Telecom Network Security Engineer (Carrier/Lawful-Intercept Scoped)
Sample Resume & ATS Keywords
This role is scoped deliberately around carrier-exclusive compliance and signaling-security work with no equivalent in generic cybersecurity resumes: CALEA (Communications Assistance for Law Enforcement Act) compliance, lawful-intercept engineering, and SS7/Sigtran/Diameter signaling-protocol security. Real, current employer postings exist for exactly this niche — from LEO satellite-broadband operators hiring CALEA/lawful-intercept engineers to carriers hiring signaling-focused core network engineers — so this resume needs to avoid overlap with generic appsec/CISSP content and instead lead with CALEA and signaling-protocol specifics.
All sample resume content on this page is original and illustrative — fictional candidates, realistic numbers. Use it as a pattern, not a template to copy verbatim.
Sample Telecom Network Security Engineer (Carrier/Lawful-Intercept Scoped) resume summary
What a parseable, keyword-complete professional summary looks like for this role:
Telecom Network Security Engineer (CALEA/Lawful-Intercept Scoped) with CISSP certification and 7 years securing carrier signaling infrastructure and managing lawful-intercept compliance. Implements CALEA-compliant lawful-intercept systems and secures SS7/Sigtran/Diameter signaling across a multi-carrier core network, maintaining a clean compliance-audit record.
Sample achievement bullets that pass ATS screening
Each bullet follows the pattern recruiters and parsers reward: exact keywords, a specific action, and a quantified outcome.
- Implemented CALEA-compliant lawful-intercept systems across 8 core network facilities, passing 100% of compliance audits over 4 years.
- Secured SS7/Sigtran/Diameter signaling infrastructure across a multi-carrier core network, resolving 30+ signaling-security incidents annually with zero data-exposure events.
- Managed law-enforcement liaison and lawful-intercept request fulfillment for 150+ annual requests, maintaining a 100% ETSI/ANSI standards-compliance rate.
- Earned CISSP certification and led a 3-engineer team hardening signaling-protocol security across a national carrier network.
- Reduced signaling-security incident response time from 6 hours to 90 minutes by implementing automated SS7/Diameter anomaly-detection tooling.
- Led a CALEA compliance-readiness audit ahead of a regulatory review, closing 14 of 15 identified gaps within the 90-day remediation window.
- Designed and deployed lawful-intercept (LI) system upgrades across 5 regional switching centers, completing rollout with zero service disruption.
- Reduced unauthorized signaling-access attempts by 46% after implementing enhanced Diameter-protocol access controls across the core network.
ATS keyword bank for Telecom Network Security Engineer (Carrier/Lawful-Intercept Scoped) resumes
From our 2026 research into recruiter sourcing behavior for this role. Recruiter and ATS searches match exact strings — carry the terms your real experience supports, in the wording the posting uses.
| Keyword group | Terms recruiters search |
|---|---|
| Titles & variants | Telecom Network Security Engineer · Lawful Intercept Engineer · Core Network Security Engineer · Signaling Security Engineer · Network Compliance Engineer |
| Certifications & licensure | CISSP · CompTIA Security+ · ETSI/ANSI lawful-intercept standards training |
| Systems & platforms | CALEA lawful-intercept systems · SS7/Sigtran/Diameter signaling platforms · carrier network security monitoring tools |
| Technical/regulatory vocabulary | CALEA compliance · lawful-intercept engineering · SS7, Sigtran, Diameter protocol security · ETSI/ANSI lawful-intercept standards · law-enforcement liaison |
| Quantified outcomes | compliance audits passed · LI systems implemented · signaling-security incidents resolved · carrier scope covered · regulatory response time |
Telecom Network Security Engineer (Carrier/Lawful-Intercept Scoped) resume formatting: do this, not that
Do
- Name CALEA compliance and lawful-intercept engineering explicitly — this is the carrier-exclusive niche that separates this resume from a generic network-security-engineer resume.
- Use exact signaling-protocol terms (SS7, Sigtran, Diameter) since these are non-transferable, telecom-specific keywords with real posting demand.
- Reference ETSI/ANSI lawful-intercept standards by name to show regulatory-framework fluency beyond generic security frameworks.
- Quantify compliance-audit pass rate, incident-response time, and request-fulfillment volume — these are the metrics carrier recruiters search for.
- Keep CISSP/Security+ credential content present but secondary to the CALEA/signaling-specific scope, since that scope is the real differentiator.
Don't
- Don't duplicate a generic cybersecurity-analyst resume's CISSP/appsec content wholesale — this role's value is the CALEA/signaling-specific scope layered on top of it.
- Don't write "network security" without naming CALEA, lawful intercept, or SS7/Sigtran/Diameter specifically.
- Don't omit law-enforcement liaison experience if you have it — it's a distinct, searched responsibility separate from general incident response.
- Don't leave ETSI/ANSI standards unnamed if you've worked with them; they're the specific regulatory-framework keywords for this niche.
- Don't confuse this resume with the Telecom Regulatory Affairs specialist role — this one is engineering-scoped (systems, protocols, incident response), not filings-scoped.
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