Principal Software Engineer

Prattwhitney; Manchester; Hybrid; GBP 60,000 - 80,000; Full time

Benefits offered by this job

Contributory Pension Scheme (up to 10.5% company contribution)

25 days holiday plus public holidays

Company bonus scheme

Private Medical Insurance

Flexible Benefits scheme

Enhanced sick pay

Enhanced family friendly policies

Job summary

Prattwhitney is seeking a Principal Software Engineer for a full-time position in Manchester with a hybrid working model. You will design and develop software solutions while mentoring junior team members within our cross-functional team.

The role requires full-stack experience with popular frameworks and proficiency in cloud services and automation tools. Benefits include a contributory pension scheme, enhanced family-friendly policies, and a flexible working culture.

Qualifications

• Full-stack experience with various JavaScript frameworks.
• Proficient in cloud services and container orchestration.
• Able to perform unit testing and automation.

Responsibilities

• Design and build software using industry best practices.
• Collaborate with stakeholders and other engineers.
• Contribute to the completion of project milestones.

Skills

Full-stack experience (React, NextJS, TypeScript, Python, Java REST API)

Cloud services (AWS or Azure)

Containerisation & Orchestration (Docker, Kubernetes)

Infrastructure as Code (Terraform, Ansible)

Relational Databases (PostgreSQL)

Elasticsearch / Opensearch

Unit testing / automation (Mocha, Jest, Cypress)

Job description

Date Posted: 2026-03-17 Country: United Kingdom Location: Manchester, Lancashire Position Role Type: Onsite

Raytheon UK have a full time, permanent opportunity for a Principal Software Engineer to join our team on our Manchester or Gloucester sites within a hybrid working pattern. As Principal Software Engineer, you have the opportunity to focus on technical work or have a mixture of technical focus and people management focus – guiding and developing our more junior members of the team. Either way, you will be part of our experienced software dev function, working in a cross‑functional team, delivering and deploying critical software across a variety of business areas.

Due to the interesting work we do and the sector this team is working in, we require all candidates to hold SC and be eligible & willing to obtain eDV clearance.

Responsibilities

• Design and build software using industry best practice
• Collaborate with stakeholders and other engineers
• Contribute to the completion of milestones associated with your project
• Contribute to continuous improvement within your team
• Collaborate with your peers on technical direction within your team

Required Skills and Experience

• Full‑stack experience across a selection of JavaScript frameworks (React, NextJS), TypeScript, Python, Java REST API development & OpenAPI / Swagger
• Cloud services (AWS or Azure)
• Containerisation & Orchestration (Docker, Kubernetes, OpenShift)
• Infrastructure as Code (Terraform, Ansible)
• Relational Databases (e.g. PostgreSQL)
• Elasticsearch / Opensearch
• Unit testing / automation and use of testing frameworks (e.g. Mocha, Jest, Cypress)

Benefits & Work Culture

Benefits:

• Contributory Pension Scheme (up to 10.5% company contribution)
• 6 times salary ‘Life Assurance’ with pension
• 25 days holiday (increasing with service) + statutory public holidays, plus opportunity to buy and sell up to 5 days
• Company bonus scheme (discretionary)
• Private Medical Insurance
• Flexible Benefits scheme with extensive salary sacrifice schemes, including Health Cashplan, Dental, and Cycle to Work amongst others
• Enhanced sick pay
• Enhanced family friendly policies including enhanced maternity, paternity & shared parental leave

Work Culture:

• 37hr working week
• Early 1.30pm finish Friday, start your weekend early!
• Up to 5 paid days volunteering each year
• Flexible working culture focused on output, with more formal flexible working arrangements on request (assessed subject to role) – please highlight any requests to the Talent Acquisition team.

Equal Employment Opportunity

RTX adheres to the principles of equal employment. All qualified applications will be given careful consideration without regard to ethnicity, color, religion, gender, sexual orientation or identity, national origin, age, disability, protected veteran status or any other characteristic protected by law.