Yoweli Kachala

- Designed multi-tenant backend services with strict data isolation and high availability - Optimised complex transactional workflows that significantly improve system throughput - Architected scalable APIs enabling international expansion and third-party integrations Rescued 3 stalled module developments that were given to at least 3 developers(each) over the years in less than 1 year.

- Built high-performance backend for enterprise logistics, inventory, and financial workflows - Delivered seamless integration across operational & financial systems (100% data consistency) - Created reusable architectural blueprints, accelerating future system development

- Architected subscription & recurring billing systems managing high-volume financial operations - Ensured 100% transactional consistency in financial systems - Standardised CI/CD pipelines that improved release speed and production stability

- Designed backend for national pharmacy & healthcare systems - Built secure, compliant data synchronisation pipelines - Maintained high data integrity and regulatory compliance

- Extended WHMCS billing platform with custom modules automating financial workflows - Integrated secure payment gateways with compliance and reliability - Reduced billing errors & operational overhead

- Architected real-time vehicle tracking and fleet backend services - Overhauled CI/CD pipelines that reduced deployment failures by 70%

- Delivered 7+ enterprise-scale backend systems across telecom and public sectors (UK NHS) - Led architecture for high-compliance systems for tier-1 clients (Samsung, MTN, Cell C)

- Re-architected a high-throughput messaging platform and reduced latency 88% - Automated failure handling → operational costs cut 25%

- Rescued stalled tender processing system (5-year delay) and had a functional MVP in less than 12 months - Designed & deployed national-scale payroll, HR, and B2B platforms for the Government of Malawi