Full Stack Engineer (Python/React)
Location: Hybrid, London
Contract Type: 5 days a week, full-time
Start Date: ASAP

We're looking for a skilled Software Engineer to support a secure platform used for large-scale data processing and cyber analytics. This is an exciting contract opportunity to contribute to a mission-critical environment, working closely with engineering teams to develop and improve high-volume, high-velocity systems.

• Investigate and resolve system issues via proactive monitoring and dashboards
• Design and build critical applications for data analysis and querying
• Optimise system performance through code reviews and refactoring
• Develop new ways of visualising and querying large datasets
• Collaborate with cross-functional teams to support 1st line operations and maintain platform health
• Document support processes and provide technical guidance where needed

• Strong experience in Python 3 and PySpark
• Hands-on with Elasticsearch, including tuning and data discovery
• Proficient with distributed datasets (HDFS, CEPHFS)
• Frontend development with React, NextJS, MUI
• Familiarity with Scala for data insights and ad hoc queries
• Infrastructure tooling like Ansible and Puppet is a plus
• Background in networking, protocol analysis, or Ethernet stacks
• Strong debugging, Scripting, and software testing capabilities