Sandro da Silva

Background

About Sandro da Silva

Senior Software Engineer with 10+ years of experience building, validating, and scaling distributed systems across frontend and backend environments. Strong background in JavaScript/TypeScript and Java ecosystems, with hands-on expertise developing robust services, automation frameworks, and developer tooling in cloud-native, microservices-based architectures. Experienced in designing reliable systems end-to-end, from implementation to validation and observability. Proficient with technologies including Node.js, Python, Java (Spring Boot), Playwright, and modern CI/CD pipelines (GitHub Actions, GitLab CI, Jenkins). Comfortable working across the stack—debugging production issues using logs and metrics, validating APIs (REST/GraphQL), and ensuring data integrity at the system level. Strong experience with AWS, Docker, Kubernetes, and containerized environments, as well as performance and load testing using tools like k6. Brings a pragmatic approach to quality engineering, test architecture, and system reliability, with deep experience in automation strategy, risk-based validation, and reducing flakiness in high-scale systems. Actively leverages AI-assisted development tools (ChatGPT, Copilot, Claude) to accelerate development, generate edge cases, and validate non-deterministic systems, including LLM-based applications. Also experienced in application and network security, including web penetration testing, source code vulnerability analysis, and secure development practices. Combines engineering, security, and quality perspectives to build resilient, secure, and maintainable systems. Focused on delivering scalable, high-performing software and enabling teams to move fast with confidence through strong engineering practices, automation, and continuous improvement.Core Competencies:Test Automation Architecture (UI + API + Backend)Python / Bash/ Go / Java / TypeScript / JavaScript TensorFlow, PyTorch, Scikit-learnMicroservices & Distributed SystemsAI/LLM Testing & ValidationRisk-Based Testing & Quality StrategyDebugging & Root Cause AnalysisPrompt Engineering & Model SteeringOther skills I have. Web application penetration testing. Network penetration testing. Source code vulnerability analysisMy clients:• NAV• Fylkesnemndene • Brønnøysundregistrene. Buypass. Norsk TippingSome of my professional certifications. Microsoft Certified: Azure Security Engineer Associate ( AZ-500 ). Microsoft Certified: Azure AI Fundamentals• ISTQB Advanced Level Security Tester• ISTQB Certified Tester Foundation level