Development of drupal modules. I have made drupal modules for 6.x and 7.x drupal core. I started work with drupal since drupal 5 (about 7 years ago). Examples: ✔ Maintenance Countdown → https://www.drupal.org/project/mcd ✔ Upload default avatar (user picture) → https://www.drupal.org/project/upload_default_avatar ✔ Wrong Captcha Counter Block → https://www.drupal.org/project/captcha_counter