David Chalwe

Software Engineer | Data Analyst (Msc. Computer Science, Bsc. Mathematics and Computer Science)

Lusaka Province, Zambia

About

Technology Leader | Software Engineer | Solutions Architect 👨🏽‍💻 Born in Lusaka, Zambia, I hold a Bachelor’s degree in Mathematics & Computer Science from the People’s Friendship University of Russia (2019) and a Master’s degree in Computer Science from the University of Zambia (2024) 👨🏽‍🎓. I’m a software engineer with experience across public-sector revenue systems, central banking, and commercial banking, working on enterprise applications, data platforms, integrations, and secure digital solutions in highly regulated environments. Over the years, I’ve contributed to national-scale systems at the Zambia Metrology Agency(ZMA), Zambia Revenue Authority (ZRA), the central Bank of Zambia (BoZ), and I currently serve at Zanaco as Backend Development Senior Specialist. 🏛️ ZRA – National Revenue Systems: Supported and developed core domestic taxation platforms, ensuring availability, security, and data correctness for systems responsible for billions in annual national revenue, and contributing to taxpayer compliance analytics and National Budget datasets 📈💰. 🏦 Central Bank (BoZ): Operated at an assistant-managerial level, contributing to the optimization of enterprise ETL and data-warehouse platforms supporting prudential supervision and regulatory reporting, and leading the design of an AI-enabled chatbot for issue reporting across regulated financial institutions 🤖📊. 🚀 Zanaco – Innovations & Solutions: Currently serving as Backend Development Senior Specialist (Assistant Head), leading the planning, design, and delivery of enterprise backend solutions, shaping the Bank’s innovation and IT governance direction, and working with cross-functional teams to deliver secure, scalable solutions from concept to production 🔐⚙️. 👥 Leadership & Governance: Progressively assumed technical and people-leadership responsibilities, including mentoring developers, guiding architectural decisions, contributing to IT governance, and enforcing security-by-design and regulatory alignment across systems 🛡️🏗️. I’m naturally curious and growth-oriented, and I enjoy expanding into new domains ☁️. Feel free to reach out if you’d like to connect around enterprise engineering, innovation in regulated environments, cloud architectures, or—when work is done—basketball 🏀 (NBA & EuroLeague 😅).

Experience

  • Backend Development Senior Specialist (Assistant Head – Innovation & Solutions) at Zambia National Commercial Bank (Zanaco) PLC
    Oct 2025 - Present · 10 mos

    I serve within the Innovation & Solutions function, where I am responsible for planning, designing, and delivering enterprise-grade backend solutions that support Zanaco’s strategic, operational, and innovation objectives. My role blends hands-on backend engineering leadership, solution architecture, IT governance alignment, and cross-functional delivery, contributing directly to the Bank’s innovation roadmap and modernization agenda. Key Responsibilities & Impact: - Lead the planning, design, and development of backend systems and integrations supporting digital banking, enterprise applications, and innovation initiatives. - Act as a key technical stakeholder shaping Zanaco’s innovation strategy and IT governance direction, ensuring alignment with regulatory, security, and enterprise architecture standards. - Translate business, operational, and customer needs into scalable, secure, and maintainable technical solutions.

  • Software Engineer – Application Development & Support (Assistant Manager) at Bank of Zambia
    May 2025 - Oct 2025 · 6 mos

    I served within the Application Development & Support Unit, operating at an assistant-managerial level, with responsibilities spanning hands-on software engineering, technical leadership, architecture input, and strategic alignment of enterprise systems supporting the Central Bank’s regulatory and supervisory mandate. Key Responsibilities & Contributions: Contributed to the redesign, cleanup, and optimization of ETL pipelines and complex SQL/PL-SQL procedures underpinning the Bank’s enterprise data warehouse, improving performance, maintainability, and data reliability. Supported data-warehouse governance initiatives, including: - Standardization of transformation logic - Reduction of technical debt in legacy procedures - Improved traceability and auditability of regulatory datasets Worked with high-impact analytical datasets used for: - Prudential supervision - Financial-sector oversight - Institutional and macro-economic reporting Led the design and development of an AI-driven automated chatbot to streamline issue reporting, service requests, and operational support across all BoZ-regulated financial institutions. - Defined use cases, workflows, escalation logic, and integration points - Ensured alignment with regulatory, security, and data-governance requirements Participated in strategic discussions shaping the Bank’s IT modernization direction, particularly around data platforms, automation, AI enablement, and application support models.

  • Zambia Revenue Authority (ZRA) (On-site)
    • Senior Analyst Programmer | Senior Software Developer
      Oct 2024 - May 2025 · 8 mos

      While serving as a Senior Software Developer, I continued hands-on technical delivery while taking on broader leadership, governance, and strategic responsibilities within the organization. Key Responsibilities & Contributions: Served as lead developer and support contact on multiple Domestic Tax systems, owning design decisions, implementation quality, and production readiness. Planned and coordinated system upgrades, patches, and controlled releases, ensuring comprehensive testing and minimal service disruption. Provided technical supervision and mentorship to developers and analysts, including task allocation, code reviews, and operational guidance. Took increased responsibility for IT governance and security alignment, including: - Secure coding and deployment practices. - SSL/TLS certificate management. - Secure third-party organisations and inter-system integrations. Contributed to strategic alignment of the unit’s work with ZRA’s broader ICT and institutional objectives. Supported project planning, prioritization, and delivery oversight, ensuring solutions were sustainable, compliant, and fit for national-scale use. Served as a technical reference point for complex incidents, architectural decisions, and cross-team coordination.

    • Analyst Programmer | Software Developer
      Mar 2021 - Sep 2024 · 3 yrs 7 mos

      I progressed into an Analyst Programmer role, forming the core of my tenure at ZRA, where I worked across systems development, platform support, data analytics, and project delivery within the Domestic Taxation environment. Key Responsibilities & Contributions: Supported and enhanced core national tax administration platforms, including TaxOnline, TaxOnApp, TaxOnPhone, the Taxpayer Invoice Management System (Zambia POS), Integrated Payments System (IPS), and Reconciliation Module systems. Owned day-to-day stability, availability, and performance of multiple production systems supporting taxpayer registration, filing, invoicing, payments, and revenue reconciliation. Led incident investigation and root-cause analysis for system failures and data discrepancies with direct revenue and compliance impact. Played a key role in integrated payments systems management, supporting onboarding and sustained integration of banks, payment service providers, and third-party corporate systems. Actively participated in project-based development work, delivering new features, system enhancements, and fixes aligned to evolving tax policy and operational requirements. Delivered advanced analytical datasets and reports used for: - Nationwide revenue collection monitoring - Taxpayer compliance analysis - Inputs into National Budget preparation and fiscal planning - Ensured accuracy, completeness, and integrity of high-impact national datasets used internally and externally. Worked closely with business users and policy teams to translate functional requirements into technical solutions.

    • Temp Analyst Programmer
      Oct 2020 - Mar 2021 · 6 mos

      I joined ZRA in a hands-on technical capacity, focusing on application development and production incident support for core domestic taxation systems. Key Focus & Contributions: Worked primarily on TaxOnline 2 and Reconciliation systems, supporting both development activities and live production environments. Assisted in investigation and resolution of production incidents, including system errors and data inconsistencies affecting taxpayer services and revenue flows. Supported bug fixes, module enhancements, and validation of corrective changes prior to deployment. Gained early exposure to mission-critical national revenue systems, operational controls, and public-sector system governance requirements. Built a strong foundation in Oracle-based systems, Java enterprise applications, and live environment support.

  • System Software Developer at Synergy Tracking Solutions
    May 2019 - Sep 2020 · 1 yr 5 mos

    I worked as System Developer at Synergy Tracking Solutions. I joined the company as a junior analyst, transitioned to systems developer and finally senior developer. I worked on several projects including but not limited to: Motor vehicle tracking system development, Dynamic website development, Distributed system development, Advanced workflow systems development, etc. During my tenure, I most notably operated as vice lead-programmer on the project to develop the Zambia Metrology Agency’s national workflow system. The system is currently used to service and track Zambia’s standardized weights and measures compliance across all fuel stations, business certified weighing scales, as well as all instruments that are mandated by law to be standardized. I worked extensively with several frameworks and advanced my skills in systems integration, developing large scale systems and backend development of microservice asynchronous processing systems. Once development of the system was successfully completed. I also worked with users for several months providing support and patch fixes to allow for a robust system handover and continuous application enhancements. Main Technologies Used: • HTML | MVC | C# | .NET | JavaScript | React | MySQL | WordPress | Stimulsoft

  • Telemarketer at Doctors Network
    Sep 2018 - Feb 2019 · 6 mos

    I worked as a telemarketer for the doctor's network for a few months during my study at the People's Friendship University in Moscow. During which time I learned to work in a unit of combined efforts and collaboration. This skill has proved essential to my development over my short career.