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 Uncertain (50-64)
This role was detected through RBR Technologies's hiring system and hasn't been verified directly by the employer. Our algorithm scored it as Uncertain (50-64) based on freshness, specificity, and company patterns. What does this mean? →

JBlocks Java Software Engineer 1 or 2

RBR Technologies
🔍 Observed
64
Hiring Activity Score
Uncertain (50-64)
  • Base score
  • Posted 22 days ago
  • has salary, has location, quality description (4190 chars)
  • 4 skills
  • High confidence (90%)
How the Hiring Activity Score works →
$123K - $165K USD
Annapolis Junction, Maryland, US First seen 3 weeks, 1 day ago Last seen 5 hours, 42 minutes ago JSearch
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Job Description

AI Summary
• Develop new JBlocks capabilities for data-labeling systems while performing development, testing, and troubleshooting in Docker/GitLab CI/CD environments using Java and tools like GreyBox. • Requires active TS/SCI Polygraph clearance, strong Java proficiency, knowledge of unit/integration testing, and familiarity with PKI, REST, Linux, and GitLab. • Level 1 requires 3+ years related experience + Bachelor's degree (or 7 years total experience); Level 2 requires 5+ years experience + Bachelor's degree + 2 years SIGINT/IA/IT domain work (or 9 years total experience). • Apply expertise in security standards (EDH1/2, ISM, CAPCO, CUI), design complex software systems, and resolve technical issues across analytics, algorithms, and large datasets. • Service-disabled veteran-owned company offering mission-focused work, competitive salaries, and people-first culture with strong community commitment.

Skills

docker java git go
Job Information
  • Company:
    RBR Technologies
  • Location:
    Annapolis Junction, Maryland, US
  • Job Type:
    Full-Time
  • Experience Level:
    Senior
  • Source:
    JSearch
  • Status:
    Active
Activity Score
64 /100
Uncertain (64)

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

More from RBR Technologies
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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.