Hire the Best Software QA Testers
in Venezuela

🌟 Hi! I’m Mariangeli. As a Computer Science Engineer, I bridge the gap between complex technical systems and seamless business operations. I specialize in ensuring software quality, managing technical backends, and optimizing data-driven processes. Here is how I can support your technical needs: 🔹 Manual QA Testing & Quality Assurance I perform rigorous functional testing, regression testing, and UX analysis for web and mobile applications. I provide detailed bug reporting and documentation (Jira/Trello) to ensure your product is market-ready. 🔹 IT Support & Technical Assistance I manage the technical core of your business. From WordPress & Shopify backend administration to troubleshooting system errors and managing technical documentation. I ensure your platforms are stable and efficient. 🔹 AI Data Training & Management I assist in AI model development through high-quality data annotation, content evaluation, and logical categorization. My engineering background ensures the precision required for complex AI training projects. Why work with me? ✔ Engineering Mindset: I don't just follow steps; I analyze logic and optimize workflows. ✔ Bilingual: Professional English & Spanish communication. ✔ Reliable Execution: Expert in asynchronous collaboration and project management tools. My Technical Toolkit: Manual Testing · Jira · Trello · WordPress · Shopify · SQL Basics · AI Annotation Tools · Slack.

I bridge the gap between engineering precision and high-end marketing visuals. As a Top Rated freelancer with an Industrial Design and Engineering background from UCV, I don't just make things "look good"—I ensure they work. My expertise allows me to take a project from a rough technical sketch to a photorealistic marketing asset or a manufacturing-ready file. What I bring to your project: · Technical Rigor: My engineering roots ensure scale accuracy, proper topology, and manufacturing feasibility (STL/STEP). · Marketing Aesthetics: I produce editorial-quality renderings that have been featured in international publications. · Versatility: Whether it's Fashion Tech (Clo3D), Product Viz (Blender), or Vector Graphics (Illustrator), I manage the full pipeline. Key Tools: Blender | Clo3D | Substance Painter | Unreal Engine | Adobe Illustrator & Photoshop

Professional Summary Experienced Virtual Chief Information Security Officer (vCISO) and cybersecurity expert with 25+ years in IT, including 20+ years dedicated to cybersecurity, network defense, and risk management. I help SMBs and fintechs build resilient security postures through strategic guidance, gap analysis, policy development, and hands-on technical execution — delivering enterprise-grade security without the overhead of a full-time CISO. Today my practice extends beyond traditional security into AI Security and LLM Red Teaming. I design defense-in-depth architectures for AI agents (Microsoft Copilot Studio + Azure AI), run adversarial testing against production LLMs (prompt injection, jailbreaks, PII exfiltration), and translate technical findings into executive risk reports aligned to the NIST AI RMF, OWASP Top 10 for LLM Applications, MITRE ATLAS, the EU AI Act, and GDPR. As a Prompt Engineer, I also build high-quality, context-aware, security-hardened prompts, with particular strength in Spanish-language AI content. I hold an MSc in Computer Engineering and have served international clients across multiple industries, making me a strong fit for LATAM, US, and global organizations that need both depth and clear communication. Core Competencies Strategic Security Leadership • vCISO services, security governance, risk assessments, audit remediation, and security roadmaps AI Security & LLM Red Teaming • Adversarial testing of LLM-based agents: prompt injection, jailbreak detection, PII protection, and multi-language attack-surface analysis • Defense-in-depth architectures for Copilot Studio agents: pre-LLM sanitization, semantic classification, persistent security logging, and human-in-the-loop (HITL) workflows • Executive risk reporting aligned to NIST AI RMF, GDPR, and emerging AI regulation Technical Cybersecurity • Network & cloud security architecture (AWS, Azure); vulnerability management; API & application security • Active Directory hardening; endpoint & SIEM (Sentinel, McAfee, QRadar); firewall & WAF configuration (Check Point, AWS WAF, Shield) Offensive Security • Penetration testing (web, mobile, internal, external); red teaming; threat modeling; OSINT • Kali Linux, Nessus, Qualys, Burp Suite, Metasploit Compliance & Documentation • ISO 27001 implementation, NIST CSF, PCI DSS, GDPR, HIPAA; policy & procedure writing; security awareness programs AI & Automation • Prompt engineering and LLM optimization (Spanish content); AI-powered threat detection; secure AI integration IT Operations & Support • Microsoft 365 security, Intune, Windows Server, Azure AD, Microsoft Purview & DLP; system hardening and patch management.Tools & Technologies Cloud & Security Platforms: AWS (WAF, Shield, Firewall Manager), Azure (Defender for Cloud, Sentinel, AI Content Safety, OpenAI), Microsoft 365 / Copilot Studio Networking & Defense: Check Point, Cisco IPS, Blue Coat, Citrix NetScaler Vulnerability & Testing: Nessus, Qualys, Kali Linux, Burp Suite, Metasploit Endpoint & Monitoring: Trend Micro, Cynet, McAfee SIEM, Microsoft Defender AI Security & Automation: Power Automate, Dataverse, GPT-4o, Python, Prompt Engineering, JSON Schema validation Compliance Frameworks: ISO 27001, NIST 800-53 / CSF, NIST AI RMF, PCI DSS, GDPR, HIPAA, EU AI Act, MITRE ATLAS, OWASP Top 10 for LLM Why Work With Me • Fractional CISO for SMBs: Enterprise-grade security strategy at a fraction of the cost of a full-time hire. • Full-cycle security services: From risk assessment through implementation and ongoing monitoring. • AI + Security synergy: I bridge traditional cybersecurity with modern LLM / AI workflows and AI-specific threat modeling. • Clear, actionable deliverables: Policies, reports, and architectures written plainly and aligned to your business goals. • Bilingual (Spanish & English): Ideal for LATAM, US, and global clients needing bilingual security support. Ideal Projects for Me • Securing and red-teaming AI agents and LLM-based applications (Copilot Studio, Azure AI) • ISO 27001 gap assessments and implementation planning • Interim or fractional CISO engagements for startups and fintechs • Penetration tests and red-team exercises • OSINT investigations and digital forensics • Custom AI prompts for secure, compliant Spanish-language content • Cloud security architecture design (AWS / Azure) • Security policies, incident-response plans, and risk-treatment plans

I'm eleectrical engineer in the programming and automation area. My skill are: Microsoft Visual Studio Programing PLC Programming AC and DC drives programming Motion systems for industry QA testing Control Process I actually work in automation company. I develop a lot of motion system with PLC and Drives. I also work as QA testing.

My name is Aldo Rivas, a Mechanical Engineer by profession, but during the confinement caused by the pandemic, I discovered my passion for software development. Since then, I have been in the world of programming. I have been fortunate to work with companies that have given me the opportunity to apply my skills in projects based on technologies such as React, JavaScript, and TypeScript. From creating user interfaces to implementing business logic, every line of code written in React has been a step towards my professional growth. I have strong React, NodeJS, JavaScript, TypeScript, CSS, HTML, Tailwind, WebPack, and Git skills.

I have worked as Software Test Manager for several companies working with distributed teams some of the resposabilities withing this charge is been the Formation of the QA department, selecting the most sutable software testing staff; Design test strategy, goals and objectives for manual and automated testing integratting into the software development flow with agile methodologies such as Scrum and Kanban. I have experience working on the Control and Monitoring of the testing process in different environments to guarantee correct accomplishment of the acceptance criteria related to a requirement. Also making Reports that allows to analyze data with the objective of developing continuous improvements in the QA process adapting it according to the results. I have experince with Test Rail, Xray for Test management and Jira, Click up, Asana, TargetProcess, Bitbucket and Trello as Project Management tools. I can give you added value to your project by using my knowledge, techniques and my detailed oriented personality.