Principal software engineer Work, Jobs in Faringdon, Oxf (with Salaries)

Principal Software Engineer
Rocket Software —Newbury
- Full-time
- Remote
- Azure
- AWS
- C++
Principal Software Engineer - Python
Procode Technology Limited —Oxford
- £65,000 a year
- Hybrid work
- Azure
- AWS
- APIs
- Annual leave
- Employee assistance programme
Senior Software QA Engineer - Rock Physics Applications
Halliburton —Abingdon
- Full-time
- Engineering
- Bachelor's degree
- Software development
Senior Software Engineer - Rock Physics Applications
Halliburton —Abingdon
- Full-time
- Azure
- Computer Science
- Engineering
Software Engineer - Rock Physics Applications
Halliburton —Abingdon
- Full-time
- Azure
- Computer Science
- Engineering
QA Automation Engineer
RM Education Limited —Abingdon
- Hybrid work
- Contracts
- APIs
- Agile
- Annual leave
Principal / Senior Mechanical Design Engineer
SKD SE —Swindon
- Full-time
- Communication skills
Principal Electronics Engineer
Oxford Nanopore Technologies —Oxford
- Full-time
- Engineering
Principal Cloud Engineer
Oxford Nanopore Technologies —Oxford
- Full-time
- AWS
- Computer networking
- Organisational skills
Senior/Principal R&D Electronics Engineer
Siemens Healthineers —Oxford
- Full-time
- Hybrid work
- Mentoring
- Communication skills
- Annual leave
4d
Principal Radiotherapy Physicist
Oxford University Hospitals NHS Foundation Trust —Headington
- £57,528 - £64,750 a year
- Full-time
11d
Senior Project Manager
Rehlko —Oxford
- Full-time
- Project management
- Travel
- Organisational skills
- Employee assistance programme
Apprentice Electronics Test Technician
EnSilica —Abingdon
- £25,000 - £26,000 a year
- Full-time
- Time management
- Annual leave
Engineering Manager (Experiences)
Tripadvisor —Oxford
- Analysis skills
- Mentoring
- Software development
- Employee assistance programme
- Employee discount
Quick apply
6d
Principal Civil Engineer
AFRY —Oxford
- Full-time
- Hybrid work
- AutoCAD
- CAD
- Engineering
- Flexible schedule
Quick apply
Senior Mechanical/Product Engineer
Oxford Flow —Witney
- Full-time
- Hybrid work
- Engineering
- Presentation skills
- Communication skills
- Work from home
Lead Machine Learning Engineer
AIOI NISSAY DOWA INSURANCE MANAGEMENT LIMITED (ANDIM) —Oxford
- Full-time
- Doctoral degree
- Computer Science
- Maintenance
- Annual leave
- Employee assistance programme
3d
Principal Electrical Design Engineer (Data Centres) - Bicester
Tractebel —Oxford
- Full-time
- Hybrid work
- Microsoft Word
- Microsoft Excel
- Engineering
- Annual leave
Principal Electrical Design Engineer (Data Centres) - Bicester
ENGIE —Oxford
- Hybrid work
- Microsoft Word
- Microsoft Excel
- Engineering
- Annual leave
Senior Electronics Design Engineer
OrganOx —Oxford
- Full-time
- Engineering
- Laboratory experience
- Master's degree
Quick apply

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Principal Software Engineer

Rocket Software -
Newbury

Apply Now

Job details

Full-time

Qualifications

Azure
AWS
C++
C
Distributed systems
COBOL
Scrum
Software development
Leadership
Debugging

Full job description

It's fun to work in a company where people truly BELIEVE in what they're doing!

Job Description Summary:

The Infrastructure Modernization business unit is seeking a highly experienced Principal Software Engineer to join our engineering organization and provide deep technical leadership across our COBOL development ecosystem and our Enterprise Server application replatforming products. This is a hands-on, strategic role focused on designing, building, and evolving mission‑critical infrastructure used by global enterprises running high‑volume, high‑reliability systems.

In this role, you will influence architecture across multiple product lines, guide engineering best practices, and help define the future of our platform as customers modernize decades‑old workloads into more agile, distributed and environments. You will partner closely with senior engineering leaders, product managers, and domain experts to drive innovation at scale.

What You’ll Do

Technical Leadership

Architect, design, and implement core components within our COBOL development tools, runtime environments, and mainframe replatforming infrastructure.
Provide technical direction across multiple engineering teams building compilers, runtimes, middleware, and large-scale distributed systems.
Drive modernization strategies for legacy application ecosystems, including cloud migration, workload transformation, and hybrid deployment scenarios.

Hands-On Engineering

Own complex technical domains end-to-end, from design through production, balancing long‑term architecture with immediate product needs.
Build highly reliable, scalable, and secure infrastructure software used in mission‑critical enterprise environments.
Conduct deep code reviews, troubleshoot production issues, and mentor engineers in system-level design and performance optimization.

Cross-Functional Impact

Collaborate with product management to shape roadmap priorities and translate customer challenges into technical solutions.
Work with System Test, DevOps, and release engineering to ensure high-quality, low‑risk releases across a diverse product portfolio.
Introduce and champion engineering excellence practices, including automated testing, performance benchmarking, observability, and maintainability.

What We’re Looking For

Required Experience

10+ years of professional software engineering experience, including leadership over complex, multi‑team technical initiatives.
Deep expertise in systems-level software development , such as compilers, runtimes, operating systems, or infrastructure‑level platforms.
Strong background in mission-critical, high‑availability software (e.g., financial services, telecom, government, or core enterprise platforms).
Demonstrated experience with COBOL, PL/I, C, or C++ —or significant experience in other lower-level languages with a willingness to dive into COBOL domain internals.
Proven track record building or modernizing enterprise-grade tooling, middleware, or distributed systems .
Ability to decompose legacy architectures, assess modernization paths, and design scalable solutions.

Preferred Qualifications

Experience with mainframe-to-cloud migration, workload replatforming, or runtime compatibility layers.
Familiarity with Azure, AWS, or hybrid cloud architectures.
Understanding of static and dynamic language runtimes, compiler pipelines, and virtual machine internals.
Prior technical mentorship or architectural leadership spanning multiple scrum teams.
Strong diagnostic skills for debugging low-level performance, memory, concurrency, or runtime issues.

Who You Are

A pragmatic engineer who balances ideal architecture with real-world constraints.
Passionate about long-term maintainability and operational excellence.
Comfortable working with legacy systems and excited about evolving them for the future.
A collaborator who elevates teams through mentorship and cross-functional alignment.
Someone who thrives in a technically rich, complex domain where your expertise has large-scale impact.

Why Join Us?

Influence the future of mission‑critical modernization technologies used worldwide.
Work with a highly experienced engineering organization with deep domain expertise.
Opportunity to shape architecture and product direction across multiple major portfolios.
A culture that values technical depth, thoughtful engineering, and long-term product stewardship.

#LI-Remote

Rocket Software Inc. is committed to creating a diverse environment and is proud to be an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, sexual orientation, national origin, genetics, disability, age, or veteran status. Rocket Software Inc. is also committed to compliance with all fair employment practices regarding citizenship and immigration status.

As part of our commitment to a safe and trustworthy workplace, we include background and reference checks in our hiring process.

Rocket is committed to working with and providing reasonable accommodation to individuals with physical and mental disabilities. If you need special assistance or an accommodation while seeking employment, please call: 781-577-4321 or send an email to [email protected]. We will make a determination on your request for reasonable accommodation on a case-by-case basis.

If you like wild growth and working with happy, enthusiastic over-achievers, you'll enjoy your career with us!

Apply Now

Refine Your Search

principal software engineer jobs in faringdon, oxf

Principal Software Engineer

Principal Software Engineer - Python

Senior Software QA Engineer - Rock Physics Applications

Senior Software Engineer - Rock Physics Applications

Software Engineer - Rock Physics Applications

QA Automation Engineer

Principal / Senior Mechanical Design Engineer

Principal Electronics Engineer

Principal Cloud Engineer

Senior/Principal R&D Electronics Engineer

Principal Radiotherapy Physicist

Senior Project Manager

Apprentice Electronics Test Technician

Engineering Manager (Experiences)

Principal Civil Engineer

Senior Mechanical/Product Engineer

Lead Machine Learning Engineer

Principal Electrical Design Engineer (Data Centres) - Bicester

Principal Electrical Design Engineer (Data Centres) - Bicester

Senior Electronics Design Engineer

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What You’ll Do

Technical Leadership

Hands-On Engineering

Cross-Functional Impact

What We’re Looking For

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Preferred Qualifications

Who You Are

Why Join Us?

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