Hi, I’m Bill Siwale, a mid-career software architect with over 10 years of experience, including 4 years coding, focusing on AI and full-stack systems. I specialize in building production-grade solutions on Google Cloud Platform, Vertex AI for computer vision, and Gemini for conversational AI, delivering scalable architectures for industrial IoT, AI-driven sales automation, and enterprise SaaS. I thrive on turning ideas into reliable, testable, monorepo-based products and leading teams from concept to launch. I enjoy combining backend systems (Node.js, TypeScript, PostgreSQL) with modern frontend stacks (React, Next.js) and robust DevOps practices (TDD, CI/CD). I value collaboration and designing secure, multi-tenant architectures that scale across locations and clients.

Bill Siwale

Hi, I’m Bill Siwale, a mid-career software architect with over 10 years of experience, including 4 years coding, focusing on AI and full-stack systems. I specialize in building production-grade solutions on Google Cloud Platform, Vertex AI for computer vision, and Gemini for conversational AI, delivering scalable architectures for industrial IoT, AI-driven sales automation, and enterprise SaaS. I thrive on turning ideas into reliable, testable, monorepo-based products and leading teams from concept to launch. I enjoy combining backend systems (Node.js, TypeScript, PostgreSQL) with modern frontend stacks (React, Next.js) and robust DevOps practices (TDD, CI/CD). I value collaboration and designing secure, multi-tenant architectures that scale across locations and clients.

Available to hire

Hi, I’m Bill Siwale, a mid-career software architect with over 10 years of experience, including 4 years coding, focusing on AI and full-stack systems. I specialize in building production-grade solutions on Google Cloud Platform, Vertex AI for computer vision, and Gemini for conversational AI, delivering scalable architectures for industrial IoT, AI-driven sales automation, and enterprise SaaS. I thrive on turning ideas into reliable, testable, monorepo-based products and leading teams from concept to launch.

I enjoy combining backend systems (Node.js, TypeScript, PostgreSQL) with modern frontend stacks (React, Next.js) and robust DevOps practices (TDD, CI/CD). I value collaboration and designing secure, multi-tenant architectures that scale across locations and clients.

See more

Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
See more

Language

Work Experience

Systems Engineer at Hytel
August 9, 2025 - Present
Lead AI Systems Architect (Freelance / Consultant)
January 1, 2022 - Present
Led 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, 2025
Enhanced 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, 2025
Designed 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, 2025
Maintained 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, 2025
Architected 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, 2023
Enhanced 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, 2015
Designed 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, 2015
Maintained mission-critical SAP systems and Windows server infrastructure in a high-availability industrial environment, building a strong foundation in enterprise IT operations.

Education

Advanced Diploma in Computer Systems Engineering at NIPA
January 1, 2009 - August 11, 2025
Advanced Diploma in Computer Systems Engineering at NIPA
January 11, 2030 - January 1, 2009
Google Data Analytics Professional Certificate at Google / Coursera
January 11, 2030 - October 27, 2025
Cisco Certified Network Associate (CCNA) at Cisco
January 11, 2030 - October 27, 2025

Qualifications

Google Data Analytics Professional Certificate
January 11, 2030 - August 11, 2025
Cisco Certified Network Associate (CCNA)
January 11, 2030 - August 11, 2025
Diploma in Project Management
January 11, 2030 - August 11, 2025
Diploma in Project Management
January 11, 2030 - October 27, 2025
Google Data Analytics Professional Certificate
January 11, 2030 - October 27, 2025
Cisco Certified Network Associate (CCNA)
January 11, 2030 - October 27, 2025
Diploma in Project Management
January 11, 2030 - October 27, 2025

Industry Experience

Manufacturing, Software & Internet, Education, Financial Services, Agriculture & Mining, Professional Services, Media & Entertainment