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SQL Developer

Harmonia

Salary not specified
Sep 4, 2025
McLean, VA, USA
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Harmonia Holdings Group, LLC is looking for a SQL Developer to build and maintain secure, high-performing database systems for mission-critical government applications, including driving database modernization efforts and cloud migration to AWS RDS and Aurora PostgreSQL, while ensuring compliance with federal security and data governance standards.

Requirements

  • Minimum of 3 years in SQL development with progressive responsibilities.
  • Deep expertise in complex SQL query design, optimization, and debugging.
  • Strong knowledge of database security, access control models, and regulatory compliance.
  • Proven success in migrating systems to AWS RDS or Aurora PostgreSQL.
  • Familiarity with Oracle, SQL Server, MySQL, or similar platforms.
  • Exposure to CI/CD practices and tools for managing database changes.
  • Experience with platforms like ServiceNow, and generating audit-ready documentation.

Responsibilities

  • Advanced SQL Development: Craft efficient and optimized SQL queries, stored procedures, functions, and views tailored to complex data processing needs.
  • System Integration: Work closely with application developers to embed database logic seamlessly into applications.
  • Performance Tuning: Analyze and resolve performance bottlenecks across development, testing, and production stages.
  • Cloud Migration: Support and lead efforts in moving legacy systems to AWS cloud databases like RDS or Aurora PostgreSQL.
  • Compliance & Security: Ensure all development aligns with federal data governance, access control, and security standards.
  • Documentation: Create and update comprehensive documentation such as data dictionaries, standard operating procedures (SOPs), and runbooks.
  • Mentorship: Provide technical guidance and mentorship to junior database developers and enforce best practices.

Other

  • Bachelors degree in Computer Science, Information Technology Management or Engineering, or other comparable Certifications or experience
  • Prior experience working in government or highly regulated sectors.
  • Demonstrated ability to work alongside development, infrastructure, and security teams.
  • Capable of diagnosing and resolving issues quickly under pressure.
  • Skilled in creating detailed documentation for auditing, training, and operational continuity.
  • Must be a U.S. citizen.
  • Must be able to obtain and maintain a Public Trust clearance.