Principal Software Engineer

Principal Software Engineer

London Full-Time 43200 - 72000 £ / year (est.) Home office possible
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At a Glance

  • Tasks: Lead and mentor teams while shaping the technical vision for a global payments platform.
  • Company: Join a leading Global Payments Technology company with a focus on innovation.
  • Benefits: Enjoy fully remote work, flexible arrangements, and competitive salary with benefits.
  • Why this job: Combine hands-on coding with strategic influence in a fast-growing tech environment.
  • Qualifications: 10+ years in enterprise architecture, strong .NET and SaaS experience required.
  • Other info: Great career progression opportunities in a dynamic international business.

The predicted salary is between 43200 - 72000 £ per year.

Principal Software Engineer

Fully Remote | Permanent | Competitive Salary + Benefits

Harrington Starr has partnered with a leading Global Payments Technology company who are seeking to hire a Principal Software Engineer to join their senior engineering leadership team. This is a rare opportunity to combine hands-on development with strategic influence, guiding architecture decisions and shaping the technical vision for a global, real-time payments platform.

Key responsibilities:

  • Define and maintain the company’s technical and architectural direction.
  • Provide leadership and mentorship across multiple engineering teams.
  • Drive enterprise-level design decisions, ensuring scalability and resilience.
  • Contribute directly to coding activities in support of key deliverables.
  • Monitor emerging technologies, influencing long-term strategic decisions.

Benefits of the role:

  • Fully remote working with flexible arrangements.
  • Senior leadership role with influence over enterprise-wide architecture.
  • Opportunity to balance hands-on coding with strategic direction.
  • Work on complex, high-performance systems at global scale.
  • Career progression in a fast-growing international technology business.

Key skills required:

  • 10+ years’ experience in enterprise architecture and software engineering.
  • Proven expertise in .NET with strong SaaS and API platform experience.
  • Hands-on track record designing highly scalable, high-performance systems.
  • Strong leadership, mentoring, and stakeholder management skills.

For any additional questions, please contact me via LinkedIn or through email – ollie.bluck@harringtonstarr.com.

If you feel this role is the right one for you, please apply below!

Principal Software Engineer employer: Harrington Starr

As a Principal Software Engineer at our leading Global Payments Technology company, you will enjoy the flexibility of fully remote working while being part of a dynamic and innovative team. We foster a collaborative work culture that prioritises employee growth, offering you the chance to influence enterprise-wide architecture and mentor fellow engineers, all while working on complex, high-performance systems that make a global impact.
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Contact Detail:

Harrington Starr Recruiting Team

StudySmarter Expert Advice 🤫

We think this is how you could land Principal Software Engineer

✨Tip Number 1

Network like a pro! Reach out to your connections in the tech industry, especially those who work at companies you're interested in. A friendly chat can lead to insider info and even referrals that could get your foot in the door.

✨Tip Number 2

Show off your skills! Create a portfolio or GitHub profile showcasing your best projects, especially those related to scalable systems and enterprise architecture. This gives potential employers a taste of what you can bring to the table.

✨Tip Number 3

Prepare for interviews by brushing up on both technical and leadership questions. As a Principal Software Engineer, you'll need to demonstrate not just your coding chops but also your ability to mentor and influence teams.

✨Tip Number 4

Don't forget to apply through our website! It’s the best way to ensure your application gets seen by the right people. Plus, it shows you're serious about joining the team!

We think you need these skills to ace Principal Software Engineer

Enterprise Architecture
Software Engineering
.NET
SaaS
API Development
Scalable System Design
High-Performance Systems
Leadership Skills
Mentoring Skills
Stakeholder Management
Strategic Influence
Hands-on Development
Technical Vision

Some tips for your application 🫡

Tailor Your CV: Make sure your CV reflects the skills and experiences that match the job description. Highlight your 10+ years in enterprise architecture and software engineering, especially your .NET expertise and SaaS experience.

Craft a Compelling Cover Letter: Use your cover letter to tell us why you're the perfect fit for this Principal Software Engineer role. Share specific examples of how you've driven design decisions and mentored teams in the past.

Showcase Your Leadership Skills: Since this is a senior leadership role, emphasise your leadership and mentoring experiences. We want to see how you've influenced architectural direction and guided teams towards success.

Apply Through Our Website: Don't forget to apply through our website! It’s the best way for us to receive your application and ensures you’re considered for this exciting opportunity in our global payments technology team.

How to prepare for a job interview at Harrington Starr

✨Know Your Tech Inside Out

As a Principal Software Engineer, you'll need to demonstrate your deep understanding of enterprise architecture and software engineering. Brush up on your .NET expertise and be ready to discuss your experience with SaaS and API platforms. Prepare specific examples of how you've designed scalable systems in the past.

✨Showcase Your Leadership Skills

This role involves mentoring and leading multiple engineering teams, so be prepared to share your leadership experiences. Think of instances where you've guided teams through complex projects or made strategic architectural decisions. Highlight your ability to influence and inspire others.

✨Be Ready for Technical Challenges

Expect to face technical questions that assess your problem-solving skills. Practice coding challenges relevant to high-performance systems and be ready to explain your thought process. This will show your hands-on capability while also demonstrating your strategic thinking.

✨Stay Updated on Emerging Technologies

The company is looking for someone who can monitor and influence long-term strategic decisions based on new technologies. Research current trends in payments technology and be prepared to discuss how they could impact the company's architecture. This shows your proactive approach and passion for the field.

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