Senior Java Engineer (Security Remediation & Platform Modernization)

Outstaff Hiring: Remote — Contract (Full-time, Long-term)

About the Role

Our client is looking for a Senior Java Engineer to join a focused modernization and security remediation project for a global financial news and data platform.

You’ll work on a mature production system, identifying and resolving security vulnerabilities, upgrading legacy dependencies, and improving the stability of Java-based search and API services. This role requires someone who enjoys understanding complex legacy systems and can confidently make safe, well-tested improvements.

You’ll also leverage GenAI coding tools (such as Claude or similar) to accelerate development and remediation work.

Location: Remote (EU)
Engagement: Full-time, long-term contract
Start Date: ASAP
Language: English
Time Zone: European business hours with 2-3 hours EST overlap

Responsibilities

• Identify and remediate security vulnerabilities across Java applications.
• Upgrade outdated Java libraries and frameworks while minimizing regression risks.
• Improve the stability and maintainability of search services and APIs.
• Support modernization of the NewsEdge platform and OPENS API.
• Collaborate with application and database teams on cross-functional changes.
• Perform testing and validation to ensure production-ready deployments.
• Use GenAI coding tools to improve development efficiency.

Requirements

Must-have

• 5+ years of commercial Java development experience.
• Strong experience working with large, legacy Java codebases.
• Proven ability to troubleshoot, prioritize, and resolve complex technical issues.
• Experience using AI coding assistants (Claude, GitHub Copilot, Cursor, ChatGPT, or similar).
• Experience with search technologies such as:
  
  • Apache Lucene
  • Elasticsearch
  • Apache Solr
• Strong debugging and problem-solving skills.
• Good understanding of software maintenance, dependency management, and production support.
• Strong written and spoken English.
• Excellent communication and collaboration skills.

Nice to Have

• Experience with security remediation projects.
• Experience modernizing enterprise applications.
• Familiarity with financial services or news/data platforms.

What You’ll Get

• Long-term remote contract.
• Opportunity to work on a globally used enterprise platform.
• Challenging modernization project with significant technical ownership.
• Collaborative team of experienced engineers.
• Opportunity to work with modern AI-assisted development tools.