Primenet Ltd is looking for a highly capable Senior AI Automation & Mobile Game Engineer to join our remote engineering team in the Philippines.
This is a dual-focus role for a practical, full-stack engineer who can build production-ready AI automation systems while also developing, optimizing, testing, and publishing mobile games for iOS.
The ideal candidate is comfortable working across AI agents, LLM-powered workflows, APIs, system integrations, Unity, C#, iOS deployment, and 3D game assets. You should be able to take projects from concept and prototype through implementation, testing, optimization, and production release.
This role is best suited to someone who enjoys solving complex problems independently, learning new technologies quickly, and delivering complete working solutions rather than only contributing to isolated tasks.
Key Responsibilities
AI Automation and Engineering
- Design, build, and maintain AI agents and intelligent automation workflows.
- Integrate large language models into internal tools, business processes, and customer-facing applications.
- Develop reliable workflows using Python, JavaScript, and TypeScript.
- Build integrations with APIs, databases, SaaS platforms, and internal systems.
- Work with modern AI frameworks and technologies such as:
- Retrieval-Augmented Generation (RAG)
- LangChain
- LangGraph
- Model Context Protocol (MCP)
- Agentic workflows
- Vector databases and semantic search
- Tool calling and function calling
- Create systems that can process information, make decisions, call tools, and complete multi-step tasks.
- Design prompts, structured outputs, evaluation processes, and safeguards for AI systems.
- Improve the reliability, performance, cost efficiency, and maintainability of AI workflows.
- Debug integrations and resolve issues across backend services, APIs, automation platforms, and deployment environments.
- Write clean, documented, maintainable, and production-ready code.
Mobile Game Development
- Develop and maintain mobile games using Unity and C#.
- Build gameplay systems, user interfaces, input systems, game mechanics, and performance-sensitive features.
- Prepare Unity projects for iOS deployment.
- Integrate mobile platform features, analytics, advertising, in-app purchases, and other services when required.
- Test and debug games on physical iPhones and across relevant iOS versions.
- Optimize performance, memory usage, loading times, battery consumption, and build size.
- Identify and fix issues involving device compatibility, rendering, input, networking, and mobile performance.
- Prepare production builds and manage the iOS release process.
- Publish and update games through Apple App Store Connect.
- Assist with certificates, provisioning profiles, signing, TestFlight, App Store metadata, review submissions, and release management.
- Collaborate on game design, technical architecture, monetization, and live updates.
3D Assets and Optimization
- Create, configure, import, and optimize 3D assets for mobile games.
- Optimize meshes, materials, textures, shaders, animations, lighting, and prefabs.
- Configure assets for appropriate mobile performance and visual quality.
- Use suitable compression, level-of-detail, batching, and texture strategies.
- Troubleshoot visual issues and asset-related performance problems.
- Maintain organized, scalable, and production-ready Unity project structures.
Mandatory Requirements
Applicants must meet the following requirements:
- Demonstrated professional experience in AI automation, software engineering, or a related field.
- Strong programming experience with Python and JavaScript or TypeScript.
- Practical experience building AI agents, LLM applications, intelligent workflows, or system integrations.
- Experience with one or more of the following:
- LangChain
- LangGraph
- RAG systems
- MCP
- Vector databases
- AI tool calling
- Workflow automation
- API and SaaS integrations
- Strong experience with Unity and C#.
- Demonstrated experience developing and publishing mobile games for iOS.
- Experience managing or contributing to the Apple App Store submission process.
- Access to a Mac that can run Xcode and Unity.
- Regular access to a physical iPhone for development, testing, debugging, and deployment.
- Ability to create, configure, and optimize 3D assets for mobile games.
- Strong debugging, problem-solving, and independent working skills.
- Ability to communicate clearly in written and spoken English.
- Ability to work full-time during agreed working hours and reliably meet deadlines.
Preferred Qualifications
The following are valuable but not mandatory:
- Five or more years of professional software engineering experience.
- Five or more years of Unity, C#, or mobile game development experience.
- Experience taking games from an early prototype through commercial release.
- Experience maintaining games after launch and publishing updates.
- Experience with Git, GitHub, CI/CD, cloud services, databases, and containerized development.
- Experience with FastAPI, Node.js, React, Next.js, or similar technologies.
- Experience with OpenAI, Anthropic, Google, or other commercial and open-source AI models.
- Experience deploying AI applications to cloud environments.
- Experience with evaluation, observability, logging, and monitoring for AI systems.
- Experience with multiplayer, networking, mobile monetization, analytics, or live-service games.
- Familiarity with 3D tools such as Blender or similar software.
- Experience optimizing Unity applications for low- and mid-range mobile devices.
- Knowledge of SAP Business One is a secondary asset but is not required.
What We Are Looking For
We are looking for a hands-on senior engineer who:
- Can independently turn requirements into working software.
- Understands both the technical details and practical business objectives of a project.
- Has shipped real products, applications, automations, or games.
- Can work across the full development lifecycle.
- Writes code that is reliable, understandable, secure, and maintainable.
- Is comfortable investigating problems without requiring constant supervision.
- Can balance speed of delivery with long-term quality.
- Understands the limitations and risks of AI-generated output.
- Can validate, test, and improve AI systems rather than relying on them blindly.
- Is willing to work across disciplines, including backend engineering, AI automation, game development, 3D assets, testing, and deployment.
Equipment Requirements
Because this role includes iOS development and physical-device testing, applicants must have:
- A Mac suitable for running current versions of Xcode and Unity.
- A physical iPhone available for regular testing and debugging.
- A reliable internet connection.
- A suitable home-office setup for full-time remote work.
Access to the required equipment is mandatory. Please confirm your equipment availability in your application.
Important Note
This position requires genuine experience delivering software and mobile games. We are especially interested in candidates who can demonstrate completed, deployed, or publicly accessible work.
- Please do not submit AI-generated descriptions without being prepared to explain the architecture, implementation decisions, technical challenges, and your personal contribution to each project.
Pay: Php90,000.00 - Php120,000.00 per month
Work Location: Remote