Agentic AI Prototype Engineer

The Apex Group was established in Bermuda in 2003 and is now one of the world’s largest fund administration and middle office solutions providers.

Our business is unique in its ability to reach globally, service locally and provide cross-jurisdictional services. With our clients at the heart of everything we do, our hard-working team has successfully delivered on an unprecedented growth and transformation journey, and we are now represented by over circa 13,000 employees across 112 offices worldwide.Your career with us should reflect your energy and passion.

That’s why, at Apex Group, we will do more than simply ‘empower’ you. We will work to supercharge your unique skills and experience.

Take the lead and we’ll give you the support you need to be at the top of your game. And we offer you the freedom to be a positive disrupter and turn big ideas into bold, industry-changing realities.

For our business, for clients, and for you

Agentic AI and Prototype Engineer

Role Location           Greater Boston Area
Reports To                Chief AI and Data Science Officer

Are you a bold thinker ready to shape the AI future of a leading financial services institution? This is a rare opportunity to step into a strategic role with a global remit—where your technical brilliance, entrepreneurial mindset, and ability to move fast can catalyse both internal transformation and industry-level innovation. The environment is an entrepreneurial, open culture, where there is huge growth and a solid career path for the right individual.

We're seeking an practical and visionary Agentic AI and Prototype Engineer to join a team deeply committed to operational excellence, cutting-edge innovation, and responsible AI. This role places you at the core of our AI evolution—designing, deploying, and scaling intelligent assistants and agentic systems that deliver meaningful wins across the enterprise.

Key Responsibilities:

The successful incumbent will initially be responsible for the following, with scope expanding as the function matures:

• Rapidly design, build, and iterate agentic AI pilots using large language models (LLMs), APIs, and prompt engineering.
• Ensure that delivering early quick wins with usable AI assistants or copilots.
• Translate complex business logic and UX needs into user-centric and impactful outputs that are accessible even to non-technical stakeholders.  Outputs must demonstrate real business impact.
• Partner cross-functionally with infrastructure, data, and product teams to deliver MVPs within weeks.
• Lead experimentation cycles and validation frameworks to continuously refine and elevate AI solutions.
• Actively embrace and contribute to an innovation-first team culture within a flat, collaborative hierarchy.

Required Skills and Qualifications:

• Proven experience designing and building agentic AI systems using LLMs, memory, and tool integration (e.g., LangChain, AutoGPT, LangGraph, or other equivalent).
• Hands-on LLM integration with enterprise tools and APIs, including tool-augmented agents and RAG pipelines.
• Strong rapid prototyping skills, with ability to build functional MVPs, and iterate quickly.
• Exposure to multi-modal AI systems (text, code, tabular, documents) in enterprise or financial contexts.
• Experience deploying agents using frameworks like FastAPI, Streamlit, or Docker, with built-in monitoring and observability.
• Effective collaborator across product, engineering, and business functions— able to translate technical systems into business value.

Preferred Personal Attributes:

• A technical expert, a visionary leader, or ideally both—this role is designed to support excellence in either or both profiles.
• A strategic thinker with an instinct for agile, scalable execution.
• A collaborator who thrives in non-hierarchical, fast-moving environments.
• Someone with entrepreneurial flair, backed by the support of an established institution.
• Deeply committed to the ethical and impactful use of AI.

Why this role and why Apex?

• You’ll have the flexibility and autonomy to drive AI transformation—from ideation to scale
• You’ll work at the frontier of innovation with a mandate to shape how AI is used within financial services—and potentially beyond
• You’ll grow, fast. This isn’t just a job. It’s a launchpad for visionary thinkers to build what's next.

What you will expose:

• Be part of a dynamic and fast-paced team that makes a genuine impact on the success of the entire organisation.
• Opportunity to work with a diverse, agile, and global t