(Senior) AI R&D Engineer (Bank, Agentic AI development, GCP & Google Gemini)

JustOneGalaxy Recruitment Limited; Hong Kong; On-site; HKD 900,000 - 1,300,000; Full time

Job summary

JustOneGalaxy Recruitment Limited seeks a Senior (AI R&D) Engineer to research and deploy cutting-edge AI solutions within a banking environment. You will work hands-on on Agentic AI, Gen AI, and multi-agent systems, leveraging GCP and Gemini models to deliver business value.

You will bridge model development with cloud integration, build REST APIs, and contribute to MLOps and real-time deployment while collaborating with cross-functional teams to meet regulatory standards.

Qualifications

• Bachelor's or Master's degree in Computer Science, Data Science, AI, or related quantitative field.
• Hands-on experience in Agentic AI development.
• Proficiency with GCP including Vertex AI and deployment.

Responsibilities

• Lead the R&D and implementation of Agentic AI frameworks, multi-agent systems, and Generative AI applications.
• Architect AI solutions on GCP (Vertex AI), data pipelines, and deployment.
• Build, train, and optimize ML models with feature engineering and generalization.
• Apply prompt engineering and harness strategies to drive automation and intelligent ops.
• Prototype interactive AI applications using Python frameworks and UI tools.
• Design and integrate AI workloads with core banking systems via RESTful APIs.
• Maintain scalable MLOps pipelines on GCP for monitoring and production deployment.
• Collaborate with product, data science, and business stakeholders under regulatory standards.

Skills

Python

PyTorch

TensorFlow

Streamlit

Flask

Gradio

REST APIs

Prompt engineering

Agentic AI development

Agile mindset

Education

Bachelor's or Master's in CS/DS/AI

Tools

Google Cloud Platform (GCP)

Vertex AI

Hermes Agent

DeepSeek Harness

Claude Code

LoRA/QLoRA

Job description

The (Senior) AI R&D Engineer is responsible for researching, designing, developing, and deploying cutting-edge AI solutions to enhance business processes and solve complex challenges within the bank. This role focuses on hands-on Research & Development (R&D), leveraging Google Cloud Platform (GCP), Google Gemini, and Agentic AI development to build intelligent, high-impact systems.

The ideal candidate bridges AI model development, cloud integration, and application engineering. Collaborating with cross-functional teams, you will build and fine-tune large language models (LLMs), architect agentic workflows, develop REST APIs, and integrate AI services into existing infrastructure. Strong communication skills are essential to align technical capabilities with business goals, ensuring innovative AI applications deliver measurable value across banking operations.

Key Responsibilities

Agentic AI & Generative AI Development: Lead the R&D and implementation of Agentic AI frameworks, multi-agent systems, and Generative AI applications. Design and deploy advanced AI solutions powered by Google Gemini and leading foundation models, fine-tuning them on banking-specific data for domain- critical tasks such as compliance, risk control, and operational automation.

GCP Ecosystem & Cloud Architecture: Architect and manage AI solutions natively on Google Cloud Platform (GCP) (e.g., Vertex AI), utilizing GCP services for model training, deployment, data pipelines, and application hosting.

Machine Learning Model Lifecycle Management: Build, train, and optimize machine learning models with strong feature engineering and generalization mechanisms to maintain effectiveness across evolving banking use cases.

Prompt & Harness Engineering: Apply advanced prompt engineering strategies (e.g., few-shot, chain-of-thought). Research and evaluate emerging harness engineering frameworks and tools (e.g., Hermes Agent, DeepSeek Harness, Claude Code) to drive automated development and intelligent operations.

AI Prototyping & Application Development: Rapidly construct interactive prototypes and user interfaces using Python frameworks (e.g., Streamlit, Flask, Gradio) and front-end tooling to demonstrate agentic AI and Gen AI capabilities.

System Integration & API Engineering: Connect AI models and agentic workflows to core banking systems and backend services via robust RESTful APIs, ensuring seamless data flow, security, and performance.

MLOps & Pipeline Management: Build and maintain scalable MLOps and CI/CD pipelines on GCP to support real-time monitoring, automated updates, and seamless model deployment in production environments.

Cross-Functional Collaboration & Innovation: Work alongside product managers, data scientists, and business stakeholders to translate strategic business needs into technical execution while adhering to regulatory and compliance standards.

Qualifications & Requirements

Education: Bachelor's or Master's degree in Computer Science, Data Science, AI, or a related quantitative field.

Core Technical Expertise:

Strong hands-on experience in Agentic AI development (agent frameworks, tool-use, multi-agent orchestrations).

Demonstrated proficiency with Google Cloud Platform (GCP), including Vertex AI and cloud-native AI deployment.

Deep experience working with Google Gemini models and parameter-efficient fine-tuning (e.g., LoRA, QLoRA).

Proven track record in AI R&D, model lifecycle management, and full-stack AI integration.

Programming & Tools:

Expert proficiency in Python for backend AI engineering, scripting, and rapid prototyping.

Experience with standard frameworks (PyTorch, TensorFlow) and UI tools (Streamlit, Flask, Gradio).

Prompt & System Design: In-depth knowledge of prompt engineering techniques (few-shot, reasoning chains) and exposure to autonomous agent workflows.

APIs & Data: Strong capability in designing, building, and consuming RESTful APIs, with experience handling data integrations securely.

Soft Skills: Outstanding problem-solving skills, agile mindset, and the ability to articulate complex AI concepts to cross-functional stakeholders within the bank.