AI Engineer (Mid-Senior Level)

Banyan Infrastructure is a project finance software platform purpose-built for green and climate infrastructure deal teams, lenders, and fund managers. The platform provides a unified workflow and data layer that replaces fragmented tools such as Salesforce, Monday.com, and Excel, enabling organizations to manage the full lifecycle of infrastructure deals — from origination and underwriting through portfolio management and compliance reporting. Its customers include owner-operators, developers, infrastructure funds, project financiers, green banks, and community funds. The company's mission is closely tied to accelerating the deployment of sustainable and climate-focused infrastructure by removing the operational friction that slows down green finance. By centralizing deal pipelines, due diligence processes, covenant tracking, and portfolio risk monitoring in a single platform, Banyan Infrastructure helps climate-focused financiers close deals faster and scale their portfolios without proportional increases in headcount. What makes Banyan Infrastructure distinctive is its deep focus on the project finance niche within the green economy, offering tools specifically designed for the complex reporting, compliance, and covenant management requirements of infrastructure lending and investment. The platform creates audit-ready submission records and provides real-time KPI alerts, allowing teams to proactively identify at-risk investments and stay ahead of stakeholder obligations.

Why This Role Matters

You'll join a small, high-impact team expanding Banyan's core platform with applied AI – including work in document parsing, data extraction, generative AI, and conversational interaction with complex financial and operational data. This is a foundational role and a rare chance to deeply shape and define how applied AI transforms the financing of sustainable infrastructure.

What you’ll do:

• Design and implement AI-powered services using modern paradigms like Model Context Protocol (MCP), Retrieval-Augmented Generation (RAG), Reasoning and Acting (ReAct), and agentic frameworks to automate complex financial analysis and due diligence workflows.
• Develop secure, scalable, and maintainable APIs (primarily Python; Java experience also valued).
• Collaborate closely with the existing two-person AI pod to explore, prototype, and productize AI solutions.
• Integrate with LLM APIs (OpenAI, Gemini) and vector databases to enhance automation initiatives.
• Partner cross-functionally with Product, Customer Success, and Sales teams to identify opportunities for AI assistance and build AI expertise across the company.
• Advocate for and apply healthy coding practices and Agile methodologies.
• Participate actively in code reviews, pair programming, and knowledge development to implement new code and debug existing systems.
• Provide 2nd tier production support and proactively identify ways to improve our systems.
• Build financial and cleantech subject matter expertise and stay abreast of new AI technologies and industry trends to inform engineering decisions.

What you’ll need:

• Strong programming experience in Python or Java; comfort in learning the other.
• Demonstrated experience with LLMs, AI APIs, or applied ML workflows.
• Solid understanding of REST APIs, testing frameworks, and cloud deployment (AWS preferred).
• Provide thought leadership that challenges existing processes and delivers clear, structured decision-making frameworks to evaluate implementation tradeoffs.
• Curiosity, pragmatism, and ability to move from prototype to production.
• Clear communicator who enjoys solving problems collaboratively.
• Genuine enthusiasm for Banyan's mission and a willingness to help and mentor other team members.
• Bachelor's degree required.

Bonus skills:

• Experience with Postgres or other modern relational databases.
• Familiarity with Vue.js or modern front-end frameworks.
• Prior experience in financial services or FinTech.
• Exposure to data pipelines, document parsing, or retrieval systems.

How we’ll support your growth and success:

This is more than a job—it's a chance to build expertise at the intersection of fintech and climate tech.

• Direct exposure working closely with founders, executives, and cross-functional teammates.
• Develop cutting-edge industry expertise in fintech, capital markets, and clean infrastructure deployment.
• You will be working on a meaningful product that is actively accelerating clean infrastructure deployment around the world.
• Learn from and with a diverse team of smart, passionate people.

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Reporting & Location: This role reports to VP, Engineering and is a hybrid position based in our San Francisco office (3 days in office/2 remote).

Compensation: $180,000 - $215,000 base salary, commensurate with experience, and meaningful equity.

Visa Sponsorship: At this time, Banyan is unable to provide H1B visa sponsorship for this position.