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GreySpark Partners

GreySpark Partners is a specialist consultancy that helps capital markets firms transform how they operate, compete and innovate. We combine deep industry expertise with hands-on delivery to solve complex business, technology and regulatory challenges for investment banks, asset and wealth managers, fintechs and other financial institutions, with a strong focus on front-office trading, electronic trading risk and governance.
 
GreySpark is building a new AI Engineering capability and is seeking an experienced software engineer with a keen interest in ing AI in production environments. This is an opportunity to work on high-impact engagements across financial services and technology sectors, helping clients identify where AI creates value, where it introduces risk, and how it can be deployed responsibly at scale.
 
As a Lead AI Engineer, you will build business applications using agentic AI and establish the engineering standards that make that work repeatable. You will ship production systems, spearhead a new AI-engineering practice, and help shape how GreySpark and its clients adopt AI technologies.
 
This is a senior position. You will write code. You will supervise the AI writing code. You will decide how the team writes code.
 
Responsibilities
 
Engineering
 
Build business applications using agentic AI. Design, build, and ship systems in which autonomous agents plan, invoke tools, and complete multi-step tasks against real business processes.
 
Build automated and AI-augmented data pipelines. Move data reliably at scale, and use AI to classify, extract, enrich, and validate it.
 
Technical leadership
 
Identify and maintain AI-engineering best practices. Own the standards for evaluation, testing, observability, prompt and agent design, and safe deployment across the team.
 
Train colleagues in AI-engineering disciplines. Raise the bar through code review, workshops, and direct mentoring.
 
Build a client community. Create and run the forums, briefings, and demos where clients share best practices and new ideas.
 
Advisory and expertise
 
Support the strategy team on due diligence engagements. Assess the technical substance behind a target’s AI claims.
 
Assess technology vendors’ AI maturity, opportunities, and risks. Translate findings into clear recommendations for non-technical decision-makers.
 
Skills & Experience
 
Essential
 
A strong software engineering background, with several years of experience building and running production systems. Java, TypeScript, and Python expertise is required.
 
Some experience building agentic AI applications. This includes work with large language models, tool use, retrieval-augmented generation, and agent orchestration frameworks.
 
Data engineering experience across pipeline orchestration, cloud data platforms, and the patterns that keep pipelines reliable.
 
The judgment to lead. You can set standards, review the work of others, and explain technical trade-offs to senior management.
 
Desirable
 
A record of evaluating and improving AI systems, not only prototyping them. You know how to measure quality and catch regressions before they reach production.
 
Consulting, due diligence, or client-facing advisory experience.
 
A track record of presenting to or running technical communities.
 
Familiarity with AI governance, security, and risk frameworks.
 
Qualifications
 
Minimum bachelor’s degree in computer science, mathematics, or related technical discipline
 
Relevant professional certifications are advantageous
 
What we offer
 
At GreySpark, you will have the opportunity to work across a diverse range of projects, industries and technologies, combining hands-on engineering with direct client engagement. We offer a highly collaborative environment, significant autonomy, and the chance to help shape a growing capability from an early stage. The role provides meaningful influence over both client outcomes and the future direction of the firm’s AI engineering practice.
 
In addition, we offer a competitive compensation package aligned to experience, along with a comprehensive benefits offering including pension, private medical insurance, dental cover, income protection, life assurance and generous holiday allowance.
 
To find out more about the role please contact our Talent Acquisition Team
 
Email: careers-uk@greyspark.com

Lead AI Engineer

Join GreySpark Partners and explore 1   exciting career opportunities. They're hiring for various roles with options for remote or on-site work. Apply today and become part of their innovative team.

GreySpark Partners

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Lead AI Engineer