Senior Backend Engineer (Java / Python)
Confirmed on the employer's own hiring board on Nov 15, 2026. First seen by Alion on Nov 12, 2026.
About Vicarius
Vicarius develops vRx, a vulnerability remediation platform. Customers use it to detect and remediate security vulnerabilities across their servers and endpoints. The backend is a multi-tenant, multi-region system of event-driven services.
Our platform bridges security, IT, and operations, automating patch deployment, intelligently prioritizing risk, and empowering proactive threat mitigation.
Recognized by Gartner in the 2025 Magic Quadrant for Exposure Assessment Platforms and named a Major Player in the 2025 IDC MarketScape for Worldwide Exposure Management, we are trusted at scale.
With 1000+ customers across 65+ countries, we’re solving real-world problems in modern environments.
Role Overview
We are looking for a senior engineer with strong system design skills who can build complete systems and products. Agentic coding is a standard part of our development process, and we expect you to use it to deliver quickly.
Join our engineering team and build the future of cyber-risk remediation, where security isn’t about alerts, it’s about action.
With us, you’ll move fast, iterate boldly, and scale globally.
Responsibilities:
Design and build backend systems and product features, from design document to production.
Work across the platform: APIs, event pipelines, data models, analytics, and AI features.
Make architecture decisions for a multi-tenant system under high load.
Deliver quickly with agentic coding tools, and keep the quality high.
Requirements:
5+ years of experience with Java or Python, and willingness to learn the other.
Strong system design: data modelling, distributed systems, consistency, failure handling, and performance.
Experience delivering complete systems or products.
Practical experience with agentic coding tools (Claude Code preferred).
Clear written and spoken technical communication.
Why Join Vicarius?
Hybrid flexibility
Work on cutting-edge cybersecurity challenges
Join a global A-team of top performers
Make a real impact: your work shapes the future
Grow fast in a culture of curiosity and ownership