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Clojure Upwork freelancers typically receive a client rating of 4.53.

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Last updated: August 1, 2015

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  1. Dan Midwood

    Dan Midwood

    FP Developer / Mentor

    United Kingdom - Tests: 2

    I'm an expert in Clojure and Scala functional programming, and scalable systems. My greater background is in Java development and I have sufficient knowledge of Javascript and web front end programming to be productive. I'm well versed in all stages of application development, from the early planning and pre-planning days on to post release. I'm a big fan of agile and the devops movement, and I love to work in great cross-discipline teams. I've been remote contracting for over a year now, I'm a great communicator and familiar with a wide range of remote collaboration tools. Before this I was an employee at Mind Candy, an entertainment startup based in London, where I was working on Scala and Java development, at first on the Moshi Monsters game and then later leading back end development on the Moshling Rescue mobile and Facebook game. Both titles required efficient, well designed code able to scale to many concurrent users and easily handle times of peak load. Throughout my time at Mind Candy I also acted as a mentor to other members of staff that were coming newly to Scala from a Java background, helping to ease their transition and become fully adept at writing idiomatic functional Scala code. As well as development I've been involved heavily in "developer multiplier" tasks, through such things as adding continuous integration servers, building a deployment pipeline, adding code metrics and other, more manual, things such as code reviews. I'm a big fan of sharing information, presenting what I'm working on and interested in and hearing about the same from others. I can help you with development, system design, choosing a database (SQL and NoSQL) and designing data types, scaling systems, migrating from Java to Clojure or Scala, improving your tooling and build chain, and more. I'm available for long term engagement, or for shorter projects. To find out more about me and my experiences, please check out my resume, personal website, portfolio and GitHub all linked to below. http://danmidwood.com http://resume.danmidwood.com http://portfolio.danmidwood.com http://github.com/danmidwood

    $110.00 /hr
    614 hours
    5.00
  2. Michael Ravits

    Michael Ravits

    Full-Stack Software Engineer

    Israel - Tests: 2 - Portfolio: 1

    I am a Full Stack Developer with over 9 years of experience in the industry, working both on Web as well as native applications. While I excel at working with a team, having experienced managing a remote group of developers, I am also capable of single-handedly delivering projects from start to finish. With my skills and experience, I always strive to produce clean, robust and highly tested code for every project. Having a very broad experience with numerous tools/languages and technologies, I specialize in building modern web applications and high-scale data processing pipelines. My language of choice is Clojure. Some of the technologies I've worked with in recent projects: - Server side development on the JVM * Clojure * Cassandra * ElasticSearch * Java * Kafka * Redis * Samza * Spark * Storm - Large and small client side applications in ClojureScript * Om * Reagent * ReactJS As a technology enthusiast I enjoy utilizing these cutting-edge tools to deliver projects quickly and efficiently.

    $79.77 /hr
    856 hours
    5.00
  3. Eudis Duran

    Eudis Duran

    Python/Javascript/ReactJS/NodeJS/Django/Clojure/Backbone

    United States - Tests: 6

    I am fluent mostly in Javascript/ReactJS, Python, NodeJS/MongoDB and various front end libraries; namely jQuery, RequireJS, Underscore and Backbone, to name a few. Currently, I am looking for small contract jobs, ranging from a day to a week at most, as I have a full time position as a Web Developer and cannot commit any more than that. I have 5 years of professional experience, ranging from MySQL + PHP, Javascript Front End, Python/Django, NodeJS/MongoDB to C# + MSQL. 10+ years working with Javascript. 6+ years working with Python and 10+ years of general programming experience.

    $40.00 /hr
    116 hours
    5.00
  4. Aleksandr Pantiukhov

    Aleksandr Pantiukhov

    Java SE and Android Developer

    Russia - Tests: 1 - Portfolio: 3

    Hello, my name is Aleksandr Pantiukhov. I am a Java/Android/Clojure/whatever-is-needed software engineer with big experience in developing big and awesome mobile applications, web applications for mobile and desktop, developing UI and creating web servers for your mobile applications (using Java, Clojure and Ruby on Rails). My number #1 goal is to meet your needs and deadline. When working on a new project, I like to speak with the client, so that I can have a clear understanding of his/her needs and vision of the project. I'm honest and fair. I have my personal website with some works and information about me: http://alwx.me Since 2011 I've created a bunch of different Android applications for different comanies (mostly in Russia). But I am also good in web development and here's a grap-bag of interesting things I've done: 1) I came 1st in Clojure Cup 2013 (not alone but with my teammates); 2) I, as a part of small team, created a small, but useful service called CodeNotes (http://codenotes.me/), that may be interesting for developers who don’t need such monster as, for example, JIRA to control issues. And I've used such a nice language as Clojure to build it; 3) I've read some Android and Clojure courses for my colleagues; 4) I’m the first developer who have created a game for Google Chromecast device (with Android integration); 5) … and I also created my own restaurant that participated at Restaurant Day in Saint Petersburg, Russia (it is not a fact about my programming experience, I know, but I think it is interesting enough). I have a Bachelor's degree in Software Engineering from Saint-Petersburg State Technical University. I've listed my experience and skills below: — Android (2.x & 4.x): Fragments API, Location and Sensors API, SQLite, UI, Services, Google Play Services, Action Bar Sherlock, Parse.com, admob, etc; — Java SE: Java Core, Multithreading, Collections API, Functional programming in Java 8, etc; — Clojure: core, core.async, clojure-android; Clojure for Web, ClojureScript; — Frameworks: Eclipse RCP, JUnit; — Core web: XML, JSON, HTML/CSS, JavaScript; — Ruby on Rails (including a whole bunch of libraries), Core Ruby; — IDE: IntelliJ IDEA, Android Studio, Eclipse; — OS: Mac OS X, Linux; — VCS: Git, Mercurial, SVN; — Bug/Issue trackers: Jira, YouTrack, Redmine; — SQL, MongoDB, Datomic.

    $22.22 /hr
    370 hours
    0.00
  5. Marek Lipert

    Marek Lipert

    Senior iOS Engineer - Swift / Objective C Programmer

    Poland - Tests: 5 - Portfolio: 5

    "Most good programmers do programming not because they expect to get paid or get adulation by the public, but because it is fun to program." - Linus Torvalds I try to understand the problems before they are stated. I try to turn you back from abyss, if you only let me do it. I believe that communication is a key to success. I posess 10 years of software development experinece (4 years in iOS) and have prepared many beautiful apps durning that time (see my portfolio). As a former scientist I put enormous pressure on my apps so that they are bug-free and correct. I augment my skills with techniques borrowed from functional languages (clojure, lisp, haskel) to produce safer and less error-prone programs. I excel at fast development of bug free apps, totally focusing on the task at hand. I am communicative, open minded and creative. I have an experience with core iOS technologies, including (but not limited to): - Apple Watch Apps - UIKit for creating cool looks - Core Animation for animating it smoothly - Media manipulation - CoreAudio, CoreVideo, AVFoundation, CoreGraphics - Core Data and its integration with various cloud solutions - REST / SOAP integration - gps / custom maps - Bluetooth communication - OpenGLes - StoreKit - Push notifications - iBeacons (I have worked with Estimote beacons). I have also worked with some serious 3rd party libraries and services: - Social sites - Facebook, Twitter, Pinterest, Tumblr, Google+,LinkedIn - Cocos2d, Box2D for game programming - UDK (Unreal Development Kit) for 3D games - Credit card reader device libraries for credit card payment support - e-Commerce payment system - Paypal, Authorize.net, Stripe, Saleforce, card.io - Bugsnag and Crashlytics bug reporting systems - Parse for quick construction of simple backends. - AsyncDisplayKit for increasing performance of complex applications I have experience working with JIRA, Pivotal Tracker and Trello. I use git as a version control system. I own some iPhones (ip6, ip5s), Apple Watch and an iPad. I take good care of application looks on all required screen sizes and device orientations. I am looking forward to lead the development of interesting and challenging projects.

    $30.00 /hr
    0 hours
    0.00
  6. Martin U.

    Martin U.

    Expert Ruby on Rails Developer

    Poland - Tests: 12 - Portfolio: 9

    If you're looking for the cheapest - someone who'll cut corners to save a few minutes' work - you'd better look elsewhere. Types of systems I've been working on (most were covered by NDAs): - ERP systems (for a production line in a factory) - advertising platforms (using AdWords and AdSense) - banking systems ( I learned a lot about accountancy, security and encryption) - MLM platforms - social networks - meta-data distribution platforms - gamification platforms

    Groups: Engine Yard Ruby on Rails Professionals Network

    $100.00 /hr
    6,487 hours
    4.97
  7. Michael R.

    Michael R. Agency Contractor

    Full Stack Software Developer and Data Analyst

    United States - Tests: 1

    I've developed software for all levels of a Web Application. I have experience writing RESTful APIs and business logic with Python, Java, Clojure, and Ruby, building front end interfaces using Webkit and jquery, as well as LessCSS, ClojureScript Om, and React.js, operations scripting in bash, python, and the unix toolchain, and making sense of large data sets using SQL, python, and Webkit as a Data Analyst. In more detail (most recent work first): As a Freelance Full Stack Developer: • Worked with www.datafly.net to build www.iepro.com using Bottle.py, MongoDB, Jinja, Less, and Webkit As a Data Analyst: • Categorized millions of unlabeled records with PostgreSQL functions and modules • Scraped large and varying third party data sets and synthesized it with internal data • Visualized user activity across the US with PostGIS, Python, leaflet.js, and Nominatum • Analyzed potential client data, providing market and profit analysis for data-driven sales • Managed and reported on financial data for 20+ banks and 3,000+ merchants • Implemented PCI compliant ETL systems for sensitive, non-standardized client data As an Operations Engineer: • Responsible for data integrity and ETL testing with SQL, Bash, and Java Benerator • Implemented data reporting and visualization tools with SQL, Python, and Javascript D3 • Sanitized and enriched raw text data using Apache Camel, Elasticsearch, and Factual • Ad Hoc SQL Reporting and data fixes • Managed the deployment of the BuzzPoints application with SaltStack As a Java Web Developer: • Automated browser testing with Java Selenium • Implemented the web interface and business logic for BuzzPoints application features • Architected a modular admin portal from scratch with Java and web technologies

    Associated with: MangoChomp

    $66.00 /hr
    103 hours
    5.00
  8. Peter Fisk

    Peter Fisk

    Full Stack Web Developer and Project Manager

    Canada - Tests: 1 - Portfolio: 7

    I am a full stack developer who has been professionally building web applications since 1997. Currently I manage Ruby-on-Rails projects with remote teams from around the world. My server-side experience includes: -- Ruby-on-Rails -- Clojure -- CodeIgniter -- Postgres, MySql, and Cloudant databases -- Redis -- Stripe payment processing -- MangoPay payment processing And my client-side experience includes: -- Twitter Bootstrap 3.x -- ExtJs 4.x -- Sencha Touch -- Sencha Architect (licensed owner) -- backbone.js -- jQuery Most of my IT career has been working on large teams which has provided me with a very structured and task-directed work ethic. I greatly enjoy working with other developers on challenging assignments. -- Peter Fisk

    $44.44 /hr
    893 hours
    3.95
  9. Stanislav Yurin

    Stanislav Yurin

    Clojure, Java developer, Data analysis

    Ukraine - Tests: 1

    I am the professional Clojure developer, with 14 years of development experience overall and 3 years of exclusive Clojure/ClojureScript. I have an experience of building full-stack applications using Clojure, Datomic, various NoSQL and KV-storage platforms (DynamoDB, Redis, Cassandra, Orient, MongoDB), different flavours of relational SQL databases, from sqlite to Redshift; messaging and queue services, RabbitMQ being the favourite; data processing with Hadoop (PigPen, Cascalog etc). Running all of these deeply integrated to Amazon Web Services as well as on custom and bare metal deployments. I also have some solid exposure to ClojureScript GUI development, particularly using Om. Stanislav.

    $38.89 /hr
    464 hours
    5.00