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Freelance Next Js Developer Jobs in Baltimore, MD

Booz Allen Hamilton

Software Engineer, Senior

Laurel, MD

$86K - $198K/yr

As a full stack developer, you can resolve a problem with a complete end-to-end solution in a fast ... Experience building user interfaces with modern UI libraries, such as React or Next.JS * Experience ...

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How much do freelance next js developer jobs pay per hour?

As of Aug 23, 2026, the average hourly pay for freelance next js developer in Baltimore, MD is $22.82, according to ZipRecruiter salary data. Most workers in this role earn between $18.65 and $18.65 per hour, depending on experience, location, and employer.

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Senior Full-Stack AI Application Engineer - iOS & VisionOS Emphasis

AST SpaceMobile

Lanham, MD • On-site

$140K/yr

Full-time

Re-posted 17 days ago

Job description

Position Overview

We are seeking a Senior FullStack AI Application Engineer with strong expertise in native iOS and VisionOS development to design and deliver advanced AIpowered mobile and spatial computing applications. This role focuses on building intuitive, highperformance user experiences that leverage computer vision, machine learning, and immersive 3D interfaces to support engineering, manufacturing, and operational workflows.

You will own the application layer endtoend while collaborating closely with crossfunctional teams to ensure seamless integration across mobile, spatial, and web platforms.

Key Responsibilities

  • Design, develop, and maintain native iOS (Swift/SwiftUI) and VisionOS applications for AIenabled tools and operational workflows
  • Develop immersive experiences on spatial and extended reality platforms for visualization, guided workflows, and interactive 3D environments
  • Implement ondevice machine learning inference for realtime analysis and visualization using mobile hardware capabilities
  • Develop camerabased workflows optimized for challenging physical environments and guided user interaction
  • Architect offlinefirst mobile solutions with local data storage and background synchronization
  • Integrate mobile and spatial applications with backend services and web platforms for unified user experiences
  • Build scalable interfaces for realtime notifications, alerts, and status updates
  • Contribute to fullstack web applications supporting analytics, monitoring, and reporting use cases
  • Optimize application performance, reliability, and usability for extended daily use
  • Collaborate with product, data, and infrastructure teams to align application design with backend systems and AI pipelines

Qualifications

Education

Bachelor's degree in Computer Science, Engineering, or a related field, or equivalent practical experience

Experience

  • A minimum of 5 years of fullstack software development experience
  • At least 3 years of native iOS application development with productionlevel deployment

Preferred Qualifications

  • Experience developing VisionOS or spatial computing applications
  • Background building mobile applications for industrial, operational, or field environments
  • Experience integrating computer vision or AI capabilities into mobile or AR applications
  • Familiarity with 3D rendering, spatial visualization, or immersive UI concepts
  • Experience supporting products through full lifecycle from concept to production
  • Exposure to enterprise mobile deployment or device management environments

Soft Skills

  • Strong interpersonal skills and ability to collaborate effectively with crossfunctional teams
  • Excellent written and verbal communication skills
  • Proven ability to take ownership of complex projects from design through delivery
  • Strong problemsolving skills with a proactive, solutionoriented mindset
  • Meticulous attention to detail to ensure highquality, reliable applications

Technology Stack

  • Swift, SwiftUI, VisionOS, RealityKit, ARKit
  • Core ML, ondevice inference frameworks
  • React, Next.js, Pythonbased APIs (e.g., FastAPI or similar)
  • Relational and caching databases (e.g., PostgreSQL, Redis)
  • Cloudbased services and containerized environments
  • RESTful and realtime communication patterns (e.g., WebSockets)

Physical Requirements

  • Ability to work in a standard office or hybrid environment
  • Prolonged periods of working on a computer and mobile devices
  • Ability to participate in design reviews, testing, and collaborative sessions as needed

This job description may not be inclusive to the duties and responsibilities listed. Additional tasks may be assigned to the employee from time to time or the scope of the job may change as needed by business demands. 

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