Application Security Lead

Kraków, Małopolskie, Poland is a successful, rapidly growing start-up offering a unique cloud-based solution of open-source management and security. We are getting millions of customer source code programs from all over the world and analyzing them automatically on a daily basis

We are expanding our portfolio of products, by starting the development of a new, state-of-the-art, cloud-based solution in the field of application security.

We are looking for a highly motivated, talented, and hands-on Application Security Engineer who will participate in building our next-generation static code analysis engines for detection and remediation capabilities. This role offers challenges across a wide variety of responsibilities. You will have an opportunity to establish the application security discipline in the SAST group, and define working procedures, processes, and tools. 

The successful candidate will work closely with algorithms developers, improving the engines, developing security rules, performing a security review of source code, and suggesting optimization. We are searching for a team player with a can-do approach.


  • Performing security source code analysis.
  • Analyze application vulnerabilities and provide mitigation strategies.
  • Researching, designing, and writing application security rules for detection, while working closely with a development team for SAST
  • Analyzing different programming frameworks in different programming languages for potential sources and sinks for SAST.
  • Handling complex cases escalated from the field and other teams.
  • Improving Mend SAST engines for various programming languages.


  • Experience with security review of source code – Must!
  • At least 5 years of experience in application security or security research, including the understanding of application security attacks, vulnerabilities, and mitigations- Must!
  • Knowledge of common Web Application security vulnerabilities (OWASP TOP10, SANS 25, etc.) – Must!
  • Experience with at least 2-3 of the following programming languages -Java, C#, Go, JS, Python, PHP, Ruby, etc- Must!
  • Language agnostic approach to vulnerability identification in the source code (ability to read multiple programming languages source code and identify vulnerable parts).
  • Proven experience leading tasks and projects end-to-end, passion to grow to a TL position
  • Excellent English – written and verbal.
  • Excellent interpersonal and communication skills.


  • BSc or BA in Computer Science or a similar degree
  • Experience in managing application security engineers
  • Experience working with development teams.
  • Experience with bug bounty research or published advisories or exploits for discovered 0day vulnerabilities in applications. 

The Company: is passionate about safeguarding the applications that power our digital world. We are a fast-growing company with a vision for building next-level application security that developers and security teams both love to use. We have offices in Boston and Tel Aviv as well as a global workforce of remote workers.

Our culture is open, inclusive, and engaging, and we work hard to foster a company where everyone feels valued. Mend is a company that lives by its values:

  • We are passionate about excellence
  • We see the world from the customer perspective
  • We are better together

To learn what makes Mend a great place to work, please check out Hiring Feed and see why you should choose us –

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