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 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. Bonus points for:
Understanding of network protocols, TLS, and connection lifecycle management
Familiarity with security concepts such as attack surface reduction, input validation, memory safety, and defense-in-depth architectures
Excellent verbal and written technical communication skills, with a strong desire to collaborate with colleagues
Strong time management skills and the ability to realistically assess project complexity
B.Sc. in Computer Science or a related field, or equivalent practical experience, with strong competencies in data structures, algorithms, and software design/architecture. Interest in the theory and practice of high-availability, security-critical systems
Position Expectations
Design, implement, and operate prod
Neutral 2–4 sentence summary of what working at this company is like, drawn from public reviews and press coverage. Tone, collaboration style, pace, benefits highlights.
£45,000 – £60,000 (Glassdoor, Levels.fyi, 2025)
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