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Backend Engineer
NY, USA
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We’re Hiring: Founding Back-end Engineer | NYC | $200K–$250K + Equity


We’re working with a stealthy, fast-growing startup that’s building a cutting-edge platform to optimize LLM applications using real-world feedback loops — think smarter, faster, and more cost-effective AI.


What They’re Building:

• A unified model gateway

• Real-time feedback + metrics

• Optimization tools for prompts, models & inference

• A/B testing + experimentation frameworks

• Seamless observability + optimization pipelines


The Role:

They’re looking for a Founding Member of Technical Staff (Back-end Engineer) with deep systems engineering experience (especially in Rust) who’s ready to bridge infrastructure and ML experimentation.


Why You Should Join:

• $200K–$250K salary + competitive equity

• Most work is open-source and highly visible

• Major growth opportunity in both systems and ML

• In-person team in NYC – highly technical, ambitious, and collaborative

• Backed by top-tier investors with strong track records in AI + dev tools


What You Bring:

• Strong systems background — especially in Rust

• Experience taking projects from 0 to 1

• Hunger for growth and technical ownership

• Willing to work on-site in NYC


Partial relocation offered. Sponsorship is available



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