AI Engineer (Agentic Systems)

Data Intellect; Belfast City District; On-site; GBP 70,000 - 120,000; Full time

Benefits offered by this job

Healthcare cover

Flexible working environment

Competitive salary

Job summary

Data Intellect seeks an AI systems engineer to build agentic AI solutions for Tier 1 financial clients. You will design, implement and ship LLM-backed agents that call tools, query data, and reason over it to produce actionable outputs.

Some work runs on local models in client networks while others use cloud APIs. You will collaborate with client engineers and stakeholders, explaining decisions and delivering scalable accelerators that speed future engagements.

Qualifications

• Demonstrable experience building AI agents that use LLMs, cloud hosted or local.
• Fluent use of AI-assisted coding tools in day to day development.
• Software fundamentals: version control, testing, code review, CI/CD.
• Clear client-facing documentation and strong communication.

Responsibilities

• Build and ship LLM-backed agents: tool use, servers, retrieval, orchestration, evaluation and guardrails.
• Balance cloud APIs with locally hosted models to meet client constraints.
• Use AI-assisted development tools and assess their usefulness.
• Translate vague client problems into scoped proofs of concept and maintainable solutions.
• Explain architectural choices to both technical and non-technical stakeholders.
• Create reusable accelerators to speed future engagements.

Skills

LLM agents

Python

TypeScript

CI/CD

Education

Claude Certified Architect (Foundations or Professional)

Tools

MCP server

Job description

Every question matters, every pathway, direction, thought process and conversation. Because every challenge makes us stronger, more knowledgeable, more determined and more valuable to our clients.

We’re not big on egos and we’re not for the faint hearted. We stand for camaraderie, collaboration and change.

Welcome to Data Intellect.

Job Description

We build AI systems that go into production. Our clients are Tier 1 banks and hedge funds with real data volumes and real regulatory pressure and they hire us because we can put working software in front of them quickly.

This role is for an engineer who has already built agentic AI systems and wants to do more. You will design and build agents that call tools, query client data, reason over it and hand back something a user can act on. Some of that runs against cloud model APIs, some of it runs on local models inside a client's network because the data cannot leave the building. You need to be comfortable with both.

You will work directly with client engineers and stakeholders, as an AI specialist.

What you will be doing

• Building and shipping LLM-backed agents: tool use, MCP servers, retrieval, orchestration between specialist agents, evaluation and guardrails
• Working across cloud model APIs and locally hosted models, and making sensible calls about which fits a given client's constraints
• Using AI-assisted development tools as a core part of how you work, and having a view on where they help and where they get in the way
• Turning a vague client problem into a scoped proof of concept, then into something maintainable
• Explaining your design decisions to people who are technical and non-technical people.
• Building reusable accelerators so the next engagement starts further along than the last one

Qualifications

• Demonstrable experience building AI agents that use LLMs, cloud hosted or local. We will want to talk in detail about something you have built, why you built it that wayand what broke
• Fluent use of AI-assisted coding tools (Claude Code, Cursor, Copilot or similar) in day to day development
• Software engineering fundamentals: version control, testing, code review, CI/CD and an understanding of what makes code someone else can maintain
• Strong written and spoken communication. You can write a clear client-facing document and hold your own in a technical conversation with a client
• Able to work with minimal supervision. You take a problem, ask the right questions earlyand come back with progress rather than waiting to be unblocked
• Genuine interest in where agentic AI is going, evidenced by what you read, build or contribute to outside of what your last employer asked of you
• Claude Certified Architect (Foundations or Professional), or an equivalent credential from another vendor. If you have not done one, we will support you through it
• Background in financial services, market data or another regulated, data-heavy domain
• Experience with MCP server development
• Experience with time series or analytical databases (kdb+/KDB-X, ClickHouse, Oracle)
• Python, Java and TypeScript
• Experience deploying models on-premise or in a locked-down cloud environment

Who does well here

• People who are honest about what they do not know.
• People who put in the work. Consultancy has peaksand clients notice who shows up during them
• People who can hold a relationship as well as a codebase. Much of our repeat work comes from a client trusting a specific engineer.
• People who collaborate well and share what they learn, rather than keeping the clever bit to themselves.

Additional Information

What’s on offer:

• Direct involvement in shaping our AI practice rather than slotting into someone else's
• Exposure to senior stakeholders at recognisable clients from early on
• Work alongside a supportive team and across our global offices
• Continuous L&D opportunities, training and certifications
• A modern, flexible working environment
• Competitive salary and benefits
• The chance to make a real impact on how Data Intellect grows
• Healthcare cover - Benenden Health, including 24/7 GP & Mental Health Helpline.
• Generous referral scheme - we love to see referrals coming through and referring a friend means cash for you!
• Regular social events, prizes and giveaways-our talented social committee work hard all year round to provide exciting events across all regions and they’re open to suggestions.

A little background on DI

Simply put – we turn big data problems into smart data solutions

At our core, Data Intellect is a data and technology consultancy firm. Our key area of expertise is financial and capital markets technology solutions. However, the utility of these solutions allow us to apply fintech data expertise to other industries such as smart energy and healthcare.

This proprietary offering is complemented by a wealth of experience in data engineering, electronic trading systems, data capture applications, regulatory and compliance systems and middle and back-office enterprise web solutions.

Fair employment and equal opportunities

Data Intellect is an equal opportunity employer, committed to inclusion and diversity.

If you have a disability, accommodations are available on request throughout the assessment and selection processes.