Senior Database Administrator

Náplň práce, právomoci a zodpovednosti:
This position is hybrid, and you may be expected to go into an office 1-3 days per week.

We are AT&T’s Infrastructure Automation & Tools team, a vital part of the company’s technology infrastructure. Our team is responsible for managing and maintaining a diverse portfolio of enterprise database systems that support AT&T’s mission-critical applications and services. With a strong focus on Oracle, MySQL, and Microsoft SQL Server, we ensure the performance, security, and scalability of data platforms across the organization. We work collaboratively across departments to deliver innovative, resilient, and efficient database solutions that drive operational excellence. Our culture emphasizes technical expertise, continuous improvement, and a shared commitment to supporting AT&T’s strategic goals through reliable data management.

What You’ll Do

As a Senior Database Administrator, you’ll be a key player in ensuring the reliability, scalability, and performance of our enterprise-wide database platforms. This role is ideal for experienced professionals who thrive in high-pressure environments, excel at solving complex technical challenges, and are passionate about building resilient, secure, and high-performing systems that support millions of customers and critical business operations.

Database Reliability Engineering: Architect and implement proactive solutions to ensure high availability, fault tolerance, and optimal performance across Oracle, MySQL, and PostgreSQL environments.
Incident Response & Troubleshooting: Lead rapid response efforts for major database incidents, perform root cause analysis, and drive resolution to minimize business impact.
Performance Tuning & Optimization: Analyze system metrics, identify bottlenecks, and implement tuning strategies to ensure fast, efficient data access and query performance.
Database Architecture & Engineering: Design and evolve database schemas, storage strategies, and deployment models to support new applications and business growth.
Security & Compliance: Enforce robust security controls, manage access, and ensure compliance with internal policies and external regulations.
Technical Leadership: Promote best practices and foster a culture of operational excellence and continuous learning.
Cross-Functional Collaboration: Partner with application, infrastructure, and security teams to deliver integrated, scalable, and secure database solutions.
Documentation & Knowledge Sharing: Maintain detailed documentation, run-books, and post-incident reviews to promote transparency, learning, and operational maturity.
Cover working time: 9 am - 5 pm, with occasional flexibility as per business need
What You’ll Need

5+ years of hands-on experience managing and administering databases across multiple platforms.
Deep expertise in Oracle, MySQL, and PostgreSQL
Industry-recognized certifications in one or more database technologies
Strong command of performance tuning, backup and recovery strategies, and database security best practices.
Proven experience in designing, implementing, and managing the full lifecycle of enterprise database systems.
Sharp analytical and troubleshooting skills with a keen attention to detail and system reliability.
Solid academic foundation with a bachelor’s degree in Computer Science or a related field.
What You’ll Bring

A strategic mindset with the ability to lead complex database projects from concept to execution.
Proven experience mentoring junior team members and influencing technical decisions.
A proactive approach to problem-solving and continuous improvement.
Excellent communication and collaboration skills across technical and business teams.
Passion for data integrity, system reliability, and delivering high-impact solutions.

Zamestnanecké výhody, benefity:
Joining our team comes with amazing perks and benefits:

Annual Bonus & Annual Salary Increase
Meal Allowance (€4 / workday)
Cafeteria Benefits
Multisport card
MetLife Insurance
Pension Contribution
Special Occasions Contribution: €500 for events like marriage, childbirth, or retirement.
Annual Medical Plan: ProCare polyclinic
Service Anniversary Program
Family-friendly benefits
Volunteering day
Income Loss Compensation
Recreation Contribution: 55% of up to €500 spent, after 2 years of service.
Employee Assistance Program (free psychological, legal and financial counseling)
International Employee Referral Program
Various discounts