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Tech9TE

Prompt Engineer (LLMs / RAG / EdTech)

Tech9 is a custom software development company that provides dedicated development teams and builds custom software solutions for a variety of clients.

Tech9

Employee count: 51-200

Costa Rica only

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Prompt Engineer (LLMs / RAG / EdTech)

Why Tech9

Tech9 is shaking up a 20-year-old industry — and we’re not slowing down. Recognized by Inc. 5000 as one of the nation’s fastest-growing companies, ranked #23 among Utah’s fastest-growing companies, and named one of Forbes’ Top 500 Startup Companies to Work For (two years running), we’re redefining what it means to build world-class software and AI-driven solutions.
We invite you to interview with us, show us what you can do, and discover how Tech9 can give you the AI-forward career opportunity you’ve been looking for.

About the Role

We are partnering with a client seeking a highly skilled Prompt Engineer with deep expertise in LLM systems, structured prompt design, and simulation-driven learning environments.
This role sits at the intersection of product, pedagogy, linguistics, psychology, and applied AI — ideal for someone who understands both the creative and technical sides of LLM-powered learning experiences.
You’ll collaborate with simulation designers, AI engineers, and learning architects to craft structured prompts, evaluation frameworks, and RAG pipelines that power sophisticated learning simulations and human-interaction scenarios.

Responsibilities

  • Design, structure, and refine high-quality prompts for complex, production LLM environments.
  • Implement and maintain RAG pipelines, ensuring accurate retrieval and structured JSON outputs.
  • Build evaluation rubrics, prompt datasets, and testing frameworks to measure output quality and alignment.
  • Translate learning objectives and human-to-human scenarios into effective prompt-driven AI behaviors.
  • Serve as the connective tissue between creative teams (simulation designers, instructional writers) and technical AI engineers.
  • Lead prompt ideation, prototyping, testing, iteration, and deployment.
  • Apply principles from linguistics, cognitive psychology, learning design, and communication modeling to improve prompt quality.
  • Contribute to evolving prompt engineering processes, tools, and best practices for scalable delivery.

Minimum Qualifications

  • 3+ years of US-based EdTech experience.
  • 1–3+ years in AI/ML or product roles directly involving LLM systems.
  • Demonstrated expertise designing prompts for production LLMs (OpenAI, Claude, Gemini, etc.).
  • Strong understanding of RAG architectures, evaluation datasets, and structured outputs (JSON).
  • Background in linguistics, psychology, learning design, or communication modeling (strong plus).
  • Ability to bridge creative and technical domains, working effectively with writers, designers, and engineers.
  • Comfort working in ambiguity, rapidly prototyping, and iterating based on performance data.
  • Familiarity with learning platforms, behavior modeling, or communication simulations.

Nice to Have

  • Experience with simulation platforms or virtual learning environments.
  • Experience designing psychological rubrics or scenario-based learning journeys.
  • Exposure to working with voice actors, scriptwriters, or narrative teams.

What You’ll Love About Tech9

At Tech9, we prioritize freedom, flexibility, and craftsmanship. When you join us, you can expect:

  • Opportunities to work on meaningful, cutting-edge AI experiences.
  • Autonomy to shape prompt design and AI behavior.
  • A collaborative, supportive environment with talented teammates.
  • No unnecessary bureaucracy — just what you need to succeed.

Interview Process

Our interview process moves efficiently while ensuring clarity and alignment:
1. Introductory Call- Quick conversation with our recruiting team to understand background and alignment.
2. On-Demand HireVue Screening- Behavioral and situational questions to learn how you communicate and work through ambiguity
3. Internal Technical Interview- Deep dive into prompt engineering fundamentals, LLM design patterns, RAG reasoning, and structured output thinking.
4. Client Technical Interview #1- Scenario-based problem solving focused on LLM behavior shaping, evaluation methods, and simulation logic.
5. Client Technical Interview #2- Applied technical discussion on RAG pipelines, structured prompts, and real-world production examples.
6. Client Culture Fit Interview- Conversation with client stakeholders to ensure team alignment, collaboration style, and communication fit.

(Additional steps may be added if needed.)

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About the job

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Job type

Full Time

Experience level

Senior

Location requirements

Hiring timezones

Costa Rica +/- 0 hours

About Tech9

Learn more about Tech9 and their company culture.

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At Tech9, we are at the forefront of revolutionizing the custom software development landscape. Our approach is grounded in the belief that technology should be a catalyst for happiness and success, a philosophy we call 'Tech Happily'. Founded in 2015 by a team of four seasoned software development veterans, Tech9 was born out of a desire to rectify the prevalent issues of failed projects and unfulfilled promises that plagued the industry. We witnessed too many businesses settling for mediocre technology and knew there was a better way. Our mission is to build technology the right way, providing companies with the exceptional, high-quality software they deserve. Through our groundbreaking approach, we deliver not just a product, but a positive and rewarding journey for our partners, ensuring the final software aligns perfectly with their business objectives and drives tangible results.

Our innovation extends to how we structure our teams and serve our clients. We have curated a global network of top-tier, senior-level software development talent from the United States, Eastern Europe, Central America, and India. This allows us to build high-performing, remote-first teams that are perfectly tailored to the unique needs of each project. By being technology agnostic, we have the freedom to select the ideal tech stack for every challenge, ensuring the solutions we build are not only robust and scalable but also strategically aligned with our clients' long-term goals. Our commitment to quality, transparency, and partnership has established us as a leader in the industry, recognized by Inc. 5000 as one of the nation's fastest-growing companies. We are dedicated to creating 'Cloud-9' level happiness for every client, transforming their vision into reality with cutting-edge technology and an unwavering focus on their success.

Employee benefits

Learn about the employee benefits and perks provided at Tech9.

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Laptop reimbursement program

Laptop reimbursement program.

Learning and Development Stipend

Learning and Development Stipend.

Cloud Certification Reimbursement

Cloud Certification Reimbursement.

Unlimited time off

Tech9 offers an unlimited PTO policy.

View Tech9's employee benefits
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