Prompt Engineer: Design & Validate AI Prompts

Success IT Consultancy & Services Pte Ltd; Singapore; On-site; SGD 60,000 - 120,000; Full time

Job summary

Success IT Consultancy & Services Pte Ltd seeks a Prompt Engineer to design, test, and maintain structured prompts and templates for AI-driven workflows. You will define output schemas, constraints, and criteria to ensure reliable, aligned results across products and stakeholders.

Applicants should have strong written communication, experience with GPT/LLMs, and familiarity with prompt versioning and change control.

Qualifications

• Proven ability to write clear, unambiguous instructions.
• Experience creating structured prompts, templates, and specifying output formats.
• Working knowledge of GPT/LLMs and how they respond to instructions and context.
• Understanding hallucinations, bias, and common failure modes.
• Familiarity with prompting techniques (zero-shot/few-shot, chain-of-thought alternatives, tool/calling concepts).
• Experience with prompt versioning, documentation, and change control.

Responsibilities

• Design and maintain structured prompts, templates, and output schemas aligned to product and stakeholder requirements.
• Define expected outputs, constraints, and completion criteria for deliverables; document assumptions, edge cases, and limitations.
• Apply LLM best practices (context management, instruction hierarchy, few-shot examples) to improve accuracy and consistency.
• Test and debug prompt behavior through iterative experimentation; analyze failures and reduce hallucinations and variability.
• Create evaluation approaches (test sets, rubrics, human review workflows) and track quality over time.
• Implement Prompt Ops practices: version control, change management, documentation, and release processes for prompt assets.

Skills

Prompt design

Clear communication

GPT/LLMs literacy

Edge-case handling

Prompt versioning

Prompt testing

Job description

Success IT Consultancy & Services Pte Ltd seeks a Prompt Engineer to design, test, and maintain structured prompts and templates for AI-driven workflows. You will define output schemas, constraints, and criteria to ensure reliable, aligned results across products and stakeholders.

Applicants should have strong written communication, experience with GPT/LLMs, and familiarity with prompt versioning and change control.