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PERSOL

Prompt Engineer | Yearly Renewable Contract

Posted Updated
Discussion

Salary: $7,000 – $8,700 per month

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 including context management, instruction hierarchy, and 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 including test sets, rubrics, and human review workflows, and track quality over time.

  • Implement PromptOps practices including version control, change management, documentation, and release processes for prompt assets.

  • Monitor production performance covering quality, safety, latency, and cost, and optimize prompts for efficiency.

  • Collaborate with UX/Product teams to design user-friendly AI interactions, workflows, and guardrails.

  • Partner with engineering teams to integrate prompts into applications, including retrieval-augmented workflows (RAG) where applicable.

  • Ensure prompts and AI experiences align with governance, security, privacy, and safety standards.


Essential Qualifications

Communication & Writing

  • Strong written communication skills with the ability to produce clear and unambiguous instructions.

  • Experience creating structured prompts, prompt templates, and specifying output formats.

  • Ability to translate business needs into actionable prompt requirements and documentation.


AI/LLM Knowledge

  • Relevant experience in prompt engineering, LLM evaluation, AI application development, or Generative AI solutions.

  • Working knowledge of GPT/LLMs and how they respond to instructions and context.

  • Understanding of hallucinations, bias, and common failure modes.

  • Familiarity with prompting techniques, including:

    • Zero-shot

    • Few-shot

    • Chain-of-thought alternatives

    • Tool/function calling concepts

    • Prompt constraints and limitations


Analytical Thinking

  • Ability to test prompts systematically, interpret outputs, and identify root causes of failures.

  • Comfortable with iterative refinement, A/B-style comparisons, and accuracy/quality improvement.

  • Ability to design simple evaluation criteria and measure improvements over time.


PromptOps & Governance

  • Experience with prompt versioning, documentation, and change control.

  • Understanding of monitoring requirements for quality and safety in production.

  • Awareness of cost optimization levers, including:

    • Token usage

    • Response length constraints

    • Prompt efficiency


UX & Product Thinking (Core)

  • Ability to design intuitive AI interactions that fit user workflows.

  • Experience collaborating with Product and UX teams to align AI behavior with user intent.

  • Understanding of how to set expectations and provide helpful, safe, and effective responses.

Interested candidates, please click on the following link to begin your job search journey and submit your curriculum vitae (CV) directly.

By sending us your personal data and curriculum vitae (CV), you are deemed to consent to PERSOL Singapore Pte Ltd (""PERSOL"") and its local and overseas subsidiaries and affiliates to collect, use and disclose your personal data to prospective employers/companies based in any country for purposes of evaluating suitability for employment, conducting reference checks, administering employment related services, complying with Government’s health advisories and such other purposes stated in our Privacy Policy.

We may use artificial intelligence (""AI"") and machine learning technologies to support our recruitment and placement services, including screening resumes, assessing qualifications and experience, and identifying skills and job matches. Where permitted by applicable law, we may also use such personal data to develop, train, test, improve and/or fine-tune AI and machine learning technologies that support our recruitment and business operations.

For more information on how we collect, use, disclose and protect your personal data, please refer to our Privacy Policy: https://www.persolsingapore.com/policies. If you wish to withdraw your consent, including consent relating to the use of your personal data for AI-enabled recruitment activities and AI development activities, please email us at sg.dataprotection@persolapac.com.

PERSOL Singapore Pte Ltd • RCB No. 200007268E • EA License No. 01C4394• Reg. R26159701 (Noor Eliza Chai Binti Ibrahim Essini Chai)

Skills

See also

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