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Senior Software Engineer - Cyber​/Defence DevSecOps

Job in Tewkesbury, Gloucestershire, GL20, England, UK
Listing for: Lockheed Martin
Full Time position
Listed on 2026-07-27
Job specializations:
  • Software Development
    Software Engineer, DevOps, Cloud Engineer - Software
Salary/Wage Range or Industry Benchmark: 59000 - 70000 GBP Yearly GBP 59000.00 70000.00 YEAR
Job Description & How to Apply Below
Position: Senior Software Engineer - Cyber/Defence DevSecOps (4-Day)

£59000 - £70000 p/a + BUPA, bonus and full benefits

4 Day Work Week Option

Lockheed Martin Rotary and Mission Systems (RMS) provides systems engineering, software development, training solutions and complex program management for global security, civil and commercial markets.

Simply stated, our mission is to be the world’s leading global security and aerospace company.

The role:

We have 5 exciting opportunities arising at our site in Gloucester for Software Engineers, primarily a variety of Defence, Cyber and Intelligence programmes.

These are Level 3 roles so you will need to demonstrate thorough proficiency in the skills we require.

At Lockheed Martin we’ll provide you with meaningful work and education opportunities that will allow you to develop your skills and enhance your career with us, but equally important you can also enjoy a strong work life balance.

We offer a 4 day work week pattern to ensure you get time to relax and live life outside of work!

To ensure this we offer a flexible work schedule, hybrid work and a comprehensive benefits package to enable you to live a healthy fulfilling life in and outside of work.

A range of specialisms exist in this essential and rewarding role.

You may specialise in just one area or operate across multiple Software Development disciplines with a specific focus on the Cyber domain.

Typically, you will be involved in one or more of the following:
  • Conducting software development activities under the direction of your Software Engineering Lead.
  • Design and development of tests to debug software.
  • Working with customer requirements that are to be programmed into business/mission applications, whilst utilising the appropriates standards, processes and tools throughout the entire development lifecycle.
  • Correction of program errors.
  • Preparation of operating instructions.
  • Documentation of program development.
  • Analysis of system capabilities to resolve questions of program intent, output requirements, input data acquisition, programming techniques, and controls.
  • Championing automation in the form of IaC, CI/CD and test automation.

As a Software Engineer, you’ll play a pivotal role in developing cutting edge Dev Sec Ops  software systems and applications.

You’ll be at the forefront of driving innovation and safeguarding digital infrastructures in the UK.

If you’re passionate about Software Engineering and eager to take your career to the next level, we want to hear from you!

If you’re passionate about software engineering and eager to take your career to the next level, we’d love to hear from you.

What skills will I need?
  • Experience of developing on Linux.
  • Thorough understanding of mocking and unit testing frameworks such as JUnit 5.x (Jupiter).
  • Experienced with Git version control.
  • Proficient in Agile Development using SCRUM.
  • Experience of Oracle/ Relational Databases and/or Mongo.
  • Experience of Git Lab CI/CD Pipelines.
  • Experience of Apache NiFi.
  • Experience in the use of Atlassian Suite - Bitbucket, Jira, Confluence.
  • Experience of Elasticsearch and Kibana.
  • Experience of Hibernate.
  • Experience of AWS Services such as EC2, EKS, Fargate, IAM, S3, Lambda.
  • Experience of CI/CD software pipelines for Cloud deployments.
Desired

Skills:
  • Experience of developing software for cloud deployment - specifically AWS.
  • Developing software for microservice and or serverless architectures.
  • Understanding the development challenges moving on-prem workload to cloud.
  • Experience of JSF (Primefaces).
We would love to hear from you if you have any of the following Qualifications or

Certifications:
  • AWS Certification.
  • ISTQB Certification.
  • OSCP Certification.
  • CCNA Certification.

These would be useful but aren’t strictly necessary to successful application.

Lockheed Martin is committed to upholding principles of equal opportunity, fostering a work environment that is aligned with our core values of integrity, respect, and exceptional performance.

We recognize the importance of leveraging the unique talents and experiences of all our employees to drive innovation, deliver superior solutions, and maximize value for our customers.

Our focus is on identifying the most qualified candidate for each role, regardless of their background.

Furthermore, Lockheed Martin is dedicated to ensuring our recruitment process is inclusive for all individuals.

We are prepared to accommodate reasonable adjustments for applicants as needed.

If you require assistance or adjustments to participate in the job application or interview process, please contact  or call

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Position Requirements
10+ Years work experience
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