Hiring: Prompt Engineer Job | LockedIn AI Careers

Hiring: Prompt Engineer Job | LockedIn AI Careers Back to all positions Job Title Prompt Engineer Reports To Co-Founder / Head of Engineering Employment Type Full-Time Work Model Remote (US-Based) · Optional hybrid in New York, NY Compensation $120,000 – $175,000 USD / yr About LockedIn AI LockedIn AI is the 1 real-time AI interview and meeting copilot, trusted by over one million users worldwide. We are a fast-growing company building the most advanced career preparation platform on the market. Our platform delivers real-time, AI-powered assistance during live job interviews, coding assessments, and professional meetings — helping candidates communicate with clarity, confidence, and competence. Role Overview We are looking for a creative, technically sharp Prompt Engineer to design, craft, and optimize the prompts and instruction sets that power LockedIn AI’s core AI experience. This is a hands-on, high-leverage role — the quality of every AI-generated response our users see flows directly through your work. You will own the full prompt lifecycle — from understanding user needs and model behavior, to writing and testing prompt architectures, to evaluating output quality and iterating based on real-world performance data. You will work across multiple LLM providers (OpenAI, Anthropic, open-source models) and develop prompt strategies that maximize accuracy, relevance, tone, and speed while minimizing hallucination, cost, and latency. The ideal Prompt Engineer combines exceptional language skills with a deep, practical understanding of how large language models work. You think in systems — building reusable prompt templates, chain-of-thought architectures, and evaluation rubrics — not just one-off instructions. You are obsessive about output quality and relentless about testing and iteration. Key Responsibilities Prompt Design, Development & Optimization - Design, write, and optimize production-grade prompts and system instructions