New RJRP now shows Market-Observed Roles alongside verified postings — scored by our Hiring Activity algorithm. How it works →
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Market-Observed Role 🔍 Observed Likely Active (65-79)
This role was detected through DataAnnotation's hiring system and hasn't been verified directly by the employer. Our algorithm scored it as Likely Active (65-79) based on freshness, specificity, and company patterns. What does this mean? →

Mobile Engineer, Kotlin/Android (part time work from home)

DataAnnotation
🔍 Observed
66
Hiring Activity Score
Likely Active (65-79)
  • Base score
  • Posted 21 days ago
  • has salary, has location, quality description (2869 chars)
  • logo, 8 skills
  • High confidence (90%)
How the Hiring Activity Score works →
$83K - $104K USD
Baltimore, Maryland, US First seen 3 weeks, 1 day ago Last seen 2 hours, 53 minutes ago JSearch
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Job Description

AI Summary
• Mobile engineer role focused on designing coding problems for AI training, with emphasis on Android/Kotlin development and evaluating AI-generated code quality. • Required qualifications include fluency in English, bachelor's degree (completed or in progress), Kotlin proficiency or experience with JavaScript, Python, Java, C++, React, Go, or Swift, plus strong writing skills. • Part-time remote position available in US, Canada, UK, Ireland, Australia, and New Zealand with flexible scheduling—choose your own projects and work hours. • Competitive pay starting at $50+ USD per hour with opportunities for higher-paying projects based on performance; payment via PayPal. • Entry process involves account signup followed by a short assessment (replaces traditional interview); previous software development experience is preferred.

Skills

typescript react kotlin swift javascript java go python
Job Information
  • Company:
    DataAnnotation
  • Location:
    Baltimore, Maryland, US
  • Job Type:
    Full-Time
  • Experience Level:
    Mid
  • Source:
    JSearch
  • Status:
    Active
Activity Score
66 /100
Likely Active (66)

Higher scores indicate more likely active hiring based on listing freshness, company activity, and other signals. Learn more →

More from DataAnnotation
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We now show two types of job listings

Same commitment to real jobs. More opportunities for you. Here's how it works.

✓ Verified Employer-Verified Posts

These jobs were posted directly to RJRP by the employer. The company has been verified through our multi-step process. This is our gold standard — the employer is real, the job is real, and you can apply with confidence.

✓ 100% employer verified
🔍 Observed Market-Observed Roles

These roles were detected through employer hiring systems like Workday. They haven't been verified by the employer directly, so we score each one using our Hiring Activity Score — an algorithm that analyzes freshness, specificity, company hiring patterns, and more to estimate whether the role is actively being filled.

📊 Only high-scoring listings are shown

Our promise hasn't changed. We will never show you a listing we can't stand behind. Market-observed roles must pass our scoring threshold before they appear on RJRP. Anything that looks like a ghost job, a talent pipeline, or a dead listing gets filtered out — you'll never see it.