We are seeking a Senior DBA/DBE Consultant to serve as the technical authority on SQL Server internals, performance engineering, and scalability for a leading U.S. financial technology company and regulated bank. This is a hands-on consulting role focused on diagnosing, optimizing, and scaling mission-critical transactional systems supporting high-volume financial operations.What You'll DoDiagnose complex SQL Server production issues using deep knowledge of storage engine internals, query optimization, SQLOS, memory management, transaction logging, and tempdb.Lead performance tuning initiatives for high-concurrency OLTP environments.Analyze wait statistics, execution plans, DMVs, Query Store, Extended Events, and performance counters.Design and optimize indexing, partitioning, statistics, and data lifecycle strategies.Resolve blocking, deadlocks, latch contention, parameter sniffing, plan regressions, and I/O bottlenecks.Design, implement, and troubleshoot Always On Availability Groups and SQL Server Replication.Support disaster recovery planning, validation, testing, and documentation.Develop automation using PowerShell, dbatools, T-SQL, and CI/CD pipelines.Collaborate with application engineers, SREs, architects,



and security teams.Provide mentorship to DBAs and developers while serving as a senior escalation point.Required Qualifications10+ years of SQL Server DBA or Database Engineering experience.5+ years in a senior or principal performance-focused role.Expert knowledge of SQL Server 2016–2022 internals.Experience supporting large-scale OLTP systems with multi-terabyte databases and thousands of TPS.Strong background in financial services, banking, or payments.Advanced T-SQL development and execution-plan analysis.Deep experience with partitioning, Always On Availability Groups, and Replication.Expertise with Query Store, Extended Events, DMVs, and wait-statistics methodologies.PowerShell automation experience.Experience operating within PCI-DSS, SOX, or similar regulated environments.Preferred QualificationsCloud performance and cost optimization.In-Memory OLTP and columnstore implementations.SQL Server on Linux or containers.Database DevOps tools such as SSDT, Flyway, or Liquibase.Experience with PostgreSQL, Cosmos DB, or Snowflake.DP-300, MCSE, MCM, or similar certifications.Community contributions through speaking, blogging, or open-source work.Technical EnvironmentSQL Server 2016–2022, T-SQL, Query Store, Extended Events, PowerShell, dbatools, Always On Availability Groups, Replication, WSFC, Windows Server, SAN/NVMe Storage, Azure, AWS, CI/CD.Core CompetenciesAnalytical rigorProduction ownershipEngineering judgmentExecutive communicationMentorship and knowledge transferWhy Join UsWork on mission-critical financial platforms operating at scale.Influence architecture and performance strategy across key systems.Partner with engineering, SRE, security, and architecture leaders.Drive measurable improvements in performance, reliability, and scalability.#J-18808-Ljbffr

📌 Senior Dba/Dbe Consultant (Colombia)
🏢 Unosquare
📍 Colombia