Menlo Security Inc. logo

Senior Software Engineer I

Job Overview

Location

Israel

Job Type

Full-time

Category

Software Engineer

Date Posted

February 26, 2026

Full Job Description

đź“‹ Description

  • • Join Menlo Security, a rapidly growing cybersecurity leader on a mission to enable the world to connect, communicate, and collaborate securely without compromise. In the wake of global shifts, our mission has become more critical than ever, and we are expanding our team to meet this challenge. We are seeking a highly motivated and skilled Senior Software Engineer I to join our dynamic Content Inspection team, based in EMEA - Israel.
  • • The Content Inspection team is at the heart of Menlo Security's platform, responsible for all file processing operations. This includes managing file uploads and downloads, intricate document handling, and the secure processing of email attachments. Our work spans across both our Secure Web Gateway (SWG) and Isolation products, ensuring comprehensive protection for our users.
  • • As a Senior Software Engineer I on this team, you will play a pivotal role in decoding, parsing, and inspecting files to detect and neutralize malicious content. You will leverage our proprietary patented techniques and integrate with cutting-edge third-party solutions to build robust security measures.
  • • Our innovative web isolation platform provides a unique advantage, allowing us to intercept files at a granular level, beyond traditional network or SWG layers. This enables us to prevent malware from reaching endpoints by employing advanced techniques such as Anti-Virus (AV) scanning, Sandboxing, and seamless integration with various external security tools.
  • • Beyond malware prevention, you will contribute to safeguarding sensitive corporate data from exfiltration. This involves developing and enhancing solutions for Data Loss Prevention (DLP) matching, static analysis, and the application of machine learning algorithms to identify, block, and alert on the unauthorized transfer of confidential information.
  • • This is an exceptional opportunity to work within an exciting, fast-paced environment that offers significant growth potential. The code you write will be deployed and utilized by millions of users daily, making a tangible impact on the security of our customers within weeks of its development. You will be a critical contributor to the core functionality of the Menlo Security platform, directly contributing to keeping end-users safe from evolving cyber threats.
  • • You will be instrumental in evaluating and implementing the latest development and deployment technologies. This includes designing APIs, building highly available and scalable distributed systems, and developing multithreaded/asynchronous applications with a paramount focus on performance and security.
  • • As a senior member of the team, you will technically lead large-scale projects from conception to completion. You will be actively involved in the entire lifecycle of our platform, including building, deploying, and operating it.
  • • Your responsibilities will extend to architecting, designing, developing, and owning new features and services. You will be a key contributor to shaping Menlo Security's technical roadmap, influencing the future direction of our innovative security solutions.
  • • Collaboration is key. You will partner closely with product managers, security experts, operations teams, and other cross-functional stakeholders to ensure alignment on requirements, project timelines, and strategic objectives.
  • • We foster a culture of continuous improvement, encouraging the adoption and refinement of engineering best practices. This includes championing test-driven development (TDD), continuous delivery (CD), agile methodologies like Scrum, robust automation strategies, and the creation of maintainable and thoroughly testable code.
  • • You will contribute to the evolution of our security infrastructure, ensuring it remains resilient, performant, and secure against sophisticated threats.
  • • This role demands a proactive and self-motivated individual with a strong aptitude for learning new technologies and concepts with minimal supervision. Your ability to be highly organized, possess critical attention to detail, and maintain thorough documentation will be essential for success.
  • • You will be part of a company that is well-funded for growth, backed by world-class investors including Vista Equity Partners, General Catalyst, JPMC, American Express, HSBC, and Ericsson Ventures. This financial stability provides a strong foundation for innovation and expansion.
  • • Menlo Security is committed to fostering a collaborative, inclusive, and fun work environment. Our core values – Stay Aligned, Get It Done, Customer Empathy, Think Creatively, and Help Each Other Out – guide our daily operations and interactions. We champion open communication, encourage the exploration of new ideas, and cultivate a shared mindset focused on achieving our collective goals.
  • • This is a unique chance to take initiative, implement groundbreaking ideas, and contribute to building a lasting legacy in the cybersecurity industry. Your work will directly impact the security posture of some of the world's largest enterprises, including Fortune 500 companies, major global banks, and government agencies.

Skills & Technologies

Python
Go
Rust
Express
PostgreSQL
Senior
Onsite

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Menlo Security Inc. logo
Menlo Security Inc.
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About Menlo Security Inc.

Menlo Security Inc. offers a cloud-based security platform designed to protect organizations from malware and phishing threats. Their core technology, the Cloud Secure Gateway, isolates potentially harmful content in a virtual environment, preventing it from reaching end-user devices. This approach eliminates threats at the source, ensuring a safe browsing experience for users across all devices and locations. The platform integrates with existing security infrastructure and provides comprehensive visibility and control over web, email, and document-based threats. Menlo Security's solution is built on a Zero Trust principle, focusing on containment and adaptive security to defend against evolving cyberattacks and protect sensitive data.

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