Kagan Demirhindi

Product experience platform that helps companies make product intelligence actionable at speed and scale.

• Core engineer on Leo, Pendo’s agent: built and shipped the supervisor orchestrating quantitative, qualitative, knowledge and data-synthesis subagents, plus 8 production agentic workflows. 192 merged PRs in first 9 months.

• Built Pendo’s agent evaluation platform from scratch: LLM-as-a-Judge with failure taxonomies and levelled test sets, multi-run flake resistance, LangSmith trace integration, and a multi-backend comparison harness (API, MCP, Claude SDK, LangGraph, Slack/Teams) with a web UI used by engineers and PMs. Adopted into company infrastructure.

• Led Leo’s migration from OpenAI to Gemini across the supervisor and all subagents: staged rollouts behind flags, streaming thinking output, full decommission of legacy paths. Shipped region-aware model routing and localization for Pendo’s Japan launch.

• Own agent reliability in production: hypothesis-driven debugging via traces, guardrails against fabricated data, tool-contract and context-window fixes.

• Ran internal AI trainings, onboarded teams starting to work in AI and regularly joined customer calls to feed user context back into product and agent decisions.

The only project management platform built specifically for client work.

• Worked on AI features from ideation to production, shipped AI-generated project setups that doubled onboarding completion rates.

• Built AI Forecasting using TinyTimeMixer and Prophet, self-hosted on AWS.

• Built production features with Vue.js, Tailwind CSS and Go. Used LaunchDarkly feature flags for safe, incremental rollouts.

• Ran data-driven experiments to optimize KPIs and drive user growth using Pendo, HubSpot and Hotjar.

AI-powered t-shirt design and print-on-demand web app. Built from scratch, shipped to production.

• Built an AI product from idea to deployed app. Vue, Vite, Nuxt 3 on Cloudflare Pages with SSR. Integrated Stable Diffusion API for designs, Stripe for payments, Cloudflare R2 for storage.

• Learned fast by shipping. The project validated technical feasibility but hit payment processing issues during customer validation. Demo still available at looksounique.com.

London-based fintech startup. ePOS app that turns tablets and smartphones into powerful cash registers.

• Small team, high autonomy. Worked directly with CEO and CTO to define the product. Learned to be outcome-focused and ship fast.

• Built Go microservices with gRPC. Dockerized and deployed on Google Kubernetes Engine.

• Integrated with partner bank API to automate merchant onboarding, reduced time from contract to first transaction to just hours.

• Shipped a React + TypeScript mobile app using Ionic and Capacitor. Built custom Capacitor plugins for native SDK access.

Software consultancy in Izmir, Turkey. Strong culture of learning and exploring new technologies.

• Shipped multiple projects as an intern: product catalog app, activity monitoring software and data pipelines. Learned by building, not just reading.

• Built microservices with Java + Micronaut, PostgreSQL, GraphQL. Containerized with Docker and Docker Swarm.

• Built web scrapers with Scrapy-Splash to extract gigabytes of data daily. Prepared data for ML training using Python.

• Data visualization and analysis with Pandas, Elasticsearch, Kibana. Automated deployments with Bash.

“How to Train Your (Coding) Agent”: Explored the current state of LLM capabilities along with practical patterns for managing context windows, subagents, skills and agentic workflows (bash loops) for AI-first development.

“Fewer Juniors Today = Fewer Seniors Tomorrow”: Sparked widespread industry discussion on the long-term talent pipeline risks of AI hype in software engineering.

A two-phase gate locks design verdicts (right place, right abstraction, right thing to build) before line-level review begins. Separate evaluation bars per phase, a finding-depth ladder and a grader pass keep the output high-signal.

Portable skills + hooks that give coding agents wall-clock time awareness (chronos), productive disagreement (pushback), first-class git/PR workflows (shipit) and structured thinking (socratic). Multi-harness: Claude Code, Codex and others. More at github.com/kadenn.

Top research university in Turkey.

Started working as a developer in my second year while balancing coursework. Active in Ege Entrepreneurship Society, organizing company visits and campus events. Learned early that building is the best way to learn.