Senior Software Engineer / AI Automation Engineer Vancouver, Canada · Remote-friendly Go · Python · Distributed Systems · AI Automation

I'm a backend-focused engineer with ~10 years of experience building scalable, production-grade systems and AI-powered SaaS products.

I specialize in:

• Golang-first backend systems (microservices, data pipelines, infra tooling)
• AI & automation with LLMs (LangChain-Go, n8n, Ollama)
• Building Micro-SaaS & self-hosted tools from 0 to production to monetization
• Client-facing engineering — I like talking to customers, and I understand marketing and sales, not just the code

• Languages: Go, Python, JavaScript / TypeScript
• Backend & Data: RiverQueue, microservices, REST & GraphQL, PostgreSQL, Cassandra, Redis, Kafka, ETL
• AI / Automation: LangChain-Go, n8n, Ollama, prompt engineering, AI workflows & agents
• Infra / DevOps: Docker, Kubernetes, CI/CD, Cloud (AWS, GCP, Azure), Terraform, Ansible

• TrialAbuse.com — Real-time fraud detection SaaS stopping free trial abuse and bonus fraud syndicates, with a 150+ signal detection engine delivering verdicts in under 70ms. (Go, Kubernetes, GCP, Redis, PostgreSQL, Stripe)
• PropCopy.ai — AI-powered SaaS generating SEO-optimized property descriptions from photos. (Go, HTMX, Multimodal LLM, Stripe)
• PromptRefiner — High-performance SaaS for AI prompt optimization. (Go, HTMX, LangChain-Go, Gemma)
• Scrapions — Decentralized web scraping platform. (libp2p, Ethereum, Headless Chrome)
• Nutmeg — Self-hosted stats tracker for pickup soccer groups, with an AI sports desk that writes satirical match reports and player roasts from real stats. (Go, Echo, Templ, HTMX, PostgreSQL, RiverQueue)
• EzAuth — Simple, embeddable Go authentication library: email/password, JWT sessions with refresh rotation, OAuth2, magic links, and multi-database support.
• StripeFlow — Pluggable Go library that wires the Stripe Customer Portal into any app: billing portal, webhooks, subscription state, and usage tracking.

• Clean, readable, boring (in a good way) code
• Strong system design fundamentals
• Developer experience
• Products that actually ship and make money
• Using AI as a force multiplier, not a gimmick
• Talking to customers, not hiding behind the codebase
• Understanding the business: marketing and sales included

• LinkedIn: https://linkedin.com/in/josuekouka
• GitHub: https://github.com/josuebrunel

"Make it work. Make it right. Make it scale."