Full Stack Engineer

IIInigence is a Los Angeles–based, AI-driven software development company with 7+ years of experience building advanced applications for startups, enterprises, and global brands. We develop custom AI systems, full-stack web platforms, and high-quality mobile apps across multiple industries.

We are looking for a talented Full Stack & Mobile Engineer with strong React Native or native mobile development experience to join our team on a contract basis. This role is ideal for someone who can build both robust backend systems and polished mobile experiences.

Responsibilities Build and maintain full-stack applications using React, Next.js, Node.js, and TypeScript

Develop high-performance mobile applications using React Native , iOS (Swift) , or Android (Kotlin / Java)

Integrate mobile apps with backend APIs, AI features, and cloud-based services

Collaborate with AI engineers to embed LLMs, vector search, and agent-based workflows into mobile and web products

Implement secure authentication, push notifications, offline capabilities, and performant mobile UI / UX patterns

Write clean, reusable, testable, and scalable code across web and mobile stacks

Participate in architectural planning and technical decision-making

Debug, optimize, and ensure smooth performance across devices and screen sizes

Communicate proactively within a distributed remote team

Required Skills 2+ years of full-stack engineering experience

Strong expertise in React , Next.js , Node.js , and TypeScript

Proven experience building mobile apps using React Native or native iOS / Android

Experience with relational and NoSQL databases (PostgreSQL, MongoDB, etc.)

Strong understanding of API development, authentication, and system design

Ability to work independently and deliver high-quality results on time

Excellent communication and problem-solving skills

Preferred Skills (Nice to Have) Experience integrating Azure AI , OpenAI, or agentic AI pipelines into mobile and web applications

Familiarity with App Store / Play Store deployment pipelines

Experience using mobile device features (camera, sensors, GPS, media, BLE, etc.)

Knowledge of CI / CD, Docker, cloud infrastructure (Azure / AWS / GCP)

Background in microservices architecture or serverless systems

Experience with React Native Expo and multi-platform delivery

What We Offer Opportunity to build cutting-edge AI-powered mobile and web applications

Flexible remote work environment

Potential for long-term contract extensions

Work closely with senior engineers, AI teams, and product designers

A chance to contribute to high-impact products used by enterprise clients

About IIInigence IIInigence is a premier custom AI solutions and software development company based in Los Angeles. With 50+ completed projects across industries, we create intelligent full-stack platforms and advanced mobile applications that empower businesses to scale, innovate, and stay ahead of the market.