Mark Blackwell
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Mark Blackwell

Rails developer

$39.99/hr

Baltimore, United States

Overview

Developed wide range of websites in Ruby on Rails for startup companies & artists. Core competence: complete end-to-end management of new website development projects./Seek to build website from ground up for your business./Experience: Amazon & Heroku cloud services, HMTL, CSS (Sass), TDD, Bash, Git, & Linux (Debian), OOP, PostgreSQL, MySQL./Hardworking, fast learner, excellent written communication skills & strong programming background./Some: Android SDK, Ajax, AMQP, Assembler, C, client/server applications, cPanel, Haskell, Javascript, LilyPond, Photoshop, SQL, SVN, WordPress.

Mark Blackwell has added 4 portfolio pieces. Create an account to review them.

Work History and Feedback

  • Dec 2013 - Mar 2014

    PDF generation ( batch application in Unix)
    2.95
    Mark has very strong communication skills but his technical skills didn't satisfy us. Project was delivered later than planned and only the part of scope was delivered. Mark tried to log everything, starting from bug fixing to answering emails(!!!). We lost enormous time on rework (due to low quality work). Final project budget was exceeded the original estimate approximately 3 times...
    150 hours
    $25.99 / hr
    $3,889.85 earned

  • Jan 2013 - May 2013

    Active Merchant Support

    No feedback given

    26 hours
    $20.00 / hr
    $520.00 earned

  • Dec 2012 - Jan 2013

    RoR Junior Engineer
    3.55
    Mark did a good job, I increased his rate so we started a new contract and I leave him a feedback.
    33 hours
    $3.99 / hr
    $133.00 earned

  • Dec 2012 - Jan 2013

    MySql Programmer on Ruby Rails
    4.80
    31 hours
    $9.99 / hr
    $311.39 earned

Mark Blackwell has more jobs to show. Create an account to review them.

Tests

Name Score (out of 5) Time to Complete
English Spelling Test (U.S. Version) 5.00 1st Place! 9 mins
English Spelling Test (UK Version) 5.00 1st Place! 8 mins
PC Graphics Test 4.50 Top 10% 37 mins
Firewall Concepts Test 4.25 Top 10% 25 mins
UK English Proofreading Skills Test (Oxford Guide to Style) 4.10 Top 10% 32 mins
PostgreSql 8.1.3 Test 3.40 Top 30% 40 mins
Market Research Test 4.10 Top 10% 36 mins
RUBY Programming Skills Test (Hands-on programming skills) 4.00 Top 30% 137 mins
PostgreSQL Test 2.60 Top 30% 30 mins
Data Warehousing Test 4.00 Top 10% 32 mins
Business Strategy Test 4.40 Top 10% 31 mins
U.S. English Proofreading Skills Test (Chicago) 3.90 Top 10% 31 mins
UK English Grammar Test (For Writing Professionals) 3.75 Top 10% 33 mins
U.S. Public Speaking Test 3.40 Top 10% 26 mins
Marketing Methods and Techniques Test 4.40 Top 10% 19 mins
Corporate Strategy Test 3.50 Top 20% 34 mins
System Analysis Test 3.00 Top 20% 23 mins
U.S. Academic Writing Test 4.40 Top 10% 31 mins
UK English Basic Skills Test 4.75 Top 10% 16 mins
Creative Writing Test - Fiction (U.S. Version) 4.50 Top 10% 14 mins
Content Writing Skills Test 3.90 Top 10% 28 mins
Report Writing Test 3.90 Top 30% 26 mins
Resume Writing Skills Test 4.00 Top 10% 20 mins
Technical Writing Skills Certification 4.00 Top 10% 35 mins
Ruby on Rails 2.3 Test 3.25 Above Average 37 mins
U.S. English Sentence Structure Test (For Writing Professionals) 3.75 Top 20% 32 mins
Software Testing Test 3.75 Top 10% 28 mins
Marketing Terminology Test 3.00 Top 20% 17 mins
Advertising Skills Certification 3.40 Top 20% 14 mins
Negotiations Skills Test 4.25 Top 20% 16 mins
Management Skills Test 3.75 Top 10% 36 mins
Ruby on Rails Test v1 (Old) 3.60 Above Average 38 mins
English Vocabulary Test (UK Version) 4.60 Top 20% 11 mins
DHTML Test 3.60 Top 30% 40 mins
HTML 5 Test 3.90 Top 30% 37 mins
Creative Writing Test - Non-fiction (U.S. Version) 4.40 Top 20% 13 mins
U.S. English Punctuation and Mechanics Test 3.90 Top 30% 16 mins
JavaScript 1.3 Test 3.75 Top 30% 35 mins
Business Plans Test 4.40 Above Average 14 mins
Data Interpretation Test 2.85 Above Average 35 mins
Internet Marketing Test 4.50 Top 10% 16 mins
HTML 4.01 Test 4.10 Top 10% 35 mins
MySQL 5.0 Test 3.60 Top 30% 40 mins
CSS 2.0 Test 4.00 Top 20% 33 mins
U.S. Word Usage Test 4.10 Top 20% 16 mins
English Vocabulary Test (U.S. Version) 4.75 Top 10% 9 mins
Search Engine Optimization Test 3.25 Top 20% 39 mins
Social Media Marketing Test 4.10 Above Average 15 mins
U.S. English Basic Skills Test 4.50 Top 10% 23 mins

Work History

78% Job Success
606 hours worked
9 jobs

Availability

Not available

Verifications

Phone Number: Verified

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