AI Systems Engineer: End-to-End Ownership & Impact

coreflow; New York (NY); On-site; USD 150,000 - 210,000; Full time

Benefits offered by this job

Top-of-market compensation with equity

Real ownership from day one

Fast-growing scope

Company card for food, coffee, tools

Daily team lunch and dinner

Unlimited workspace budget

Job summary

coreflow, based in New York, is building a new category of interactive entertainment powered by AI characters, image, video, and real-time experiences. You will join a lean engineering team with broad ownership across product, infrastructure, and AI, tackling real user problems from first principles to delivery and iteration.

You will design and ship systems, evaluate models, and optimize for millions of users on a modern stack that includes TypeScript, Python, and self-hosted GPUs.

Qualifications

• A track record of shipping exceptional products at meaningful scale.
• Strong product and engineering judgment: knowing what to build, how to build it, and where to make tradeoffs.
• Hunger to win and take on responsibility.

Responsibilities

• Join a small, talent-dense engineering team with ownership across product, infrastructure, and AI.
• Work from problems and outcomes: understand user needs, decide what to build, design the system, ship it, measure results, and iterate.
• Our stack includes TypeScript, Next.js, React, tRPC, Postgres, ClickHouse, Temporal, and AWS; Python for inference (LLMs, TTS, diffusion) on self-hosted GPUs.
• Design memory for long conversations: write, rank, and retrieve memories within a fixed context budget.
• Build the For You feed: end-to-end retrieval, ranking, cold start, and experimentation with retention as the metric.
• Ship frontier models days after release: evaluate, benchmark, and optimize hosting costs for millions of users.

Skills

Product leadership

Engineering judgment

Ownership mindset

Job description

coreflow, based in New York, is building a new category of interactive entertainment powered by AI characters, image, video, and real-time experiences. You will join a lean engineering team with broad ownership across product, infrastructure, and AI, tackling real user problems from first principles to delivery and iteration.

You will design and ship systems, evaluate models, and optimize for millions of users on a modern stack that includes TypeScript, Python, and self-hosted GPUs.