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Mobile app developer building and maintaining iOS and Android applications for client projects, using native (Swift, Objective-C, Java, Kotlin) and optionally cross-platform frameworks (Flutter, React Native).
This role involves designing, developing, and maintaining cross-platform mobile applications for government projects using React Native, JavaScript, and TypeScript. The developer will collaborate with cross-functional teams to integrate REST APIs and ensure high-quality performance across iOS and Android devices.
Senior iOS Developer designing, building, and maintaining native iOS apps using Swift, SwiftUI, and UIKit with MVVM/Clean Architecture, secure API integrations, and CI/CD support.
The Senior iOS Engineer will lead the development and maintenance of the Duo Mobile iOS application using Swift, Objective-C, and SwiftUI. This hybrid role involves collaborating across teams to build secure, accessible authentication experiences while utilizing AI-assisted development tools.
Build and integrate machine learning systems that run locally on Apple devices to personalize user experiences and anticipate needs.
Develop and maintain test automation for Apple's Health app, Research App, and related health software using Swift, Objective-C, and XCTest/XCUITest.
Mid-level iOS Developer building and maintaining mobile applications using Swift and Objective-C, collaborating with designers and product managers at a global digital transformation consultancy.
Build and maintain internal macOS applications and services for a trading firm, using Swift and Apple ecosystem tools, while contributing across a broader tech stack.
Design, develop, and maintain GIS applications for utility industry asset management workflows using ESRI/ArcGIS suite, C#, .NET, Python, JavaScript, and SQL Server, leading development teams and integrating with enterprise systems.
Fullstack Engineer building and scaling LinkedIn's personalization platform infrastructure that powers personalized experiences for over a billion members, using Python, JavaScript/React, and distributed systems.
Leads technical roadmaps and designs large-scale distributed systems for LinkedIn’s applications, balancing business goals with engineering productivity and system reliability. Focuses on high-stakes architectural decisions, cross-functional collaboration, and scaling 24/7 user-centric applications.
Senior Staff Mobile Engineer focused on designing and optimizing mobile growth systems for OKX, including user acquisition, referral mechanics, and AI-driven attribution infrastructure to scale conversion funnels for millions of crypto users.
Staff Mobile Engineer leads end-to-end crypto fiat on/off-ramp mobile development for OKX, handling quote flows, payment integrations (banks/e-wallets), and compliance across global markets like SEA, LATAM, and MENA.
Full-stack engineer on YouTube building frontend features in TypeScript and backend services in C++, collaborating across the full product lifecycle including AI-first platform improvements.
Own and develop a large Go-based backend ecosystem for a cybersecurity platform, focusing on scalable architecture, legacy code modernization, and high-load production system reliability.
Build and maintain iOS apps for enterprise clients using Swift and Objective-C, collaborating with designers and product teams to deliver polished mobile solutions.
Builds and maintains macOS systems software and security applications, focusing on platform internals, Apple frameworks, and enterprise security solutions.
Designs and maintains the security architecture for a large-scale EU IT system, ensuring compliance with regulations and integrating security controls across networks, applications, and infrastructure.
Writes highly optimized Swift and Objective-C code to build robust iOS applications, frameworks, and tools. Focuses on architecting complex projects and debugging with Instruments and LLDB.
Develops and optimizes iOS apps and SDKs using Swift and Objective-C, focusing on performance, memory management, and new OS APIs.
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