Who is Avi Santoso?

Last image of me from my camera roll

Hey there!

Who are you?

I’m Avi, a software engineer and AI consultant. I’ve spent the last eight years shipping software across enterprise and startup environments, and have worked primarily in the resources sector. These days I work with a small team of experts, partnering with companies that need AI features to behave reliably in the real world. My focus is practical engineering, and outcome driven development.

What is this website about?

This site is about the hard work behind AI that actually holds up in production. Non-deterministic systems fail differently than normal software, so you need new habits around evaluation, reliability, safety, and maintenance. I write about the patterns, tradeoffs, and rollout strategies that reduce surprises once real users show up. If you've ever said “but it worked yesterday,” you're in the right place.

What do you build?

I build and help teams build production AI systems, especially voice AI, LLM-powered workflows, and full-stack applications with AI embedded in the product. This includes evaluation pipelines, retrieval systems, routing, guardrails, and fine-tuning. I care about latency, cost, failure modes, and operational stability and aim to get a system you can measure, debug, and improve.

Why should I read your content?

Because it's written from the perspective of someone trying to ship and maintain AI features, not just talk about the latest models and hype. I focus on implementation details, architecture decisions, and the “gotchas” that show up after launch: regressions, inconsistent behaviour, edge cases, and unclear quality. Most posts aim to give you one concrete idea you can apply immediately. The goal is fewer guesses and more repeatable engineering.

How can we work together?

I take on select consulting engagements focused on AI implementation strategy and enterprise-grade architecture, typically scoped around an outcome like shipping a reliable feature or standing up evals. I work with your team to design the approach, de-risk the rollout, and make sure the system stays maintainable as it evolves. If you want to discuss a project, email me directly with a short description of what you are building and what “good” looks like. If you're just exploring, subscribe to the newsletter and join the conversation in the comments.