Senior DBA

B2TECHAgios AthanasiosJob.bopublished 11/10/2026
Must-have:AWSCloudDevOpsCI/CDSecuritySeniorLeadHybrid

B2Tech is looking for a Senior Database Administrator/Engineer to take technical ownership of our database environments and ensure they remain reliable, secure, scalable, and high-performing.

You’ll work closely with Development, Architecture, and DevOps teams to solve complex database challenges, lead operational improvements, and shape database design, deployment, and automation practices. This is a hands-on senior role with responsibility for production reliability, technical guidance, and continuous improvement.

RESPONSIBILITIES:

  • Own the operation, maintenance, and continuous improvement of Microsoft SQL Server production environments.
  • Proactively monitor database health, performance, availability, and capacity, identifying risks and addressing issues before they affect production.
  • Lead the investigation and resolution of complex database incidents, perform root cause analysis, and implement lasting improvements.
  • Drive performance optimization through query tuning, indexing strategies, execution plan analysis, and database configuration improvements.
  • Design, implement, and regularly test backup, recovery, High Availability, and Disaster Recovery solutions against agreed recovery objectives.
  • Manage database security, permissions, and access controls, applying least-privilege principles and maintaining clear access procedures.
  • Plan and execute database upgrades, deployments, schema changes, and migrations, including validation and rollback strategies.
  • Review T-SQL, pull requests, and migration scripts for performance, security, maintainability, and production readiness.
  • Partner with Development and Architecture teams on database design, data access patterns, and scalability.
  • Work with DevOps teams to strengthen database CI/CD, release processes, and infrastructure automation.
  • Improve database observability, alerting, and automation to reduce manual work and operational risk.
  • Define and promote database engineering standards, and mentor colleagues through technical guidance and knowledge sharing.
  • Maintain clear documentation, operational procedures, and runbooks, and ensure they reflect tested practices.

REQUIREMENTS:

  • 5+ years of experience in database administration, database engineering, or a similar role, with substantial hands-on Microsoft SQL Server production experience.
  • Advanced T-SQL skills, including writing, reviewing, and optimizing complex queries and stored procedures.
  • Strong understanding of SQL Server performance, including execution plans, indexing, statistics, locking, blocking, and deadlocks.
  • Proven ability to independently troubleshoot complex production issues and lead incidents through resolution and follow-up.
  • Hands-on experience implementing and maintaining backup, restore, and HA/DR solutions, including recovery testing.
  • Strong knowledge of database security, access management, and operational best practices.
  • Experience planning and delivering database deployments, upgrades, schema changes, and migrations.
  • Practical experience with source control, pull request reviews, and database CI/CD processes.
  • Experience automating database operations using T-SQL, PowerShell, or similar tools.
  • Strong analytical skills and the ability to evaluate technical trade-offs, prioritize risks, and drive improvements.
  • Clear communication skills, with experience collaborating across technical teams and mentoring colleagues.

PREFERENCES:

  • Experience with PostgreSQL and/or MongoDB.
  • Experience with AWS or another cloud platform, including managed database services.
  • Experience with Grafana or similar monitoring and observability tools.
  • Familiarity with Terraform and Infrastructure-as-Code.
  • Experience working in a DataOps or DevOps environment.
  • Experience supporting large-scale, high-throughput, or business-critical database platforms.

BENEFITS:

  • Annual Discretionary Performance Bonus πŸ’΅
  • Annual Salary Review πŸ“ˆ
  • 21 Days of Paid Leave πŸ–οΈ
  • Hybrid Working Model 🏠
  • Semi-Flexible Working Hours πŸ•’
  • Provident Fund πŸ’°
  • Medical Insurance Coverage β€οΈβ€πŸ©Ή
  • Subsidized Sports Benefits App Subscription πŸ‹οΈ
  • €100 Monthly Lunch Allowance, Plus €9 per In-Office Day 🍽️
  • Friday Breakfasts πŸ₯
  • Biweekly Lunches 🍴
  • Biweekly Happy Hours 🍻
  • Monthly Welfare Events πŸŽ‰
  • Exciting Career Paths 🎯
  • Personalized Learning and Development Programs πŸŽ“
  • Birthday Leave πŸŽ‚
  • Marriage Leave πŸ’
  • Service Awards Gifts πŸ…
  • A Variety of Employee Perks 🎁