Open Source Developer

Seal Security

Seal Security

Software Engineering
Israel
Posted on Jul 14, 2025

Seal Security is a rapidly growing cybersecurity startup. We help customers save developer hours and headaches while reducing both software supply-chain risk and organizational friction- by making the process of remediating open-source vulnerabilities easier and more efficient with fully compatible, security-patched versions of the libraries our customers are using.

We are backed by top-tier venture capital firms, guided by industry-leading cybersecurity and go-to-market experts, and have exploded out of stealth mode with numerous Fortune 500 customers.

Join Our Growing Open Source Team

We’re looking for a driven and curious individual with a basic security background to join our Open Source team. In this role, you'll contribute directly to our core technology and help shape the future of our platform.

This position offers a unique opportunity to grow with a fast-moving startup, take ownership of impactful projects, and advance your career. As a member of our R&D team, you'll be part of an ambitious and dynamic group. We leverage cutting-edge advancements in DevOps and LLMs and have developed an automated pipeline for security patches, addressing a significant gap in the open source remediation domain.

Are you up for the challenge?

Responsibilities:

  • Craft security patches for open source libraries used by Seal's clients.
  • Design and implement tools to automate the patching process.
  • Contribute to technological and architectural decisions.

Requirements:

  • 3+ years of experience in backend engineering with various programming languages (e.g., Python, JavaScript, Java, C).
  • A bachelor’s degree in computer science or a related field, or equivalent work experience and certifications.
  • Ability to learn new software and technologies quickly.
  • Advantage: experience in security research (e.g., vulnerabilities, exploits).