Emmanuel Sunday

Product-minded Senior Software Engineer with 5+ years of experience building and scaling full-stack, cloud-native applications. Strong in TypeScript (Node.js, React) and Python, with hands-on experience designing APIs, implementing workflow-driven systems, and deploying on AWS serverless infrastructure. Proven ability to own complex problem spaces end-to-end, deliver high-impact features, and build systems that improve operational efficiency.

Experienced across financial systems, e-commerce, HR platforms, and data-driven applications.

Software Developer & Head of IT - Prosperity Microfinance Bank

(2025-01)

• Own end-to-end delivery of internal financial systems and workflow automation tools, from product scoping and architecture to deployment and monitoring.
• Designed and implemented full-stack applications (TypeScript, Node.js, React, Python) used by internal teams, reducing manual processing by ~40–60%.
• Architected RESTful APIs and service integrations enabling seamless interaction between internal systems and third-party services.
• Built and deployed cloud-native solutions on AWS (Lambda, serverless databases), improving scalability and reducing infrastructure overhead.
• Designed workflow and approval systems with role-based access, supporting multi-step business processes.
• Led frontend development using React, Vue, TypeScript, Tailwind CSS, and Emotion.
• Established engineering standards (code reviews, modular architecture, testing discipline).
• Mentored developers and drove technical decision-making across systems.

Software Developer - Ekondo Microfinance Bank

(2023-01 - 2025-01)

• Designed and shipped backend systems and full-stack applications supporting banking operations.
• Built API-driven systems to automate workflows and improve processing speed.
• Developed responsive frontend interfaces using React.
• Collaborated with stakeholders to define and deliver scalable solutions.
• Conducted code reviews and mentored junior engineers.

Full-Stack Engineer | Automation & AI Solutions - Freelance (Upwork & Fiverr)

(2019-01 - 2023-01)

• Delivered full-stack solutions across multiple domains including e-commerce, HR systems, and workflow platforms.
• Automated processes using Python, reducing client workload by up to 70%.
• Designed scalable APIs and system integrations.
• Built frontend applications using React/Vue with modern UI frameworks.
• Contributed to AI model evaluation and prompt engineering projects.

B.Sc. - Computer Science - University of Uyo