Full-Stack Engineer - AI Agents & Investment Research

About Us

Alpha FinTech Limited is a Hong Kong fintech company developing AI applications for investment research. Our platform, ZenFinAI (zenfinai.com), focuses on US and Hong Kong equity research and strategy analysis. We are a small, founder-led team, and you will be one of our first engineers.

The Role

Your initial focus will be full-stack development, website maintenance and product reliability. Over time, the role will place greater emphasis on AI agent development and investment-research workflows. You will work directly with the founder and help turn product ideas into working features.

What You'll Do

• Maintain and improve ZenFinAI across the front end, back end, deployment and production troubleshooting.
• Build and ship product features, integrate APIs and manage data flows and databases.
• Develop AI agent workflows, including LLM integration, agent orchestration, prompt design and output evaluation.
• Build investment-research data pipelines, including SEC EDGAR filing ingestion and LLM-based information extraction.
• Evaluate AI models and tools for quality, reliability, latency and cost; automate research and monitoring tasks.

What We're Looking For

• Solid programming skills, preferably Python, plus practical front-end and back-end web development experience.
• Hands-on experience using LLM APIs and an interest in building reliable AI agent applications.
• Ability to learn quickly, troubleshoot independently and take a feature from implementation to deployment.
• A degree in Computer Science or a related field, or equivalent practical experience.
• Fluent Mandarin and the ability to read English technical documentation independently.
• Interest in investing and financial markets; a finance background is not required.
• Existing legal right to work in Hong Kong. The company does not provide employment visa sponsorship.
• Junior and mid-level candidates are welcome, including fresh graduates who can demonstrate a complete, working project. Practical project experience and delivery ability matter more than job titles.

Nice to Have

Experience with financial data or SEC EDGAR; RAG, knowledge graphs or vector databases; local LLM deployment; quantitative backtesting; or agent frameworks.

Working Arrangements

• Full-time position, with a five-day work week and MPF contributions.
• Hong Kong-based hybrid working. You must be available to attend our Fo Tan office when needed.
• Direct collaboration with the founder, meaningful product responsibility and input into technical decisions.