Freelance Mobile Developer Jobs

Build backend services that let AI agents retrieve and act on business data during customer conversations. The role focuses on reliable APIs, careful access controls, and clear fa…

Handle member complaints and grievances for a health plan, investigating concerns, finding fair resolutions, and helping members understand what happens next. The work combines ca…

Provide phone and chat support to military members, their families, and other eligible participants seeking help with employee assistance and work-life concerns. You’ll assess nee…

Help improve AI systems by creating and evaluating challenging machine learning and numerical computing tasks. You will develop reference solutions, assess model-generated code, a…

Use your government security and defense technology experience to help evaluate and improve AI systems. The work involves developing realistic, unclassified scenarios, reviewing t…

Lead a technical security operations team and strengthen the organization’s ability to detect, investigate, and respond to threats. The role combines people leadership with hands-…

Use data engineering expertise to create and assess tasks that help improve AI systems’ ability to work with data. This is flexible, part-time remote contract work focused on real…

Contribute machine learning expertise to the development and evaluation of AI systems through flexible, part-time remote contract work. You will create realistic modeling tasks, a…

Build and maintain Android features for a customized launcher and related applications in a modular codebase. The work spans Compose interfaces, shared libraries, release experime…

Lead the modernization of a digital credit application platform, extracting core decision logic from a legacy monolith into cloud-based services. The role combines architecture an…

Evaluate AI-generated research in computer science and computational physics through rigorous technical review. In this flexible, part-time remote contract role, you will set dema…

Review business data and documents for accuracy as part-time, remote contract work supporting AI evaluation. The work combines careful comparison against assignment criteria with…

Shape the direction of workforce management solutions covering workforce planning, shift scheduling, time compliance, and labor cost control. This role connects product strategy w…

Create and evaluate challenging machine-learning engineering tasks that help assess AI systems working with model development and operations. This part-time contract work calls fo…

Build production-ready mobile applications for client projects, supporting both iOS and Android through a cross-platform approach. The work spans app development, service integrat…

Design and develop connected hardware as a remote contract engineer. The initial scope includes PoE-powered devices such as an HDMI digital signage player and environmental sensor…

Design and refine software experiences across web and mobile products, from small usability fixes to larger features. You’ll work closely with product managers and engineers to tu…

Own and improve cloud operations, delivery workflows, and production readiness for web, mobile, and backend services. This is a hands-on technical leadership role focused on AWS r…

Build and support full stack enterprise applications for legal operations, matter and document management, and regulatory processes. The work spans user interfaces, backend servic…

Own discovery, prioritization, and measurement for a product area that connects content, community, and monetization across mobile and web. The role turns creator and user needs i…

Lead technical delivery of digital banking implementations, guiding clients from requirements discovery through configuration, testing, and production launch. The work combines so…

Lead automation capital projects across manufacturing and distribution sites, from layout and design through installation and operational start-up. The work brings engineering, op…

Provide senior technical leadership across software products and engineering teams. Set architectural direction, lead complex initiatives from early design through delivery, and h…

Build and improve automated quality checks for a mobile app used to access financial products. You’ll shape the testing strategy and work with engineering, product, and design to…

Serve as a technical point of contact for advertising technology integrations, helping partners connect their systems while improving and supporting existing connections. The work…

Shape the development and market direction of technical products and solutions in physical security and access control. You will connect customer needs, product strategy, and engi…

Build and improve automated quality practices for mobile applications. You will work with cross-functional teammates to turn testing strategies into scalable test suites, expand c…

Test streaming applications on a compatible smart TV and report how well key features work. Assignments are freelance, remote, and project based, with testers using their own tele…

Remote technology role with responsibilities and requirements described in the listing. Responsibilities The original listing contains the role-specific day-to-day scope. Requirem…

Remote technology role with responsibilities and requirements described in the listing. Responsibilities The original listing contains the role-specific day-to-day scope. Requirem…

Lead the technical direction for an AI-enabled software development experience where engineers and coding agents work together. The role combines architecture and hands-on enginee…

Remote technology role with responsibilities and requirements described in the listing. Responsibilities The original listing contains the role-specific day-to-day scope. Requirem…

Remote technology role with responsibilities and requirements described in the listing. Responsibilities The original listing contains the role-specific day-to-day scope. Requirem…

Remote technology role with responsibilities and requirements described in the listing. Responsibilities The original listing contains the role-specific day-to-day scope. Requirem…

Take part in project-based testing of mobile apps and websites, helping identify whether features work as intended and how easy they are to use. This opportunity is aimed at peopl…

Create brand and campaign design for a range of media, turning client briefs into visual work that meets both creative and strategic goals. This temporary role calls for a senior,…

Shape the experience of a consumer digital product across mobile and web, improving core journeys and designing new features. You’ll lead design work from early concepts through i…

Own product initiatives that improve growth across the customer journey, from acquisition and onboarding through engagement, retention, referral, and monetization. You’ll use prod…

Evaluate backend work completed by AI coding systems, using your engineering judgment to shape realistic feature and bug-fix tasks and assess the resulting code. The work is part-…

Design and deliver web and mobile applications across the full development cycle, from data modeling and technical planning to interfaces, testing, and release. You will build bus…

Turn visual designs into polished web interfaces for websites, online stores, and web applications. The role combines responsive implementation, component development, animation,…

Help assess and improve AI coding systems by creating realistic full-stack software tasks, evaluating generated implementations, and producing professional reference solutions. Th…

Remote technology role with responsibilities and requirements described in the listing. Responsibilities The original listing contains the role-specific day-to-day scope. Requirem…

Remote technology role with responsibilities and requirements described in the listing. Responsibilities The original listing contains the role-specific day-to-day scope. Requirem…

Build the web experiences used to create customer-facing AI agents and the interactive features those agents present to customers. The work spans the agent-building flow and polis…

Provide senior-level application management support for customers using SAP across sales and distribution, materials management and production planning. You will own day-to-day se…

Build and maintain embedded software across Linux-based devices and microcontroller platforms, working from hardware bring-up through system behavior in the finished product. You…

Take senior technical ownership of mobile engineering across an existing Android app and a new iOS app, initially aimed at iPads used in field operations. This hands-on contractor…