Senior Software Systems Developer

Mayibongwe Sinyonde

Harare, Zimbabwe

263-***-***-***

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Senior Software & Systems Developer Backend & Frontend Developer Data Engineering

Professional Summary

Experienced Software and Systems Developer with over 5 years in full-stack development, backend services, and data engineering. Proficient in Python (Flask), JavaScript, SQL, and modern frameworks with strong understanding of system architecture, database optimization, and API integration. Adept at building scalable applications, debugging complex systems, and working in Agile/Scrum environments. Skilled in collaboration and committed to continuous learning and high-quality code delivery.

Core Competencies

Full-Stack Software Development, Python (Flask) & JavaScript Frameworks, SQL & Database Management, RESTful APIs & JSON/XML, SSIS & Power BI Integration, Agile & Scrum Methodologies, Unit & Integration Testing, Git Version Control, System Debugging & Optimization, Big Data (Hadoop), MDX Queries

Professional Experience

Senior Software Developer

CRAFT TECH Solutions, Harare, Zimbabwe

May 2021 – Present

- Lead development of scalable web applications using Python (Flask) and JavaScript frameworks.

- Designed and maintained REST APIs and backend services.

- Collaborated with front-end developers to implement responsive user interfaces.

- Conducted unit and integration testing to ensure code quality.

- Documented system architecture and codebase for team use.

- Participated in Agile sprint planning, reviews, and stand-up meetings.

- Automated deployment processes and managed bug tracking with Git.

Software & Systems Developer

NextGen Technologies, Bulawayo, Zimbabwe

February 2019 – April 2021

- Developed client-facing web applications using JavaScript (React) and backend services with Flask.

- Wrote complex SQL queries and optimized database performance.

- Integrated external APIs and ensured data handling through JSON/XML protocols.

- Maintained system documentation and conducted internal training sessions.

- Worked on Power BI dashboards and ETL processes using SSIS.

- Engaged in code reviews and refactoring using SOLID principles.

Education

Bachelor of Science in Computer Science

National University of Science and Technology (NUST), Zimbabwe

Graduated: 2023

Certifications

Microsoft Certified: Azure Developer Associate

Certified Python Developer – PCEP

Git & GitHub for Developers – Coursera

Data Engineering with Python – DataCamp

Technical Skills

Languages: Python, JavaScript, SQL, HTML, CSS

Frameworks: Flask, Django, React, AngularJS

Databases: PostgreSQL, MySQL, SQL Server

Tools: Git, Docker, Power BI, SSIS

DevOps: CI/CD Pipelines, Bash Scripting, API Testing (Postman)

Selected Projects

- Inventory Management System: Designed a multi-user web platform with real-time updates, using Flask and PostgreSQL.

- BI Dashboard for Financial Data: Developed Power BI dashboards connected to SQL Server via SSIS pipelines.

- API Gateway for Client Integration: Created and maintained a REST API with JWT authentication and role-based access.

References

Available upon request.

Contact this candidate