Principal Software Engineer
Principal Software Engineer

Principal Software Engineer

Plymouth Full-Time 120000 - 180000 Β£ / year (est.) No home office possible
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At a Glance

  • Tasks: Lead AI solution design, build prototypes, and advise high-level stakeholders.
  • Company: Dynamic AI consultancy focused on innovative solutions.
  • Benefits: Competitive salary, remote work, and opportunities for professional growth.
  • Why this job: Make a real impact in AI while collaborating with industry leaders.
  • Qualifications: 8+ years in software engineering with expertise in AI and customer engagement.
  • Other info: Mentor teams and shape the future of AI technology.

The predicted salary is between 120000 - 180000 Β£ per year.

Principal Software Engineer – Node / TypeScript

Β£130,000 – Β£150,000

100% Remote – UK / Europe

Tech stack: Node.js, TypeScript, Cloud, Distributed Systems, APIs, Async Processing

Immersum is supporting a bootstrapped CyberSecurity SaaS company specialising in vulnerability scanning as they look to hire a Principal Software Engineer. With a team of just six, they are building a security-focused cloud platform that helps organisations continuously reduce risk across their digital estate. Fully remote and engineering-led, the business prioritises clean architecture and long-term technical quality.

Who They're Looking For

A T-shaped engineer with deep Node.js and TypeScript expertise who enjoys owning complex systems, influencing technical direction, and staying hands-on.

The Role

β€’ Design and evolve backend services supporting APIs and asynchronous workflows

β€’ Own architecture decisions focused on scalability and reliability

β€’ Set high standards for code quality, testing, and observability

β€’ Address performance, reliability, and technical debt

β€’ Contribute to technical strategy while remaining hands-on

What You'll Bring

Strong production experience with Node.js and TypeScript

Background in distributed systems and event-driven architecture

Experience designing multi-consumer APIs

Solid understanding of cloud environments, data, and reliability

Clear communicator with principal-level impact

Why Join?

Mission-critical product with real engineering impact

Senior, low-ego team with high ownership

Fully remote, high-trust environment

Genuine influence over technical direction

Please note this role does not offer sponsorship.

Principal Software Engineer employer: Immersum

As a Principal Software Engineer at our AI consultancy, you will thrive in a dynamic remote work environment that champions innovation and collaboration. We offer competitive salaries, opportunities for professional growth through mentorship, and the chance to work directly with industry leaders on cutting-edge AI solutions. Our culture prioritises creativity and technical excellence, making it an ideal place for those looking to make a meaningful impact in the AI landscape.
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Contact Detail:

Immersum 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 AI and software engineering space. Attend meetups, webinars, or even online forums where you can chat with industry leaders. You never know who might have a lead on that perfect Principal Software Engineer role!

✨Tip Number 2

Show off your skills! Create a portfolio showcasing your AI projects, prototypes, and any cool stuff you've built. This is your chance to demonstrate your hands-on experience and technical prowess. Make sure to share it during interviews or on platforms like LinkedIn.

✨Tip Number 3

Prepare for those tricky interviews! Brush up on your knowledge of transformer architectures and GenAI tools. Be ready to discuss how you've tackled real-world challenges and what solutions you've implemented. Confidence is key when you're talking to CTOs and senior stakeholders.

✨Tip Number 4

Don't forget to apply through our website! We love seeing candidates who are genuinely interested in joining us. Tailor your application to highlight your customer-facing expertise and leadership skills, and let’s get you in for an interview!

We think you need these skills to ace Principal Software Engineer

Python
JavaScript
Azure
AWS
AI Solution Design
Prototyping
Full-Stack AI Systems Architecture
Transformer Architectures
Model Fine-Tuning
Prompt Engineering
GenAI Tools (ChatGPT, Claude, Copilot, Cursor)
Scalability and Maintainability Design
Customer Engagement
Technical Leadership
Mentoring

Some tips for your application 🫑

Tailor Your CV: Make sure your CV reflects the skills and experiences that match the Principal Software Engineer role. Highlight your experience with AI systems, customer-facing roles, and any leadership positions you've held. We want to see how you can bring value to our team!

Craft a Compelling Cover Letter: Your cover letter is your chance to shine! Use it to tell us why you're passionate about AI and how your background makes you the perfect fit for this role. Be sure to mention specific projects or achievements that demonstrate your expertise.

Showcase Your Technical Skills: Since this is a tech-heavy role, don’t shy away from detailing your proficiency in Python, JavaScript, Azure, and AWS. We love seeing examples of your work, so if you have any GitHub repos or projects, include them to give us a taste of your coding style!

Apply Through Our Website: We encourage you to apply directly through our website. It’s the best way for us to receive your application and ensures you’re considered for the role. Plus, it shows us you’re keen on joining the StudySmarter family!

How to prepare for a job interview at Immersum

✨Know Your Tech Inside Out

Make sure you’re well-versed in Python, JavaScript, Azure, and AWS. Brush up on your knowledge of transformer architectures and GenAI tools like ChatGPT and Claude. Being able to discuss these technologies confidently will show that you’re not just a leader but also a hands-on builder.

✨Prepare for Customer-Facing Scenarios

Since this role involves working with senior stakeholders, practice articulating complex technical concepts in a way that’s easy to understand. Think about past experiences where you’ve navigated challenging client environments and be ready to share those stories during the interview.

✨Showcase Your Leadership Skills

Be prepared to discuss your experience in leading engineering teams and making architectural decisions. Highlight specific projects where you’ve mentored others or contributed to internal capability building. This will demonstrate your ability to guide teams in fast-moving environments.

✨Demonstrate Problem-Solving Abilities

Think of examples where you’ve identified high-impact AI opportunities or solved complex problems using AI solutions. Be ready to walk through your thought process and the steps you took to arrive at a solution. This will showcase your strategic technical leadership and your ability to drive full-cycle AI delivery.

Principal Software Engineer
Immersum
Location: Plymouth

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