Hire the Best Cybersecurity Enterprise Developers

I find the vulnerabilities in your web apps, APIs, and networks before attackers do, then hand your team a clear, reproducible penetration testing report they can act on. GXPN and GCIH certified. Top Rated on Upwork with 100% Job Success across web application, API, and network security engagements. No scanner dump and no jargon wall. Every finding comes with a severity rating (CVSS), working proof of concept, and a concrete fix your developers can ship. What I test: - Web application penetration testing (OWASP Top 10, PTES, NIST) - API security testing (REST, GraphQL, auth/OAuth, IDOR, broken access control) - SaaS and multi-tenant assessments (Supabase / Firebase data-isolation testing) - Network and external perimeter penetration testing - Source code / secure code review How I work: authorized testing only, on systems you own or have permission to test. Everything is documented over Upwork so you get a written record of every finding, not a verbal hand-wave. I retest after you patch to confirm the holes are actually closed. Credentials: GXPN (GIAC Advanced Penetration Tester & Exploit Researcher), GCIH (GIAC Certified Incident Handler), SANS CTF winner, and an active national/international CTF competitor (web, reverse, crypto, forensics). I also handle WordPress malware removal and incident response. See my Project Catalog for a fixed-price option.

Information Security & GRC Specialist | Cybersecurity Product Manager | Risk & Compliance Consultant I am an experienced Cybersecurity and GRC professional with a proven track record in designing, implementing, and managing security frameworks, compliance programs, and risk management strategies across public and private sectors. With a strong technical foundation and a Master’s degree in Information Security, I bridge the gap between governance, compliance, and hands-on technical security. What I Offer: ✅ Governance, Risk & Compliance (GRC): Policy, procedure, and control development aligned with ISO, NIST, SOC2, GDPR, PCI-DSS, Cyber Essentails, Essential 8, NZISM, NCA, SAMA, etc. Internal audits, control testing, and evidence collection for compliance readiness Risk assessments, vendor due diligence, and enterprise risk register management Awareness training programs development ✅ Cybersecurity Consulting & Technical Expertise: Vulnerability assessment & penetration testing (Metasploit, Nessus, BurpSuite) Security operations & monitoring (SIEM, IDS/IPS, NGFW, WAF) Cloud security (AWS, Azure) and virtual environments (VMware, vSphere) Malware analysis, intrusion detection, and incident response ✅ Product Management for GRC Platforms: Lead product roadmaps for compliance, risk, vendor, and policy management modules SME in embedding international best practices (ISO 27001, NIST, COSO, etc.) into product features Experience working closely with developers, QA teams, and stakeholders to deliver secure, user-friendly, and compliance-driven platforms Skilled in customer-facing demos, stakeholder engagement, and executive-level presentations Certifications & Credentials: Certified Information Security Manager CISM - ISACA ISO/IEC 27001 Lead Implementer – PECB International Certificate in Enterprise Risk Management – IRM UK Certified in Cyber Security (CC) – (ISC)² GRC Professional – OneTrust HCIA Security – Huawei | CCNA Security – Cisco Plus certifications in Threat Intelligence, Python, and Network/Endpoint Security Why Work With Me? I combine strategic GRC expertise with deep technical cybersecurity knowledge—rare in the industry. Whether you need end-to-end compliance implementation, risk assessments, vendor security reviews, or product strategy for GRC and cyber security platforms, I can deliver with professionalism, accuracy, and a solutions-focused mindset. Let’s work together to strengthen your organization’s security posture, streamline compliance, and build trust with stakeholders.

I help companies design, automate, secure, and optimize cloud platforms on AWS, Azure, and GCP. With 8+ years of hands-on experience in Cloud, DevOps, Security, and Platform Engineering, I have led cloud transformation, infrastructure automation, Kubernetes modernization, FinOps initiatives, and enterprise security programs for Fortune 500 organizations and large-scale global environments. My expertise goes beyond infrastructure deployment—I focus on building scalable, secure, highly available, and cost-efficient platforms that accelerate software delivery while reducing operational overhead. I currently work as a Technical Lead responsible for cloud operations, platform engineering, security governance, automation, infrastructure modernization, cost optimization, and DevSecOps initiatives across multi-cloud environments. What I Can Help You With Cloud Architecture & Platform Engineering ✔ AWS Landing Zones & Multi-Account Architectures ✔ AWS Organizations & Control Tower ✔ Cloud Migration & Modernization ✔ High Availability & Disaster Recovery ✔ Hybrid Cloud & Multi-Cloud Architectures ✔ Platform Engineering & Internal Developer Platforms ✔ Infrastructure Standardization & Governance ✔ FinOps & Cloud Cost Optimization DevOps & CI/CD ✔ GitHub Actions ✔ GitLab CI/CD ✔ Jenkins ✔ AWS CodePipeline ✔ Bitbucket Pipelines ✔ ArgoCD ✔ Blue/Green Deployments ✔ Canary Releases ✔ Zero-Downtime Deployments ✔ Release Automation ✔ Environment Promotion Strategies Kubernetes & Container Platforms ✔ Amazon EKS ✔ Amazon ECS (EC2 & Fargate) ✔ Kubernetes Administration ✔ Cluster Upgrades & Modernization ✔ Helm ✔ Ingress Controllers ✔ Service Mesh ✔ Container Security ✔ Docker ✔ Container Registries (ECR, Docker Hub) ✔ Production Kubernetes Operations Infrastructure as Code & Automation ✔ Terraform ✔ OpenTofu ✔ CloudFormation ✔ Ansible ✔ Packer ✔ Python Automation ✔ Bash Scripting ✔ Infrastructure Lifecycle Management ✔ GitOps ✔ Self-Service Provisioning Platforms AI Infrastructure, MLOps & AIOps ✔ Amazon Bedrock ✔ Amazon Q ✔ OpenAI API Integrations ✔ AI-Powered DevOps Workflows ✔ LLM Infrastructure Deployment ✔ AI Agent Hosting Platforms ✔ Vector Databases ✔ RAG Infrastructure ✔ GPU Workloads ✔ Kubernetes for AI Platforms ✔ MLOps Pipelines ✔ AI Observability ✔ AIOps & Intelligent Incident Management ✔ AI-Assisted Infrastructure Automation Cloud Security & DevSecOps ✔ AWS Security Best Practices ✔ IAM Governance ✔ Identity Federation & SSO ✔ Security Baselines ✔ Secrets Management ✔ WAF & Edge Security ✔ Vulnerability Management ✔ Security Automation ✔ Compliance Automation ✔ SOC2 Readiness ✔ ISO 27001 Controls ✔ CIS Benchmark Implementations ✔ Cloud Security Reviews & Audits AWS Expertise ✔ EC2 ✔ ECS ✔ EKS ✔ Lambda ✔ API Gateway ✔ VPC ✔ Route 53 ✔ CloudFront ✔ ALB / NLB ✔ S3 ✔ RDS ✔ DynamoDB ✔ Aurora ✔ Elasticache ✔ Secrets Manager ✔ Systems Manager ✔ Control Tower ✔ Organizations ✔ Config ✔ CloudTrail ✔ GuardDuty ✔ Security Hub ✔ Compute Optimizer ✔ Cost Explorer ✔ Budgets ✔ Savings Plans & Reserved Instances Monitoring, Observability & Reliability Engineering ✔ CloudWatch ✔ Prometheus ✔ Grafana ✔ ELK Stack ✔ OpenSearch ✔ OpenTelemetry ✔ Distributed Tracing ✔ New Relic ✔ Datadog ✔ Dynatrace ✔ Incident Response ✔ SRE Practices ✔ Reliability Engineering ✔ Capacity Planning Certifications 🏆 AWS Certified Solutions Architect – Professional 🏆 AWS Certified DevOps Engineer – Professional 🏆 AWS Certified Security – Specialty 🏆 AWS Certified AI Practitioner 🏆 Google Cloud Associate Cloud Engineer Why Clients Work With Me ✅ Technical Lead with real enterprise-scale cloud experience ✅ Strong architecture and hands-on implementation skills ✅ Security-first mindset ✅ Deep AWS expertise ✅ Cost optimization and FinOps experience ✅ Fast troubleshooting and root-cause analysis ✅ Clear communication and documentation ✅ Visiting Lecturer in Cloud, DevOps, and Security ✅ AWS Community Contributor and Public Speaker Areas I Commonly Support AWS Infrastructure Design Terraform Projects Kubernetes / EKS ECS Fargate Cloud Security Reviews CI/CD Automation Cloud Cost Optimization Platform Engineering AI Infrastructure MLOps & AIOps DevSecOps Cloud Migrations Production Troubleshooting Observability & Monitoring

AI Development & Digital Transformation | Custom Software and Web Development | LLMs, RAG, Agentic AI, Full-Stack Developers| Expert-Vetted Top 1% I genuinely love helping businesses build kick-ass AI and custom software products and that obsession has earned Valere an Expert-Vetted Top 1% badge on Upwork, ranking us among the top 1% of software development talent on the platform. I'm Guy, CEO and founder of Valere. After 15+ years building, consulting, and launching consumer software products (including two acquisitions, one being a 15-million user app) I started Valere to help companies become AI-first through end-to-end engineering and transformation. We walk our clients through the whole process from AI planning and assessment, discovery, product design, technical solutioning, development, deployment, team adoption, AI upskilling/ AI coaching, and ongoing improvement. My ultimate goal is to help companies become AI-first by handling the full lifecycle and providing with tangible outcomes that we can all be proud of. There’s a lot of heart that goes into building impactful products. On paper, that looks like…300+ production deployments. $900M+ in measured client impact. 94% partner satisfaction. Clients include Fortune 500 companies, Johns Hopkins University, United Rentals, Mars, iHeartMedia, and CarShield. Client platforms we've built have helped raise $70M+ in venture and institutional funding. What my team builds: ✔ AI: Agentic systems, LLM applications, RAG pipelines, NLP, computer vision, ML, predictive analytics, generative AI, deep learning ✔ Web Development: React, Angular, Vue, Next.js ✔ Mobile Development: React Native, Flutter, Swift, Kotlin ✔ Back-end: Python, Node.js, .NET, PHP ✔ Cloud & DevOps: AWS, Azure, Google Cloud, Docker, Kubernetes ✔ Data: PostgreSQL, MongoDB, Snowflake, dbt ✔ Design: UX/UI, design systems, accessibility Who I work with: Venture-backed startups, PE-backed companies, mid-market businesses, and Fortune 500 enterprises across healthcare, finance, sports, fitness, education, and operations. Why clients choose us: ⭐️ AWS Advanced Tier & recognized AI/ML Partner ⭐️ Ranked #2 AI Services Provider on G2 a verified enterprise reviews ⭐️ Clutch Global Awards 2026 Top ML & AI Provider | Top 15 AI/ML worldwide ⭐️ Expert-Vetted Top 1% Agency on Upwork and featured in Upwork's 2023 Q2 Shareholder Report ⭐️ Selected for Upwork's Customer Advocacy Program, invited speaker at Upwork AI events ⭐️ The Manifest: Most Reviewed Developer 2024 ⭐️ Recognized Top 5 Trusted AI Agency by Tom Popomaronis Our AI transformation model: We transform companies into AI-first organizations through three tracks: Build (end-to-end AI and custom software development), Educate (AI workforce readiness via Valere Learning and General Upskilling through Evolve, our social platform), and Scale (proprietary products including Conducto, our agentic AI orchestration framework, and Dactic, our research automation platform). 225+ global professionals: AI Strategists, Data Scientists, Generative AI Developers, Agentic AI Engineers, UX Designers, Product Managers. U.S.-based oversight, 24/7 global coverage. Each client I work with gets decades of direct experience, through our engineers and through processes iterated on for YEARS across hiring, engineering, design, and QA. I'm OBSESSIVE about excellence. Anything less is unacceptable, which is why I only take on work we can execute at the highest level. If you have read this far, please note I appreciate you taking the time. I would love to learn about what you're building. Send me a message. Let’s chat!

I design and build production-grade security systems for companies that need to secure cloud infrastructure, pass audits, and operate in regulated environments. Most teams don’t have a security tool problem. They have an architecture, integration, and execution problem. That’s where I come in. What I Do I help startups and enterprise teams move from: ❌ fragmented tools and partial controls ❌ audit delays and failing security reviews ❌ reactive fixes and security debt → to ✅ engineered, scalable security architecture ✅ audit-ready, continuously compliant environments ✅ automated, integrated security operations Core Expertise Cloud Security & Cryptography • Multi-cloud security architecture (AWS, Azure, GCP) • TLS PKI systems with automated certificate lifecycle (IaC + CI/CD) • Encryption architecture (CMEK, KMS, data masking, data protection) • Cryptographic hardening aligned with FIPS and modern standards • DNS security, network isolation, and zero-trust patterns Identity & Access Management • SSO (SAML, OIDC), enterprise identity federation • RBAC and least-privilege system design at scale • SCIM provisioning and identity lifecycle automation • Integration with enterprise IdPs (PingFederate, Azure AD, Okta) • Cross-account and multi-environment access control Compliance & Audit Readiness • SOC 2, ISO 27001, PCI DSS, HIPAA, FedRAMP-aligned environments • End-to-end delivery: gap assessment → implementation → audit support • Control design, remediation, and evidence automation (Vanta, Drata, custom pipelines) • Continuous compliance monitoring vs point-in-time audits • Closing audit findings fast (not just identifying them) Security Engineering & Incident Response • CI/CD security (SAST, DAST, IaC scanning, secret management) • Vulnerability management with automated remediation workflows • Cloud misconfiguration detection (CIS benchmarks, runtime analysis) • Secure system design across infrastructure and application layers • Incident response, forensics support, and system hardening AI-Driven Security I don’t just integrate tools — I design security platforms. I have built and architected multi-agent AI-driven cybersecurity systems combining: • Cloud security analysis (AWS integrations, IAM analysis, misconfiguration detection) • Offensive security (recon, exploitation, privilege escalation simulation) • Vulnerability management (SAST, DAST, fuzzing, CI/CD integration) • SOC automation (SIEM/SOAR integrations, alert enrichment, playbooks) • Forensics and incident investigation workflows • Compliance reporting mapped to frameworks (SOC 2, ISO 27001, PCI, HIPAA) Key capabilities: • Multi-agent orchestration and communication • Automated remediation workflows • MITRE ATT&CK mapping and executive reporting • API-driven integrations across security tooling ecosystem • Role-based access for security, DevOps, and compliance teams This enables: → Continuous security instead of periodic assessments → 80% reduction in manual security effort → Faster audit readiness and real-time visibility How I Work • Engineering-first — I build and implement, not just advise • Work directly in production systems (cloud, identity, pipelines) • Design for real audit constraints, not theoretical compliance • Fast execution, clear communication, and ownership Typical Clients • SaaS companies preparing for SOC 2 / ISO 27001 / HIPAA • Cloud-native platforms handling sensitive or regulated data • Startups entering enterprise sales with security blockers • Organizations with fragmented security tools that don’t work together Important I’m not a fit for checklist-based security or surface-level audits. If you need: • real security architecture • working implementations • systems that pass audits and hold up in production - we’ll work well together.

Hi, I’m Liem — the compliance cat who finds the gap 😼 If there’s a HIGH finding, missing MFA, or an unclear scope, I’ll spot it before your auditor does. I have 5+ years of hands-on experience helping startups and service providers in the US and APAC achieve and maintain compliance with PCI DSS, SOC 2, ISO 27001, and NIST, working extensively with Vanta and Drata. What I help you with: 1. PCI DSS readiness & gap assessment 2. Fixing ASV scan failures (fast, clean, and justified) 3. SOC 2 control implementation & evidence mapping 4. Remediation support and direct coordination with auditors / QSAs I don’t just tell you what’s wrong — I help you fix it, justify it, and pass the audit. If your audit is coming up and gaps are starting to appear… don’t worry 😼 I’ve already found them.