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Senior Software Engineer, Pentest Experience

Horizon3

MakeYouFirst tailors your CV to this job, writes the cover letter, finds the recruiter’s email and sends the application from your own mailbox, once you approve it.

In brief

Horizon3 is hiring: Senior Software Engineer, Pentest Experience in the US.

Duties

  • We are hiring a Senior Software Engineer to join our team and help build product experiences that enable customers to understand, prioritize, and…
  • This role is for a strong senior engineer who can own meaningful product work end-to-end, partnering closely with Product, Design, and peer…
  • The right candidate will be comfortable moving between backend services and modern frontend application development.
  • This role will be approximately 80% backend focused and 20% frontend focused.
  • You should be able to scope and drive work independently, proactively identify risks and tradeoffs, and help raise the bar for the engineers through…

Excerpt from the ad

Get to Know Us Horizon3.ai is a fast-growing, remote cybersecurity company dedicated to the mission of enabling organizations to proactively find, fix and verify exploitable attack vectors before criminals exploit them…

Source: ad by Horizon3, published on Careers pages (ATS). MakeYouFirst summarises this ad; the advertiser remains responsible for its content.

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FAQ

Frequently asked questions

Can this job be done remotely?

Yes, the ad says the job is fully remote.

Where is the job based?

The job is based in the US (United States).

How do I apply for this job?

Click “Apply now”: with your free MakeYouFirst account, your CV and cover letter are tailored to this job, the recruiter’s email is found for you and the application is sent from your own mailbox once you approve it.

Which software should I master for software engineer jobs?

Business support roles expect strong office software skills and often a specialist tool, such as an ERP, an HR system, accounting software or a CRM. Name them precisely in your CV, with your level.

Can you start software engineer jobs through an apprenticeship or internship?

Yes, business support and IT employers regularly hire apprentices, interns and graduates, often with a permanent job at the end. Use the contract filter to list those offers.

Listing published by Youssef Douiri, founder of MakeYouFirst · Updated on 9 November 2026

MakeYouFirst — a Global Digital Agency product