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Senior Software Engineer, Server Networking Security (Rust)

MongoDB · Cork, Ireland

Confidence
Medium confidence
Posted
27 Mar 2026
First seen
24 Oct 2026
Last checked

Evidence

Medium confidence

MongoDB is on the Irish DETE permits list. The posting doesn’t mention visas.

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Irish DETE list of companies issued employment permits in 2026

Listed as MongoDB Limited. 41 permits issued so far in 2026. Snapshot 26 Oct 2026.

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Job posting

Doesn’t mention visas or relocation.

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Still open

Seen on the job board

First seen 24 Oct 2026. We check every day and remove closed roles.

Where you apply

mongodb.com

MongoDB’s job board.

Being on the register means MongoDB can sponsor visas. It doesn’t confirm this role qualifies, so check with the recruiter.

About the role

Come join the Server Ingress Security team, where we are rearchitecting MongoDB Server’s ingress networking to make MongoDB clusters even more secure. This new team is building the Atlas Network Protection layer, a set of performant, security-critical services that harden MongoDB's pre-authentication attack surface and provides the ability to respond rapidly to emergent threats.

We are looking for talented Senior Engineers to join the team and be founding members, where you will play a crucial role in our multi-year roadmap. Our team champions a strong culture of inclusivity, diversity, and collaboration. If you want to work on a collaborative team that applies security and systems engineering fundamentals to protect a popular database at scale, join us!

We are looking to speak to candidates who are based in Dublin or Cork for our hybrid working model. Candidate Profile • 5+ years of experience building production-quality systems software • Experience with large backend/compiled codebases and performance-sensitive software, preferably in Rust • Bonus points for experience working hands-on in security-sensitive or networking-adjacent domains • Strong systems fundamentals, including multi-threaded programming and performance profiling.

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