Job opening

Junior Software Developer (Web Security)

We're looking for a Junior Software Developer for a full-time position to help us make Clockify more secure.

Location: Novi Sad & Belgrade

Clockify development team photo

About us

Clockify is the world #1 time tracker, used by millions of people, from individuals to big companies like Hewlett-Packard Enterprise, American Express, Amazon, etc.

Clockify is developed by COING, a software development company with more than 9 years of experience in software consulting. We have developed software solutions for hundreds of clients from all over the world.

  • 2009
  • 100+
  • 2,000,000+


  • Keep track of security issue and vulnerabilities
  • Receive security bug reports
  • Investigate and verify submitted bug reports
  • Prioritize and triage verified issues
  • Make actionable tasks containing possible solution for the development team
  • Maintain public status page of all the submitted issues
  • Communicate with people who have reported the issues
  • Oversee all active and known security issues


  • Bachelor degree in Computer Science
  • Knowledge of web application security (public-key cryptography and SSL)
  • Excellent English (writing)


  • Working knowledge of scripting languages such as Python, PHP and Javascript
  • Working knowledge of web development, Linux system administration and Bash
  • Working knowledge of networking, cloud environment (AWS), system operation tools, and databases
  • Knowledge of application security, cryptography and related domains (be familliar with concepts like CSRF, SQL injection, XSS, insecure deserialization, clickjacking, CORS, web cache poisoning, etc.)

What you'll learn

  • Each layer of a modern web application and how everything works together
  • Web security best practices, common exploits, and how to fix them
  • How to prepare an application for audits and certifications

What we provide

  • Relaxed and strongly result oriented environment
  • 22 days of vacation
  • Flexible working hours
  • Private health insurance
  • Private dental insurance
  • Trainings
  • Unlimited free drinks
  • Equipment: Multiple screens and a laptop (SSD, i7, minimum 16GB RAM)

Ready to apply?

To apply, send us your resume at