Principal software engineer Work, Jobs in Old Windsor, Brk (with Salaries)

Principal Software Engineer
CV Library —Fleet
- £1 - £999,999 a year
- Full-time
- Hybrid work
- System design
- APIs
- Communication skills
Quick apply
Principal Software Engineer
Northrop Grumman —London
- £80,200 - £120,400 a year
- DevOps
- Java
- AWS
- Relocation assistance
Principal Software Engineer
Durlston Partners —London
- £150,000 - £260,000 a year
- Computer Science
- Java
- C++
Principal Software Engineer
Ultra Electronics —Maidenhead
- Full-time
- Engineering
- Master's degree
- C++
- Flexible schedule
Principal Software Engineer
JPMorganChase —London
- Full-time
- System design
- AWS
- Product management
2d
Principal Software Engineer- Data Platforms
IDBS —Woking
- Full-time
- AWS
- AI
Principal Software Engineer (AI)
IDBS —Woking
- Full-time
- Master's degree
- AWS
- APIs
- Annual leave
Principal Engineer
Tiro Partners —Staines-upon-Thames
- Up to £100,000 a year
- Azure
- Computer Science
- SQL
Principal Product Designer
Epicor —Bracknell
- Full-time
- IT
- AI
Principal Software Engineer
BAE Systems —New Malden
- Up to £65,500 a year
- Hybrid work
- Mentoring
- Software development
Principal Systems Engineer
Medtronic —London
- £64,400 - £96,600 a year
- Full-time
- Engineering
- Bachelor's degree
- Travel
Principal Software Engineer
Codurance —London
- £100,000 - £125,000 a year
- Full-time
- Hybrid work
- Travel
- IT
- AI
- Employee assistance programme
Quick apply
Principal Mechanical Engineer
BAE Systems Inc. —Westminster
- £118,095 - £200,762 a year
- Full-time
- Remote
- Doctoral degree
- CAD
- Engineering
- Annual leave
- Employee assistance programme
11d
Principal Test Automation Engineer
IDBS —Woking
- Full-time
- APIs
Principal Software Engineer
Autodesk —London
- Full-time
- Computer Science
- DevOps
- Master's degree
6d
Principal Engineer (Python)
Durlston Partners —London
- £180,000 - £350,000 a year
- Python
Principal Software Engineer
RELX —Richmond
- Full-time
- Computer Science
- DevOps
- Master's degree
Principal Software Engineer
RX —Richmond
- Full-time
- Computer Science
- DevOps
- Master's degree
Principal Software Engineer
PerkinElmer —High Wycombe
- Azure
- Computer Science
- Schematics
Principal Software Engineer
Omnea —London
- £145,000 - £185,000 a year
- Full-time
- Hybrid work
- DevOps
- Java
- AWS

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Principal Software Engineer

CV Library -
Fleet

Quick apply

Job details

Full-time
£1 - £999,999 a year

Qualifications

System design
APIs
Communication skills

Full job description

At CV-Library, we have a simple vision: to help the world to work and we are looking for exceptional and talented people to help us realise this vision in both UK and overseas markets.

We are in a period of focused internal investment, following a year of key strategic acquisitions and significant investment across all parts of the business, from Tech and Data to People and HR, there’s never been a more exciting time to join us or a better place to grow your career!

The Role

Hours: Monday-Friday, 9:00-17:30
Location: Fleet
Working Pattern: Hybrid – twice a quarter

We are looking for a Principal Software Engineer to provide technical leadership across multiple domains, including mobile applications and backend/server systems.

This role is centred on driving alignment across teams and systems – owning how services and applications interact, ensuring consistency in interface design, and coordinating implementation approaches across Product, Architecture and Engineering.

You will play a key role in shaping how our platform evolves, helping teams deliver independently while maintaining a cohesive and scalable system.

This is a highly collaborative role requiring strong communication, influence and the ability to build consensus across a diverse engineering organisation.

Responsibilities:

Own and evolve the interface specification lifecycle, including definition, documentation and governance
Act as a bridge between mobile, backend and platform teams, ensuring alignment in how systems interact
Coordinate implementation strategies across teams, working closely with Architecture, Product and Engineering
Maintain a strategic technical view across domains, identifying opportunities for simplification, reuse and consistency
Drive clarity in system boundaries, contracts and integration patterns
Facilitate cross-team technical discussions, building alignment and resolving ambiguity
Support teams in translating architectural direction into practical, deliverable approaches
Identify and manage cross-cutting technical risks and dependencies
Champion best practices in API and interface design, focusing on usability, scalability and maintainability
Contribute to target architecture planning, including platform convergence and legacy system evolution
Mentor engineers and technical leaders, particularly in systems thinking and cross-domain design
Ensure high-quality, accessible technical documentation
Contribute hands-on to implementation when needed, particularly to unblock teams, accelerate critical delivery, or de-risk complex changes
Lead by example through pragmatic technical contribution, balancing strategic oversight with selective execution

What we’re looking for

Strong experience as a senior or lead engineer, with demonstrated impact beyond a single team
Proven ability to work across team boundaries, influencing technical direction and driving alignment
Experience designing and working with well-defined interfaces and APIs
Strong understanding of software architecture concepts and system design principles
Excellent communication and consensus-building skills, with the ability to bring diverse stakeholders together
Ability to navigate ambiguity and provide clarity in complex technical landscapes
A systems-thinking mindset, with an interest in how different parts of a platform interact and evolve
Experience supporting delivery through collaboration rather than direct ownership
Commitment to high standards in documentation, clarity and engineering quality
Strong hands-on engineering capability, with the ability to contribute effectively to production code when required
Ability to context-switch between strategic thinking and practical implementation, depending on organisational needs

We are actively committed to promoting a fully diverse and inclusive workforce and we welcome applications for this role from all candidates who meet the key requirements.

Please do not hesitate to get in touch should you require any reasonable adjustments to assist with your application.

Quick apply

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