Henry Igbozurike

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Security Architect (Freelance)

Upwork, USA

Jan 2025 - Current (1 year 5 months)

• Led security architecture design for cloud-based environments (AWS, GCP, Microsoft Azure), implementing security controls such as IAM, VPC, and encryption in line with industry best practices and compliance standards. • Developed security roadmaps and advised clients on application and infrastructure security, reducing vulnerabilities by 30% within 3 months. • Led end-to-end security program planning, ensuring secure configurations and ongoing compliance throughout development and operational cycles. • Communicated actionable security requirements to senior stakeholders and development teams, ensuring seamless integration of security within business processes. • Conducted targeted social engineering assessments (phishing simulations, pret

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Security Architect & DevSecOps Engineer

Xapic Technologies, Nigeria

Jan 2024 - Current (2 years 5 months)

• Designed and implemented Zero Trust security architectures for cloud-based applications, ensuring secure configurations for IAM and encryption, and leveraging expertise in cloud security, identity and access management (IAM), and Zero Trust principles to safeguard sensitive data and access. • Integrated security into CI/CD pipelines using tools like GitHub Actions, reducing vulnerabilities by 40% and streamlining secure development practices across teams through robust DevOps and CI/CD processes. • Led the operational implementation of security controls and continuous monitoring processes to ensure system integrity and availability, utilizing Grafana and Prometheus for comprehensive security monitoring and observability. • Provided proact

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DevOps Engineer

Xapic Technologies

Dec 2023 - Current (2 years 6 months)

DevOps Engineer • Embedded security throughout the full software development lifecycle, performing in-depth security code reviews and hardening on C#/.NET back-end services, addressing injection vulnerabilities, authentication flaws, and secure data handling. • Guided teams on securing AI/ML features, protecting training data pipelines, model-serving APIs, and implementing defenses against adversarial attacks. • Integrated automated Python-based security scanning directly into the CI/CD pipelines, reducing application vulnerabilities by 40%. • Enabled the secure, reliable deployment of both C#-based enterprise services and AI-driven capabilities in production, directly equipping me to contribute to AI, back-end, and full-stack projects. • U

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Data Science Practitioner

Freelance Independent Projects – Remote

Jan 2023 - Current (3 years 5 months)

Data Science Practitioner Performs end-to-end data analysis, including data gathering, cleaning, validation, and preprocessing of large, heterogeneous datasets from multiple sources. Built and maintained data pipelines for collection, transformation, and quality assurance to support analytics and machine learning workflows. Conducted exploratory data analysis, statistical evaluation, and visualization to identify patterns, trends, and actionable insights. Supported AI and machine learning initiatives through data preparation, feature engineering, dataset curation, and model performance evaluation. Collaborated with technical teams to ensure data quality, documentation, and compliance with relevant licensing and usage policies. Managed high

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Data Science Practitioner

Freelance Independent Projects – Remote

Jan 2023 - Current (3 years 5 months)

Performed end-to-end data analysis, including data gathering, cleaning, validation, and preprocessing of large, heterogeneous datasets from multiple sources. Built and maintained data pipelines for collection, transformation, and quality assurance to support analytics and machine learning workflows. Conducted exploratory data analysis, statistical evaluation, and visualization to identify patterns, trends, and actionable insights. Supported AI and machine learning initiatives through data preparation, feature engineering, dataset curation, and model performance evaluation. Collaborated with technical teams to ensure data quality, documentation, and compliance with relevant licensing and usage policies. Managed high volumes of structured and

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Security Engineering & Compliance Analyst (Intern)

Virtually Testing Foundation, USA

May 2022 - Aug 2022 (4 months)

• Contributed to the implementation of ISO 27001 frameworks, ensuring compliance and continuous monitoring of information security practices. • Utilized Splunk for real-time threat detection and collaborated with stakeholders to ensure ongoing compliance with security policies. • Leveraged foundational knowledge of software engineering principles, including secure code practices, code reviews, and the implementation of security controls within the SDLC, which has since evolved into an ability to drive secure coding best practices and build custom security automation tools. • Analyzed and hardened containerized environments, identifying misconfigurations, runtime vulnerabilities, and supply-chain risks, which has developed into deep expertis

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Document Sourcing and Compliance Specialist

Freelance & Contract, Remote

Mar 2022 - Current (4 years 3 months)

- Sourced and evaluated publicly available documents and datasets from government archives, academic repositories (SEC EDGAR, arXiv, Kaggle, GitHub), open datasets, and licensed open-source platforms. - Reviewed, verified, and documented licensing types for each sourced document, ensuring strict compliance with requirements including CC0, CC-BY, MIT, Apache 2.0, and equivalent licenses. - Logged detailed metadata for all sourced materials, including source URLs, license information, and usage restrictions using designated tracking tools. - Identified and flagged documents with ownership issues, unclear licensing, paywalled content, or non-commercial restrictions; collaborated with data engineering and compliance teams to resolve ambiguities

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Penetration Tester

Bugcrowd, USA

Jan 2022 - Dec 2023 (2 years)

• Conducted comprehensive penetration tests across cloud, web, mobile, and IoT platforms, identifying over 300 vulnerabilities and leading remediation efforts with a 98% success rate. • Implemented automated workflows to speed up vulnerability detection and remediation, improving response times by 40%. • Delivered detailed security reports, aligning findings with OWASP Top 10 and regulatory compliance requirements, ensuring actionable insights for clients. • Performed in-depth security assessments of modern application stacks, including services built with Rust, to identify exploitable vulnerabilities in high-performance, security-critical backend services and data platforms. • Conducted targeted penetration tests on Rust-based components,

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Penetration Tester

HackerOne, USA

Jan 2020 - Dec 2023 (4 years)

• Secured cloud environments on AWS and GCP, implementing access controls and encryption protocols, addressing infrastructure security challenges for clients. • Developed custom Python scripts for automated security monitoring, enhancing response times by 30%. • Conducted security assessments on IoT and medical systems, ensuring compliance with HIPAA and other healthcare regulations. • Leveraged extensive experience in social engineering, including conducting hundreds of security assessments at HackerOne (USA) where social engineering was a frequent component of realistic, end-to-end attack simulations. • Executed targeted social engineering campaigns such as phishing, credential harvesting, and pretexting, both independently and in conjunc

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Software Engineer

CypherCrescent Limited,

Sep 2019 - Nov 2022 (3 years 3 months)

Software Engineering • Developed and optimized software solutions for complex, data-intensive environments within the energy sector, contributing to systems that process large-scale engineering datasets for predictive modeling. • Implemented evaluation frameworks to validate model accuracy, robustness, and performance under real-world conditions, including uncertainty quantification, sensitivity analysis, and iterative refinement of simulation models. • Integrated backend services using Node.js and TypeScript with data pipelines that feed into and evaluate analytical models. • Applied expertise in model evaluation, mirroring needs in cutting-edge AI infrastructure such as rigorous testing of model behavior, performance benchmarking, edge-c

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