Senior AI Engineer, Vice President

Citi · citibenefits.com

Belfast United Kingdom Full-time today
Workplace
On-site
Location
Belfast United Kingdom
Who can apply
Based in the United Kingdom: you usually need the right to work there

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About the role

We are seeking a highly motivated and experienced Senior AI Engineer to join and help lead an experienced team of software developers. You will take a senior, hands-on technical role in building a new, strategically important AI system that directly powers one of Citi's Global Lending Platforms. This is a great opportunity to build AI at real scale inside a leading global financial institution, shaping architecture and technical direction while mentoring engineers and partnering closely with senior stakeholders, in a culture that values craft, ownership, and continuous learning.

Responsibilities

* Design and implement software components and applications for AI systems, with a primary focus on data * Build MCP (Model Context Protocol) tools and AI agents that effectively utilize this data to solve business problems * Act as a senior, hands-on technical leader within a skilled SCRUM team — take ownership of complex, ambiguous problems, drive features from design through production, and ensure delivery of high-quality, production-grade applications * Thrive in a fast-paced, results-driven execution environment, balancing speed with engineering excellence, and proactively identify and resolve technical risks before they impact delivery * Lead code reviews, drive technical discussions, and help define shared engineering standards; mentor and coach junior and mid-level engineers to raise the overall capability of the team * Partner with product owners, architects, and senior stakeholders to translate business requirements into scalable, resilient technical solutions * Exercise sound judgment on architecture, design trade-offs, and technology choices, balancing short-term delivery needs with long-term platform health * Champion engineering rigor across the team, including testing, observability, security, and operational readiness for production AI systems

Skills & Qualifications

* Significant experience as a Software Engineer, with a track record of increasing scope, ownership, and technical leadership * Experience working in complex enterprise environments, collaborating with global teams * Experience applying large language models (LLMs) to solve real business problems, from ideation through to production deployment * Deep fluency in the Python AI/ML ecosystem, including Pydantic, REST API integration, database access, and orchestration frameworks such as ADK or LangGraph * Strong proficiency in SQL and working with complex data in enterprise environments * Demonstrated experience leading or mentoring engineers, influencing technical direction, and driving engineering standards within a team – big plus * A genuine team player who can also operate with full autonomy and ownership — equally effective in the office or working remotely * Sharp, structured thinker with strong analytical skills, sound judgment, and the ability to independently research, evaluate, and master new technical domains * Excellent interpersonal, communication, and stakeholder-management skills in English * Bachelor's degree in Computer Science or related field; advanced degree a plus

What's in It for You

* Take on a senior, high-visibility role working alongside experienced engineers while helping shape the growth of others * Work on a complex, high-stakes project deployed globally within a leading financial institution * Operate in a culture that actively encourages and sponsors personal and professional development * Build with cutting-edge AI tools — MCP, LLMs, agent frameworks — at real enterprise scale, with the latitude to influence architecture and technical direction * Flexible hybrid working model supporting both office collaboration and remote productivity

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Job Family Group:

Technology

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Job Family:

Applications Development

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Time Type:

Full time

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Most Relevant Skills

Please see the requirements listed above.

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Other Relevant Skills

For complementary skills, please see above and/or contact the recruiter.

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If you are a person with a disability and need a reasonable accommodation to use our search tools and/or apply for a career opportunity review Accessibility at Citi.

View Citi’s EEO Policy Statement and the Know Your Rights poster.

About Machine Learning Engineer jobs in the United Kingdom

Open jobs
340 open Machine Learning Engineer jobs in the United Kingdom, 38 of them posted in the last 7 days. See all Machine Learning Engineer jobs in the United Kingdom
Typical advertised pay
£98,000 – £240,000 a year for the middle half of the 25 job ads from 13 employers that state a salary in British pounds (median £155,000). This is base pay as advertised, not total compensation.
Skills the job ads ask for most
  • Python 81%
  • LLMs 69%
  • AWS 37%
  • RAG 35%
  • CI/CD 29%
  • PyTorch 29%

Share of the 474 newest postings for the role that name each skill. Resume keywords for Machine Learning Engineer jobs

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