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RouteThis · 5 months ago

Senior AI Developer

United States

Full-time

Hybrid

Senior Level

RouteThis is a SaaS company on a mission to revolutionize technical support with AI-powered solutions. They are seeking a Senior AI Developer to build agentic AI systems, lead evaluations of LLM usage, and mentor other engineers while collaborating with product teams to drive intelligent solutions.

Artificial Intelligence (AI)

Responsibilities

Build agentic AI systems that solve real-world connectivity and support problems through planning, tool use, and multi-step reasoning

Lead the effort in evaluating LLM usage for safety, correctness, hallucination, contextual relevance, and performance—ensuring the right model is used for the job

Design robust prompts and workflows to support voice and text-based interactions across a wide variety of customer environments

Guide and mentor other engineers, elevating the team’s ability to build agentic systems through design reviews, pairing, and shared tooling

Partner with product and CX teams to deeply understand customer problems and drive intelligent solutions

Prototype quickly to learn what works—and scale what does

Qualification

AI-powered product developmentLLM evaluation techniquesPrompt engineeringScalable software systemsAI developer toolsVoice UX experienceModern dev stacksCoachingStartup experienceMentoring

Required

Hands-on experience building and shipping AI-powered products

Familiarity in LLM evaluation techniques: tool correctness, grounding, hallucination detection, prompt tuning, safety, etc

Understanding of RAG, multi-modal inputs, prompt engineering, and customer-specific customization

Practical knowledge of LLM observability, model selection, and cost-performance tradeoffs

Experience working in startup or high-speed product environments, where ownership and iteration are key

Proven experience designing and building robust, scalable software systems

Experience using AI developer tools (e.g., Cursor, Copilot, Surfboard) as part of your day-to-day workflow—and a willingness to share those practices to uplift the entire team

A natural coach and mentor—someone who makes the team better by sharing insights, patterns, and feedback

Familiarity with modern dev stacks (e.g., AWS, Python, Node.js, React) and CI/CD pipelines