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Gen AI Python Software Engineer

https://www.citi.com/ Logo

Citi

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Location:
United Kingdom , Belfast

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Contract Type:
Not provided

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Salary:

Not provided

Job Description:

Engineer the future of global finance. At Citi, our Tech team doesn’t just support finance – we are helping to redefine it. Every day, $5 trillion crosses through our network. We do business in 180+ countries operating at a scale few can match. From deploying advanced AI to helping shape global markets, we build systems that matter. Look to join a team where your work helps influence economies, your ideas can drive innovation and outcomes, and your growth is backed by mentorship, continuous learning and flexibility with potential hybrid work opportunities. Help solve real-world challenges that touch millions and get the opportunity to build the future of finance with Citi Tech. Help shape the next generation of AI-powered products in Markets Technology. Join a small, high-impact engineering team in Citi Markets Technology building greenfield Generative AI products that cut across asset classes and push beyond proof-of-concept into real production value. We are looking for AI-first engineers who are excited not just by using the latest LLMs, agents, and emerging design patterns, but by applying them with strong engineering discipline, sound judgement, and a relentless focus on quality. If you want to work on ambitious problems, shape solutions from the ground up, and help define how AI is engineered in one of the most interesting environments in finance, this is the role for you.

Job Responsibility:

  • Design, build, and evolve Generative AI solutions for Markets use cases across asset classes
  • Engineer production-quality applications and services using Python
  • Apply modern AI patterns including LLM orchestration, agentic workflows, retrieval-based approaches, and structured evaluation techniques
  • Contribute to system architecture, engineering standards, and technical direction
  • Write clean, maintainable, well-tested code with a strong focus on quality and long-term ownership
  • Collaborate closely with engineers, product partners, and business stakeholders to shape solutions with real impact
  • Use AI not only in the products we build, but also in the way we engineer - agentic development with Devin, CoPilot and more!
  • Bring initiative, curiosity, and original thinking to complex problems in a fast-moving space

Requirements:

  • Strong software engineering experience, with deep hands-on expertise in Python
  • Experience building scalable, production-grade systems rather than just prototypes
  • Practical experience with Generative AI, LLM-based applications, or agentic systems
  • A strong grasp of software engineering fundamentals, including design, testing, maintainability, and code quality
  • An appreciation for the craft of code
  • Ability to operate in ambiguity, take ownership, and move ideas forward
  • Engineers who think beyond tickets and requirements, and want to contribute to the overall shape of the solution
  • Strong communication skills and a collaborative mindset
What we offer:
  • 27 days annual leave (plus bank holidays)
  • A discretional annual performance related bonus
  • Private Medical Care & Life Insurance
  • Employee Assistance Program
  • Pension Plan
  • Paid Parental Leave
  • Special discounts for employees, family, and friends
  • Access to an array of learning and development resources

Additional Information:

Job Posted:
April 11, 2026

Employment Type:
Fulltime
Work Type:
Hybrid work
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