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Job ID : 1600816 Date Updated : July 6th, 2026

EN/JP Software Engineer in Test / QA Engineer (Agentic AI)

Location Tokyo - 23 Wards
Job Type Contract
Salary 6 million yen ~ 9 million yen

Work Style

Casual Clothing

Job Description

This is a rolling renewable contract role at an established foreign insurance firm.

Our client is establishing a brand-new capability within their AI Platforms Team and are looking for a bilingual AI QA / Evaluation Engineer to build evaluation foundation from scratch.

You will serve as the quality guardian for applications powered by LLMs, RAG pipelines, OCR, tool calling, and automated workflows. This role is perfect for a technical QA professional who is curious about LLM behaviors, proactive about finding edge-case risks, and passionate about continuous automated validation.

Key Responsibilities:

- Build AI Evaluation Datasets: Create and maintain robust "golden datasets" and test cases that act as unit tests for prompts, RAG responses, OCR outputs, and agent workflows.

Test System Correctness: Validate that agentic systems demonstrate sound reasoning, strict retrieval accuracy, correct tool execution, and reliable fallback handling.

Mitigate Risk & Hallucinations: Define methodologies to detect production hallucinations, measure answer quality trends, and build operational dashboards (Power BI, Grafana, etc.).

Automate Evaluation Pipelines: Build reusable test harnesses and integrate automated evaluation/regression checks directly into CI/CD release gates.

Responsible AI & Compliance: Evaluate applications for potential bias, unfair treatment, compliance issues, and data privacy risks within regulated environments.

Cross-Functional Partnering: Translate business expectations into measurable technical criteria alongside engineers, data scientists, and business stakeholders.

General Requirements

Minimum Experience Level Over 3 years
Career Level Mid Career
Minimum English Level Fluent (Amount Used: English usage about 50%)
Minimum Japanese Level Business Level
Minimum Education Level Bachelor's Degree
Visa Status No permission to work in Japan required

Required Skills

■Qualifications

- Min of 4- 5 years of work experience

- Core experience in Software QA, test automation, data validation, or AI/ML application quality engineering.

- Solid conceptual understanding of LLMs, prompt engineering, RAG, OCR, tool calling, and agentic system behaviors.

- Hands-on automation scripting experience using Python or JavaScript/TypeScript.

- Working familiarity with modern CI/CD pipelines, Azure DevOps, and GitHub Enterprise.

- Familiarity with testing frameworks, observability tools, or dashboarding software (e.g., pytest, Playwright, LangSmith, PromptFlow, MLflow, Power BI, Grafana) is a major plus.

Business-level Japanese (or above) is mandatory for this role, as you must read Japanese business context documents and align directly with local teams.

 

Job Location

  • Tokyo - 23 Wards

Work Conditions

Job Type Contract
Salary 6 million yen ~ 9 million yen
Industry Other (Banking and Financial Services)

Job Category

Company Details

Company Type Large Company (more than 300 employees) - International Company
Non-Japanese Ratio Majority Non-Japanese