Deep Layer Security Advisory
CybersecurityProgram Development6 – 10 Weeks

SOC Build & Transformation

End-to-End Security Operations Center Design, Build, and Maturation — From Operating Model to Detection Rules

Building a security operations center is not a tool deployment. It is an operating model problem — roles, tiers, shift coverage, escalation logic, detection strategy, investigation workflows, and metrics that prove the operation works. Most organizations buy a SIEM, assign analysts, and hope that detection happens. It does not.

This engagement designs and builds the SOC from the ground up or transforms an existing operation that is not delivering results. The output is a functioning security operations capability: an operating model with defined roles and escalation paths, 25 to 60 custom detection rules mapped to MITRE ATT&CK, 3 to 8 SOAR playbooks for automated response, 8 to 12 operational playbooks for analyst-driven workflows, a threat hunting starter kit, and analyst training to operate it all.

A formal Design Review Gate separates the design phase from the build phase. Nothing is built until the operating model, detection strategy, and architecture are reviewed and approved. The engagement closes with a 12 to 18 month maturation roadmap — the SOC does not stop improving when we leave.

MITRE ATT&CKNIST CSF 2.0CIS Controls v8MITRE D3FENDNIST SP 800-61 (Incident Handling)

Who This Is For

Ideal clients for this engagement.

Organizations building a SOC for the first time and need the operating model, not just the tooling
Security teams with a SIEM deployed but no structured detection engineering, triage workflows, or operational playbooks
Companies whose current SOC is underperforming — high alert volume, low true-positive rates, inconsistent investigation quality
Organizations transitioning from full MSSP outsourcing to in-house or co-managed security operations

The Problem

What this engagement addresses.

Tools Without an Operating Model

A SIEM and EDR are deployed, but there is no defined tier structure, no escalation criteria, no shift coverage model, and no metrics. The team reacts to whatever alerts appear loudest, not what matters most.

No Detection Strategy

Detection rules are vendor defaults or inherited from the MSSP. No one has mapped what the organization actually needs to detect based on its threat profile, and no one is writing custom rules to close those gaps.

Inconsistent Analyst Response

Investigation quality varies by analyst and by shift. There are no operational playbooks, no standard investigation procedures, and no quality assurance process. The same alert type gets a different response depending on who picks it up.

MSSP Transition Risk

Bringing security operations in-house without a structured build plan creates coverage gaps, knowledge loss, and analyst burnout. The transition requires a parallel operating model, not just hiring and hoping.

No Path to Maturity

The SOC was stood up to meet an immediate need, but there is no roadmap for improving detection coverage, analyst capability, automation, or threat hunting over time. Operations plateau at the initial level.

Deliverables

What you receive.

01

SOC Operating Model

Complete operating model documentation: tier structure, role definitions, shift coverage model, escalation matrix, communication protocols, and handoff procedures. Designed for the organization's size, risk profile, and staffing reality.

02

SIEM Architecture Design

Log source architecture, ingestion pipeline design, data normalization standards, retention policies, and performance considerations. Platform-specific implementation guidance for the organization's SIEM.

03

Custom Detection Rules (25–60)

Purpose-built detection rules mapped to MITRE ATT&CK techniques prioritized for the organization's threat profile. Each rule includes detection logic, data source requirements, expected false-positive profile, triage instructions, and ATT&CK mapping.

04

SOAR Playbooks (3–8)

Automated response playbooks for high-volume, well-understood alert types — enrichment, deduplication, containment, and notification. Designed for the organization's SOAR platform or automation framework.

05

Operational Playbooks (8–12)

Analyst-driven investigation and response playbooks for priority alert categories. Step-by-step procedures with decision trees, escalation criteria, evidence collection requirements, and containment actions.

06

Threat Hunting Starter Kit

Hypothesis-driven threat hunting procedures for 5–10 priority scenarios. Includes data source requirements, query templates, investigation workflows, and reporting templates.

07

Analyst Training Program

Training materials and hands-on exercises covering the operating model, detection rules, playbooks, investigation tools, and escalation procedures. Designed for onboarding new analysts and leveling up existing staff.

08

12–18 Month Maturation Roadmap

Phased improvement plan covering detection coverage expansion, automation growth, threat hunting maturity, metrics refinement, and capability milestones. Designed to continue SOC development after the engagement ends.

Methodology

How the engagement works.

1

Discovery & Design

Weeks 1 – 3

  • Current state assessment: tools, team, processes, coverage
  • Threat profile development and ATT&CK technique prioritization
  • Operating model design: tiers, roles, shifts, escalation
  • SIEM architecture and log source strategy
  • Detection strategy and rule development plan
  • Design Review Gate — all design artifacts reviewed and approved before build
2

Build & Implement

Weeks 4 – 7

  • Custom detection rule development and testing
  • SOAR playbook development and integration
  • Operational playbook authoring
  • Threat hunting starter kit development
  • SIEM configuration and log source onboarding support
3

Training & Enablement

Weeks 8 – 9

  • Analyst training delivery — operating model, playbooks, detection rules
  • Hands-on exercises with real alert scenarios
  • Tabletop walkthrough of operational and SOAR playbooks
  • Knowledge transfer for detection rule maintenance and tuning
4

Transition & Roadmap Delivery

Week 10

  • Maturation roadmap delivery and walkthrough
  • SOC leadership debrief on operational readiness
  • Handoff documentation and ongoing support recommendations
  • Post-engagement support period initiation

Engagement Tiers

Scoped to your architecture.

Foundation

New SOC build or transformation with a single SIEM platform. Core operating model, 25 detection rules, 3 SOAR playbooks, 8 operational playbooks.

  • SOC operating model design
  • SIEM architecture design
  • 25 custom detection rules with ATT&CK mapping
  • 3 SOAR playbooks
  • 8 operational playbooks
  • Analyst training
  • 12-month maturation roadmap

Advanced

Larger SOC operation or transformation with extended detection coverage, automation, and threat hunting. 40 detection rules, 5 SOAR playbooks, 10 operational playbooks.

  • Everything in Foundation
  • 40 custom detection rules
  • 5 SOAR playbooks
  • 10 operational playbooks
  • Threat hunting starter kit
  • Extended analyst training program
  • 18-month maturation roadmap

Enterprise

Complex, multi-site, or multi-tier SOC operations with full detection engineering, automation, and threat hunting programs. 60 detection rules, 8 SOAR playbooks, 12 operational playbooks.

  • Everything in Advanced
  • 60 custom detection rules
  • 8 SOAR playbooks
  • 12 operational playbooks
  • Extended threat hunting program
  • Multi-site coordination model
  • Shift handoff and follow-the-sun design

Prerequisites

  • SIEM platform deployed or selected (engagement does not include tool procurement)
  • Identified SOC team members or hiring plan
  • Executive sponsorship for SOC build or transformation initiative
  • Access to current log source inventory and network architecture documentation

Frequently Asked Questions

Common questions.

Does this include 24/7 monitoring or managed detection?

No. This engagement designs and builds SOC capability — it does not operate it. We deliver the operating model, detection rules, playbooks, training, and roadmap. Your team (or your MSSP/MDR partner) operates the SOC. If you need help evaluating managed service providers, the Security Tool Evaluation offering covers that.

Do you procure or deploy the SIEM/SOAR tools?

No. The engagement requires a SIEM platform to be deployed or selected. We design the architecture, write the detection rules, and build the playbooks for your platform. If you need help selecting a SIEM or SOAR platform, the Security Tool Evaluation offering provides vendor-independent selection.

What happens at the Design Review Gate?

The Design Review Gate is a formal checkpoint between the design and build phases. All design artifacts — operating model, SIEM architecture, detection strategy, and playbook scope — are presented to SOC leadership for review and approval. Nothing is built until the design is approved. This prevents rework and ensures alignment with organizational constraints.

Related Offerings

Often paired with this engagement.

Security Operations Assessment

If you are unsure whether to build, transform, or outsource — start here. The assessment provides the maturity baseline and gap analysis to inform the decision.

SIEM & Detection Engineering

Focused detection engineering engagement for organizations that have an operating model but need to expand ATT&CK coverage and tune their detection pipeline.

Scanner Deployment & Optimization

Ensures vulnerability scanner output feeds cleanly into SOC workflows with proper SIEM integration and ticketing.

Security Tool Evaluation

Vendor-independent SIEM, EDR, or SOAR selection if tooling decisions have not yet been made.

Attack Surface Management

Establishes the external attack surface visibility that feeds SOC detection and prioritization workflows.

Ready to discuss this engagement?

30-minute discovery call. We will discuss your application architecture, your specific concerns, and whether this assessment is the right fit.