Senior Software Engineer II

BehavioSec

BehavioSec

Software Engineering

London, UK

Posted on May 27, 2026

Do you enjoy coaching less experienced team members?

Would you like to join one of our innovative software teams?

About the Business

LexisNexis Risk Solutions provides customers with solutions and decision tools that combine public and industry specific content with advanced technology and analytics to assist them in evaluating and predicting risk and enhancing operational efficiency. We use the power of data and advanced analytics to help our customers make better, timelier decisions. By bringing clarity to information, we ultimately help make communities safer, commerce more transparent, business decisions easier and processes more efficient. You can learn more about LexisNexis Risk solutions at the link below, https://risk.lexisnexis.com/

Role Purpose
Build and deploy ML‑powered services, tools, and full‑stack applications supporting fraud and identity analytics. Work across backend services, model‑serving pipelines, and user interfaces.

Responsibilities:

  • Develop ML inference APIs, microservices, and data/feature pipelines.

  • Build full‑stack tools to support model evaluation and transparency.

  • Integrate ML models into real‑time production systems.

  • Implement automated training, monitoring, and evaluation workflows.

  • Use and contribute to AI‑assisted development tools.

  • Own DevOps and security standards for assigned services.

  • Collaborate with data scientists, architects, and QA

Requirements:

  • 4+ years software engineering (backend, full‑stack, or ML).

  • Strong Python and Java.

  • React + TypeScript experience.

  • Snowflake or similar data‑platform experience.

  • Familiarity with ML model serving and feature engineering.

  • Strong ownership and independent execution.

  • Working knowledge of DevOps and secure engineering

Preferred Experience

  • LLMs, embeddings, or vector databases.

  • Behavioural, graph, or anomaly detection models.

  • dbt, Snowpark, or Snowflake ML.

Working for you:

We offer a range of benefits to support your wellbeing and life outside work, including:

  • Generous holiday allowance with the option to buy additional days

  • Health screening, eye care vouchers and private medical benefits

  • Wellbeing programs

  • Life assurance

  • Access to a competitive contributory pension scheme

  • Save As You Earn share option scheme

  • Travel Season ticket loan

  • Electric Vehicle Scheme

  • Optional Dental Insurance

  • Maternity, paternity and shared parental leave

  • Employee Assistance Programme

  • Access to emergency care for both the elderly and children

  • RECARES days, giving you time to support the charities and causes that matter to you

  • Access to employee resource groups with dedicated time to volunteer

  • Access to extensive learning and development resources

  • Access to employee discounts scheme via Perks at Work

  • Learn more about the LexisNexis Risk team and how we work here





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