Code Quality and Security Optimization Specialist

SonarQube Security & Code Quality Remediation Specialist - JavaScript/Python


Summary
We have a production-ready web application (health insurance platform) that requires immediate remediation of security vulnerabilities and code quality issues identified by SonarQube Cloud analysis.
Current State:
4 projects analyzed (JavaScript, Python, TypeScript, PL/SQL)
20 total security vulnerabilities across all projects
3,900+ reliability bugs requiring triage and fix
36.6% code duplication in main application (124k lines)
2 of 4 projects currently failing SonarQube Quality Gate
Your Mission:
Fix all critical and high-severity issues to achieve production-ready code quality standards.
Specific Deliverables:
Security Remediation (Priority #1)
Fix all 20 security vulnerabilities to zero critical/major issues
Projects: coverlaunch (3 issues), coverlaunch_backend (13 issues), coverlaunch_ai_agent (2 issues), coverlaunch_frontend_admin (2 issues)
Provide CVE references and fix explanations for each
Reliability Bug Fixes
Reduce coverlaunch from 3,500 bugs to under 500 (focus critical/major)
Reduce coverlaunch_backend from 424 bugs to under 50
Triage and fix critical bugs in other two projects
Code Duplication Reduction
Reduce coverlaunch duplication from 36.6% to under 15%
Refactor common patterns into shared utilities/components
Quality Gate Compliance
All 4 projects must show "Passed" in SonarQube Quality Gate
Zero critical security vulnerabilities remaining
Maintain existing functionality (no regressions)
Documentation
Detailed fix report with issue IDs, descriptions, and solutions
Before/after SonarQube screenshots
Regression testing results
Technical Stack:
Frontend: JavaScript, TypeScript, React (43k lines)
Backend: Node.js, JavaScript, PL/SQL (52k lines)
AI Agent: Python, Docker (4.8k lines)
Main App: JavaScript, CSS (124k lines)
Requirements:
Proven track record with SonarQube remediation (show before/after examples)
Strong JavaScript/Python security expertise
Experience with OWASP Top 10 vulnerabilities
Ability to refactor without breaking existing functionality
Excellent communication and documentation skills
Available to start immediately and complete within 1-2 weeks
Nice to Have:
Experience with healthcare/fintech compliance (HIPAA, PCI-DSS)
CI/CD pipeline setup experience
Docker containerization knowledge
What We Provide:
Full SonarQube Cloud access with detailed issue reports
GitHub repository access
Existing test suite (if available)
Technical contact for business logic questions
Engagement Terms:
Fixed-price contract preferred (please provide quote based on scope)
Or hourly with not-to-exceed cap
Milestone-based payments: 30% start, 40% security complete, 30% final delivery
30-day warranty on all fixes
To Apply, Please Include:
Links to 2-3 similar SonarQube remediation projects (before/after scores)
Your approach to handling security fixes without breaking functionality
Fixed-price quote or hourly rate with estimated hours
Earliest start date and completion timeline
Any questions about the scope
Note: We will conduct a brief video interview before hiring to discuss technical approach and ensure fit.
Project Type: Complex project
Estimated Budget: $3,000 - $8,000 (open to quotes)
Duration: 1-2 weeks
Experience Level: Expert
Time Commitment: Full-time or part-time (flexible)
Location: Worldwide (prefer overlap with US Eastern Time for check-ins)
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Project Title: SonarQube Security and Code Quality Remediation
Project Description:
We are preparing a health insurance web application for production launch and need an expert to remediate critical security vulnerabilities and code quality issues identified in SonarQube Cloud analysis.
Background:
Our overseas development team built a multi-component application consisting of:
Main web application (124k lines, JavaScript/CSS)
Backend API service (52k lines, Node.js/PL/SQL)
AI agent service (4.8k lines, Python/Docker)
Admin frontend (43k lines, TypeScript)
SonarQube analysis revealed 20 security vulnerabilities and nearly 4,000 reliability bugs across the codebase, with 36.6% code duplication in the main app. Two of four projects are failing the SonarQube Quality Gate.
Scope of Work:
Security Hardening (Critical Priority)
Remediate all 20 security vulnerabilities across 4 projects
Address OWASP Top 10 categories: injection, authentication, sensitive data exposure, etc.
Validate fixes with SonarQube re-scan
Code Quality Improvement
Reduce reliability bug count by 80%+ (focus on critical/major severity)
Refactor duplicated code from 36.6% to under 15%
Achieve passing Quality Gate on all projects
Quality Assurance
Ensure zero functional regressions
Provide comprehensive fix documentation
Deliver regression testing results
Required Expertise:
Deep SonarQube Cloud experience (not just on-premise)