SlipstreamJobs tracks this role from the company's public career site. Apply directly on the employer's site.
AI Rudder is seeking a Senior Prompt Engineer to lead the design, testing, improvement, and launch of prompts, AI workflows, and LLM-powered solutions for complex business use cases across multiple countries. You will partner with product, engineering, data, operations, and regional business teams to translate real business needs into reliable, scalable, and measurable AI capabilities.
Key responsibilities include:
- Design and optimize system prompts, user prompts, few-shot examples, output formats, tool-use instructions, and conversation flows for LLM applications, RAG systems, and automated workflows
- Own prompt quality from prototype to production, including version control, regression testing, A/B testing, evaluation criteria, launch checklists, and ongoing monitoring
- Build and maintain evaluation frameworks measuring task success, accuracy, groundedness, hallucination rate, safety, response time, token cost, user satisfaction, and business impact
- Adapt prompts, workflows, tone, language, compliance requirements, and business logic for different markets and stakeholders
- Collaborate with regional teams, clients, product managers, solution architects, and data engineers to clarify requirements and deliver on tight timelines
- Test prompts against risks including prompt injection, jailbreaks, conflicting instructions, sensitive data leaks, unsafe responses, and compliance gaps
- Create reusable prompt libraries, templates, documentation, and playbooks to accelerate delivery across countries and projects
- Stay current with LLM developments, RAG, model evaluation, and multimodal AI, translating new capabilities into practical business solutions
About the company: AI Rudder is a conversational AI company founded in 2019 and headquartered in Singapore. The company serves 500+ enterprise clients globally, processing 50 million calls daily with 8+ billion calls delivered to date. Recently raised $50M Series B from Tiger Global, Peak XV Partners, and Cathay Innovation. The company operates with an AI-first philosophy, global collaboration model, and emphasis on simple, transparent communication.
Minimum Qualifications:
- Bachelor's degree or above
- 2+ years hands-on experience with LLMs, prompt engineering, RAG, AI agents, or GenAI applications
- Strong skills in prompt design, context engineering, instruction hierarchy, and structured output design; ability to define evaluation metrics, build test cases, analyze model outputs and failures, and make data-driven improvements
- Experience with production LLM systems such as RAG, tool/function calling, agent workflows, knowledge retrieval, vector search, evaluation pipelines, or monitoring
- Strong project coordination skills in fast-paced, high-pressure environments with multiple stakeholders
- Excellent English communication skills (official working language) and Mandarin, as role works closely with stakeholders in Greater China
- Willingness and ability to travel internationally for client workshops, project delivery, user research, and regional rollouts
Preferred Qualifications:
- Experience coordinating projects across multiple countries
- Familiarity with mainstream LLMs and platforms such as OpenAI, Anthropic Claude, Google Gemini, Azure OpenAI, or open-source models like Llama/Qwen
