Available to hire
I’m Bill Siwale, a software architect and AI integrations specialist with over 10 years of experience. I design and deploy production-grade AI and full-stack systems at scale, with a focus on microservices, event-driven architectures, and cloud-native platforms. I build robust, cost-efficient solutions for enterprise clients by integrating leading AI models (GPT-4o-mini, Gemini 2.5, Vertex AI), real-time data processing, and automation workflows. My work spans real-time meeting intelligence, content generation, and AI-powered workflows that turn complex business processes into self-running systems.
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Work Experience
Systems Engineer at Hytel
August 9, 2025 - PresentLead AI Systems Architect (Freelance / Consultant)
January 1, 2022 - PresentLed architecture and development of multiple high-stakes full-stack AI platforms for diverse clients, including industrial monitoring, conversational AI sales bots, blockchain-enabled infrastructure platforms, and enterprise education SaaS. Delivered end-to-end solutions on GCP using Vertex AI Vision and Gemini AI, Node.js, React, PostgreSQL, Firebase, and Stripe integrations. Spearheaded scalable monorepo architectures, secure multi-tenant systems, real-time data processing, and automated workflows improving client operational efficiency and sales automation.
Computer Systems Engineer at Riverside Farm Institute
December 31, 2023 - August 11, 2025Enhanced enterprise security by implementing integrated access control and time-attendance systems, reducing unauthorized facility access by 75% and improving payroll efficiency by 27%. Led critical system migrations and network CCTV installations with zero downtime.
Systems Developer & Engineer at Zongwe Crocodile Farms
December 31, 2018 - August 11, 2025Designed and launched a web-based health and production analytics platform using PHP, MySQL, and JavaScript, which increased operational productivity by 15% through data-driven insights.
Junior Systems Engineer at Maamba Collieries Mines
December 31, 2015 - August 11, 2025Maintained mission-critical SAP systems and Windows server infrastructure in a high-availability industrial environment, building a strong foundation in enterprise IT operations.
Lead AI Systems Architect at Freelance / Independent
January 1, 2022 - October 27, 2025Architected and deployed multiple full-stack AI platforms for diverse clients, guiding technical strategy, architecture, and production deployment. Notable projects included Cement Guard (industrial monitoring with real-time camera streams and inventory reconciliation), a multi-tenant monorepo (three TypeScript apps: React customer dashboard, admin HQ, Node.js backend with Cloud Functions), and a robust PostgreSQL schema for production runs and multi-location data. Also delivered autonomous sales chatbot CGU IT Spec Bot using Gemini 2.5 with Zoho CRM integration and multi-channel delivery, plus ChangeNet (blockchain-enabled infrastructure with token economy) and Auxilio (enterprise education SaaS) with real-time messaging and Stripe/mobile money payments.
Computer Systems Engineer at Riverside Farm Institute
December 31, 2023 - December 31, 2023Enhanced enterprise security with integrated access control and time-attendance systems, reducing unauthorized facility access by 75% and improving payroll efficiency by 27%. Led critical system migrations and network CCTV installations with zero downtime.
Systems Developer & Engineer at Zongwe Crocodile Farms
December 31, 2015 - December 31, 2015Designed and launched a web-based health and production analytics platform (PHP, MySQL, JavaScript) that increased operational productivity by 15% through data-driven insights.
Junior Systems Engineer at Maamba Collieries Mines
December 31, 2015 - December 31, 2015Maintained mission-critical SAP systems and Windows server infrastructure in a high-availability industrial environment, building a strong foundation in enterprise IT operations.
Chief Architect & Lead Developer at Qylon AI Automation Platform
January 1, 2023 - PresentLed the design and deployment of an 8-service microservices platform with API Gateway, Meeting Intelligence, Content Creation, Workflow Automation, Integration Management, User/Client Management, Notifications, and Analytics. Implemented event-driven coordination using Supabase Realtime, robust API routing with rate limiting and health checks, and strict multi-tenant data isolation via PostgreSQL Row-Level Security. Built a production-grade, cost-efficient platform achieving $0.25/hour operational cost through horizontal scaling and smart resource management. Engineered AI-powered meeting intelligence by processing real-time transcripts and integrating GPT-4o-mini for action-item extraction; automated bot deployment for Zoom, Google Meet, and Teams; created real-time analytics and engagement dashboards. Architected asynchronous processing for high-volume transcript tasks, implemented secure authentication, and comprehensive testing (TDD) and logging. Delivered a frontend dashboard, rea
Lead Full-Stack Architect & Developer at Auxilio Education Platform
January 1, 2023 - PresentMigrated backend from JavaScript to a TypeScript-based microservices architecture across 15+ services, with an API Gateway, 34+ routes, and 19+ controllers. Implemented monorepo via npm workspaces to coordinate 15+ services, shared packages, web, and mobile apps. Built a real-time Socket.IO layer with Redis for scalable communication, implemented JWT-based authentication, RBAC, and rate limiting. Migrated 70+ tables from MySQL/MariaDB to PostgreSQL and designed scalable data models for teachers, students, classes, curricula, assessments, and analytics. Delivered a mobile-first admin and teacher dashboards; integrated Stripe payments and mobile money for Zambia; delivered AI-assisted lesson planning features using Gemini/AI integration.
Lead AI Systems Architect at Freelance / Consultant
January 1, 2022 - December 31, 2023Cement Guard: Built an end-to-end industrial AI platform on GCP with real-time computer vision using Google Vertex AI Vision to count inventory streams and flag discrepancies; designed a multi-service monorepo (React frontend, Admin panel, Node.js backend with Cloud Functions) and a scalable PostgreSQL schema for production runs and multi-location data. CGU IT Spec Bot: Developed Gemini 2.5-based conversational sales agent integrated with Zoho CRM and multi-channel messaging to automate initial sales qualification, achieving ~90% automation. ChangeNet: Engineered a blockchain-enabled infrastructure platform with a token economy, multi-role access, and secure multi-tenant architecture.
Computer Systems Engineer at Riverside Farm Institute
January 1, 2019 - December 31, 2023Enhanced enterprise security by implementing integrated access control and time-attendance systems; led critical migrations and Windows server infrastructure upgrades with zero downtime; oversaw CCTV installations and security improvements across facilities.
Junior Systems Engineer at Maamba Collieries Mines
January 1, 2012 - December 31, 2015Maintained mission-critical SAP systems and Windows server infrastructure in a high-availability industrial environment, building a strong foundation in enterprise IT operations.
Lead AI Systems Architect (Freelance / Consultant) at Various Clients
January 1, 2022 - January 1, 2023Led strategy and implementation of AI platforms including Cement Guard (industrial monitoring with Vertex AI Vision), CGU IT Spec Bot (Gemini 2.5-based sales agent integrated with Zoho CRM), and ChangeNet (blockchain-enabled infrastructure).
Education
Advanced Diploma in Computer Systems Engineering at NIPA
January 1, 2009 - August 11, 2025Advanced Diploma in Computer Systems Engineering at NIPA
January 11, 2030 - January 1, 2009Google Data Analytics Professional Certificate at Google / Coursera
January 11, 2030 - October 27, 2025Cisco Certified Network Associate (CCNA) at Cisco
January 11, 2030 - October 27, 2025Advanced Diploma in Computer Systems Engineering at NIPA
January 1, 2009 - December 8, 2025Google Data Analytics Professional Certificate at Google Career Certificates
January 11, 2030 - December 8, 2025Cisco Certified Network Associate (CCNA) at Cisco
January 11, 2030 - December 8, 2025Advanced Diploma in Computer Systems Engineering at NIPA
January 1, 2009 - December 15, 2025Qualifications
Google Data Analytics Professional Certificate
January 11, 2030 - August 11, 2025Cisco Certified Network Associate (CCNA)
January 11, 2030 - August 11, 2025Diploma in Project Management
January 11, 2030 - August 11, 2025Diploma in Project Management
January 11, 2030 - October 27, 2025Google Data Analytics Professional Certificate
January 11, 2030 - October 27, 2025Cisco Certified Network Associate (CCNA)
January 11, 2030 - October 27, 2025Diploma in Project Management
January 11, 2030 - October 27, 2025Diploma in Project Management
January 11, 2030 - December 8, 2025Advanced Diploma in Computer Systems Engineering
January 1, 2009 - December 8, 2025Google Data Analytics Professional Certificate
January 11, 2030 - December 8, 2025Cisco Certified Network Associate (CCNA)
January 11, 2030 - December 8, 2025Diploma in Project Management
January 11, 2030 - December 8, 2025Google Data Analytics Professional Certificate
January 11, 2030 - December 15, 2025Cisco Certified Network Associate (CCNA)
January 11, 2030 - December 15, 2025Diploma in Project Management
January 11, 2030 - December 15, 2025Google Data Analytics Professional Certificate
January 11, 2030 - December 15, 2025Cisco Certified Network Associate (CCNA)
January 11, 2030 - December 15, 2025Diploma in Project Management
January 11, 2030 - December 15, 2025Industry Experience
Manufacturing, Software & Internet, Education, Financial Services, Agriculture & Mining, Professional Services, Media & Entertainment, Telecommunications
Qylon is an advanced AI automation platform that transforms manual business processes into intelligent, self-running systems. This platform captures meeting content, processes it through sophisticated AI workflows, and automatically generates business assets.
Key Features
Meeting Intelligence: Real-time transcription, speaker diarization, and action item extraction
Workflow Automation: State machine-based workflow execution with compensation logic
Security Framework: Comprehensive authentication, authorization, and API key management
Microservices Architecture: 8 independent services with clear boundaries
AI Integration: OpenAI GPT-4, Anthropic Claude 3, and Recall.ai integration
🏗️ Architecture Overview
Technology Stack
Frontend: React 18.2+ with Next.js 14+ and TypeScript 5.0+
Backend: Node.js 20+ with Express.js and Python 3.11+ with FastAPI
Databases: Supabase PostgreSQL (relational) and MongoDB (analytics)
Cloud: DigitalOcean App Platform with Supabase Backend-as-a-Service
AI Services: OpenAI GPT-4, Anthropic Claude 3, OpenAI Whisper
Monitoring: DigitalOcean Monitoring, Supabase Analytics, and custom dashboardsHire a Full Stack Developer
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