Open Positions

We're always looking for smart, creative people to join our team in Seoul. Our employees enjoy the stability of a time-tested and successful product, and the excitement of developing new products and features.

Software Development Engineer (SDE)

SDEs at AppSealing work on IT mobile security on a global scale, own their systems end to end and influence the direction of our technology that impacts hundreds of millions players around the world.

At AppSealing an SDE can expect to design flexible and scalable solutions, and work on computing challenges by utilizing your skills in data structures, algorithms, and object oriented programming. Coming to AppSealing gives you the opportunity to work on a small development team in one of our components; security core engine, APIs, automation platform.

Basic qualifications

  • 5+ years of experience of system programming in C/C++
  • Computer Science fundamentals in object-oriented design, data structures, algorithm design, problem solving, and complexity analysis
  • Experience delivering maintainable software that scales

Preferred qualifications

  • A good engineer will demonstrate that it can proactively and continually improve its level of knowledge about AppSealing’s business and relevant technologies, and use this knowledge to deliver high quality, accurate software deliverables.
  • Clear, professional communication skills able to contribute to team discussions, knowing when to contribute, when to listen, and when to ask questions.
  • Experience developing in a Linux environment
  • Good understanding of JNI/NDK and Android mobile games development
  • Experience with Agile software development

To apply, please send your resume to

Software Development Engineer in Test (SDET)

As a Software Development Engineer In Test, you will provide both coding and testing expertise for our team, as well as be a constant advocate for our customers. Our preferred candidate possesses a high level of OO coding experience, combined with a demonstrated passion for software quality.

The SDET is able to understand software internals, debug code, automate repetitive tasks, and implement new tools and frameworks needed to streamline our quality process. You work directly with our Software Development Engineers to understand project features, review technical designs, and implement automated test tools that help deliver quality features with efficiency. You understand customer usage models and are able to develop test plans and test cases that approximate real-world environments and scenarios.

Basic qualifications

  • 3+ years overall SDET and/or development experience.
  • Ability to write quality code in multiple level languages like Java, C, C++, C# etc.
  • Demonstrated experience in test planning, test design, test strategy, and test execution.
  • Automation architecture development and/or maintenance experience.
  • Practical coding experience with automated web testing tools, services, and physical mobile devices.

Preferred qualifications

  • Strong knowledge of QA methodology and tools, with demonstrated experience in an SDET role.
  • Experience with user-level automation frameworks such as Appium, Selenium or Calabash.
  • Experience working closely with development and business teams to communicate impacts and to understand business requirements.
  • Strong organizational skills, demonstrated ability to track multiple test executions simultaneously and synthesize results.
  • Creativity and initiative to improve product test coverage and effectiveness for the entire team.
  • Comfortable communicating cross-functionally and across management levels in formal and informal settings.
  • Experience with Agile software development

To apply, please send your resume to