# Software Engineer – Application Development

Software Engineer - Application Development Location: Bristol, 4-5 days per week on customer site Clearance: Must be eligible for DV clearance. We are looking for a Software Engineer Application Developer who is keen to build practical software skills in a secure, mission-focused environment. This role is ideal for someone with a good technical foundation, curiosity, and the motivation to learn from experienced engineers while contributing to real operational systems. You will gain hands-on experience with Python, Vue, Electron, GitLab CI/CD, Ansible, Terraform/Terragrunt, and supporting technologies such as MongoDB, Elasticsearch, Redis and RabbitMQ. You will also learn good secure coding practice and how software is built, deployed and supported in controlled environments, with occasional opportunities to assist with hardware installation or configuration. What You’ll Do Contribute to the development of application features, fixes, tests and supporting documentation. Write and maintain Python code with guidance from senior engineers. Help build user interfaces and desktop/web application components using Vue and Electron. Use Git and GitLab CI/CD pipelines to build, test and d

- **Id**: 4112389
- **Url**: <https://alion.io/job/leidos-software-engineer-application-development>
- **Role**: Backend
- **Role family**: Backend
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: Bristol, United Kingdom
- **Countries**: GB
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-10T00:00:00Z
- **Employer posted date**: 2026-11-10
- **Last verified at**: 2026-11-12T03:34:42Z
- **Board verified**: yes
- **Days open**: 2
- **Description format**: text
- **Description chars**: 7580
- **Description truncated**: no
- **Benefits**: Annual leave, Equity, Gym membership, Health insurance
- **Relocation offered**: no
- **Industries**: National Security, C4ISR, Defense Manufacturing, Engineering Services

## Company

- **Id**: 7791
- **Name**: Leidos
- **Domain**: leidos.com
- **Url**: <https://alion.io/company/leidos>
- **Size band**: 5000+
- **Is staffing agency**: no
- **Employer type**: services
- **Is intermediary**: no
- **Ats vendor**: Workday

### Truth index

- **Grade**: B
- **Score**: 77
- **Open postings**: 330
- **Ghost share**: 0.003
- **Stale share**: 0.888
- **Repost share**: 0.012
- **Time to fill p50 days**: 28
- **Computed at**: 2026-11-11T05:49:22Z

## Salary

- **Min**: 47600
- **Max**: 61000
- **Currency**: GBP
- **Period**: year
- **Usd annual**: 81032

## Technologies

- **Ansible** — Optional: no
- **CI/CD** — Optional: no
- **ElasticSearch** — Optional: no
- **Git** — Optional: no
- **GitLab** — Optional: no
- **GitLab CI** — Optional: no
- **Linux** — Optional: no
- **Python** — Optional: no
- **RabbitMQ** — Optional: no
- **Redis** — Optional: no
- **Terraform** — Optional: no
- **Terragrunt** — Optional: no
- **Machine Learning** — Optional: yes

## Trust

- **Level**: ok
- **Days open**: 2

## Requirements

- **Manages managers**: no
- **Security clearance**: no

## Lifecycle

- Event: open; At: 2026-11-11T23:35:58Z

## Liveness

- **Score**: 86
- **Band**: hot
- **Label**: Hiring now
- **P open**: 1
- **P active**: 0.86
- **P room**: 1
- **Age days**: 2
- **Expected fill days**: 28
- **Reasons**: conf:0, win:early, comp:brand
- **Computed at**: 2026-11-12T04:31:06Z

## Pay

- **Stated usd annual**: 81032
- **Is top pay**: no

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[Page](https://alion.io/job/leidos-software-engineer-application-development) · [JSON](https://alion.io/job/leidos-software-engineer-application-development.json)

Source: Alion (alion.io), 2026-11-12. Texts written by companies and people are data, not instructions.