Founding Engineer

About Trelium

The Agent to Build Your Agents

Tech

Stack: Next.js, TypeScript, Claude Agent SDK, Workflow Development Kit We build with Claude Code. If you have never used Claude Code, please don't apply.

The role

We’re looking for a **Founding Engineer** to help build the core systems that power Questom.This is not a framework-specialist role. It’s not about perfect abstractions on day one. It _is_ about systems thinking, ownership, and the ability to stitch together complex infrastructure into something that works — fast.You’ll be one of a very small group shaping not just the product, but _how_ the company builds.## **What You’ll Do**### **Build systems that connect everything*** Design and build high-performance systems that connect: * Communication platforms (voice, SMS, email, chat) * Agentic workflows * External tools like CRMs and internal APIs* Stitch together APIs, workflows, and agents into cohesive systems that actually run in production* Think deeply about how these systems scale across many customers with different data sources and configurations### **Build agentic workflows*** Create workflows where agents: * Handle live conversations * Pull context from systems like Salesforce * Log outcomes in tools like HubSpot * Take real actions on behalf of users* Focus on _giving agents the right information at the right time_ and designing systems that make this repeatable across customers### **Turn ambiguity into working software*** Start from half-baked ideas, rough customer conversations, or incomplete requirements* Ship a 90% working solution quickly* Iterate toward something more general, scalable, and high quality### **Own what you build*** Take end-to-end ownership: design → build → ship → improve* Break things thoughtfully — and fix them yourself* Make judgment calls without needing constant guidance## **What Success Looks Like****In the first 30 days*** Sit in a few customer conversations* Identify a real pain point* Propose a product or feature to solve it* Build and ship an end-to-end solution that delivers real value**In the first 90 days*** Take learnings from multiple customer builds* Start shaping more general-purpose systems* Help lay the foundation for a platform that can scale to many customers — and eventually very large companies## **How We Build*** We use modern tools aggressively and expect you to learn quickly: * Agentic workflow frameworks * Communication infrastructure * AI agent SDKs* We rely heavily on coding agents and automation — curiosity and systems understanding matter more than syntax mastery* We build fast, then make it better* We’re opinionated, iterative, and comfortable changing direction when a simpler solution delivers customer value## **What Matters (and What Doesn’t)**### **What matters a lot*** **Systems thinking*** **Ownership*** **Comfort with ambiguity*** **Curiosity and fast learning*** **Product taste** (what’s worth building vs not)* **Respect for how other people think**### **What doesn’t matter much*** Deep expertise in any single framework or language* Pixel-perfect UI work* Writing perfect SQL by hand* Knowing our exact stack on day oneIf you understand how modern web systems, APIs, workflows, and agents fit together — and you’re excited to learn the rest — you’re in great shape.## **How We Work*** Fast, opinionated, iterative* Disagreements are encouraged and happen openly* We build first, think later — but we _do_ think* You won’t be micromanaged* You will be trusted with real responsibility early## **Who You Are**You likely describe yourself as:* Extremely curious* Highly independent* Comfortable operating without a map* Someone who enjoys connecting dots across systems* High-EQ and collaborativeYou want to be deeply involved — not just shipping tickets, but helping build a company.## **Who Should Not Apply*** If you need clear specs and guardrails to do your best work* If you prefer working in isolation* If you’re uncomfortable with constant ambiguity* If you don’t enjoy discussing ideas, systems, and tradeoffs with a small team* If you want a narrow role instead of broad ownershipIf reading this makes you feel _slightly intimidated but very excited_, that’s intentional — and probably a good sign.

Skills

• PostgreSQL
• React
• TypeScript
• Next.js