How to Find High Quality and Affordable Programmers.

Fact: Hiring a programmer sucks; everyone has horror stories. Good, affordable programmers are rare and very often constantly booked solid.

Fact: I am a programmer and some of the tips I will give will probably cramp programmers style (ironically, including my own).

If you have ever talked to me in person about business, chances are I have at some point told you that if I was ever to create an info product it would be on just this subject. As of now I don’t have any serious plans to do so and I would rather help you folks out instead of hording the information.

Fair warning this post will not go into wear to find programmers, but instead focus on how to screen a list of canidates once you have them.

Hint: Standards.

Getting Started

Before you can seriously consider hiring a programmer you should produce some boiler plate on common things you expect from anyone you outsource from.

You should hit each of these points and write out what you expect

Some things to include are:

– Mode of commuincation (Skype, Phone, Email, etc…)

– Frequency of one way communication (how often you expect progress reports sent to you)

– Frequency of two way communication (how often you expect to have a real time conversation with your programmer)

– What form of version controll (subversion,cvs,hg,git) will they be using (if they say “my own” or “none” forget them).

– What form of replication will they use (scp or rsync over ssh are good tools)

– What tools do they use to check for correctness, tell them you prefer some automated testing if applicable (note that adding unit/system tests can raise the price of the project significantly, but if you need to be sure it works correctly, its a good idea).

– How long will they support the project (i.e. if you find a bug in week after last payment, is it covered, how about a month, what are the rates afterwords?)

Some Basics of Coding Standards

– Ask them what languages/tools they will use: PHP, MySQL, SQLite, maybe some MVC Framework, jQuery, Python, Pylons, Rails, whatever just be clear on the technologies they are going to use and be aware of the licensing issues that come with these technologies. They may change this during the course of the project, this is normal.

– Tell them that you expect documented object orientated code, with unobtrusive javascript (if applicable) and a responsible separation of logic and presentation (i.e. there should not be a lot of code inside of the HTML if possible).

– If you are doing anything with a database specify that they must use “transactions” with PREPARED STATEMENTS. If its a PHP project tell them you expect them to use the PDO class with prepaired statements. And if its Python, be happy if they say they will be using sqlalchemy.

– If they are doing any HTML from scratch (i.e. not extending an existing script/site) you expect them to do it in “HTML 4.01 Transitional” if they argue with you that XHTML Strict is somehow better, tell them not unless they have a time machine to the year 2007 and the power to change history.

– Tell them you expect a cron job to dump the database to a secure location on the server which is password protected so that you can download/backup the database from your browser (unless, of course, you use phpmyadmin or something similar).

– Login Passwords must be one-way encrypted/hashed in the database.

Going over the Specs

SUPER IMPORTANT: Make sure your prospective programmer is willing to go over the specs that you have thoughtfully and thoroughly written out BEFORE you put down a deposit. Avoid people who say “i completely understand your specs (no one does) and i can get this to you by your deadline.” This is bad.

Often They will then put either a highball or a low ball price for a
quote.

Instead tell them you expect them to go over the specs with you and ask you any questions before you get started (they may charge a little for this, but its worth it).

SPECS CHANGE, understand that sometimes this will be your fault, sometimes it will be the coders. If you add new features expect to pay more, possibly a lot more even if you think it should just be a few lines of code. You don’t know the architecture of the site so you don’t know what will needed to be done.

Fast or Clean?

The speed of the site both in terms of load time and how fast you get the site/app up has to be balanced with how fault tolerant (dealing with corner cases and bad input) and maintainable the site is.

Choose speed if you are running something that needs to be real-time.

Fault Tolerance/Clean Code if the data is important and/or you think the application will have a long life cycle or be getting new features in the future.

Are They Getting the Job Done?

After you have given your deposit (I do %25 to start, %50 at beta, %25 at completion) you need to know that they are actually working on the site.

One approach to doing this is to ask them to show you snapshots often, i actually think this is kind of tricky because often its better to code a nice strong foundation first and then get the front on the site on the end. By asking them to show you partial functionality you may very well be hurting the coding process.

If you do ask for snapshots or even if you don’t still REQUIRE FREQUENT COMMIT COMMENT LOGS aka revision logs. All of the version control tools work by “commiting” a snapshot of code to a project code “database.” When you commit you can comment on what has been done.

The version control (svn/git/hg/etc…) tool can spit out a history of changes and they can email this to you along with any other little notes they might have. This should only take them 5 minutes and will show you that they are actually working and how much they are getting done. If it takes them longer they are doing something wrong.

As an example, in svn to get the commit log you would do:

svn log

This would give something like:

svn log

----------------------------------------------
r3 | Coder Name | (Fri, 12 Mar 2010) | 2 lines
 
middlewear fix
added the foo template
 
----------------------------------------------
r2 | Coder Name | (Thu, 11 Mar 2010) | 2 lines
 
First commit with tables Now the bar function works, 
but need to santatize the baz script
 
---------------------------------------------
r1 | Coder Name | (Wed, 10 Mar 2010) | 1 line
 
initial import dfhu.org script
---------------------------------------------

Similarly you might ask for a code word count dump.

The shell script one liner is

find . -name "*.py" | while read ln; do wc $ln ; done

And will give something like:

Line Counts

17   40   448   ./projectname/controllers/login.py
46   144  1630  ./projectname/controllers/error.py
14   32   409   ./projectname/lib/validate.py
264  568  7492  ./projectname/lib/form.py

Where the numbers are represent Lines, Words and Characters per file respectively.

Also as for the results of apache’s `ab` benchmarking as well, to get an idea of how fast the site is. The number of requests -n and the number of concurrent requests -c depends on how much traffic you expect.

ab -n 250 -c20 http://thesite.faux

This will give something like:

Ab Testing

Total transferred:      160660 bytes
HTML transferred:       155180 bytes
Requests per second:    17.12 [#/sec] (mean)
Time per request:       584.071 [ms] (mean)
Time per request:       58.407 [ms] (mean, ...  requests)
Transfer rate:          134.31 [Kbytes/sec] received
 
Connection Times (ms)
              min  mean[+/-sd] median   max
Connect:        0    7   9.0      1      21
Processing:    89  561 435.0    919    1078
Waiting:       71  545 432.6    901    1071
Total:         89  568 442.5    937    1099
 
Percentage of the requests served within a certain time (ms)
  50%    937
  66%    966
  75%    973
  80%    987
  90%   1074
  95%   1099
  98%   1099
  99%   1099
 100%   1099 (longest request)

TL;DR

– Agree on frequency and type of communication

– Have basic coding standards (OOP, Prepared SQL statements, sepration of logic and presentation)

– Require version control logs emailed to you a couple times a week or however often.

Please rate this post and coders feel free to bash me in the comments.

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