Ernest Shongwe

Intermediate Software Engineer | Cloud-Native Systems | K8s | Distributed Systems | Fintech | ALX Africa Alumni |πŸ‡ΏπŸ‡¦

Randburg, Gauteng, South Africa

About

Cloud, Backend & Platform Engineer focused on building secure, scalable, cloud-native systems (AWS, Azure, Google Cloud Platform and Oracle Cloud) that support real production workloads. Strong ownership across backend architecture, APIs, databases, and platform reliability, with hands-on experience integrating AI and data-driven capabilities into backend systems to improve decision-making and operational outcomes. Core strengths β€’ Backend systems, APIs, database design β€’ Cloud infrastructure (AWS, Azure, GCP & OCI), Docker, Kubernetes, CI/CD β€’ Security, performance and production reliability Recent impact β€’ Built and operated systems processing 10,000+ transactions/month with >99% uptime β€’ Led CI/CD improvements increasing deployment efficiency by 85% β€’ Designed secure API platforms serving 650+ subscribers, 20+ admins and 10,000+ guest users with RBAC and audit controls I value clear ownership, thoughtful system design, and long-term scalability, and I enjoy working on systems where engineering quality directly impacts business outcomes.

Experience

  • Intermediate Backend Software Engineer at Popping
    Jun 2025 - Present Β· 1 yr 1 mo

  • Backend Software Engineer at Beqy.ai
    Nov 2024 - Jun 2025 Β· 8 mos

  • Software Engineering Resident & Fellow at Headstarter
    Jul 2024 - Feb 2025 Β· 8 mos

    ●​ Built 14+ machine learning and AI engineering projects; deployed 11 production-grade applications (TypeScript, AWS, Vercel and CI/CD), implemented LLM-chaining, hyperparameter tuning and fine-tuning on multiple models leading to reduced inference latency by 35% and 18% accuracy improvement ●​ Delivered 5 AI-powered SaaS products with full dev/production environments and payment integrations (Stripe), serving an average of 1k users each​

  • Full Stack Software Engineer & DevOps Engineer at KalKey
    Apr 2022 - Nov 2024 Β· 2 yrs 8 mos

    Led end-to-end development and infrastructure for 12+ enterprise applications, combining full-stack engineering with DevOps and cloud architecture across fintech, e-commerce and SaaS sectors. Design and delivery of backend systems using Java (Spring Boot), C#/.NET Core, PHP (Laravel), Python (Django), Ruby on Rails, React, Next.js, Vue.js, Angular, AWS, Azure, Docker, Kubernetes and CI/CD (ArgoCD, Git Hub actions, Git Lab). Also led mobile platform development (React Native & Expo). ●​ Delivered and maintained high-availability full-stack platforms across Java, .NET, Python and TypeScript, achieving 99.9% uptime and 40% performance gains through DB indexing and CDN optimisation ●​ Automated 4+ CI/CD pipelines and 7+ serverless workflows (AWS Lambda), cutting setup time by 30%, operational downtime by 40% and MTTR by 50% via Datadog and Grafana observability ●​ Embedded AI and LLM capabilities into production applications, boosting response accuracy by 20% and user engagement by 50%

  • Farm Supervisor at SKN Capital Investments
    Jan 2020 - Apr 2022 Β· 2 yrs 4 mos

    SKN Capital Investments / Fraser Control Solutions (Pty) Ltd 🌾 Impact and Expertise β€’ Production Scaling: Efficiently managed diverse livestock operations, maintaining high productivity across multiple species, demonstrating mastery in breeding cycles and yield maximization β€’ Infrastructure Development: Designed state-of-the-art livestock housing facilities that improved animal welfare, streamlined operations, and increased production capacity β€’ Health & Welfare Innovation: Integrated synchronized health management protocols to ensure peak livestock health, minimizing disease outbreaks and improving overall farm output