AR/VR/Full Stack Software Engineer

Senior Full Stack Engineer AI/ML, VR/AR & Immersive ExperiencesContract (612 months) | Remote (EST or CST time zones preferred) | Contract or Contract-to-Hire

Expert Technical Solutions has an immediate opening for a Sr. Full Stack Engineer with a focus on VR/AR. Our client is developing an immersive AI experience that merges storytelling, interactivity, and advanced design to shape how people engage with new ideas. The project sits at the intersection of creativity and technology, aiming to deliver something truly next generation in look, feel, and purpose. They are currently in stealth mode and expanding their team with an AR/VR developer who can help craft a cinematic, real-time experience that pushes visual and interactive boundaries.

Were looking for a Senior Full Stack Engineer who lives at the intersection of AI/ML, VR/AR, and modern web development. Youll work directly with our CTO and founding team to bring our immersive product vision to life.

This is not a typical app build were pushing into new territory. We need someone who can think beyond standard patterns, experiment, and help shape a category-defining product.

What Youll Do

• Design and build immersive, experiences that feel human, not robotic.
• Lead development of our AR/VR layer using Unity (C#) and related tools, with a strong focus on:
• 3D graphics and real-time rendering
• Character systems and animation
• Cross-platform deployment - WebGL, mobile, desktop, VR deployment WebXR
• Performance optimization for smooth, responsive experiences
• Integrate and orchestrate AI/ML systems:
• LLMs and other AI APIs (text, audio, video, multimodal)
• Real-time inference and streaming experiences (WebSockets, etc.)
• Multi-modal interactions across voice, text, and visual interfaces
• Own backend services end-to-end:
• Python (FastAPI or Django) services and REST/WebSocket APIs
• Real-time and event-driven architectures
• Database design (PostgreSQL and/or MongoDB)
• Authentication, security, and integration with third-party APIs
• Build and connect the web front end:
• React + TypeScript, modern UI frameworks (e.g., Tailwind)
• Responsive, mobile-first interfaces
• Integration patterns between Unity/VR clients and web front-end
• Design, run, and optimize cloud infrastructure:
• AWS and/or GCP for production deployments
• Docker, Kubernetes, CI/CD pipelines
• Infrastructure as Code (Terraform/CloudFormation)
• Cost and performance optimization in a startup environment
• Collaborate closely with the founding team on product design, game-theory/gamification elements, and end-to-end user journeys.
• Work independently, make strong architectural decisions, and deliver quickly in a fast-moving startup.

Required Skills:

Youre very likely a fit if you can honestly say yes to most of these:

• Youve built and shipped Unity applications (Using VR/AR with WebXR, Quest, ARKit, or ARCore) with real-time 3D characters/avatars.
• Youve integrated AI systems (LLMs or other AI APIs such as OpenAI/Anthropic, audio/video, multimodal).
• Youre comfortable with Python backends (FastAPI/Django), WebSockets, and relational/NoSQL databases (Postgres/Mongo).
• Youve deployed production systems on AWS and/or GCP, using Docker, Kubernetes, and CI/CD, with some IaC (Terraform/CloudFormation or similar).
• You can own projects end-to-end, from idea architecture implementation deployment, and you move fast.

Core Technical Requirements

VR/AR & Immersive Technologies

• Unity Engine (C#) production-level experience
• VR/AR development (e.g., Meta Quest, ARKit, ARCore, WebXR)
• 3D graphics, shaders, and real-time rendering
• Character/animation systems for human-like avatars
• Cross-platform deployment (WebGL, mobile, desktop, VR headsets)
• Performance tuning for smooth immersive experiences
• Familiarity with WebGL/WebXR and related standards

AI/ML Integration

• Integrating LLMs and AI APIs (text, audio, video, multimodal)
• Designing AI-driven user flows and interactions
• Real-time inference and streaming experiences
• Model deployment/serving experience is a plus

Backend Development

• Python (FastAPI or Django) in production environments
• RESTful APIs + WebSockets/real-time messaging
• Event-driven or streaming architectures
• PostgreSQL and/or MongoDB schema design and optimization
• Security, authentication/authorization, and API integration best practices

Frontend Development

• React + TypeScript
• Modern CSS frameworks (e.g., Tailwind)
• State management (Redux, Context, or similar)
• Responsive, mobile-first UI design
• Integrating web front-ends with Unity/VR experiences

Cloud & DevOps

• AWS and/or GCP in production
• Docker and Kubernetes
• CI/CD pipelines and automated testing
• Infrastructure as Code (Terraform/CloudFormation or equivalent)
• Understanding of serverless patterns and cost-efficient architectures

Qualifications

• 5+ years of professional full-stack development experience
• 3+ years Unity Engine experience
• 2+ years VR/AR development experience
• Strong Python backend and React/TypeScript frontend skills
• Proven experience with cloud infrastructure (AWS and/or GCP)
• Demonstrated experience integrating and deploying AI/ML systems
• Solid grasp of computer graphics fundamentals and 3D math
• A portfolio/GitHub showcasing complex, shipped projects (ideally including immersive or AI-driven products)

Bonus Points

• Game development or game-engine background
• Experience with audio/video processing
• Real-time multiplayer or collaborative applications
• ML model training or fine-tuning experience
• Published research or open-source contributions
• Experience building SDKs, APIs, or developer tools

How You Work

• Youre comfortable working independently with high ownership.
• You enjoy ambiguity and shaping v1 products from scratch.
• You think in systems and care about architecture as much as implementation.
• You communicate clearly and collaborate well with non-technical stakeholders.
• You like experimenting, iterating quickly, and pushing beyond conventional app design.

Position Details

• Engagement: 612 month contract (contract-only or contract-to-hire)
• Start: Ideally within 10 days
• Location: Remote (US-based; EST/CST preferred, PST considered)
• Travel: Occasional short trips for in-person brainstorming/work sessions
• Reporting to: CTO
• Compensation: Competitive and commensurate with experience
• Confidentiality: NDA required before deep product details are shared

Job Types: Full-time, Part-time, Contract

Pay: $60.00 - $80.00 per hour

Benefits:

• Dental insurance
• Health insurance
• Visa sponsorship

Work Location: Remote