Senior AI Software Engineer, Coding Agent

Location: UK-London

Remote Type: Onsite

Time Type: Full time

Job Description

About the Hiring Team

Tencent Overseas IT has the mission to empower Tencent’s rapid global growth with future ready, global IT platforms, applications and services. We are chartered to lead the Overseas IT strategy, architecture, roadmap and execution. Satisfying our internal/external customers and becoming a world class global IT team are our top aspirations.

What the Role Entails

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 be a force multiplier for our game studios' development pipelines, designed to accelerate our developers by providing intelligent assistance for code generation, in-depth code inspection, and advanced debugging, etc.

You will be responsible for the end-to-end architecture, design, and development of the core components of this AI-powered agent. This is a high-impact role that will directly influence our game development velocity and the quality of our games.

Duties and Responsibilities

• Architect and lead the development of a robust, scalable AI Coding Agent tailored to our game development workflows (primarily for UE/Unity-based games in C++, C#, and other relevant languages).

• Integrate the AI agent directly into developer IDEs (like Visual Studio, VS Code) and our game engines (e.g., Unreal Engine, Unity).

• Collaborate closely with game developers, technical artists, and engine programmers to gather requirements, understand pain points, and iterate on the tool's features.

• Optimize model inference speed and resource usage to ensure the agent is fast and responsive without hindering developer workstations.

• Mentor other engineers on the team and establish best practices for AI development, agentic RAG and agent-based architectures.

• Stay current with the latest research in AI, code generation, and LLMs to continuously improve the agent's capabilities.

Who We Look For

Who we are looking for

• Customer-oriented, and could work at a very fast pace

• A positive, self-motivated, and passionate person

• Independent, insistent, and open-minded

• A great team player, and both dependable and autonomous

• Data-driven decision maker

Requirements

• 8+ years of professional software engineering experience, with a strong background in Python, TypeScript, C++, or C#.

• Proven experience in building complex AI systems, with hands-on expertise in Retrieval-Augmented Generation (RAG) and AI Agent architectures.

• Deep, Hands-on experience with LLM APIs and/or 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 work on complex, ambiguous projects, and 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 (Unreal, Unity).

Equal Employment Opportunity at Tencent

As an equal opportunity employer, we firmly believe that diverse voices fuel our innovation and allow us to better serve our users and the community. We foster an environment where every employee of Tencent feels supported and inspired to achieve individual and common goals.