Senior Mobile Solutions Developer/Engineer

Procentrix; Washington (District of Columbia); On-site; USD 140,000 - 170,000; Full time

Job summary

Procentrix in Washington, DC is seeking a senior hands-on mobile engineer to design, develop, and maintain enterprise mobile apps supporting real-time communication, offline operations, and cloud-connected services.

You will collaborate with cloud, AI, security, and engineering teams to deliver secure, scalable mobile solutions with offline-first capabilities, peer-to-peer communication, and production-ready code.

Qualifications

• 8+ years of mobile app development experience, including at least 4 years on iOS production apps.
• Experience with React Native, TypeScript, and modern JavaScript frameworks.
• Experience with Expo and related tooling (Expo SDK, Router, Modules).
• Familiar with React Native architecture concepts and performance optimization.
• Native iOS development with Swift and Xcode when needed.
• Experience integrating with APIs and cloud-hosted services.
• Experience supporting offline/low-connectivity apps.
• Security-focused mobile solutions and data protection practices.
• Ability to deliver production-quality software with minimal supervision.
• Experience in small, cross-disciplinary teams and strong communication.
• US Citizenship with ability to obtain government clearance.

Responsibilities

• Design, develop, test, and maintain mobile applications.
• Implement connected, disconnected, and offline-first capabilities.
• Integrate mobile apps with APIs, cloud services, and enterprise platforms.
• Support peer-to-peer and device-to-device communication features.
• Troubleshoot and resolve issues across the mobile stack.

Skills

iOS development

React Native

TypeScript

JavaScript

Expo

Architecture concepts

Swift

APIs

Security

Team collaboration

US Citizenship

Tools

Azure

AI

OCR

Bluetooth

DevSecOps

.NET

Job description

Senior hands-on mobile engineer responsible for designing, developing, and maintaining enterprise mobile applications supporting real-time communication, offline operations, cloud-connected services, and peer-to-peer capabilities. The successful candidate will work closely with cloud, AI, security, and engineering teams to deliver secure, scalable, and production-ready mobile solutions. Responsibilities include:

• Design, develop, test, and maintain mobile applications.
• Implement connected, disconnected, and offline-first capabilities.
• Integrate mobile applications with APIs, cloud services, and enterprise platforms.
• Support peer-to-peer and device-to-device communication capabilities.
• Troubleshoot and resolve technical issues across the mobile application stack.

The projected compensation range for this position is $140K - $170K annualized (USD). The final salary offered will generally fall within this range and is determined by various factors, including but not limited to the individual's particular combination of education, knowledge, skills, competencies, and experience, as well as internal pay equity, location, contract-specific affordability and other organizational requirements.

Required Skills

• 8+ years of overall mobile application development experience, including at least 4 years developing and deploying production applications for Apple iOS devices.
• Experience developing and deploying production mobile applications using React Native, TypeScript, and modern JavaScript frameworks.
• Experience with Expo and related tooling, including Expo SDK, Expo Router, and Expo Modules.
• Familiarity with modern React Native architecture concepts, including the New Architecture, JavaScript Interface (JSI), native module integration, and performance optimization techniques.
• Working knowledge of native iOS development using Swift and Xcode sufficient to develop, extend, and integrate native capabilities when required.
• Experience integrating mobile applications with APIs and cloud-hosted services.
• Experience developing applications that support disconnected, low-connectivity, or intermittent
• Experience integrating mobile applications with APIs and cloud-hosted services.
• Experience implementing secure mobile application solutions and data protection practices.
• Demonstrated ability to rapidly design, develop, test, and deliver production-quality software with minimal supervision.
• Experience working in small, collaborative engineering teams where individuals contribute across multiple technical disciplines.
• Strong verbal and written communication skills.
• US Citizen with ability to obtain and maintain a government clearance.

Desirable Skills

• Experience with Microsoft Azure services, cloud-native architectures, and enterprise system integrations.
• Experience with AI, translation, speech processing, OCR, or related technologies.
• Experience implementing peer-to-peer, Bluetooth, proximity-based, or device-to-device communication capabilities.
• Experience with DevSecOps, automated testing, modern software delivery practices, and AI-assisted software engineering tools.
• Experience with .NET-based mobile development frameworks and technologies.
• Experience supporting secure enterprise or government mobile applications, including existing DHS suitability, Public Trust, or similar credentials.