📍 Job Overview

Job Title: Oracle Database Administrator Sr. Specialist
Company: Nasdaq
Location: Lisbon, Portugal
Job Type: Full-Time, Hybrid
Category: Database Administration
Date Posted: June 26, 2025
Experience Level: 5-10 years
Remote Status: On-site/Hybrid

🚀 Role Summary

Maintain and optimize internal database environments, ensuring high availability, security, and reliability.
Collaborate with development and infrastructure teams to design scalable and efficient database solutions.
Provide expert-level support and guidance to internal DBA teams and external clients.
Troubleshoot complex performance issues across multiple database platforms, including Oracle, PostgreSQL, MSSQL, and SYBASE.
Analyze new features and databases for implementation in Nasdaq's software product.

📝 Enhancement Note: This role requires a senior-level database administrator with a strong focus on Oracle, as well as proficiency in other database systems. The position involves working with diverse teams and clients, necessitating excellent communication skills and a customer-centric approach.

💻 Primary Responsibilities

Database Performance Tuning & Optimization: Perform advanced database performance tuning and optimization across Oracle, PostgreSQL, MSSQL, and SYBASE environments.
Expert Support & Guidance: Provide expert-level support and guidance to internal DBA teams and external clients.
High Availability & Security: Ensure high availability, security, and reliability of database systems.
Performance Metrics Analysis: Monitor and analyze database performance metrics, identifying and resolving bottlenecks.
Collaboration & Solution Design: Collaborate with development and infrastructure teams to design scalable and efficient database solutions.
Database Migrations & Upgrades: Support database migrations, upgrades, and patching activities.
Documentation & Knowledge Sharing: Maintain documentation for database configurations, procedures, and FAQ.

🎓 Skills & Qualifications

Education: Bachelor's degree in Computer Science, Information Technology, or a related field. Relevant certifications, such as Oracle Certified Professional (OCP), are also valuable.

Experience: 5-10 years of experience as a Database Administrator, with a solid focus on Oracle. Proficiency in other database systems, such as PostgreSQL, MSSQL, SYBASE, MariaDB, and MySQL.

Required Skills:

Strong SQL scripting and query optimization skills.
Proven experience in performance troubleshooting and root cause analysis.
Solid understanding of Linux/Unix operating systems.
Good soft skills and a strong commitment to teamwork in a fast-paced environment.
Experience with cloud platforms such as Oracle Cloud Infrastructure (OCI) and Amazon Web Services (AWS) is considered a plus.
Familiarity with database monitoring tools and automation frameworks is considered a plus.

Preferred Skills:

Experience with database design and architecture.
Knowledge of financial services industry databases and systems.
Familiarity with Agile methodologies and development processes.

📊 Web Portfolio & Project Requirements

Portfolio Essentials:

Demonstrate experience in database performance tuning, optimization, and troubleshooting.
Showcase proficiency in SQL scripting and query optimization.
Highlight experience with Oracle, PostgreSQL, MSSQL, and SYBASE environments.
Display knowledge of Linux/Unix operating systems and cloud platforms.

Technical Documentation:

Provide documentation for database configurations, procedures, and FAQ.
Include case studies or examples of complex performance issues resolved.
Demonstrate understanding of database security best practices.

💵 Compensation & Benefits

Salary Range: Competitive monthly base salary based on experience. The estimated salary range for this role in Lisbon, Portugal, is €4,500 - €6,000 per month (gross), based on market research and web technology industry standards.

Benefits:

Annual monetary bonus.
Opportunity to become a Nasdaq shareholder.
Employee Stock Purchase Program (Nasdaq stocks with a discount).
III pillar pension plan with additional contribution from Nasdaq.
Flexible health insurance program.
Flexible working schedule and hybrid way of work.
Additional paid leave days after 2 years of working at Nasdaq.
Flex day program (up to 6 paid days off a year).
Internal mentorship program.
Wide selection of online learning resources.

Working Hours: 40 hours per week, with flexible scheduling and a hybrid work model.

📝 Enhancement Note: The salary range provided is an estimate based on market research and web technology industry standards. Actual salary may vary depending on the candidate's experience and skills.

🎯 Team & Company Context

🏢 Company Culture

Industry: Financial Services Technology

Company Size: Large (10,001+ employees)

Founded: 1971

Team Structure:

The DBA team is scaling rapidly due to increased client wins and demand, supporting clients globally.
The team serves both external clients (banks and financial institutions worldwide) and internal clients (development teams).
The role involves working with diverse teams and clients, necessitating excellent communication skills and a customer-centric approach.

Development Methodology:

Agile methodologies and development processes are used to ensure efficient and effective collaboration between teams.
Database administrators work closely with development teams to design scalable and efficient database solutions.

Company Website: www.nasdaq.com

📝 Enhancement Note: Nasdaq is a large, global financial services technology company with a strong focus on customer-centricity and continuous growth. The company offers excellent opportunities for career development and growth.

📈 Career & Growth Analysis

Web Technology Career Level: Senior Database Administrator

Reporting Structure: The role reports directly to the Database Administration Manager and works closely with development and infrastructure teams.

Technical Impact: The role has a significant impact on the performance, security, and reliability of Nasdaq's database environments, as well as the efficiency and effectiveness of the development process.

Growth Opportunities:

Technical Skill Development: The role offers opportunities to develop technical skills in emerging database technologies and cloud platforms.
Technical Leadership: With experience and strong performance, the role may lead to technical leadership positions within the DBA team or broader technology organization.
Career Progression: The role provides a pathway for career progression within Nasdaq's technology organization, with opportunities to move into management, architecture, or other specialized roles.

📝 Enhancement Note: This role offers excellent opportunities for technical skill development, technical leadership, and career progression within Nasdaq's technology organization.

🌐 Work Environment

Office Type: Modern, collaborative office environment with state-of-the-art technology and amenities.

Office Location(s): Lisbon, Portugal

Workspace Context:

The hybrid work model allows for a balance between on-site collaboration and remote work.
The office provides a collaborative workspace with multiple monitors and testing devices available.
The work environment encourages knowledge sharing, technical mentoring, and continuous learning.

Work Schedule: Flexible working hours with a hybrid work model, allowing for a balance between on-site collaboration and remote work.

📝 Enhancement Note: Nasdaq's work environment fosters collaboration, knowledge sharing, and continuous learning, providing an ideal setting for database administrators to thrive.

📄 Application & Technical Interview Process

Interview Process:

Phone/Screening: A brief phone or video call to assess communication skills and basic technical knowledge.
Technical Assessment: A hands-on technical assessment involving SQL scripting, query optimization, and performance tuning exercises.
Behavioral Interview: An interview focused on behavioral questions, assessing problem-solving skills, teamwork, and customer-centricity.
Final Interview: A final interview with the hiring manager or a panel of stakeholders to discuss the candidate's fit for the role and the team.

Portfolio Review Tips:

Highlight experience in database performance tuning, optimization, and troubleshooting.
Include case studies or examples of complex performance issues resolved.
Demonstrate proficiency in SQL scripting and query optimization.
Showcase knowledge of Linux/Unix operating systems and cloud platforms.

Technical Challenge Preparation:

Brush up on SQL scripting, query optimization, and performance tuning skills.
Familiarize yourself with Oracle, PostgreSQL, MSSQL, and SYBASE environments.
Prepare for behavioral interview questions, focusing on problem-solving, teamwork, and customer-centricity.

ATS Keywords: Oracle, Database Administration, SQL, Performance Tuning, Query Optimization, Linux, Unix, Cloud Platforms, Agile, Customer-Centricity, Technical Leadership, Career Progression

📝 Enhancement Note: The interview process for this role is designed to assess the candidate's technical skills, problem-solving abilities, and customer-centric approach. Preparing for the technical assessment and behavioral interview will be crucial for success.

🛠 Technology Stack & Web Infrastructure

Database Technologies:

Oracle (primary focus)
PostgreSQL
MSSQL
SYBASE
MariaDB
MySQL

Cloud Platforms:

Oracle Cloud Infrastructure (OCI)
Amazon Web Services (AWS)

Operating Systems:

Linux
Unix

Database Monitoring Tools & Automation Frameworks:

Various tools and frameworks used within Nasdaq's technology stack.

📝 Enhancement Note: This role requires proficiency in Oracle, as well as other database systems, cloud platforms, and operating systems. Familiarity with database monitoring tools and automation frameworks is considered a plus.

👥 Team Culture & Values

Database Administration Values:

Customer-centric approach and focus on client satisfaction.
Continuous learning and improvement in database administration skills and knowledge.
Collaborative teamwork and knowledge sharing.
Attention to detail and commitment to quality in database management and performance optimization.

Collaboration Style:

Cross-functional integration between database administrators, development teams, and stakeholders.
Code review culture and peer programming practices.
Knowledge sharing, technical mentoring, and continuous learning.

📝 Enhancement Note: Nasdaq's database administration team values a customer-centric approach, continuous learning, collaboration, and attention to detail. These values foster a strong, supportive team culture focused on delivering high-quality database solutions.

⚡ Challenges & Growth Opportunities

Technical Challenges:

Troubleshooting complex performance issues across multiple database platforms.
Designing and implementing scalable and efficient database solutions.
Analyzing new features and databases for implementation in Nasdaq's software product.

Learning & Development Opportunities:

Technical Skill Development: Opportunities to develop technical skills in emerging database technologies and cloud platforms.
Conference Attendance & Certification: Nasdaq supports employee attendance at relevant conferences and certifications to enhance technical skills and knowledge.
Technical Mentorship & Leadership: Opportunities for technical mentoring and leadership within the DBA team and broader technology organization.

📝 Enhancement Note: This role presents various technical challenges and learning opportunities, allowing database administrators to grow their skills and advance their careers within Nasdaq's technology organization.

💡 Interview Preparation

Technical Questions:

SQL & Query Optimization: Prepare for questions related to SQL scripting, query optimization, and performance tuning.
Database Administration: Brush up on your knowledge of Oracle, PostgreSQL, MSSQL, and SYBASE environments, as well as Linux/Unix operating systems and cloud platforms.
Problem-Solving: Practice problem-solving techniques and be prepared to discuss your approach to troubleshooting complex performance issues.

Company & Culture Questions:

Research Nasdaq's company culture, values, and mission.
Prepare questions about the DBA team, its structure, and dynamics.
Consider how your skills and experience align with the role and Nasdaq's technology organization.

Portfolio Presentation Strategy:

Highlight your experience in database performance tuning, optimization, and troubleshooting.
Include case studies or examples of complex performance issues resolved.
Demonstrate proficiency in SQL scripting and query optimization.
Showcase knowledge of Linux/Unix operating systems and cloud platforms.

📝 Enhancement Note: Preparing for the technical and company-related questions will be crucial for success in the interview process. Researching Nasdaq's company culture and aligning your skills and experience with the role will help you make a strong impression.

📌 Application Steps

To apply for this Oracle Database Administrator Sr. Specialist position:

Submit your application through the application link provided.
Customize your resume and portfolio to highlight your relevant experience in database performance tuning, optimization, and troubleshooting.
Prepare for the phone/screening, technical assessment, behavioral interview, and final interview by reviewing the interview preparation tips provided.
Research Nasdaq's company culture, values, and mission to ensure a strong fit for the role and the organization.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and web technology industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.

Oracle Database Administrator Sr. Specialist