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Senior Software Engineer, Server Ingress Security

MongoDB· Server Ingress Security
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Hybrid (Dublin or Cork)full-timePosted 6mo ago

About the role

Senior Engineer position focused on rearchitecting MongoDB Server’s ingress networking and building the Atlas Network Protection layer to harden pre-authentication attack surface and respond to emergent threats. Hybrid role based in Dublin or Cork.

Responsibilities

  • Design, implement, and operate production-ready security services in Rust, with a focus on security, correctness, performance, and operational excellence
  • Develop ingress networking and security solutions that ensure the security, availability, and performance of a database service
  • Diagnose test failures and performance regressions, and implement fixes
  • Lead development and project management for features and initiatives within the Ingress Security domain
  • Collaborate across Server, Atlas, Drivers, SRE, and Product Security teams to ensure the Atlas Network Protection layer integrates seamlessly with the broader MongoDB ecosystem
  • Collaborate with Product Management and Engineering leadership to define the team's roadmap

Qualifications

  • 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
  • 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
  • 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

Skills

Required:RustMulti-threaded programmingPerformance profiling
Nice to have:TLS / Network protocolsSecurity concepts

Benefits

  • Inclusive, diverse, collaborative culture
  • Supportive and enriching culture with employee affinity groups, fertility assistance, and parental leave policy
  • Accommodations for individuals with disabilities in application and interview process
  • Equal opportunities employer
Last updated Oct 15, 2026. Interested? Apply on the company site.
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