Sr. Mobile Platform Developer

Orlando, Florida, United States of America | Full time

About the role

We are seeking a Sr. Mobile Platform Developer to join our team in Orlando, FL. Provides advanced and diversified expertise in the planning, architecture, development, implementation, and support of enterprise mobile platform solutions. With limited direction, applies specialized mobile development, solution architecture, troubleshooting, and product knowledge to highly complex technical problems. This role serves as the senior technical owner for mobile platform capabilities, ensuring alignment with the broader solution platform, customer implementation needs, quality standards, and future product direction.

• Participates in scope of work and estimate development for mobile platform enhancements, utilizing advanced technical domain knowledge; leads scope and estimate development for complex mobile architecture or platform modernization efforts.
• Conducts client, implementation, product, and support needs analyses and translates business requirements into mobile software specifications for complex projects.
• Leads the design, development, maintenance, and evolution of cross-platform mobile applications supporting Android, iOS, and Windows device environments.
• Serves as a mobile solution architect, defining design patterns, technical approaches, and integration strategies that align mobile capabilities with the broader enterprise platform.
• Develops customized mobile application functionality by writing well-documented code in applicable mobile, web, database, and integration environments to meet documented software requirements.
• Performs maintenance and enhancement tasks on existing mobile platform components following established architecture, design standards, and product release practices.
• Analyzes highly complex mobile technical problems and devises new approaches, alternative solutions, and practical workarounds for synchronization, offline operation, upload handling, map configuration, device behavior, and platform-specific issues.
• Provides database design insight and supports local and backend data architecture considerations, including document-centric local databases, synchronization models, relational data opportunities, and future online/offline operating modes.
• Leads documentation and diagramming of mobile business requirements, technical requirements, architecture decisions, release impacts, support patterns, and implementation best practices.
• Coordinates with quality assurance resources to define mobile-specific test cases, review defects, validate complex scenarios, and ensure mobile release readiness.
• Provides advanced support escalation for mobile platform issues.
• Advises implementation, technical support, product, and leadership teams on mobile setup, configuration, troubleshooting, customer readiness, and appropriate escalation paths.
• Maintains continued knowledge of mobile technology developments, including the advancement of AI, cross-platform development approaches, device operating systems, security considerations, database technologies, and enterprise application architecture.
• Supports proposal, RFI, demo, user group, and webinar activities by providing accurate technical input on mobile capabilities, limitations, configuration requirements, and future direction.
• Leads code reviews, contributes to code review standards, develops reusable architectures, interfaces with remote teams, directs work, checks results, and mentors other development resources in mobile platform practices.
• Performs such other duties as the Supervisor may from time to time deem necessary.

Requirements

• B.S. or B.A. in Computer Science, Information Technology, Software Engineering, Engineering, GIS, or a related discipline, or equivalent directly relevant experience in enterprise software and mobile platform development. Non-degreed practitioners must demonstrate substantial direct experience in software development, mobile application architecture, enterprise systems, and technical leadership.
• Typical incumbent has 10+ years' experience or equivalent depth of specialized mobile platform expertise.
• Industry-recognized technical certification, mobile development certification, cloud/platform certification, software architecture certification, GIS certification, technical paper, award, or professional registration in the case of incumbents with Engineering degrees is desired.
• Must have extensive experience in the design, development, maintenance, and support of enterprise-scale mobile applications, including cross-platform mobile development, offline/online operating models, synchronization, device-specific troubleshooting, release coordination, and quality control.
• Must demonstrate a strong understanding of object-oriented programming, modern mobile development frameworks and tools, the .NET framework, C#, MAUI, Blazor, web services and integration patterns, relational and local database concepts, application security considerations, and enterprise software development practices.
• Experience with GIS, web maps, asset management systems, field data collection workflows, image and document upload handling, and mobile implementation support is desired but not necessary.
• Must demonstrate excellent analytical, interpersonal, technical writing, communication, mentoring, and client-service skills.
• Job requires ability to access and understand technology materials, review code and technical documentation, and communicate effectively both orally and in writing.
• Incumbent must be able and willing to handle interruptions in current work in progress to address priority customer, support, implementation, or release issues.
• Ability to plan, prioritize, review project plans and technical documents, evaluate alternatives, and select appropriate solutions is required.

Why choose AtkinsRéalis?

Wherever you are in your career – and whoever you are – AtkinsRéalis is for you. Here, support and collaboration are a vibrant part of a culture that lets you choose where – and how far – your career can go. Take on projects that push boundaries and drive sustainable impact, surrounded by colleagues who believe there's no limit to how brilliant you can be. It's time to join a like-minded team where you'll be rewarded, supported, and free to be your kind of brilliant.

At AtkinsRéalis, our values—Safety, Integrity, Collaboration, Innovation, and Excellence—are more than just words. They are the foundation of who we are and how we work. These principles shape our culture, guide our decisions, and inspire us to create an environment where every team member feels empowered to grow, succeed, and make a meaningful impact.

Benefits

Depending on your employment status, AtkinsRéalis benefits may include:

• Medical, dental, vision, company-paid life and short- and long-term disability benefits
• Employer-matched 401(k) with 100% vesting
• Employee stock purchase plan
• Paid Time Off, leaves of absences options, flexible work options
• Recognition and employee satisfaction programs
• Employee assistance program
• Voluntary benefits