Joy Missoy

Full Stack Software Engineer with 3+ years of experience who builds scalable web applications with React.js, Python Flask and PostgreSQL. Experienced in designing responsive interfaces, building secure REST APIs, implementing authentication and deploying production-ready applications. Delivers clean, maintainable code in Agile teams. Comfortable working directly with stakeholders to turn business needs into working software.

Software Engineer - Teraipi Web Services (TWS)

(2026-07)

• Design, build and maintain responsive web applications using React.js, JavaScript, Tailwind CSS and Vite.
• Develop backend systems in Python (Flask/Django), including business logic, data validation and API endpoints.
• Build and integrate RESTful APIs between frontend applications and backend services.
• Design relational databases (PostgreSQL, SQLite), covering schema design, optimization and data modeling.
• Implement authentication and authorization using JWT, Firebase Authentication and role-based access control.
• Build custom business applications, including e-commerce platforms, booking systems, ERP and CRM solutions, and workflow automation tools.
• Gather requirements from clients and stakeholders, run solution demonstrations and support project planning.
• Deploy and maintain applications on Render, Netlify and AWS, and configure CI/CD workflows.
• Test, debug and optimize applications for reliability and scalability.
• Manage code with Git and GitHub (branching, pull requests, collaborative workflows).
• Write technical documentation: API docs, architecture diagrams, user guides and deployment procedures.
• Provide website maintenance, security updates, bug fixes and ongoing support.

IT Officer / Full Stack Web Developer - Transwork Supplies and Construction

(2024-01 - 2025-08)

• Developed and maintained responsive web applications using React.js and modern JavaScript.
• Built backend APIs with Python Flask and integrated them with frontend applications.
• Designed and managed PostgreSQL and SQLite databases, and built CRUD functionality for business systems.
• Implemented secure authentication and authorization.
• Optimized application performance and user experience.
• Handled software maintenance, troubleshooting and issue resolution.
• Worked with stakeholders to gather requirements and delivered solutions using Git and GitHub.

Web Developer Intern - Ziprof Technologies

(2023-03 - 2023-09)

• Developed responsive websites and customized WordPress sites.
• Assisted with frontend work in HTML, CSS, JavaScript and React.
• Supported backend integration and API testing.
• Assisted with deployment, hosting configuration and domain management.
• Tested and debugged applications and supported clients during deployment.

Software Maintenance Attachee - Cosmopolitan Sacco

(2021-03 - 2021-08)

• Supported software maintenance and system upgrades.
• Troubleshot hardware, software and network issues.
• Took part in system testing and quality assurance.
• Maintained IT infrastructure, documented technical issues, and supported users with installations.

Bachelor of Science - Computer Science - Chuka University (2017 - 2021)