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Principal Engineer - iOS
Principal Engineer - iOS-March 2024
Annapolis
Mar 28, 2026
About Principal Engineer - iOS

Job Number 24103180

Job Category Information Technology

Location Marriott International HQ, 7750 Wisconsin Avenue, Bethesda, Maryland, United States

Schedule Full-Time

Located Remotely? Y

Relocation? N

Position Type Management

JOB SUMMARY:

Serves as a technical subject matter expert (SME) for the iOS Platform and provides strategic technical advisory and hands-on support for the Marriott Bonvoy app towards organizational and departmental goals. Helps define the Target Architecture for the Platform and advises on the Mobile Platform Roadmap and priorities. Serves on the Mobile Platform Team and regularly delivers high-impact code. Leads architecture and framework initiatives.

Partners with other Principal Engineers, Engineering Directors, Enterprise Architecture and squad Tech Leads to advise on solutioning for major features and adherence to architecture and security standards – helping to solve the most complex problems while resulting in high-quality output. Performs code reviews and coaches developers. Provides recommendations for improvements around design patterns, workflow, tools and standards.

Stays abreast of the Apple ecosystem to remain an expert authority on iOS and device capabilities and possibilities. Researches and explores other tools, solutions, frameworks, etc. and how the industry and community at large are using them. Leads proof of concepts and helps to objectively assess technologies against goals and constraints. Educates the mobile engineering community, internal and external.

CANDIDATE PROFILE

Education and Experience

Required :

10+ years of application development leadership experience that includes:

Enterprise-scale native mobile application development on iOS

Expert-level iOS architecture and coding abilities in Swift, SwiftUI and knowledge of Objective-C

Extensive experience in development of a variety of large apps supporting millions of users at scale in iOS.

Experience with Automation, CI/CD, Release Management processes and Application Deployments to app stores.

Familiarity with Enterprise-level SDKs for Analytics, Networking, Customer Engagement, Application Performance Monitoring

Strong understanding of API platforms, backend services, database and networking components of fullstack infrastructure

Undergraduate/graduate degree or equivalent education + experience

Preferred:

Demonstrated success leading medium- to large-scale initiatives/transformations

Proven knowledge of Agile methodology; preferably SAFe Agile

Experience with mixed and offshore delivery models

Good process management, negotiating, influencing and problem resolution skills

Proven ability to effectively prioritize and execute tasks in a high-pressure environment

Knowledge of business environment, service requirements and hospitality culture

Knowledge of / familiarity with the other platform (e.g., Android) as well

Demonstrated ability to assess customer/client needs, creatively approach solutions, decide and influence appropriate courses of action

Ability to understand and communicate the lifecycle of technologies and applications and to translate into business strategies for the client organizations.

Solid understanding of IT financial structures and ability to manage to corporate financial processes and standards - including drivers of process costs

Strong verbal and written communication skills with the ability to articulate complex technical ideas in easy to understand business terms

Ability to accomplish results through others, particularly by establishing relationships, effective controls and leading in a managed service environment.

CORE WORK ACTIVITIES

Managing Application Development Standards, Processes, and Tools

Works with direct reports to facilitate consistency of service delivery across client groups

Facilitates compliance with the standard set of application development tools and processes that will drive consistency and predictability throughout the SDLC for all client groups including:

SDLC standard tools and processes for both waterfall and agile development

Estimating standard tools and processes, incorporating flexibility for small and large projects

Deployment standard tools and processes

Monitors projects for adherence to defined application development processes

Communicates to Application Development leaders opportunities to create broader IT related and corporate standards and policies where necessary

Communicates important application development policy changes that affect service provider and/or Marriott operations

Managing Day-To-Day Relationships with Teams

Manages application development projects in partnership with IT teams, business partners and providers

Provides project management of business projects

Oversees effective reporting within application development team

Leads project reviews with team on application development projects

Manages day-to day relationships with all IT teams to promote the delivery of services that meet or exceed the client expectations

Monitors projects for alignment with defined business case process

Drives timely resolution of escalated service delivery problems and minimizes the impact of any client service delivery issues

Manages, and improves service level reporting for application development

Provides early warning to the appropriate Business Partnership Planning leaders and team regarding degraded or missed service levels

Assists with application development and maintenance of service provider project management standards and tools

Participates in client portfolio and demand management processes, and engages service providers to ensure client satisfaction

Works with application development service providers

Validates the service provider(s) performs the services agreed to by the master services agreement in a manner that is consistent with both the spirit and the letter of the agreement

Works with team to progress the service providers services to match client needs

Facilitates team and service provider compliance with the agreement

Validates service levels meet business needs

Facilitates the definition and enforcement of good service provider contracts

Supports the IT organization

Provides input to IT’s business strategy and planning as needed

Supports and follows defined IT Governance decision rights, standards and practices

Emphasizes accuracy and effectiveness of estimating and planning management with team

Provides input to business/discipline and continent IT budgets

Implementing and Managing Continuous Improvement Program

Drives adoption of CMMi or similar metrics to demonstrate continuous improvement and alignment with the industry

Demonstrates continuous improvement through metrics of quality consistency and client satisfaction

Works with application development service providers, IT teams, and business partners to implement continuous improvement activities

Responds to issues identified in project surveys or other feedback processes, to continually improve client satisfaction

California Applicants Only: The salary range for this position is $110,550.00 to $245,238.00annually.

Colorado Applicants Only: The salary range for this position is $110,550.00 to $222,943.00 annually.

Hawaii Applicants Only: The salary range for this position is $133,766.00 to $245,238.00 annually.

New York Applicants Only: The salary range for this position is $110,550.00 to $245,238.00 annually.

Washington Applicants Only: The salary range for this position is $110,550.00 to $245,238.00 annually. In addition to the annual salary, the position will be eligible to receive an annual bonus and restricted stock units/stock grants. Employees will accrue 0.04616 PTO balance for every hour worked and eligible to receive minimum of 7 holidays annually.

All locations offer coverage for medical, dental, vision, health care flexible spending account, dependent care flexible spending account, life insurance, disability insurance, accident insurance, adoption expense reimbursements, paid parental leave, educational assistance, 401(k) plan, stock purchase plan, discounts at Marriott properties, commuter benefits, employee assistance plan, and childcare discounts. Benefits are subject to terms and conditions, which may include rules regarding eligibility, enrollment, waiting period, contribution, benefit limits, election changes, benefit exclusions, and others.

Marriott HQ is committed to a hybrid work environment that enables associates to Be connected. Headquarters based positions are considered hybrid, for candidates within a commuting distance to Bethesda, MD; candidates outside of commuting distance to Bethesda, MD will be considered for Remote positions.

The application deadline for this position is 28 Days after the date of this posting, June 14, 2024.

Marriott International is an equal opportunity employer. We believe in hiring a diverse workforce and sustaining an inclusive, people-first culture. We are committed to non-discrimination on any protected basis, such as disability and veteran status, or any other basis covered under applicable law.

Marriott International is the world’s largest hotel company, with more brands, more hotels and more opportunities for associates to grow and succeed. Be where you can do your best work,​ begin your purpose, belong to an amazing global​ team, and become the best version of you.

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