Staff Full Stack Engineer

About the role

We're expanding our NYC engineering team and are seeking talented individuals to join our dynamic and innovative environment. As an early member of the team, you'll have significant responsibility in shaping the core of our platform and contributing to a growing team of 20+ engineers over the next 18 months.

Responsibilities

• Own 0→1 and 1→N features across the stack, from design docs to building high-throughput data pipelines and scalable FastAPI services.
• Architect and own the core agent orchestration engine, designing complex, multi-agent LLM workflows (routing, tool-use, memory, evaluation) with deterministic fallbacks, guardrails, and auditable actions required by enterprise users.
• Build AI-native, human-in-the-loop UIs. Craft React/Next.js interfaces that let users collaborate safely with agents, with transparency and explainability by design.
• Develop the "factory for the factory". Build our experimentation platform: CI/CD for prompts and agents, offline/online evals, drift detection, safety layers, and rollout controls.
• Ship fast, safely. Instrument everything for reliability, write concise design docs, add robust tests, and build dashboards and alerts for features you launch.
• Partner cross-functionally with Product, AI, Design, CS; talk to customers and SMEs, and turn ambiguous problems into shipped product.
• Operate what you build. This includes on-call ownership, leading incident response, and driving learning through blameless postmortems.
• Level-up the team around you. Mentor and collaborate with other engineers to help make the entire team better.

Requirements

• Experience with LLM/agent systems, evals, and prompt tooling; RAG, embeddings, vector dbs.
• Deep knowledge of event-driven systems, streaming, and workflow engines.
• Expertise in observability (OpenTelemetry/Prometheus/Datadog), feature flagging, or A/B platforms.
• Background in enterprise security and compliance (SOC 2, GDPR).
• Bias to action: short specs, small PRs, daily deploys.
• In-person collaboration: we're building the NYC hub together; whiteboards > long threads.
• High ownership: you'll touch product, talk to customers, and influence the roadmap.

Qualifications

• Strong full-stack fundamentals.
• Experience building AI-native systems.
• Capable of turning ambiguous problems into scalable, reliable features that drive real business impact.

Skills

• Systems thinking.
• Technical chops.
• Ownership mindset.
• AI tools integration.
• Communication skills.
• Grit.

Benefits

• Competitive salary + commission plan if applicable to role.
• Equity options.
• Healthcare (medical, dental, and vision).
• Additional coverage.
• Company laptop and one-time, onboarding Technology Stipend.
• 401(k) with company match.
• Flexible time-off.
• Hybrid working.