FLEX Senior Software Engineer- Performance Engineering

JOB SUMMARY

The GraphQL Performance Engineering team at Marriott is dedicated to improving the digital experience for millions of guests worldwide while also enhancing the engineering experience for teams across Marriott. We achieve this by challenging the status quo and driving innovative approaches to deliver fast, reliable, and scalable digital solutions.

We are seeking a highly engaged and motivated Performance Engineer who is passionate about optimizing system performance, continuously improving their skills, and learning emerging technologies. The ideal candidate will have a strong hands-on background in performance engineering, test automation, and system optimization, along with exceptional communication and collaboration skills.

In this role, you will:

• Serve as a technical performance expert within the GraphQL team, ensuring APIs are scalable, reliable, and efficient under high load.
• Conduct performance testing, profiling, benchmarking, and tuning of GraphQL services and their integrations with multiple channels, third party’s integrations and domain API teams.
• Collaborate closely with product, architecture, and engineering teams to design and implement solutions that improve end-to-end performance.
• Analyze production bottlenecks, scalability issues, and latency concerns, and provide actionable recommendations.
• Develop performance frameworks, monitoring strategies, and performance dashboards to proactively detect and prevent issues.
• Act as a bridge across teams, providing technical expertise, guidance, and solutions to performance-related challenges.

CANDIDATE PROFILE

 Education and Experience Required

• Self-motivated and results-driven, with a passion for learning and growth
• Strong verbal and written communication skills
• Proven track record of working with scalable, high-quality web applications
• Possess deep expertise in performance testing tools (e.g., NeoLoad, JMeter, Locust) and monitoring/observability platforms (e.g., Dynatrace, New Relic, Prometheus/Grafana).
• Strong skills in profiling, debugging, and tuning JVM- and Node.js-based services.
• Experience with cloud platforms (AWS/Azure/GCP) and containerized environments (Docker, Kubernetes).
• Familiarity with CI/CD pipelines and integrating performance testing into DevOps workflows.
• Strong SQL and NoSQL database performance analysis (Redis, Postgres, MySQL, MongoDB, DynamoDB, etc.).
• Programming/scripting proficiency in Java, Node.js, Python, or Go for performance automation.
• AWS Solutions Architect or Developer certification
• Demonstrate strong analytical skills to identify root causes and performance trends.
• Communicate effectively with both technical and non-technical stakeholders.
• Thrive in a collaborative environment while driving performance best practices across the organization.
• 8+ years’ working with large scale API projects

Nice to Have

• Experience with Chaos Engineering / Resilience testing.
• Knowledge of GraphQL federation, caching strategies, and distributed systems performance.
• Familiarity with APM tools and advanced logging/traceability frameworks (OpenTelemetry, Jaeger, Zipkin).

CORE WORK ACTIVITIES 

Technical Leadership

• Trains and/or mentors other team members, and peers as appropriate
• Ability to work liaising with multiple teams to steer projects from inception to successful delivery
• Identifies opportunities to enhance the service delivery processes.

Delivering Technology

• Performs complex quantitative and qualitative analyses for service delivery processes and projects.
• Facilitates achievement of expected deliverables and obligations of Services Providers
• Validates completeness of requirements prior to Service Provider solutioning
• Ensures all projects follow the defined development and business case processes
• Ensures proper coordination with appropriate IT and vendor relations teams
• Provides consultation for routine and complex systems development
• Ensures early warning to the business stakeholder executives regarding degraded or missed service levels
• Coordinates with Application Delivery and Infrastructure teams for deployment and production support activities

IT Governance

• Follows all defined IT standards and processes (i.e. IT Governance, SM&G, Architecture, etc.), and provides input for improvements to the appropriate process owners as needed
• Maintains a proper balance between business and operational risk
• Ability to assess when risks need to be escalated to right channels
• Follows the defined project management standards and processes

Service Provider Management

• Validates that Service Providers develop and manage respective aspects of a project plan, including schedules, deliverables, and appropriate metrics
• Makes short term plans for the team to effectively utilize resources
• Monitors Service Provider outcomes
• Reviews estimates of work effort for client project provided by Service Providers for accuracy
• Facilitates timely resolution of service delivery problems and minimizes the impact to clients

MANAGEMENT COMPETENCIES

 Leadership

Communication – Conveys information and ideas to others in a convincing and engaging manner through a variety of methods. Leading Through Vision and Values – Keeps the organization's vision and values at the forefront of employee decision making and action. Managing Change – Initiates and/or manages the change process and energizes it on an ongoing basis, taking steps to remove barriers or accelerate its pace; serves as role model for how to handle change by maintaining composure and performance level under pressure or when experiencing challenges. Problem Solving and Decision Making – Identifies and understands issues, problems, and opportunities; obtains and compares information from different sources to draw conclusions, develops and evaluates alternatives and solutions, solves problems, and chooses a course of action. Professional Demeanor – Exhibits behavioral styles that convey confidence and command respect from others; makes a good first impression and represents the company in alignment with its values. Strategy Development – Develops business plans by exploring and systematically evaluating opportunities with the greatest potential for producing positive results; ensures successful preparation and execution of business plans through effective planning, organizing, and on-going evaluation processes.

Managing Execution

Building a Successful Team – Uses an effective interpersonal style to build a cohesive team; inspires and sustains team cohesion and engagement by focusing the team on its mission and importance to the organization. Strategy Execution – Ensures successful execution across business plans designed to maximize customer satisfaction, profitability, and market share through effective planning, organizing, and on-going evaluation processes. Driving for Results – Sets high standards of performance for self and/or others; assumes responsibility for work objectives; initiates, focuses, and monitors the efforts of self and/or others toward the accomplishment goals; proactively takes action and goes beyond what is required.

Building Relationships

Customer Relationships – Develops and sustains relationships based on an understanding of customer/stakeholder needs and actions consistent with the company’s service standards. Global Mindset – Supports employees and business partners with diverse styles, abilities, motivations, and/or cultural perspectives; utilizes differences to drive innovation, engagement and enhance business results; and ensures employees are given the opportunity to contribute to their full potential. Strategic Partnerships – Develops collaborative relationships with fellow employees and business partners by making them feel valued, appreciated, and included; explores partnership opportunities with other people in and outside the organization; influences and leverages corporate and continental shared services and/or discipline leaders to achieve objectives.

Generating Talent and Organizational Capability

Developing Others – Supports the development of other’s skills and capabilities so they can fulfill current or future job responsibilities more effectively. Organizational Capability – Evaluates and adapts the structure of assignments and work processes to best fit the needs and/or support the goals of an organizational unit.

Learning and Applying Professional Expertise

Continuous Learning – Actively identifies new areas for learning; regularly creates and takes advantage of learning opportunities; uses newly gained knowledge and skill on the job and learns through their application. Technical Acumen – Understanding and utilizing professional skills and knowledge in a specific functional area to conduct and manage everyday business operations and generate innovative solutions. Business Acumen – Understands and utilizes business information to manage everyday operations and generate innovative solutions to approach business and administrative challenges.

Basic Competencies

• Basic Computer Skills
• Mathematical Reasoning
• Oral Comprehension
• Reading Comprehension
• Writing

At Marriott International, we are dedicated to being an equal opportunity employer, welcoming all and providing access to opportunity. We actively foster an environment where the unique backgrounds of our associates are valued and celebrated. Our greatest strength lies in the rich blend of culture, talent, and experiences of our associates.  We are committed to non-discrimination on any protected basis, including disability, veteran status, or other basis protected by applicable law.