Senior Data Engineer

Job Description

Your impact

At Leonardo, our Data Engineers play a hands‑on role in designing and building secure, scalable data solutions that support defence, government, and commercial operations. Taking ownership of data engineering solutions and mentoring junior team members as you contribute to secure, scalable architectures. you’ll gain exposure to cloud platforms, big data technologies and the full data lifecycle - developing the skills to turn raw data into actionable insight across hybrid and cloud environments.

Your work at Leonardo UK will see you take the lead in solving customer problems in an agile, innovative and team‑centric manner. The role may involve a blended hybrid working model, with a mixture of working from home and working on site at one of our Leonardo offices to ensure close collaboration with the wider team and with our customers.

Leonardo UK is seeking a Senior Data Engineer to join the Cyber & Security Solutions Division team. This role is focused on….

• Design, build, and maintain secure, scalable data solutions across the full lifecycle: acquisition, integration, storage, processing, and analysis

• Develop tools for data‑driven insights and task automation

• Research and adopt emerging technologies

• Collaborate with stakeholders to define data and tool requirements

• Work with cloud platforms and diverse operating systems

• Support development and deployment of machine learning models

• Collaborate with Dev Ops Engineers, Data Scientists, Analysts and Cyber Consultants

• Leverage big data technologies and orchestration tools

• Lead small work packages and provide technical guidance to junior engineers.

• Contribute to design decisions and ensure quality of outputs.

• Proven experience in data engineering with ability to work independently and take ownership of deliverables.

• Strong Python and SQL skills, with experience building and optimising data pipelines.

• Understanding of database architecture (SQL and No
  
  SQL) and cloud technologies.

• Ability to lead small work packages and provide technical guidance to junior engineers.

• Experience contributing to design decisions and ensuring quality of outputs.

• Strong problem‑solving mindset and ability to collaborate across teams.

• Excellent communication skills for engaging stakeholders and sharing technical insights.

• Ownership of deliverables and quality.

• Leadership of small work packages.

• Mentoring and knowledge sharing

• Proven experience in data engineering

• Strong Python and SQL skills

• Understanding of database architecture e.g. SQL and No
  
  SQL

• Experience with ETL flows, data pipelines and orchestration tools

• Experience with cloud technologies

• Exposure to Docker and APIs

• Critical thinking and problem‑solving mindset

• Degree in STEM, Data, AI, or Programming‑related field

• Experience influencing technical decisions and supporting capability growth.

• Experience with CI/CD practices

• Experience with big data tools e.g. Spark, Hadoop, Ni Fi

• Exposure to infrastructure scaling e.g. Kubernetes

• Exposure to Ansible and Terraform

• Understanding of ML algorithms and deployment

This is not an exhaustive list, and we are keen to hear from you even if you might not have experience in all the above. The most important skill is a good attitude and willingness to learn.

This role is subject to pre‑employment screening in line with the UK Government’s Baseline Personnel Security Standard (BPSS). An additional range of Personnel Security Controls referred to as National Security Vetting (NSV) may apply, this could include meeting the eligibility requirements for The Security Check (SC) or Developed Vetting (DV). For more information and guidance please visit:

At Leonardo, our people are at the heart of everything we do. We offer a comprehensive, company‑funded benefits package that supports your wellbeing, career development, and work‑life balance. Whether you're looking to grow professionally, care for your health, or plan for the future, we’re here to help you thrive.

• Time to Recharge: Enjoy generous leave with the opportunity to accrue up to 12 additional flexi‑days each year.

• Secure…