Experienced FinTech Software Engineer specializing in secure payment systems and blockchain technology. Proven track record of building high-performance backend services with Go and Python. Passionate about leveraging cutting-edge technology to innovate in the financial sector.

• 🔐 Secure payment processing systems & PCI DSS compliance
• ⚡ High-performance microservices in Go
• 🐍 Python-based ML systems for fraud detection
• ⛓️ Blockchain development (Celo, Solidity)
• 🚀 Cloud-native architectures & DevOps

typeExpertisestruct {Backend     []stringCloud       []stringBlockchain  []stringSecurity    []string}varskills=Expertise{Backend: []string{"Golang","Python","Microservices","RESTful APIs","PostgreSQL","MongoDB",    },Cloud: []string{"AWS Lambda","Docker","Kubernetes","CI/CD",    },Blockchain: []string{"Celo","Solidity","Smart Contracts","Web3.js",    },Security: []string{"PCI DSS","OAuth 2.0","JWT","Secure Payment Systems",    },}

• ⚡ Improved system performance by 40% through code optimization
• 🚀 Reduced deployment time by 60% with automated CI/CD pipelines
• 🤖 Enhanced fraud detection accuracy by 30% using ML models
• 🏆 Multiple Hackathon Wins:
  • Africa Winner - Coca Cola Generation Z Hackathon
  • Winner - Celo Hackathon 2024
  • 3rd Place - Geekulcha and Centre for Public Service Innovation

• Scalable payment system with ML-powered fraud detection
• Tech: Golang, TensorFlow, PostgreSQL, Docker
• PCI DSS compliant

• Decentralized marketplace on Celo blockchain
• Secure vendor-to-customer food sales platform
• Tech: Solidity, React, Node.js, Celo SDK

• Optimized smart contracts for efficient transactions
• Tech: Solidity, React, Web3.js, Hardhat

Intermediate Software Engineer @ APS Holdings
Century City (Jan 2025 – Present)

Junior Software Engineer @ APS Holdings
Century City (Jan 2024 – Jan 2025)

• 📧 Email:dzidzaimaenza@gmail.com
• 💼 LinkedIn:Onesmus Maenzanise
• 📱 Phone: (084) 470-4641

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