

Jonathan C.


United Kingdom - Tests: 1

I have a UK university PhD, in Artificial Intelligence, and the business management skills to match, together With 15 years of Delphi, C++, Java, SQL, and Object-oriented analysis and design experience. I specialise in development including protocol specification, thread management, distributed communication and database transaction management. I have retro-fitted software in tasks ranging from installing improved modules to sophisticated Artificial Intelligence sub-systems. I can provide the often essential empathy with the contract holders, and the pragmatics to satisfy the demands of management. I have 20 years of competency in the software industry, and have a proven track record that will guarantee the successful realisation of your system requirements. I have designed and implemented systems used by multi-billion turnover corporations around the world, saving millions of pounds savings per year. My scope in system design and development ranges from individual utilities and embedded operating systems, through to large-scale corporation-wide distributed architectures. I am also able to provide a code debugging and fixing service, either onsite or online. I can give workshops and can facilitate training of new software developers, both in-house and online. I have managed my own team and maintained their skills matrices, ensuring training has been current. I have defined and managed new product releases and have written instruction manuals for new and "super" users at the customer end of the project.

100% Job Success
$105.56 /hr
2,850 hours

Jamis Johnson

Jamis Johnson

Data Scientist and Software Engineer

United States - Portfolio: 1

Specializes in Deep Learning, Computer Vision, Recommender Systems, and other areas of Machine Learning. 4+ years of professional, full-stack software engineering experience. A graduate of Columbia University with degrees in applied mathematics and computer science. Extensive experience with Python, JavaScript, and R, and understanding of 12+ programming languages, 6+ backend API and frontend web frameworks, both relational and NoSQL databases, and has created 3 iOS apps. A harmonious combination of professional programmer and mathematician.

$50.00 /hr
0 hours

Dr mustansar ali G.

Dr mustansar ali G.

PhD in Machine Learning, Uni of Southampton, UK

Pakistan - Tests: 1

I hold MSc & PhD from Uni of Southampton UK and I am Gold Medalist of UET Pak. =====AN INTERNATIONALLY RECOGNISED NAME===== Please Google with my name "Dr Mustansar Ali Ghazanfar" and analyse the impact of my research & development internationally. =====EXPERIENCE===== I joined Brandwatch UK in Spring 2012. I worked as a Java software engineer from 2012 to onwards. I obtained a Ph.D of Computer Science from University of Southampton, UK, with major in Machine Learning and minors in Artificial Intelligence and Data Mining. I have been awarded best student paper award from IADIS European conference on data mining 2011. I am interested in developing efficient algorithms and machine learning techniques to solve real world problems. I am in particularly interested in problems on prediction, recommender systems, data mining, and information retrieval. I had worked as consultant for many start-ups (e.g. on various projects related to prediction.

70% Job Success
$33.00 /hr
109 hours

Anatoliy K.

Anatoliy K. Agency Contractor

Computer Vision and Machine Learning Expert

United States - Tests: 1

I have 10 years of experience developing algorithms in computer vision, and another year working in other areas of machine learning, including NLP, recommendation systems, and click fraud detection. I am passionate about building AI systems that replicate more and more of human intelligence. My main strength is algorithm design. In addition, I have five years experience developing in Python, including 2 years doing backend development in Django.

Associated with: Anatoliy Kats

$85.00 /hr
0 hours

Hossein Kazemi

Hossein Kazemi

Backend Developer-Architect


I have extensive experience in creating highly scalable systems with Java and Scala and related technologies as well as great developing Natural Language Processing and Machine Learning algorithms and software (Worked on projects for government projects and also in the entertainment area). I also have experience working with Python for NLP and Machine Learning research and Ruby on Rails for fast web prototyping. Quality, Transparency and Honesty is my working framework. I am comfortable working with cloud such as Amazon's AWS. Key Technologies: Play Framework 2, Spring Framework,J2EE, Java/Scala, Python, PostgreSql,MySql, Redis, ActiveMQ, Akka,...

$40.00 /hr
12 hours

Darko K.

Darko K.

Full Stack Python Developer

Macedonia - Tests: 4 - Portfolio: 3

I am a Full Stack Python developer with 2.5 years of experience specializing in Django, Flask, AngularJs and JavaScript. I enjoy helping Entrepreneurs implement their ideas and change the world. I thrive when a difficult problem arises. I am a team player who is happy to contribute in all stages of the project: Requirements Engineering, Architecture Design, Development, Deployment and Support. When writing Python I follow the PEP 8 standard and also the good coding principles outlined in the books: Pragmatic Programmer and Code Complete. I offer you all of the skills bellow: Python Frameworks/Libraries: Django, Flask, Srapy, Scikit-learn, NLTK, Gensim, BeautifulSoup, Natural Language Processing, Machine Learning and Advanced Algorithms. Front End skills: AngularJS, jQuery, Ajax, JavaScript, HTML5, CSS3, jQueryUI, yeoman, grunt. Databases: MySQL, IBM DB2, PostgreSQL, MongoDB Deployment and Server Administration: Ubuntu 12.04 - 14.04, DigitalOcean, Heroku, Cent OS 5+ Experience: - 1 year working in a continuous delivery environment, deploying code to production frequently, on a web application used in the Medicine Industry. - 2 year working in a outsourcing company building various web apps. - 4 years of college in the Faculty of Computer Science and Engineering in Skopje, Macedonia. I graduated as one of the best students in my class with a GPA of 9.5/10. Projects I'm proud of: (you can check them out on my github profile) - Real time web application (realtime chat, status update, etc.) - Clustering Twitter users based on data mining and artificial intelligence algorithms. - Social blogging application with multiple users. I am committed to making sure you have a good experience with me and UpWork as a whole. Nobody likes to get cheated or strung along. Honest and hard work is my moto, and if you treat people with respect, I'd very much like to help you on whatever journey you are on. less Personal blog: Personal email: Github account:

$12.00 /hr
5 hours

Geoffrey Clark

Geoffrey Clark

Data Scientist

United States

Data Mining & Machine Learning Broad experience building recommender systems including user and item-based collaborative filtering, latent factor models and binary response measures. Deep experience mining association rules from transaction data for actionable insight. Expert in analyzing and visualizing sequence analysis in customer purchase histories. Quantitative Analysis Expert in developing and implementing scale-able customer profitability analytics--especially in complex industrial/commercial service business models. Visualization Proficient in shiny application development in R. Particularly skilled at visualization of complex data through network graphs, Sankey diagrams, and faceted plots.

$100.00 /hr
0 hours