AI Prompt Engineer

PT Lingkar Niaga Solusindo; Jakarta Utara; On-site; IDR 200.000.000 - 300.000.000; Full time

Job summary

A leading tech company in Indonesia is seeking a skilled Software or Data Engineer. The role involves documenting workflows, designing prompts for AI, and analyzing LLM outputs. Candidates must possess strong SQL skills and be able to make minor Python code adjustments. The ideal candidate thrives in a small team and can communicate complex concepts to technical and non-technical stakeholders. Experience with various LLM providers and analytical databases is a plus.

Qualifications

• Mid to senior experience as a Software Engineer or Data Engineer.
• Strong SQL skills for writing and debugging queries.
• Ability to read and make minor fixes in Python code.

Responsibilities

• Document workflows and translate into structured system prompts.
• Design and maintain prompts to improve accuracy.
• Collaborate with engineers and stakeholders to validate workflows.

Skills

Software Engineering

Data Engineering

SQL

Python

API Documentation

Markdown

Problem-Solving

Communication

Tools

Google BigQuery

LLM tools (OpenAI, Google Gemini, Anthropic Claude)

Job description

Responsibilities

• Document manual workflows and translate them into clear, structured system prompts for AI agents.
• Design, iterate, and maintain prompts to improve accuracy, consistency, and guardrails.
• Analyse and debug incorrect, inconsistent, or unsafe LLM outputs, identifying whether issues come from prompt design, tools, data or queries, or model limitations.
• Collaborate with engineers to understand AI agent tools, backend behaviour, and request improvements.
• Work closely with stakeholders to validate workflows and clearly explain agent logic and execution steps.
• Test and compare AI agents across multiple LLM providers and configurations.
• Maintain prompts, configurations, and documentation in Git-based repositories using Markdown.

Requirements

• Mid to senior experience as a Software Engineer or Data Engineer, with strong understanding of backend systems and data workflows.
• Strong SQL skills, including writing and debugging queries to ensure correct data outputs.
• Ability to read and make small fixes in Python code to support code execution and debugging.
• Comfortable reading API documentation and working with structured JSON inputs and outputs.
• Proficient in Markdown for writing system prompts, configurations, and documentation.
• Able to translate real-world business processes into clear, step-by-step logic that AI agents can reliably follow.
• Strong problem-solving skills, including checking logs and documentation to diagnose and fix agent failures.
• Comfortable working independently in a small team with end-to-end ownership.
• Experience with multiple LLM providers (e.g. OpenAI, Google Gemini, Anthropic Claude) is a plus.
• Experience with analytical databases such as Google BigQuery and ability to read backend code (Go is a plus).
• Clear communicator, comfortable explaining agent logic, prompt structure, and execution flow to both technical and non-technical stakeholders, and presenting demos when required.