Senior Principal Database Administrator

About the role

For more than 40 years, Accelya has been the industry's partner for change, simplifying airline financial and commercial processes and empowering the air transport community to take better control of the future. Whether partnering with IATA on industry-wide initiatives or enabling digital transformation to simplify airline processes, Accelya drives the airline industry forward and proudly puts control back in the hands of airlines so they can move further, faster. Role Purpose As a Principal Database Administrator at Accelya, you will serve as the organization's highest-level hands-on database engineering expert, responsible for designing, implementing, securing, and supporting mission-critical database platforms. You will lead by execution, independently performing the organization's most complex database and cloud engineering initiatives while partnering with Engineering, Cloud Operations, Security, and Platform teams to ensure highly available, secure, resilient, and performant database services. This role requires deep expertise in Microsoft SQL Server, AWS cloud technologies, automation, and production operations, while providing technical leadership through engineering excellence and mentorship. Duties & Responsibilities Design, implement, administer, and support enterprise Microsoft SQL Server environments across on-premises and AWS cloud platforms. Independently plan and execute complex database upgrades, migrations, infrastructure refreshes, disaster recovery exercises, and modernization initiatives. Design, implement, and support highly available database architectures utilizing SQL Server Always On Availability Groups, clustering, replication, backup, and recovery technologies. Lead the investigation and resolution of complex production database and cloud infrastructure incidents, performing root cause analysis and implementing permanent corrective actions. Optimize database performance through query tuning, indexing strategies, execution plan analysis, statistics management, and proactive performance monitoring. Design and implement database security best practices, auditing, encryption, and regulatory compliance controls. Develop automation to improve operational efficiency using T-SQL, PowerShell, Python, and Infrastructure as Code technologies. Support cloud infrastructure hosting database platforms, including Amazon EC2, Amazon RDS, S3, networking, IAM, and related AWS services. Support Infrastructure as Code (IaC) initiatives using Terraform, AWS CloudFormation, or similar automation technologies. Support enterprise data migration, replication, and integration technologies, including AWS Database Migration Service (DMS) and other ETL platforms. Collaborate with Cloud Engineering, Platform Operations, Security, Development, and Architecture teams to design, implement, and support scalable database solutions. Provide technical mentorship and guidance to database engineers while leading through hands-on execution and engineering excellence. Participate in production support, maintenance activities, disaster recovery testing, and on-call responsibilities for critical business systems. Develop and maintain technical documentation, operational procedures, and engineering standards to improve platform reliability and operational maturity. Required Experience & Skills 15+ years of enterprise database administration experience supporting large-scale, mission-critical production environments. Expert-level administration of Microsoft SQL Server (2016-2025), including installation, configuration, patching, upgrades, migrations, performance tuning, security, and troubleshooting. Expert knowledge of SQL Server Always On Availability Groups, clustering, replication, backup/recovery, disaster recovery, and high availability architectures. Extensive hands-on experience designing, administering, and troubleshooting SQL Server in AWS, including Amazon EC2, Amazon RDS, and S3. Strong understanding of AWS networking, IAM, and cloud infrastructure supporting enterprise database platforms. Demonstrated ability to independently plan and execute complex production database upgrades, migrations, infrastructure refreshes, and disaster recovery activities. Expert-level experience diagnosing and resolving complex production issues involving SQL Server, Windows Server, AWS infrastructure, networking, storage, blocking, deadlocks, and performance bottlenecks. Advanced expertise in query tuning, indexing strategies, execution plan analysis, Query Store, Extended Events, DMVs, and SQL Server internals. Strong experience automating database administration using T-SQL, PowerShell, Python, or similar scripting languages. Experience supporting Infrastructure as Code (IaC) using Terraform, AWS CloudFormation, or similar automation technologies. Working knowledge of PostgreSQL, DynamoDB, and other cloud database technologies. Experience supporting data migration, replication, and integration technologi

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