Relx Group

Principal Software Engineer/Principal AI Engineer

Relx Group$115K — $192K *
Information Technology
8 - 10 years of experience
Job Overview by Ladders

Qualifications

  • 10+ years experience in software engineering with hands-on AI system design and integration.
  • BS in Engineering, Computer Science, or equivalent; advanced degree preferred.
  • Expertise in LLM orchestration, prompt engineering, and enterprise-scale AI tools.
  • Proven experience integrating AI into enterprise systems with a focus on security and data governance.
  • Familiarity with AWS, Azure, or GCP and managed AI/ML services.
  • Strong skills in Agile, CI/CD, modern SDLC, and TDD frameworks.
  • Proficiency in programming with Python, Java, TypeScript/JavaScript, SQL, and AI SDKs.

Responsibilities

  • Lead technical execution from discovery to production, including prototype assessment and new solution delivery.
  • Design and govern reusable agentic AI patterns across various functionalities.
  • Ensure compliant delivery that meets architecture and security standards; recommend infrastructure needs.
  • Document validated solutions as scalable patterns and reference implementations.
  • Collaborate with stakeholders to finalize requirements and provide design inputs.
  • Act as primary technical contact for external resources and mentoring team members.
  • Measure outcomes for initiatives and maintain visibility of AI pilots to enable reuse.

Benefits

  • Comprehensive Pension Plan
  • Generous vacation entitlement with sabbatical options
  • Maternity, Paternity, Adoption, and Family Care Leave
  • Personal Choice budget for individual needs
  • Access to internal communities and professional networks
  • Various employee discount programs
  • Global Employee Assistance Program
  • Flexible working hours to support work/life balance.
Full Job Description
Are you excited about building intelligent systems powered by innovative AI technologies?
Do you enjoy designing models that turn complex data into impactful solutions?


About the role:

As a Principal AI Engineer, you will be the technical lead for an embedded Innovation Squad, owning technical execution from discovery through to production. You will assess and harden existing AI prototypes, deliver new ones, and establish the agentic AI patterns, orchestration, tool use, memory, and retrieval that other squads reuse. You are the senior source of expertise on AI architecture, integration, and delivery.

You will work directly with internal stakeholders and end users in the host function, finalizing requirements, making the architectural calls, and codifying validated solutions into reusable patterns, reference implementations and starter kits. You may also provide sizing, infrastructure, and budget recommendations, and you will mentor and elevate the engineers around you.

Key Responsibilities:

  • Owning technical execution from discovery to production; build, assess, and harden prototypes and proofs of concept, and deliver new ones.
  • Designing and governing reusable agentic AI patterns (orchestration, tool use, memory, retrieval).
  • Ensuring delivery meets architecture, security and data-governance standards; recommend infrastructure, hosting and data residency.
  • Codifying validated solutions into patterns, reference implementations, and starter kits so they can be picked up and scaled across other functions.
  • Providing design input, finalizing requirements, and work directly with internal stakeholders and end users in the host function.
  • Writing specifications, fix complex bugs, and design complex data models.
  • Acting as the primary technical contact for external resources and the squad's go-to on coding and AI.
  • Establishing baselines and report measurable outcomes for every initiative.
  • Maintaining visibility of in-flight AI pilots within the function to prevent duplication and surface candidates for reuse.
  • Ensure alignment with enterprise non-negotiables: security, compliance and central technology infrastructure standards.
  • Continuously evaluate emerging technologies and mentor and elevate team members.


Requirements:

  • Engineering experience: 10+ years in software engineering, with hands-on AI system design, build, or integration, and a track record of taking AI prototypes to production in enterprise environments.
  • Education: BS in Engineering, Computer Science, or equivalent; advanced degree preferred.
  • Agentic AI / LLMs: LLM orchestration, prompt engineering, context-window management and production guardrails; MCP, tool-augmented agents and RAG at enterprise scale.
  • Enterprise integration: Integrating AI into enterprise systems via APIs and data pipelines, with strong security, data governance and residency practices.
  • Cloud: AWS, Azure, or GCP, including managed AI/ML services.
  • Delivery: Agile, CI/CD, modern SDLC, and TDD.
  • Data and architecture: Modelling across relational, columnar and vector stores, grounded in sound architectural principles.
  • Ways of working: Thrives in ambiguity, framing the problem, extracting defined spec, and prioritises shipping validated outcomes over perfect solutions, moving pilots to production at pace.
  • Languages: Python, Java, TypeScript/JavaScript, SQL, and relevant AI SDKs.
  • Leadership and delivery management: Plans and sequences work, manages scope, dependencies and priorities, removes blockers, and drives delivery to keep innovation moving.
  • Communication and influence: Presents concisely to senior management, host-function stakeholders, and cross-functional teams, and builds buy-in and drives technical decisions across.
  • Commercial awareness: Budget-aware; partners with internal and external resources, including managed services and staff augmentation.
  • Measurement: Establishes baselines and instruments solutions to track productivity, cost, and quality outcomes from pilot through scale.


Why Join Us?

Join our team and contribute to a culture of innovation, collaboration, and excellence. If you are ready to advance your career and make a significant impact, we encourage you to apply.

Work in a way that works for you

We promote a healthy work/life balance across the organization. We offer an appealing working prospect for our people. With numerous wellbeing initiatives, shared parental leave, study assistance and sabbaticals, we will help you meet your immediate responsibilities and your long-term goals.
  • Working flexible hours - flexing the times when you work in the day to help you fit everything in and work when you are the most productive.


Working for you

We know that your well-being and happiness are key to a long and successful career. These are some of the benefits we are delighted to offer:

  • Comprehensive Pension Plan
  • Generous vacation entitlement and option for sabbatical leave
  • Maternity, Paternity, Adoption, and Family Care Leave
  • Personal Choice budget
  • Internal communities and networks
  • Various employee discounts
  • Recruitment introduction reward
  • Employee Assistance Program (global)


U.S. National Base Pay Range: $115,400 - $192,300. Geographic differentials may apply in some locations to better reflect local market rates.This job is eligible for an annual incentive bonus.
We know your well-being and happiness are key to a long and successful career. We are delighted to offer country specific benefits. Click here to access benefits specific to your location.

About Relx Group

RELX Group is a global provider of information-based analytics and decision tools for professional and business customers. The company operates in four market segments: scientific, technical and medical; risk and business analytics; legal; and exhibitions. RELX's products and services include electronic databases, online information services, workflow tools, and print and digital books. The company was founded in 1993 and is headquartered in London, England.
Learn more about Relx Group
Size
33,500 employees
Market Cap
$53.1 billion
Industry
Net Income
$1.2 billion
Founded
2018
5 Year Trend
+1%
Revenue
$7.1 billion
NASDAQ

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