Mobile Developer jobs in Missouri

St. Louis, Missouri

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Today

Role Summary We are looking for a skilled AI/ML Developer to join our agentic platform team on a contractual basis. You will design, develop, and deploy LLM-powered agents and pipelines that directly serve field technicians in production. You will work closely with the platform architect and contribute to the core multi-agent orchestration system. Key Responsibilities - Design and develop LLM-powered agents using LangGraph and LangChain frameworks - Build and enhance multi-agent orchestratio

Full-time

Mobile Application Developer (Android & iOS)

New Bloomfield, Missouri

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Today

Role : Mobile Application Developer (Android & iOS) Location : New Bloomfield, MO Contract-to-Hire Position Position 1: Android Developer Focus: Native Android application development, feature enhancement, and performance tuning.Technical Stack: Kotlin, Java, Android SDK, Android Studio, and integration with RESTful APIs.Key Responsibilities: Build out user-facing capabilities, optimize layouts for diverse device profiles, and map frontend features to backend data pipelines.Position 2: iOS Deve

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Contract

Depends on Experience

Senior Mobile App Developer (Cross-Platform iOS & Android- Ionic framework on React.)

Remote

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Yesterday

About the Role We are looking for a technically strong Mobile App Developer to join our team and take ownership of an existing cross-platform application built on the Ionic Framework with React JS. The ideal candidate will have hands-on experience diagnosing and resolving critical production issues particularly app crashes and performance/slowness problems across both Android and iOS platforms. Key Responsibilities Debug, troubleshoot, and resolve app crashes, memory leaks, and performance bottl

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Contract, Third Party

Depends on Experience

Mobile Application Developer

Remote or Hybrid in McLean, Virginia

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17d ago

Capgemini Government Solutions (CGS) is seeking a Mobile Application Developer to design, develop, and maintain secure mobile applications supporting federal customers. Key Responsibilities: Develop native and cross-platform mobile applications using Swift, Java, Kotlin, React Native, or Xamarin. Build secure, high-performance applications for iOS and Android platforms. Integrate mobile applications with backend APIs and services. Collaborate with UX/UI teams to deliver intuitive mobile experi

Full-time

-USD

Senior Tech Mobile Agentic AI Developer

St. Louis, Missouri

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Yesterday

10+ years of software development with strong Python expertise in production environments - 2+ years hands-on LLM development (LangChain, LangGraph, or equivalent frameworks) - RAG pipeline experience - embeddings, vector search, re-ranking, answer generation - LLM APIs - OpenAI Chat Completions, Responses API, streaming, tool calling - Async Python - asyncio, httpx, FastAPI - Prompt engineering - system prompts, few-shot, structured JSON output - Circuit breaker patterns, retry logic, resilient

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Contract

Depends on Experience

Senior Tech Mobile Agentic AI Developer

St. Louis, Missouri

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Today

We are seeking an experienced AI/ML Developer to build and deploy production-grade LLM-powered agents and multi-agent AI solutions supporting 40,000+ daily interactions. Key Skills: Python, LangChain, LangGraph, RAG, Azure OpenAI, LLM APIs, multi-agent orchestration, tool calling, hybrid search, FastAPI, PostgreSQL, Docker, Kubernetes & CI/CD. Candidates should have 10+ years of software development experience, including 2+ years of hands-on LLM/GenAI development. Experience with multi-modal AI,

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Full-time

75 - 80

Sr. Mobile Software Engineer

Remote or Hybrid

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Today

We are looking for a senior mobile software engineer who will contribute significantly to building mobile apps for a growing enterprise organization. In this role, you will provide technical leadership for a mobile platform and shape the long-term architecture of mobile applications. This person will drive engineering strategy, solve complex technical challenges, influence technical direction across teams, and raise the engineering bar through mentorship and technical excellence. If you are an

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Full-time

Lead Mobile Software Engineer

Remote

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4d ago

Readytoshapethefutureofmobiletechnology?Joinahigh-impactengineeringteamwhereyourReactNativeexpertise,nativemobileskills,andtechnicalleadershipwillhelpbuildinnovativeproductsusedacrossmultipleplatforms. FT,DirectHire 150-200K,plusbenefits RemoteorHybridifyoulivenearWestchesterCounty,NY ReactNative,TypeScript,Swift,Kotlin,MobileApplicationDevelopment,MobileArchitecture,StateManagement,Redux,Zustand,Cross-PlatformDevelopment,NativeiOS/AndroidDevelopment,CI/CD,AutomatedTesting,AppStoreDeployment,Te

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Full-time

150000 - 200000

.NET MAUI Mobile Software Engineer - Perm or C2P

Remote

•

Yesterday

Candidates only, no staffing firms .NET MAUI Development - Remote - C2P or Perm (not looking for a long-term contractor) Our client is looking to augment their team with an experienced Mobile Software Engineer to assist in the implementation of cloud-based systems used by large corporations. Requirements: C# / .NET MAUI, Xamarin experience could suffice as wellAny of the following would of course be a plus but ARE NOT required: Azure / .NET Core / microservices / Docker/Kubernetes, etc.Work Auth

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Contract

$125,000 - $165,000

.NET MAUI Mobile Software Engineer - Perm or C2P

Remote

•

Yesterday

.NET MAUI Development - Remote Perm or C2P Our client is looking to augment their team with an experienced Mobile Software Engineer to assist in the implementation of cloud-based systems used by large corporations. Requirements: C# / .NET MAUI, Xamarin experience could suffice as wellAny of the following would of course be a plus but ARE NOT required: Azure / .NET Core / microservices / Docker/Kubernetes, etc.Work Auth: US / GCThis is a best of all worlds opportunity, working alongside highly-sk

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Full-time

$125,000 - $165,000

Android Software Engineer, Artificial Intelligence (AI) Required, Work From Home - G

Remote

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Today

Android Software Engineer, Artificial Intelligence (AI) Required, Work From Home We are looking for a talented Android Software Engineer to build and evolve mobile applications that power insurance and financial products. The Android Software Engineer will also contribute to features that leverage automation and AI-assisted capabilities where they improve user experience and operational efficiency. This position is 100% Remote. MUST BE WILLING TO TAKE A 60 MINUTE CODING ASSESSMENT. Android Sof

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Full-time

$120,000 - $175,000

Senior Mobile Engineer, iOS

Remote

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Today

Why Thunderbird? Thunderbird is one of the world's most trusted open-source email applications, empowering more than 20 million people globally. At MZLA, the team behind Thunderbird, we build privacy-respecting communication and productivity tools that help people manage their digital lives while staying in control of their data. We are open source by design. Our products are developed transparently and in collaboration with a global community of contributors, and that same spirit shapes how w

Full-time

USD 123,000.00 - 144,000.00 per year

Principal Software Engineer, Mobile

Remote or Glendale, California

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Today

Principal Software Engineer, Mobile ServiceTitan is the operating system for the trades. Our mobile platform puts that operating system in the hands of technicians and business owners in the field, and it has to work flawlessly, at scale, every time. We're looking for a Principal Software Engineer to set the technical direction for that platform - across iOS and Android - and raise the bar for how our mobile engineers build, ship, and scale software. You'll own platform architecture, drive the

Full-time

Compensation information provided in the description

iOS Developer

Remote

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Today

iOS Developer / Lead iOS Developer Contract Duration: 6 Months Employment Type: Contract Only Pay: $75.00-$85.00 Position Summary We are seeking an experienced iOS Developer to join an established mobile development team on a 6-month contract assignment. This is an immediate backfill need, and the team is looking for someone who can hit the ground running, quickly integrate with the existing team, and contribute with minimal ramp-up time. While strong iOS developers will be considered, candidate

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Contract

USD75 - USD85

Backend Engineer

Remote

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Today

Company Overview The Intersect Group is partnering with an established organization that develops technology driven products and connected experiences for its customers. The organization is investing in its mobile platform with a strong focus on improving customer engagement, personalization, and the overall digital experience. This is an opportunity to join a collaborative mobile engineering team working on applications that integrate with backend systems, IoT technologies, and Bluetooth connec

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Full-time

Depends on Experience

Staff Mobile Engineer - Kotlin Multiplatform

Remote or Austin, Texas

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Today

About the Role: We're building a flagship cross-platform application on Kotlin Multiplatform (KMP) using Compose Multiplatform as well as SwiftUI. The ideal candidate will have a proven track record of developing and deploying native mobile apps using KMP technology. Responsibilities: Shared KMP modules - You will write shared Kotlin Multiplatform code that provides significant, testable business logic and repositories.Compose Multiplatform UI and Native SwiftUI - You will write user interface

Full-time

Lead Mobile Software Engineer - Remote

Remote or Minnetonka, Minnesota

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Today

Optum Tech is a global leader in health care innovation. Our teams develop cutting-edge solutions that help people live healthier lives and help make the health system work better for everyone. From advanced data analytics and AI to cybersecurity, we use innovative approaches to solve some of health care's most complex challenges. Your contributions here have the potential to change lives. Ready to build the next breakthrough? Join us to start Caring. Connecting. Growing together. Lead the desi

Full-time

USD 112,700.00 - 193,200.00 per year

Staff Software Engineer, Mobile (App Infrastructure)

Remote

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Today

At Affirm, we exist for the moments that matter-giving people a clear, predictable way to pay over time, with no hidden fees, no surprises, and no tradeoffs on what matters most. App Infrastructure is the team behind Affirm's shared mobile app infrastructure - the platform every other mobile feature team builds on. We own the app's shared components: design system, networking, observability, experimentation, CI/CD, app releases, developer tooling, availability/stability, and more. We care about

Full-time

USD 230,000.00 - 290,000.00 per year

Mobile Engineer

Remote or Austin, Texas

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Today

Job Title Mobile Engineer Job Description Summary This Mobile role is based in San Antonio, Texas. Valid Drivers License is required. Job Description Essential Responsibilities: Perform all plumbing, electrical, or HVAC requirements of the building(s)Maintain heating equipment, chillers (air and/ or water cooled), DX units, pumps, cooling towers, fan coil units, VAV, and air distribution systems, etc.Monitor and adjust all mechanical/pneumatic equipment, steam stations, control gauges, distri

Full-time

USD 37.53 - 44.15 per hour

Mobile QA Automation Engineer

Remote

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Today

5+ years in QA, with 3+ years in mobile app testing (native, hybrid, and mobile web) Strong Python and Pytest: fixtures, parametrization, markers, conftest design, plugins (pytest-xdist, pytest-html/Allure) Hands-on BrowserStack (App Automate / Automate): device-matrix strategy, parallel runs, capabilities config, debugging from session logs and videos Appium for mobile automation, using solid locator strategies and handling gestures, permissions, and app lifecycle Framework design with Page

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Contract

Depends on Experience

Mobile Developer jobs in Missouri, USA