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Principal Resident Consultant, Professional Services (Application Security)

Cloudflare - Singapore, Singapore - Hybrid - posted 2026-09-28

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Cloudflare is seeking a Principal Resident Consultant for Professional Services specializing in application security. This is a staff-augmentation role where you will be embedded directly within enterprise customer environments as a trusted technical expert and extension of their team. You will own the most complex, high-stakes customer engagements, taking the lead in managing, optimizing, and evolving Cloudflare solutions. Operating with high autonomy, you will make architectural decisions impacting mission-critical infrastructure and partner with executive stakeholders to align technical outcomes with business objectives. Key Responsibilities: • Embed within customer technical teams, operating within their tools, processes, and change-management frameworks • Design, configure, and optimize Cloudflare solutions directly in customer environments • Implement changes, build prototypes, develop automation scripts, and troubleshoot issues in real time • Provide proactive architectural guidance, roadmap alignment, and best-practice recommendations • Produce Solution Designs, HLDs, LLDs, databuilds, procedures, test plans, deployment plans, migration plans, and as-builts • Lead technical workshops, knowledge-transfer sessions, and special-event preparation (product launches, traffic events, security drills, quarterly business reviews) • Act as the voice of the customer within Cloudflare, surfacing product gaps, feature requests, and escalation items to Engineering, Support, and Product • Partner with Account Executives, Solutions Engineers, Customer Success Managers, and Delivery Leaders on account strategy and expansion opportunities This role is ideal for senior technologists with a proven track record of owning end-to-end customer transformations, leading through influence, and scaling expertise across teams. Requirements: • 15+ years of experience in a customer-facing technical role • Recognized expertise in one of the following focus areas with proven track record leading complex, enterprise-scale engagements: - Applications: Advanced tuning of WAF, Bot Management, API Gateway, DDoS protection, Rate Limiting, and performance optimization for global web properties; experience designing security architectures for large-scale, multi-zone deployments - Network: Hands-on management of Magic Transit, BYOIP, complex L3/L4 routing, DDoS resilience, and low-latency global connectivity design; experience with network transformations and MPLS/SD-WAN migrations - Leadership & Mentorship: Demonstrated experience mentoring junior team members, leading technical workshops, and contributing to development of service methodologies, best practices, and reusable assets • Strong networking foundation: Expert-level understanding of OSI model, TCP/IP, TLS, DNS, and HTTP • Hands-on technical skills: Demonstrated ability to implement, configure, and troubleshoot complex solutions; experience with infrastructure-as-code tools (e.g., Terraform) and scripting (e.g., Python, JavaScript, Bash) highly desirable • Project & program management: Ability to manage multiple competing priorities, work to deadlines, and deliver results in ambiguous or fast-moving environments; experience scoping and estimating complex engagements • Exceptional verbal and written communication skills; ability to translate complex technical concepts for both technical and executive audiences • Regional experience: Experience working with enterprise customers in APJC; understanding of regional compliance requirements, business culture, and technical ecosystems Preferred Qualifications: • Experience in heavily regulated industries (Public Sector, Financial Services, Healthcare) or complex legacy-migration environments • Relevant industry certifications: CISSP, CCIE, AWS, GCP, Azure certifications, or equivalent • Familiarity with Agile methodologies and enterprise change-management processes • Familiarity with Zero Trust / SASE—securing distributed workforces with Access, Gateway, CASB, RBI, and DLP; proven experience implementing Zero Trust architectures at enterprise scale • Prior experience with Cloudflare's product suite and edge-network ecosystem

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