RELX

Senior Software Engineer / Senior AI Engineer

RELX
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2 hours ago
London, United KingdomSenior

Responsibilities

  • Build prototypes, proofs of concept, and production-grade agentic AI solutions within a defined technical approach.
  • Implement and test tool use, retrieval pipelines, and agent workflows.
  • Contribute to evaluation, observability, guardrails, and outcome measurement for agentic systems.
  • Integrate AI capabilities into existing enterprise workflows and systems through APIs and data pipelines.
  • Maintain high-quality, reusable code and documentation, including patterns, reference implementations, and starter kits.
  • Identify technical risks and blockers early, complete moderately complex bug fixes, and collaborate with technical peers to finalize requirements.
  • Work with host-function stakeholders to ensure solutions fit real workflows and support handover and capability-building.
  • Keep current with technology developments and adapt to evolving squad needs.

Requirements

  • At least 3 years of software engineering experience with hands-on production experience building LLM-powered applications such as RAG, tool-augmented agents, or agentic workflows.
  • Bachelor of Science degree in Engineering or Computer Science, or equivalent experience.
  • Experience building RAG pipelines, tool-augmented agents, and agentic workflows, with familiarity in prompt engineering, context management, evaluation, and observability.
  • Understanding of agent memory, tools, retrieval, and multi-step task completion.
  • Experience integrating AI into existing systems through APIs and data pipelines.
  • Experience with AWS, Azure, or GCP.
  • Familiarity with modern software delivery practices, TDD, code review, and relevant AI SDKs.
  • Experience working with relational, columnar, and vector stores and sound data-modeling principles.
  • Proficiency in Python, Java, TypeScript or JavaScript, and SQL.
  • Ability to instrument solutions and measure usage, productivity, and quality against established baselines.
  • Clear written and verbal communication with technical peers and stakeholders, and comfort working autonomously in short, time-boxed delivery cycles.

Benefits

  • Comprehensive pension plan.
  • Generous vacation entitlement and the option for sabbatical leave.
  • Maternity, paternity, adoption, and family care leave.
  • Personal Choice budget, employee discounts, and recruitment introduction reward.
  • Employee Assistance Program and various employee communities and networks.
  • Shared parental leave, study assistance, wellbeing initiatives, and flexible working hours.
  • Country-specific benefits are available, and the employer supports workplace accommodations for applicants with disabilities or other needs.
RELX

About RELX

1,001-5,000 employees
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