Sr. AI Software Engineer – Coding Agent

Lightspeed Studios; Palo Alto (CA); On-site; USD 116,200 - 269,100; Full time

Benefits offered by this job

Medical, dental, and vision benefits

401(k) plan participation

Up to 25 days vacation

Job summary

Lightspeed Studios is seeking a Sr. AI Software Engineer in Palo Alto, California to lead the design and development of an innovative AI Coding Agent. This position aims to enhance the efficiency of our game developers through intelligent code generation and debugging support.

The ideal candidate will have over 8 years of experience in software engineering, a strong background in AI systems, and familiarity with game development environments such as Unreal and Unity.

We offer competitive salaries ranging from $116,200 to $269,100, along with comprehensive benefits including medical, dental, and a robust vacation package.

Qualifications

• 8+ years of professional software engineering experience.
• Experience building complex AI systems with Retrieval-Augmented Generation.
• Hands-on experience with LLM APIs and fine-tuning models.

Responsibilities

• Design, implement and maintain the architecture of the AI coding agent.
• Integrate the agent into developer IDEs and game engines.
• Collaborate with game developers to refine tool features.

Skills

Python

TypeScript

C++

C#

AI systems

Prompt engineering

Education

Bachelor’s degree in Computer Science, AI, or Machine Learning

Tools

Visual Studio

VS Code

Unreal Engine

Unity

Job description

About the Hiring Team

Tencent Overseas IT’s mission is to empower Tencent’s rapid global growth with future‑ready, global IT platforms, applications and services. We lead the overseas IT strategy, architecture, roadmap and execution, aiming to support our game studios and become a world‑class global IT team.

Position Overview

We are seeking a Sr. AI Software Engineer to architect and lead the development of a groundbreaking in‑house AI Coding Agent. This tool will accelerate our game developers’ workflows by providing intelligent assistance for code generation, deep code inspection, and advanced debugging across UE/Unity‑based games in C++, C#, and other relevant languages.

Responsibilities

• Design, implement and maintain the end‑to‑end architecture of the AI coding agent.
• Integrate the agent into developer IDEs (e.g., Visual Studio, VS Code) and game engines (Unreal Engine, Unity).
• Collaborate closely with game developers, technical artists and engine programmers to gather requirements, identify pain points, and iterate on the tool’s features.
• Optimize model inference speed and resource usage to keep the agent fast and responsive without hindering workstations.
• Mentor engineering teammates and establish best practices for AI development, agentic RAG and agent‑based architectures.
• Stay current with the latest AI research in code generation and large language models to continuously improve the agent’s capabilities.
• Ensure observability, performance tuning, and production incident response for the deployed agent.

Qualifications

• 8+ years of professional software engineering experience, with a strong background in Python, TypeScript, C++ or C#.
• Proven experience building complex AI systems, particularly with Retrieval‑Augmented Generation (RAG) and AI agent architectures.
• Hands‑on experience with LLM APIs, fine‑tuning and serving open‑source models.
• Strong understanding of prompt engineering and context engineering to maximize model relevance and accuracy.
• Excellent problem‑solving skills and the ability to deliver results in a fast‑paced environment.
• Experience with observability, performance optimization and production incident response.
• Bachelor’s degree in Computer Science, AI, Machine Learning, or a related technical field (or equivalent practical experience).

Preferred Qualifications

• Direct experience building a coding agent or similar developer‑facing AI tool (IDE plugins, CLI, etc.).
• Experience in the game development industry or with game engines such as Unreal or Unity.

Benefits

• Salary range: $116,200 – $269,100 per year (location: US‑California‑Palo Alto).
• Sign‑on payment, relocation package and restricted stock units evaluated on a case‑by‑case basis.
• Medical, dental, vision, life and disability benefits.
• 401(k) plan participation.
• Up to 15–25 days of vacation, 13 holiday days and 10 days of paid sick leave per year.
• Benefits may be adjusted for location, employment status, tenure and role level, and pro‑rated for those who start mid‑year.

Equal Employment Opportunity

We are an equal opportunity employer. We firmly believe that diverse voices fuel our innovation and allow us to better serve our users and community. All qualified applicants receive consideration for employment without regard to race, color, religion, sex, national origin, age, disability, veteran status or any other protected characteristic.