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— Selected Work

Problems solved.
Systems built.

— Infrastructure

Self-Hosted Infrastructure Migration: Cloud to Hetzner

SaaS / Technology
1 week
DockerNginxGunicornPostgreSQLCloudflareHetzner

Migrated a 3-service Django application from AWS to Hetzner, reducing monthly infrastructure costs by 74% with zero downtime and improved performance.

— Outcome

74% cost reduction — from $340 to $89/month (Hetzner + Cloudflare + backups). P95 response time improved by 30% due to lower network latency. System has run without incident for 8 months.

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— AI / Automation

Automation Infrastructure for a Professional Services Firm

Professional Services
2 weeks
n8nStripeHubSpot APIResendPostgreSQL

Connected CRM, invoicing, and email into a single automated workflow — eliminating 15 hours of manual data entry per week and reducing invoice-to-payment time by 40%.

— Outcome

15 hours/week recovered. Invoice-to-payment time reduced from 22 days to 13 days. Zero missed follow-ups since deployment.

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— AI / Automation

AI Customer Service Agent for an E-Commerce Platform

E-Commerce / Retail
4 weeks
PythonClaude APIWhatsApp Business APIDjangoPostgreSQL

Deployed a multi-channel AI agent handling order status queries, return requests, and product questions across WhatsApp and web chat — processing 500+ conversations daily.

— Outcome

73% of queries resolved without human intervention. Average response time dropped from 4 hours to 90 seconds. Customer service headcount held flat while order volume grew 60%.

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— Payment integration

M-Pesa Payment Infrastructure for a Logistics Platform

Logistics & Supply Chain
3 weeks
DjangoCeleryPostgreSQLM-Pesa Daraja APIRedis

Built a complete M-Pesa STK Push and B2C payment system for a last-mile logistics platform, handling driver payouts, customer payments, and automated reconciliation.

— Outcome

98% reduction in payment processing time. Reconciliation dropped from 8 hours to 12 minutes. Driver complaints about payment delays dropped to zero within the first month.

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