Database Engineer, Sr

Fiserv
Full_time•$124k-213k/year (USD)•Sunnyvale, United States

📍 Job Overview

  • Job Title: Database Engineer, Sr
  • Company: Fiserv
  • Location: Sunnyvale, California (Remote)
  • Job Type: Full-Time
  • Category: Database Administration
  • Date Posted: June 12, 2025
  • Experience Level: 10+ years
  • Remote Status: On-site (Remote work available)

🚀 Role Summary

  • Transform database infrastructure into a powerful, scalable engine driving Clover's payment ecosystem.
  • Ensure high reliability and performance for applications while supporting new feature development.
  • Collaborate with developers to co-design database strategies tailored to specific requirements.
  • Explore cutting-edge cloud technologies to enhance scalability, simplify management, and boost database performance.

📝 Enhancement Note: This role requires a strong focus on database performance tuning, schema changes, and data migrations in a growing sharded database environment. Familiarity with both RDBMS (MySQL) and NoSQL (MongoDB) environments is essential for success in this position.

💻 Primary Responsibilities

  • Database Management: Ensure high reliability and performance for applications while supporting new feature development.
  • Schema Changes: Perform schema changes without downtime in a growing sharded database environment.
  • Data Migrations: Manage data migrations between shards and create new clusters to support growth.
  • Performance Optimization: Resolve performance issues through analysis and optimization.
  • Automation: Automate routine DBA tasks to improve efficiency and reliability.
  • Feature Development: Support development of new features in both RDBMS and NoSQL environments.

🎓 Skills & Qualifications

Education: Bachelor's in Computer Science; Master's preferred.

Experience: 8+ years with MySQL, including replication, sharding, database performance tuning, and backups. 3+ years with NoSQL, preferably MongoDB with Atlas and sharding experience.

Required Skills:

  • MySQL (replication, sharding, performance tuning, backups)
  • NoSQL (MongoDB, Atlas, sharding)
  • Cloud-native database experience and DevOps familiarity
  • Docker and Kubernetes proficiency
  • Clear understanding of network constructs and network security

Preferred Skills:

  • Distributed systems architecture
  • High availability design
  • Performance optimization techniques
  • Database migration strategies

📊 Web Portfolio & Project Requirements

Portfolio Essentials:

  • Demonstrate proficiency in MySQL and MongoDB with case studies showcasing schema changes, data migrations, and performance optimization.
  • Highlight experience with cloud-native databases and DevOps practices.
  • Include examples of automated DBA tasks and routine management processes.

Technical Documentation:

  • Document database schema changes, data migrations, and performance optimizations.
  • Include any relevant scripts, queries, or code snippets demonstrating your technical capabilities.
  • Showcase your understanding of network security and high availability design principles.

💵 Compensation & Benefits

Salary Range: $124,300.00 - $213,100.00 per year (for employees in New Jersey, New York, and California)

Benefits:

  • Annual Incentive Opportunity (Cash Bonus and Equity Awards)

Working Hours: 40 hours per week, with flexible scheduling for deployment windows and maintenance.

📝 Enhancement Note: The salary range provided is specific to employees in New Jersey, New York, and California. Salaries for employees in other states may differ. The annual incentive opportunity may be delivered as a mix of cash bonus and equity awards in the company's sole discretion.

🎯 Team & Company Context

🏢 Company Culture

Industry: Fintech and payments, with a global presence and over 50,000 employees worldwide.

Company Size: Large (50,000+ employees)

Founded: 1984

Team Structure:

  • The Database team within Clover Infrastructure is responsible for managing and scaling SQL deployments in the cloud, heavily dependent on MySQL Databases and NoSQL MongoDB solutions.
  • Collaborates closely with developers to co-design database strategies tailored to specific requirements.

Development Methodology:

  • Agile/Scrum methodologies with sprint planning for database projects.
  • Code review, testing, and quality assurance practices.
  • Deployment strategies, CI/CD pipelines, and server management.

Company Website: Fiserv

📝 Enhancement Note: Fiserv is a global leader in Fintech and payments, moving money and information in a way that moves the world. They connect financial institutions, corporations, merchants, and consumers to one another millions of times a day, enabling seamless transactions and driving business growth.

📈 Career & Growth Analysis

Database Administration Career Level: Senior Database Engineer, responsible for transforming database infrastructure into a powerful, scalable engine driving Clover's payment ecosystem.

Reporting Structure: Reports directly to the Database Team Lead within Clover Infrastructure.

Technical Impact: Directly impacts how small and medium businesses process $310 billion in card transactions worldwide, turning technical challenges into strategic opportunities that support business growth and innovation.

Growth Opportunities:

  • Explore cutting-edge cloud technologies to enhance scalability, simplify management, and boost database performance.
  • Collaborate with developers to co-design database strategies tailored to specific requirements.
  • Gain experience with distributed systems architecture, high availability design, and performance optimization techniques.

📝 Enhancement Note: This role offers significant growth opportunities in exploring cutting-edge cloud technologies, collaborating with developers, and gaining experience with distributed systems architecture and performance optimization techniques.

🌐 Work Environment

Office Type: On-site, with remote work available.

Office Location(s): Sunnyvale, California (Remote work available)

Workspace Context:

  • Collaborative workspace with a forward-looking approach to database management and cloud technologies.
  • Cross-functional collaboration with developers, ensuring seamless performance and reliability for applications.
  • Exploration of cutting-edge cloud technologies to enhance scalability, simplify management, and boost database performance.

Work Schedule: Flexible scheduling for deployment windows, maintenance, and project deadlines.

📝 Enhancement Note: This role offers a collaborative work environment with a forward-looking approach to database management and cloud technologies. The flexible work schedule allows for deployment windows, maintenance, and project deadlines.

📄 Application & Technical Interview Process

Interview Process:

  1. Technical Assessment: Demonstrate proficiency in MySQL and MongoDB with case studies showcasing schema changes, data migrations, and performance optimization.
  2. Cultural Fit Assessment: Discuss your experience with cloud-native databases, DevOps practices, and network security.
  3. Final Evaluation: Present your technical impact and database management strategies.

Portfolio Review Tips:

  • Highlight your proficiency in MySQL and MongoDB with case studies demonstrating schema changes, data migrations, and performance optimization.
  • Include any relevant scripts, queries, or code snippets demonstrating your technical capabilities.
  • Showcase your understanding of network security and high availability design principles.

Technical Challenge Preparation:

  • Brush up on your MySQL and MongoDB skills, focusing on schema changes, data migrations, and performance optimization.
  • Familiarize yourself with cloud-native databases, DevOps practices, and network security principles.
  • Prepare for case studies and technical assessments that focus on your database management strategies and technical impact.

ATS Keywords: MySQL, MongoDB, Cloud Technologies, DevOps, Docker, Kubernetes, Network Security, Schema Changes, Data Migrations, Performance Optimization, Distributed Systems Architecture, High Availability Design.

📝 Enhancement Note: The interview process for this role focuses on technical assessments, cultural fit, and final evaluation. Prepare for case studies and technical assessments that showcase your proficiency in MySQL and MongoDB, as well as your understanding of cloud-native databases, DevOps practices, and network security principles.

🛠 Technology Stack & Web Infrastructure

Database Technologies:

  • MySQL (replication, sharding, performance tuning, backups)
  • NoSQL (MongoDB, Atlas, sharding)

Cloud Technologies:

  • AWS, Azure, or Google Cloud Platform (specific cloud provider not specified)

DevOps Tools:

  • Docker and Kubernetes for containerization and orchestration
  • Familiarity with CI/CD pipelines and automated deployment strategies

Networking Tools:

  • Clear understanding of network constructs and network security principles

📝 Enhancement Note: This role requires proficiency in MySQL and MongoDB, as well as familiarity with cloud-native databases, DevOps practices, and network security principles. Experience with AWS, Azure, or Google Cloud Platform is also beneficial.

👥 Team Culture & Values

Database Administration Values:

  • High reliability and performance for applications
  • Seamless transactions for over 1M merchants worldwide
  • Processing $310 billion in card transactions annually
  • Transforming technical challenges into strategic opportunities

Collaboration Style:

  • Cross-functional collaboration with developers to co-design database strategies tailored to specific requirements
  • Exploration of cutting-edge cloud technologies to enhance scalability, simplify management, and boost database performance
  • Forward-looking approach to database management and cloud technologies

📝 Enhancement Note: The team culture for this role emphasizes collaboration with developers, exploration of cutting-edge cloud technologies, and a forward-looking approach to database management and cloud technologies.

⚡ Challenges & Growth Opportunities

Technical Challenges:

  • Ensuring high reliability and performance for applications while supporting new feature development
  • Performing schema changes without downtime in a growing sharded database environment
  • Managing data migrations between shards and creating new clusters to support growth
  • Resolving performance issues through analysis and optimization
  • Automating routine DBA tasks to improve efficiency and reliability

Learning & Development Opportunities:

  • Exploring cutting-edge cloud technologies to enhance scalability, simplify management, and boost database performance
  • Collaborating with developers to co-design database strategies tailored to specific requirements
  • Gaining experience with distributed systems architecture, high availability design, and performance optimization techniques

📝 Enhancement Note: This role presents significant technical challenges and learning opportunities, focusing on database performance tuning, schema changes, data migrations, and performance optimization. Exploring cutting-edge cloud technologies and collaborating with developers also offers valuable growth opportunities.

💡 Interview Preparation

Technical Questions:

  1. Database Performance Tuning: Describe your experience with database performance tuning, focusing on MySQL and MongoDB. Provide specific examples of optimization techniques and their impact on application performance.
  2. Schema Changes: Explain your process for performing schema changes without downtime in a growing sharded database environment. Discuss any challenges you've faced and how you overcame them.
  3. Data Migrations: Walk through a data migration project you've worked on, highlighting the strategies you used to ensure minimal downtime and data integrity.

Company & Culture Questions:

  1. Cloud Technologies: Discuss your experience with cloud-native databases and DevOps practices. Explain how you've leveraged these technologies to enhance scalability, simplify management, and boost database performance.
  2. Network Security: Describe your understanding of network constructs and network security principles. Provide examples of how you've implemented network security measures in your previous roles.

Portfolio Presentation Strategy:

  • Highlight your proficiency in MySQL and MongoDB with case studies demonstrating schema changes, data migrations, and performance optimization.
  • Include any relevant scripts, queries, or code snippets demonstrating your technical capabilities.
  • Showcase your understanding of network security and high availability design principles.

📝 Enhancement Note: The interview preparation for this role focuses on technical questions related to database performance tuning, schema changes, data migrations, and cloud technologies. Prepare for company-specific questions related to cloud-native databases, DevOps practices, and network security principles.

📌 Application Steps

To apply for this Database Engineer, Sr position at Fiserv:

  1. Customize Your Portfolio: Highlight your proficiency in MySQL and MongoDB with case studies showcasing schema changes, data migrations, and performance optimization. Include any relevant scripts, queries, or code snippets demonstrating your technical capabilities. Showcase your understanding of network security and high availability design principles.
  2. Optimize Your Resume: Emphasize your experience with MySQL, MongoDB, cloud-native databases, DevOps practices, and network security. Highlight your technical skills and achievements relevant to the role.
  3. Prepare for Technical Interviews: Brush up on your MySQL and MongoDB skills, focusing on schema changes, data migrations, and performance optimization. Familiarize yourself with cloud-native databases, DevOps practices, and network security principles. Prepare for case studies and technical assessments that focus on your database management strategies and technical impact.
  4. Research the Company: Learn about Fiserv's role in the Fintech and payments industry, their global presence, and their commitment to driving business growth and innovation. Understand the company's culture and values, and how they support small and medium businesses worldwide.

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

Application Requirements

Bachelor's in Computer Science is required, with a Master's preferred. Candidates should have 8+ years of experience with MySQL and 3+ years with NoSQL, preferably MongoDB.