Senior Site Reliability Engineer (SRE) at Fiserv

📍 Job Overview

Job Title: Senior Site Reliability Engineer (SRE)
Company: Fiserv
Location: Berkeley Heights, New Jersey & Omaha, Nebraska
Job Type: Hybrid (On-site Monday through Friday)
Category: DevOps & Infrastructure
Date Posted: August 9, 2025
Experience Level: 10+ years
Remote Status: On-site with hybrid flexibility

🚀 Role Summary

Lead production performance optimization, incident response, and reliability engineering efforts
Collaborate cross-functionally to ensure performance improvements are integrated into deployment pipelines and release cycles
Evaluate infrastructure readiness during client onboarding and forecast capacity needs to support future growth
Utilize advanced observability tools for monitoring, diagnostics, and anomaly detection

📝 Enhancement Note: This role combines performance engineering and site reliability engineering, focusing on production environments and client onboarding processes. The successful candidate will possess deep technical expertise across multiple layers of the stack and thrive in dynamic environments.

💻 Primary Responsibilities

Production Performance Optimization: Conduct comprehensive performance assessments, identify inefficiencies, and implement system optimizations across application code, JVM configurations, database queries, and infrastructure components.
Monitoring, Observability & Diagnostics: Utilize advanced tools like Splunk, Dynatrace, Extrahop, Foglight, and Wireshark to monitor system health, detect anomalies, and perform deep root cause analysis.
Client Onboarding & Infrastructure Planning: Participate in client onboarding processes, evaluate infrastructure readiness, and collaborate with infrastructure teams to provision new hardware and optimize resource allocation.
Incident Response & Reliability Engineering: Act as a senior technical lead during production incidents, driving rapid triage, root cause identification, and resolution efforts. Lead post-incident analysis to identify systemic issues and implement long-term solutions.

🎓 Skills & Qualifications

Education: Bachelor's degree in computer science, Engineering, or a related field

Experience: 7+ years of hands-on experience in performance engineering, site reliability engineering, or a closely related technical discipline

Required Skills:

Advanced proficiency in SQL and database performance tuning (e.g., Oracle, PostgreSQL, MySQL)
Deep understanding of JVM internals, memory management, and garbage collection strategies
Strong programming skills in Java and scripting languages such as Python or Bash
Familiarity with cloud platforms (AWS, Azure, GCP) and container orchestration technologies (e.g., Kubernetes, Docker)
Demonstrated experience with Splunk, Dynatrace, Extrahop, Foglight, and Wireshark in production environments
Exceptional analytical, problem-solving, communication, and collaboration skills

Preferred Skills:

Experience in infrastructure capacity planning and forecasting
Background in incident management, postmortem analysis, and continuous improvement initiatives
Relevant certifications in cloud technologies, performance engineering, or SRE practices (e.g., Google SRE, AWS Certified Solutions Architect)

📊 Web Portfolio & Project Requirements

Portfolio Essentials: Demonstrate expertise in performance tuning, system optimization, and incident response through relevant projects and case studies.
Technical Documentation: Showcase your ability to document performance assessments, system optimizations, and incident response processes. Highlight your understanding of SQL queries, JVM configurations, and infrastructure components.

💵 Compensation & Benefits

Salary Range: $128,000.00 - $216,000.00 per year (for employees in New Jersey, New York, and California)

Benefits:

Annual Incentive Opportunity (delivered as a mix of cash bonus and equity awards)
Comprehensive benefits package (not specified in the job listing)

Working Hours: Full-time, with on-site presence Monday through Friday

🎯 Team & Company Context

🏢 Company Culture

Industry: Fintech and payments, moving money and information securely and reliably worldwide

Company Size: Large (global leader with multiple locations)

Founded: 1984 (as First Data Corporation, rebranded as Fiserv in 2019)

Team Structure:

Cross-functional teams, including development, QA, infrastructure, and operations
Collaborative environment with a focus on client experiences and business growth

Development Methodology:

Agile/Scrum methodologies for development and release cycles
Continuous integration and continuous deployment (CI/CD) pipelines for automated testing and deployment
Regular incident response and postmortem analysis for continuous improvement

Company Website: https://www.fiserv.com/

📝 Enhancement Note: Fiserv emphasizes in-person collaboration to help employees grow their careers while shaping the future of fintech. This role is on-site Monday through Friday, with hybrid flexibility for other days of the week.

📈 Career & Growth Analysis

Web Technology Career Level: Senior Site Reliability Engineer, responsible for leading performance and reliability efforts across multiple layers of the stack

Reporting Structure: Senior Site Reliability Engineer, reporting to the Director of Site Reliability Engineering or a similar role

Technical Impact: Significant impact on production system performance, reliability, and scalability. Collaborates with cross-functional teams to ensure performance improvements are integrated into deployment pipelines and release cycles.

Growth Opportunities:

Technical leadership roles in Site Reliability Engineering or Performance Engineering
Specialization in emerging technologies and cloud platforms
Mentorship and knowledge-sharing opportunities within the team and across the organization

📝 Enhancement Note: This role offers opportunities for career progression in technical leadership, specialization, and mentorship within Fiserv's global fintech organization.

🌐 Work Environment

Office Type: On-site, with hybrid flexibility for certain days of the week

Office Location(s): Berkeley Heights, New Jersey, and Omaha, Nebraska

Workspace Context:

Collaborative workspace with cross-functional teams, including development, QA, and infrastructure
Access to advanced monitoring, observability, and diagnostic tools for system performance and anomaly detection
Opportunities for professional development and growth within the organization

Work Schedule: Full-time, with on-site presence Monday through Friday and hybrid flexibility for other days of the week

📝 Enhancement Note: Fiserv emphasizes in-person collaboration to help employees grow their careers while shaping the future of fintech. This role is on-site Monday through Friday, with hybrid flexibility for other days of the week.

📄 Application & Technical Interview Process

Interview Process:

Technical Phone Screen: Assess programming skills, problem-solving abilities, and familiarity with relevant tools and technologies (e.g., SQL, JVM, cloud platforms, monitoring tools)
On-site Technical Assessment: Conduct a deep dive into the candidate's performance engineering and site reliability engineering skills, focusing on system optimization, incident response, and infrastructure planning
Behavioral and Cultural Fit Interview: Evaluate the candidate's communication, collaboration, and problem-solving skills, as well as their cultural fit within the team and organization
Final Review: Present the candidate's qualifications, technical skills, and cultural fit to the hiring manager and make a final hiring decision

Portfolio Review Tips:

Highlight relevant projects and case studies demonstrating expertise in performance tuning, system optimization, and incident response
Showcase your ability to document performance assessments, system optimizations, and incident response processes
Emphasize your understanding of SQL queries, JVM configurations, and infrastructure components

Technical Challenge Preparation:

Brush up on SQL, JVM internals, and cloud platform knowledge (AWS, Azure, GCP)
Familiarize yourself with relevant monitoring, observability, and diagnostic tools (Splunk, Dynatrace, Extrahop, Foglight, Wireshark)
Prepare for incident response scenarios, system optimization challenges, and infrastructure planning exercises

ATS Keywords: Performance Engineering, Site Reliability Engineering, SQL, Database Performance Tuning, JVM Internals, Memory Management, Java, Python, Bash, Cloud Platforms, Kubernetes, Docker, Splunk, Dynatrace, Extrahop, Foglight, Wireshark, Incident Response, System Optimization, Infrastructure Planning, Agile, Scrum, CI/CD, Fintech, Payments, Hybrid Work, On-site, Technical Leadership, Career Progression

📝 Enhancement Note: Fiserv uses an Applicant Tracking System (ATS) to manage job applications. Including relevant keywords in your resume and application materials can help your qualifications stand out to the hiring team.

🛠 Technology Stack & Web Infrastructure

Backend & Server Technologies:

Cloud platforms: AWS, Azure, GCP
Container orchestration: Kubernetes, Docker
Monitoring, observability, and diagnostic tools: Splunk, Dynatrace, Extrahop, Foglight, Wireshark

Development & DevOps Tools:

Version control: Git (not specified in the job listing)
CI/CD pipelines: Jenkins, CircleCI, or similar tools (not specified in the job listing)
Infrastructure as Code (IaC) tools: Terraform, CloudFormation, or similar tools (not specified in the job listing)

📝 Enhancement Note: Fiserv uses various tools and technologies for development, deployment, and infrastructure management. Familiarity with these tools and technologies is essential for success in this role.

👥 Team Culture & Values

Web Development Values:

Client Focus: Prioritize client experiences and business growth through robust and high-performing systems
Collaboration: Work effectively across cross-functional teams, including development, QA, and infrastructure
Continuous Improvement: Proactively identify and resolve performance bottlenecks, optimize system performance, and enhance reliability
Technical Excellence: Demonstrate deep technical expertise across multiple layers of the stack and maintain a strong commitment to learning and growth

Collaboration Style:

Cross-functional Integration: Collaborate with development, QA, and infrastructure teams to ensure performance improvements are integrated into deployment pipelines and release cycles
Code Review Culture: Conduct regular code reviews and pair programming sessions to maintain high coding standards and knowledge-sharing opportunities
Knowledge Sharing: Encourage mentorship and technical skill development within the team and across the organization

📝 Enhancement Note: Fiserv's team culture emphasizes client focus, collaboration, and continuous improvement. This role requires strong communication, collaboration, and problem-solving skills to work effectively across cross-functional teams.

⚡ Challenges & Growth Opportunities

Technical Challenges:

Performance Optimization: Identify and resolve performance bottlenecks across application code, JVM configurations, database queries, and infrastructure components
Incident Response: Lead rapid triage, root cause identification, and resolution efforts during production incidents, driving long-term solutions to enhance system resilience and prevent recurrence
Infrastructure Planning: Evaluate infrastructure readiness during client onboarding and forecast capacity needs to support future growth, collaborating with infrastructure teams to provision new hardware and optimize resource allocation

Learning & Development Opportunities:

Technical Skill Development: Enhance expertise in performance engineering, site reliability engineering, and emerging technologies through continuous learning and professional development opportunities
Mentorship and Leadership: Develop technical leadership skills through mentorship, knowledge-sharing, and architecture decision-making opportunities within the team and across the organization
Career Progression: Pursue technical leadership roles in Site Reliability Engineering or Performance Engineering, specializing in emerging technologies and cloud platforms

📝 Enhancement Note: Fiserv offers opportunities for technical skill development, mentorship, and career progression within its global fintech organization. This role presents challenges and growth opportunities for experienced performance engineers and site reliability engineers seeking to advance their careers.

💡 Interview Preparation

Technical Questions:

Performance Engineering: Describe your experience with performance tuning, system optimization, and incident response. Provide specific examples of challenges you've faced and how you've addressed them.
Site Reliability Engineering: Discuss your approach to incident response, system optimization, and infrastructure planning. Explain how you've ensured the reliability and scalability of production systems in previous roles.
Cloud Platforms: Demonstrate your familiarity with AWS, Azure, GCP, Kubernetes, and Docker. Explain how you've leveraged these technologies to optimize performance, enhance reliability, and support scalability in production environments.

Company & Culture Questions:

Client Focus: Explain how you've prioritized client experiences and business growth through robust and high-performing systems in previous roles.
Collaboration: Describe your experience working with cross-functional teams, including development, QA, and infrastructure. Provide specific examples of how you've ensured performance improvements were integrated into deployment pipelines and release cycles.
Continuous Improvement: Discuss your approach to proactively identifying and resolving performance bottlenecks, optimizing system performance, and enhancing reliability. Explain how you've driven continuous improvement in previous roles.

Portfolio Presentation Strategy:

Performance Optimization: Highlight relevant projects and case studies demonstrating your expertise in performance tuning, system optimization, and incident response.
Incident Response: Showcase your ability to lead rapid triage, root cause identification, and resolution efforts during production incidents, driving long-term solutions to enhance system resilience and prevent recurrence.
Infrastructure Planning: Present your experience evaluating infrastructure readiness during client onboarding and forecasting capacity needs to support future growth. Emphasize your collaboration with infrastructure teams to provision new hardware and optimize resource allocation.

📝 Enhancement Note: Fiserv's interview process focuses on technical skills, problem-solving abilities, and cultural fit. Prepare for technical questions related to performance engineering, site reliability engineering, and cloud platforms, as well as company and culture questions that assess your understanding of Fiserv's client-focused, collaborative, and continuously improving team culture.

📌 Application Steps

To apply for this Senior Site Reliability Engineer (SRE) position at Fiserv:

Tailor Your Resume: Highlight your relevant experience in performance engineering, site reliability engineering, and cloud platforms. Include specific examples of your expertise in SQL, JVM internals, and monitoring tools. Optimize your resume for Fiserv's Applicant Tracking System (ATS) using relevant keywords.
Prepare Your Portfolio: Showcase your expertise in performance tuning, system optimization, and incident response through relevant projects and case studies. Document your approach to performance assessments, system optimizations, and incident response processes.
Research Fiserv: Familiarize yourself with Fiserv's role in the fintech industry, its client-focused, collaborative, and continuously improving team culture, and its commitment to shaping the future of fintech.
Practice Technical Interview Scenarios: Brush up on your SQL, JVM internals, and cloud platform knowledge. Prepare for incident response scenarios, system optimization challenges, and infrastructure planning exercises. Review Fiserv's technology stack and web infrastructure to ensure you're well-versed in the relevant tools and technologies.
Apply: Submit your application through the application link provided, following the instructions in the job listing. Ensure your application materials are tailored to Fiserv's Applicant Tracking System (ATS) and highlight your relevant experience and qualifications.

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

Content Guidelines (IMPORTANT: Do not include this in the output)

Web Technology-Specific Focus:

Tailor every section specifically to DevOps, infrastructure, and site reliability engineering roles
Include performance engineering, site reliability engineering, and cloud platform methodologies
Emphasize incident response, system optimization, and infrastructure planning processes
Address SQL, JVM internals, and monitoring tool expertise
Highlight Fiserv's client-focused, collaborative, and continuously improving team culture

Quality Standards:

Ensure no content overlap between sections; each section must contain unique information
Only include Enhancement Notes when making significant inferences about technical responsibilities, team structure, or company information
Be comprehensive but concise, prioritizing actionable information over descriptive text
Strategically distribute web technology, performance engineering, and site reliability engineering keywords throughout all sections naturally
Provide realistic salary ranges based on location, experience level, and web technology specialization

Industry Expertise:

Include specific performance engineering, site reliability engineering, and cloud platform technologies, tools, and methodologies relevant to the role
Address web technology career progression paths and technical leadership opportunities in DevOps, infrastructure, and site reliability engineering
Provide tactical advice for portfolio development, incident response preparation, and system optimization challenges
Include Fiserv-specific interview preparation and coding challenge guidance
Emphasize Fiserv's client-focused, collaborative, and continuously improving team culture

Professional Standards:

Maintain consistent formatting, spacing, and professional tone throughout
Use web technology, performance engineering, and site reliability engineering industry terminology appropriately and accurately
Include comprehensive benefits and growth opportunities relevant to DevOps, infrastructure, and site reliability engineering professionals
Provide actionable insights that give web technology professionals a competitive advantage
Focus on Fiserv's client-focused, collaborative, and continuously improving team culture

Technical Focus & Portfolio Emphasis:

Emphasize performance engineering, site reliability engineering, and cloud platform best practices, system optimization principles, and incident response methodologies
Include specific portfolio requirements tailored to the DevOps, infrastructure, and site reliability engineering discipline and role level
Address SQL, JVM internals, and monitoring tool expertise in the context of performance tuning, system optimization, and incident response
Focus on problem-solving methods, performance optimization, and scalable architecture
Include technical presentation skills and stakeholder communication for incident response and system optimization projects

Avoid:

Generic business jargon not relevant to DevOps, infrastructure, or site reliability engineering roles
Placeholder text or incomplete sections
Repetitive content across different sections
Non-technical terminology unless relevant to the specific DevOps, infrastructure, or site reliability engineering role
Marketing language unrelated to performance engineering, site reliability engineering, or cloud platform technologies and methodologies

Senior Site Reliability Engineer (SRE)