Principal Engineer, Product Engineering (Mobile)

Planet Fitness•Hampton, NH

1h•Hybrid

About The Position

The Principal Engineer, Product Engineering (Mobile) will lead and oversee the architecture, design, development, and delivery activities of a cross-functional engineering team with a heavy mobile application focus. Through strong hands-on technical contributions and cross-team leadership and coordination, the Principal Engineer will instill technical excellence across key strategic initiatives. The Principal Engineer will partner closely with Product and Design counterparts to identify innovative solutions to user and business challenges using leading technology and delivery practices. They will also work closely with Data, Security, Infrastructure, and Operations teams using our technology delivery methodology and our ways of working. As a member of a growing team, you'll also play a role in shaping and defining the team's culture. You'll get the benefits of a fast-paced environment in an environment where teamwork, culture, and collaboration are paramount. This is a hybrid role based out of our Hampton, NH office.

Requirements

Bachelor's degree in a related field (Computer Science, Computer Engineering, Management Information Systems, etc.). Master's degree a plus
8+ years of software engineering experience and 2+ years of experience leading and supporting a cross-functional delivery team
Breadth and depth of experience in the architecture, development, and implementation of mobile applications. This includes a proven track record of leading a cross-functional delivery team through everyday project tasks and collaborating across multiple functional and technical teams to deliver an outcome
Deep hands-on experience is native mobile application languages (e.g., Swift, Kotlin), user interfaces (e.g., SwiftUI, Jetpack Compose), and supporting tooling (e.g., Firebase, Sentry)
Strong analytical and problem-solving skills, with the ability to tackle ambiguous problems and make data-driven decisions
Strong attention to detail, efficient, and organized with an ability to establish priorities and objectives
Excellent presentation and communication skills along with the ability to communicate effectively across all levels of the organization
Able to establish and maintain effective, collaborative work relationships with diverse individuals, internally and externally
Dedicated learner with a natural curiosity for consistent growth
Exhibits comfort, ease, and flexibility working in an extremely fast-paced ever-changing, deadline-driven environment
Cooperative team player with an upbeat, positive, “can-do” attitude!

Nice To Haves

Master's degree a plus
Experience with CI/CD pipeline development and AI-powered engineering tooling is a strong plus
Experience using Generative AI (GenAI) user-facing software products or applications is also highly desirable
Should have a practical understanding of RESTful service design and be skilled in integrating with synchronous and asynchronous APIs. Experience with GraphQL is also helpful but not required

Responsibilities

Defines the technical architecture of a platform or product, aligning it with the technical architecture for the enterprise.
Serves as a trusted technical advisor and decision-maker for architectural and design decisions.
Provides hands-on mentorship and guidance to the engineering team, fostering skill growth and innovation.
Champions best practices in system design, development, testing, and deployment, including AI-powered engineering capabilities.
Partners with Product and Design to rapidly explore solutions that amaze users and drive business outcomes.
Works across engineering, infrastructure, data, and security teams to align methodologies, platforms, and delivery practices.
Launches new capabilities rapidly, while managing risk continuously from inception through operations
Develops and executes delivery plans that take advantage of cutting-edge technologies to deliver solutions that exceed expectations.
Anticipates and mitigates risks early in the development cycle, ensuring scalable and resilient solutions.
Advocates for customer-centric design thinking while balancing technical feasibility and business priorities.
Maintains strong hands-on involvement in their team’s work, providing technical expertise and oversight on architecture, implementation, testing, and operations.
Establishes pragmatic, repeatable approaches for writing, validating, and shipping high-quality software, empowering your team to excel in an agile, outcome-oriented environment.
Partners with others to bring AI to development and delivery, establishing new patterns of engagement across cross-functional teams.
Drives adoption of modern engineering practices, including CI/CD pipelines, automated testing, observability, and mobile application design patterns.
Mentors and grows the next generation of technical leaders within the organization.
Promotes a culture of continuous learning, experimentation, and technical excellence.
Serves as a role model for engineering values, instilling ownership, craftsmanship, and pride in delivery.

Benefits

Planet Fitness cares about you and your well-being. We offer a comprehensive benefits package to eligible employees which includes the core medical, dental, vision, life and disability as well as supplemental accident, hospital and critical illness coverage options.
In addition, we are proud to offer eligible employees a generous time off program (including volunteer time), childcare reimbursement, paid parental leave, pet care reimbursement, tuition reimbursement, free Black Card membership, learning and development programs and a whole host of engagement activities.
We offer a 401(k) Plan with safe harbor employer matching and an employee stock purchase plan.
This role is also eligible to participate in an annual corporate bonus incentive program based on company financial and personal performance.

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