Top Upwork Freelancers

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  1. Aldrin L.

    Aldrin L.

    Architect, Backend Engineer (Scala, Java, Hadoop)

    Brazil - Last active: 17 days ago - Tests: 12 - Portfolio: 1

    Over the past 15 years I've worked with projects ranging from Startups to Fortune 100s. From C++ to Scala, past assignments involved: - Protocol Design in C++/Delphi - Java API Publishing - Maven Plugin Development - Distributed Systems using RESTful backends - Scala / Akka Design - Jenkins Plugins Writing On a daily basis, I spend between Systems Architecture, Build Planning, for Hadoop and Restful Backends, specially under Amazon Web Services. Oh, I'm also a Cloudera Certified Administrator and Developer. Favorite platforms include Scala, Python and General Java. See my full profile for more descriptions and feel free to browse my github and bitbucket profiles at the addresses below: http://github.com/ingenieux http://bitbucket.org/aldrinleal Favourite customers involve pragmatic teams, with contant online presence, and direct involvement with the end customer, and a problem involving legacy and the next generation Feel free to discuss our next project - I'm always looking for the next challenge!

    Groups: LoginRadius, Microsoft Certified Professionals

    $55.56 /hr
    3,109 hours
    4.83
  2. George Saliba

    George Saliba

    Electronics Design Engineer / Programmer

    Malta - Last active: 1 day ago - Tests: 9

    Fully qualified electronics design engineer with over 10 years experience in the design of electronic systems. I have experience in various area of electronic design including: embedded systems, analog circuits, high power switching controls, low power battery operated devices, wireless designs, microcontroller (AVR, ARM, PIC...) systems and design of high performance processor systems running embedded Linux. My primary EDA is Altium Designer.

    $40.00 /hr
    7,151 hours
    5.00
  3. Juan Luis Herrera Cortijo

    Juan Luis Herrera Cortijo

    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.

    $44.44 /hr
    400 hours
    5.00
  4. Ovi I.

    Ovi I.

    Highly Experienced Developer

    Austria - Last active: 4 days ago - Tests: 29 - Portfolio: 6

    > WHO IS THIS GUY? < 27 years old passionate developer, with more than 8 years experience in web development. > WHAT CAN I GET FROM HIM? < You will always get high quality work from me if we work together, no excuses. - consultancy - coding frontend UI - developing custom backend - complete solutions based on Drupal, Wordpress or custom platform - web apps (AngularJS) - fixing bugs - performance optimization - server administration (LAMP, Amazon Web Services) - all sort of scripts (web scrapers, data analysis/conversion etc.) - other custom coding (I accept challenges!) > WHY DOES HE DO THIS? < I am passionate about what I do and I feel this is helping me learn and grasp the new trends in the web industry much faster compared to others that just 'do their job'. I take pride in what I do and don't accept compromises when it comes to high quality work. > NEED MORE INFO! < Feel free to contact me regarding any question you might have. I usually respond within 24 hours or less.

    $44.44 /hr
    858 hours
    4.99
  5. Martyn Shuttleworth

    Martyn Shuttleworth

    Experienced technical and academic writer. Native English speaker.

    Greece - Last active: 3 days ago - Tests: 8 - Portfolio: 18

    As a graduate with many years experience of writing and proof-reading academic papers, I am familiar with all major citation practices. I am able to write papers for most subjects, from philosophy to physics. Without complaint, I adapt to any topic and style of writing, and I am thorough in my research. I firmly believe in going the extra mile required for completing the task to a high standard. As a perfectionist, I never compromise upon quality, whatever the size of the task.

    $33.33 /hr
    52 hours
    4.97
  6. Alex ST

    Alex ST

    20-y experience, Professional & Topnotch Services

    Indonesia - Last active: 27 days ago - Tests: 1

    My profound experience in language skill for seventeen years, particularly in English>Indonesian vv pairs, I believe will suit with any translation services. My clients come from local and international companies. In these last six months I have dealt with more than 20 international clients, which are willingly content to work again with me for future projects. My translation specialties are advertising and public relation, medical and health care, computer and softwares, business, banking and marketing, E-commerce, IT and engineering, hotel and hospitality services, tourism and lifestyle fields. I have translated various patent documents, for instance automotive and car tire control, scientific chemical products such as chemicals for high-tech textile product, medical chemistry (pharmaceuticals and medical interventions), etc. As well, I have experiences in copy writing project, promotional marketing and advertising purposes, transcription, DTP, localization, pedagogy, subtitling, voice over/dubbing. Proofreading is one of my best services. One and the main of my CAT tools is SDL Studio Trados 2011.

    Groups: Certified Translation Professionals, oTranslators

    $38.89 /hr
    113 hours
    5.00
  7. Oleg Rakhmatulin

    Oleg Rakhmatulin

    C# Software Development Expert

    Germany - Last active: 1 day ago - Tests: 10 - Portfolio: 4

    I am an advanced C# developer with 10 years of production-ready software development and 25 years of experience in programming and computer science. I specialized in .NET Framework development and primary on developing desktop application development, real-time financial data processing and performance optimization projects. Also I have experience in C++ and Java interoperability with .NET stack solutions.

    $30.00 /hr
    578 hours
    4.96
  8. Andrew Hessel

    Andrew Hessel

    wordsmith

    United States - Last active: 1 day ago - Tests: 3 - Portfolio: 1

    I'm a gifted storyteller, dedicated to helping clients tell theirs. I say this unabashedly and with complete confidence. The proof, of course, is the words. Today, finding the right words is more important than ever, and I strive to under-promise but over-deliver. The name of my company says it all: words-are-my-biz And my philosophy is simple: The right words sell. The wrong words leave sales on the table. WHO AM I? I’m a professional writer living in Portland, Oregon with a lifelong passion for the power of the written word. I’ve written everything from novels to blogs, sales collateral to web content, ad copy to letters, business proposals to sales plans and training manuals. Not to mention a few thousand papers getting my four kids through high school and college. I love what I do. WHAT IS MY BACKGROUND? I bring more than thirty years of sales and marketing business management experience to every project, and by this I’m talking about major corporations to mid-size companies and start-ups, working in fields including software, real estate, law, publishing, advertising and services. I confess to having a particular fondness for high degree-of-difficulty challenges. JUST HOW DO I DO WHAT I DO? By asking questions, listening and considering what I hear, followed by collaborative brainstorming to develop a plan we both embrace with confidence and enthusiasm. As you seek synergy within your organization, I seek it with my clients. It pays huge dividends. The common thread is in finding the way to communicate more effectively, internally and externally, with staff, customers and prospects. The common challenge is in identifying the strengths, weaknesses, opportunities and unique competitive factors confronting each client. HOW CAN YOU LEARN MORE ABOUT ME? Visit my website, home to my novels, blog and publishing company, Old Dog Publishing.

    $95.00 /hr
    714 hours
    4.98
  9. Jon S.

    Jon S.

    Video and audio production.

    United States - Last active: 1 day ago - Tests: 3 - Portfolio: 13

    Hi, I'm Jon Simpson - thank you for visiting my profile. I am a multi-media artist and producer that specializes in creating across a broad range of visual, audio and conceptual contexts. Since earliest memory I have been very diversely creative and I am now utilizing a wide array of professional design tools that channel that ever-expanding experience within the digital realm. As a "generalist" artist I seek to master and stay current with each software tool, not merely to maintain cutting edge capability, but also to maximize and expand the creative options available to myself and my clients. My primary video/2D animation software is Adobe After Effects (5 years), which is now integrated with and partnering with Maxon's Cinema 4D, my 3D software. I am currently ranked in the top 20 out of more than 6,000 on the oDesk After Effects skills test, and in the top 2 percentile on the basic English skills test. For audio, I have been producing in Adobe Audition for over 10 years, everything from music composition (5 instruments across diverse genres, including full symphonic orchestration), to managing multi-language voice overs, world-class singers, genuine foley sound effects, podcasts, instructional courses, children's stories and more: http://www.reverbnation.com/AvalonStudios I also have more than 7 years of experience in Photoshop and Flash and over 3 years with Illustrator, Camtasia and Cinema 4D. Educationally, I have a Bachelor's degree in philosophy from the University of North Florida with subsequently highly developed critical writing skills, able to help you with scripts, articles, copy, editing and much more. I am in the -5 GMT time zone but as I am willing to accommodate any time zone and schedule, my availability is very flexible and generous. Contract-wise, I enjoy doing various kinds of projects but I am also interested in developing long-term relationships in more specific contexts with individuals and organizations I resonate with. Please enjoy examples of my work in my oDesk portfolio, read client reviews, and feel free to contact me, even if you just have questions and want to explore possibilities. I look forward to the opportunity of creating with you! Jon

    $38.89 /hr
    1,163 hours
    4.95
  10. Shannon S.

    Shannon S.

    Writing, Marketing, Humor and Medical Info

    United States - Last active: 3 days ago - Tests: 5 - Portfolio: 4

    I am an academic librarian and a freelance publicist, writer and social media marketer. Press release writing and distribution Special events Product launches Academic research Article indexing Social media marketing planning Social media content writing/ SEO optimization Blog dev/ CMS / Wordpress Marketing collateral - brochures, media kits, branding My subject ares of expertise range VASTLY. I have experience writing about sports, music, information science, technology and medicine. Visit my website, shannondawnpr.com to learn more about me and what I can do for your company.

    $36.00 /hr
    53 hours
    5.00