SME-App Security with SAST/SCA

XPT Software; Sydney; On-site; AUD 180,000 - 240,000; Full time

Job summary

XPT Software is seeking a Senior SME-App Security to own the design, standards, and hands-on delivery of SAST/SCA across GitLab SaaS and On-Prem. This role requires deep expertise in secure SDLC, vulnerability management, architecture review, and developer enablement, focused on a high-impact security rollout for its initiative.

You will define target-state architecture, set policies, review pipelines, and enable engineers through training and documentation to sustain secure practices after

Qualifications

• Deep knowledge of SAST, SCA, DAST, and secrets detection; internals of analyzers.
• Hands-on experience with GitLab native security scanning across SaaS and Self-Managed.
• Experience with at least one major third-party SAST/SCA tool for build-vs-buy decisions.
• CI/CD pipeline engineering fluency; ability to review .gitlab-ci.yml and assess impact.
• Strong understanding of vulnerability scoring and prioritization (CVSS, EPSS, CWE).
• Secure design fundamentals including authN/authZ and threat modeling (STRIDE).
• Excellent communication for developer training and cross-team escalation.

Responsibilities

• Assess SDLC and CI/CD architecture for SaaS and On-Prem instances.
• Define target-state SAST/SCA architecture and coverage gaps; assess Third-party tools if needed.
• Review pipeline and repo structure for security-relevant design issues.
• Set scanning policy: severity thresholds, gates, exemptions, and false-positives management.
• Define secure coding standards and guardrails against OWASP ASVS and CWE.
• Design vulnerability triage and remediation workflow with SLAs by severity.
• Provide technical input for vendor evaluations and sign-off on rollout readiness.
• Deliver secure coding and remediation training for engineering teams.

Skills

SAST

SCA

DAST

Vulnerability management

CI/CD security

Secure SDLC

Threat modeling

Developer enablement

CVSS/EPSS

Tools

GitLab security scanning

Advanced SAST

Dependency scanning

Secrets detection

Third-party SAST/SCA tool

Job description

Position: SME-App Security

Team: Cybersecurity — Application Security Engineering

Role Purpose

Own the technical design, standards, and hands-on delivery of SAST/SCA capability across GitLab SaaS and GitLab On-Prem. This role carries the full depth of an AppSec Specialist's skillset — secure SDLC design, vulnerability management discipline, architecture review, developer enablement — but applied narrowly and intensively to this one initiative for its duration, rather than as an ongoing cross-portfolio function.

Key Responsibilities

• Assess current SDLC and CI/CD pipeline architecture across both GitLab SaaS and Self-Managed/On-Prem instances, including version currency on the On-Prem side.
• Stakeholder management as there are different owners for Gitlab SaaS and Gitlab OnPrem
• Define the target-state SAST/SCA architecture: which GitLab-native features to use (Advanced SAST, dependency scanning, container/secrets scanning if in scope), where coverage gaps exist, and whether a third-party tool is required to close them.
• Review pipeline and repo structure for security-relevant design issues (authN/authZ patterns, trust boundaries, dependency exposure) uncovered during rollout.
• Set scanning policy for the initiative: severity thresholds, blocking vs. non-blocking pipeline gates, exception/waiver criteria, and false-positive management approach.
• Define secure coding standards and guardrails scanning results should be measured against (e.g., OWASP ASVS, CWE Top 25), scoped to the languages/frameworks in this rollout.
• Design the vulnerability triage and remediation workflow, including SLAs by severity, and how findings map into existing ticketing/GRC tooling.
• Validate feasibility of BA-authored requirements before they're finalized; provide technical input into vendor evaluation/RFP if a third-party tool is shortlisted.
• Perform root-cause analysis on recurring finding patterns surfaced during pilot rollout, and adjust scanning configuration/rules accordingly.
• Provide technical sign-off on rollout readiness per team/project before scanning gates go live.
• Run secure coding and remediation training for engineering teams as scanning gates go live for their projects.
• Build lightweight internal documentation/reference material so teams can self-serve common remediation patterns after the SME's engagement ends.
• Document architecture decisions, policy rationale, and configuration standards in a form the client's ongoing security team can operate and extend after the fixed-term engagement concludes.

Experience Level

Senior, 8+ years in application security / secure software engineering, with at least 4–5 years hands-on with SAST/SCA tooling specifically, and prior experience in AppSec practice broadly enough to bring architecture review and developer-enablement skills, not just scanner configuration.

Required Knowledge & Skills

• Deep working knowledge of SAST, SCA, DAST, and secrets detection — internals of how static analyzers work, not just tool operation.
• Hands-on experience with GitLab's native security scanning (Advanced SAST, dependency scanning) across both SaaS and Self-Managed, including feature parity gaps between tiers/versions.
• Practical experience with at least one major third-party SAST/SCA tool to inform build-vs-buy decisions credibly.
• CI/CD pipeline engineering fluency — able to write/review .gitlab-ci.yml and reason about pipeline performance impact.
• Strong grasp of vulnerability scoring/prioritization (CVSS, EPSS, CWE) and experience avoiding alert fatigue in high-volume scanning environments.
• Secure design fundamentals — authN/authZ, threat modeling (e.g., STRIDE) — sufficient to review architecture surfaced during rollout.
• Strong communication skills for developer training and cross-team escalation handling.
• Telco or critical-infrastructure security experience is a strong plus given regulatory and change-control constraints.

Nice to Have

• Relevant certifications: OSCP, GWAPT, CSSLP, or equivalent.
• Experience running a phased SAST/SCA rollout across a large multi-team, multi-repo GitLab estate (100+ projects).
• Experience structuring handover documentation/runbooks for fixed-term security engagements.