Melius — New York City
Engineers have Cursor. Lawyers have Harvey. The office of the CFO has Ramp. Every knowledge profession has been handed a platform that lets them orchestrate agents and scale their output by an order of magnitude — except the people who actually make the things we look at, watch, and listen to.
Melius is the agents lab for creative work. We build agentic interfaces to all the work that goes into building the next generation of images, video, audio and so much more. Generative media canvas, timeline editor, asset manager, and much more, built native for agents. Using Melius, users can spend more time being creative and let go of the century old legacy tools that only acted as constraints to their imagination.
We’re backed by General Catalyst, Vine Ventures, Genius Ventures, and Antifund, and built by a team of second-time founders, former engineering leaders from Ramp, and operators who came up through top-tier VC and PE. We move fast, ship every day, and have strong opinions about craft.
The roleThis is not a “summer project” internship. Expect to be treated exactly as a full time engineer would be from the first day at your job. There will be dozens of projects that you lead and are expected to educate both customers and other members of the team on.
The stack: Next.js and a real-time CRDT canvas on the frontend, NestJS / MikroORM / Postgres / Temporal / Turbopuffer on the backend, and the agent and model orchestration layer that ties it all together.
High level activities for the internship might include:
Building new tools for our agent end-to-end — what it can do on the canvas, what it can change in the timeline editor, and how it can semantically search in the asset manager.
Sitting in on user sessions, watching a creative hit a rough edge, and shipping the fix that same hour.
Adding evals and traces that tell us, honestly, whether the agent got better this week.
Polishing canvas interactions that thousands of creatives touch every day — the small details users never explicitly notice but always feel.
You’ll work directly with senior engineers and the founders. Expect fast feedback, real code review, and more ownership than you’ve been trusted with before.
You’ll fit if youAre pursuing a degree in CS (or equivalent) and have built something real: a side project people actually used, open source contributions, a previous internship where you shipped.
Are comfortable in TypeScript, or good enough at programming that you’ll be effective in it within a week.
Have played with LLMs beyond the chat box. Tool-calling, agent frameworks, React Flow, Yjs/CRDTs, or anything you hacked together at 2am are all table stakes.
Care about small details users never explicitly notice.
Are comfortable with uncertainty. We might implode tomorrow or we might grow 100,000,000% WoW next week.
Default to shipping. Let’s get shit done.
$8500 monthly salary
$2500 monthly stipend for housing
$70 per diem for meals
In-person in NYC with a lean team of people who love the game, obsessed with building the future of creativity.
If this is the kind of problem you’re interested in, apply!
Skills Required
- Pursuing a degree in Computer Science or an equivalent field
- Built something real, such as a used side project, open-source contribution, or shipped internship project
- Comfortable with TypeScript or able to become effective in it within one week
- Experience with LLMs beyond basic chat usage, such as tool-calling or agent frameworks
- Ability to work effectively in an uncertain, fast-moving startup environment
- Strong attention to product and user-experience details
What We Do
Melius is building an AI-native creative workspace where people and AI agents collaboratively generate, edit, and orchestrate images, video, and audio. Its platform combines real-time collaborative infrastructure, multimodal AI models, and agentic workflows, enabling artists, brands, studios, and creative teams to direct work across connected tools rather than fragmented apps and prompts. The company is based in New York City and focuses on giving users control over creative workflows.
