Delivery Architect (Network & Security – Firewall)

Aleph (Formerly Red Alpha Cyber); Singapore; On-site; SGD 180,000 - 260,000; Full time

Job summary

Aleph (Formerly Red Alpha Cyber) is seeking a Delivery Architect to lead end-to-end network and security architecture for enterprise and government environments. You will drive design authority, governance, and delivery assurance across firewall, segmentation, and secure connectivity initiatives.

You will act as SME, lead workshops with customers and vendors, and guide project teams through architecture reviews, risk assessments, and acceptance testing, ensuring solutions meet security standards

Qualifications

• 10+ years in Network & Security domains
• 5+ years in Solution or Delivery Architecture
• Experience delivering enterprise or mission-critical environments
• Experience with multi-vendor security environments

Responsibilities

• Develop network and security architectures for enterprise/government environments
• Review High-Level Designs (HLD) and Low-Level Designs (LLD)
• Oversee project implementation and technical delivery
• Engage customer architects and stakeholders and present designs

Skills

Project leadership

Architectural design

Communication

Risk assessment

Documentation

Stakeholder management

Education

PCNSE

NSE 7 / FCSS

CCSE

Cisco Secure Firewall

CISSP

CCSP

CCIE Enterprise Infrastructure

TOGAF

ITIL Foundation

Tools

Palo Alto Networks

Fortinet

Check Point

Cisco Secure Firewall

VMware VCP-NV

Job description

The Delivery Architect (Network & Security - Firewall) is responsible for the end-to-end architecture, design authority, technical governance, and delivery assurance of enterprise network and security solutions. The role provides strategic and technical leadership across firewall, network segmentation, secure connectivity, and cybersecurity initiatives while ensuring solutions are scalable, secure, and aligned with business and customer requirements.

Key Responsibilities

• Develop network and security architectures for enterprise and government environments
• Design and govern security solutions including: Next-Generation Firewalls (NGFW), Network Segmentation and Micro-segmentation, SD-WAN, VPN and Remote Access, Zero Trust Architecture, and Secure Internet Access
• Review High-Level Designs (HLD) and Low-Level Designs (LLD)
• Ensure architecture compliance with security standards and best practices

Technical Leadership

• Act as Design Authority and Subject Matter Expert (SME)
• Lead technical workshops with customers, stakeholders, and vendors
• Provide technical direction to project teams and engineers
• Review solution risks and mitigation plans

Delivery & Governance

• Oversee project implementation and technical delivery
• Ensure solutions meet contractual, operational, and security requirements
• Manage technical escalations and complex problem resolution
• Conduct architecture reviews, design sign-offs, and acceptance testing

Stakeholder Management

• Engage customer architects, security teams, and project stakeholders
• Present solution designs, roadmaps, and recommendations
• Support pre-sales activities and solution proposals
• Evaluate emerging technologies and security trends
• Drive standardization, automation, and optimization initiatives
• Develop technical standards and reusable architectures
• Strategic thinking and systems-level perspective
• Strong analytical and problem-solving mindset
• Ability to handle ambiguity and complex environments
• Innovative and solution-oriented approach
• Strong customer-centric focus
• Ability to balance risk, cost, and business objectives
• Firewall Architecture and Design
• Network Security Controls
• Zero Trust Security
• SD-WAN Technologies
• Routing and Switching
• Security Governance and Compliance
• Security Risk Assessment
• Technical Design Reviews
• Technical Leadership
• Stakeholder Management
• Decision Making
• Influencing and Negotiation
• Mentoring and Coaching
• Strategic Planning

Abilities

• Lead multiple large-scale projects simultaneously
• Translate business requirements into technical architectures
• Communicate effectively with both technical and executive audiences
• Perform architecture reviews and risk assessments
• Produce professional documentation and presentations
• Manage technical conflicts and stakeholder expectations

Experience

• 10+ years in Network & Security domains
• 5+ years in Solution Architecture or Delivery Architecture role
• Experience delivering enterprise or mission-critical environments
• Experience with multi-vendor security environments

Good-to-Have Certifications

Security

• Palo Alto Networks Certified Network Security Expert (PCNSE)
• Fortinet NSE 7 / FCSS Network Security
• Check Point Certified Security Expert (CCSE)
• Cisco Secure Firewall Certification
• Certified Information Systems Security Professional (CISSP)
• Certified Cloud Security Professional (CCSP)

Networking

• Cisco CCIE Enterprise Infrastructure
• VMware VCP-NV
• TOGAF Certified
• ITIL Foundation
• Commensurate with experience and qualifications

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