Fullstack Engineer

About Comena

Comena builds AI agents for industrial distributors and manufacturers to automate their order processing from e-mail inbox to ERP. At distributors across the US and Germany alone, there are 4 million sales and procurement people stuck in manual workflows between inbox and ERP. We want to automate this work and liberate these people to work on more meaningful things.

We’re part of the YC S25 batch - the most selective batch in YC history. We recently raised a seed round from top Silicon Valley investors, and are serving customers across US and Germany.

About the role

As a Fullstack Engineer, you will play a pivotal role in shaping our product and technology stack from the ground up. You will work closely with the founders to design and build features end-to-end, bring new AI-driven capabilities to market, and integrate our product into our customer’s IT landscape. You’ll be a core member of the team, writing production-quality code and making high-impact decisions from day one. We move at startup speed: you'll prototype, iterate, and deploy features rapidly, learn on the fly, and help define our engineering culture and architecture.

Key responsibilities

• Build full-stack features: Develop and ship core product functionality using our Typescript frontend and Python backend. Take features from idea to production, including UI, business logic, and cloud services.
• Customer onboarding and implementation: Handle customer data and ERP integrations. Understand customers’ ERP setup and custom workflows.
• Collaboration: Work closely with the founders and customers to translate customer needs into technical solutions.

We’re looking for someone that …

• Has high agency
• Ships full-stack apps quickly without compromising on code quality
• Is comfortable being client-facing
• Loves startups and running together to make something great happen
• Wants to work very hard beyond traditional 9-5 hours

Tech Stack

We work with Python (Django), Typescript, Postgres, and the latest LLMs.

Why join us?

• Your work will directly impact workers and companies around the world, to make global supply chains run smoothly.
• We’re keeping our team deliberately small. We believe more people translate to more output if and only if each member is elite.
• You’ll be working with cracked founders. Jiehua was the youngest software engineer at Google Zurich and the first sales hire at Lio (YC S23). Almo shipped code at Microsoft and Amazon AWS, and was the first engineer at Leaping AI (YC W25).
• If you need any perks to feel productive, let us know and we’ll make it happen.

Process

1. 30 min call with a founder
2. Compensated take-home challenge
3. Offer