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AI Subtitle Quality Assurance Developer

Soltix AI

Remote · $60k – $80k / year · Full-time · Posted 5 months ago

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About the role

Machine-translated subtitles range from perfectly natural to hilariously wrong — and the difference is often invisible to automated quality metrics. BLEU scores can't tell you that a subtitle is grammatically correct but culturally inappropriate, or that it's technically accurate but reads at a pace no human can follow. Our QA system catches the quality issues that metrics miss. You'll build quality checks that go beyond translation accuracy: reading speed validation (characters per second must match subtitle display duration), line break optimization (subtitles shouldn't split in the middle of a phrase), timing alignment verification (subtitles must appear when the speaker starts, not 2 seconds late), and cultural sensitivity flagging for potentially inappropriate translations. The localization QA team is three engineers. You'll start with the timing and reading speed validators — objective checks that can be fully automated. As you learn the domain, you'll progress to the more subjective quality dimensions that require ML-based assessment.

Fully remote.

Responsibilities

  • Build automated quality checks for machine-translated subtitles
  • Implement reading speed validation against display duration constraints
  • Design line break optimization for natural subtitle segmentation
  • Create timing alignment verification between audio and subtitle display
  • Flag cultural sensitivity issues in translated content
  • Test quality checks across 14 supported language pairs

Requirements

  • 1+ year of Python development experience
  • Basic understanding of NLP or text processing concepts
  • Interest in localization, translation, or media technology
  • Attention to detail for quality-critical applications
  • Familiarity with subtitle file formats is a plus but not required

Benefits

  • Fully remote across EU time zones
  • 28 days PTO
  • €1,500 learning budget
  • Work with content in 14+ languages
  • Structured mentorship program

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Categories

NLP & Prompt Engineering Automation & AI Workflows

Skills

python hugging face docker sql fastapi

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Job Type

Full-time

Level

Junior

Language

English

Salary Range

$60k – $80k / year

AI Expertise

NLP & Prompt Engineering Automation & AI Workflows

Skills

python hugging face docker sql fastapi

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