Principal Software Engineer

A global B2B SaaS tech company building out its European engineering hub and hiring Senior/ Principal Full Stack Software Engineers (JavaScript).
• Fully remote (Candidates have to be UK-based)• Senior / Lead IC role (no people management)• Building/enhancing a mission-critical SaaS platform used internationally• Strong end-to-end ownership (design → build → release)
Tech stack:• Frontend: React (JavaScript)• Backend: Node.js (JavaScript)• Cloud: AWS (Lambda, DynamoDB, CloudWatch)• Architecture: Microservices + REST APIs• Bonus: AG Grid / data-heavy UI
Requirements:• Strong React + Node experience• 7+ years engineering experience• Microservices/API background• Stable career history / strong communicator
Salary: £90k–£110k (depending on experience)
If you’re open to hearing more, please send through your up to date CV and we can arrange a time to discuss the role in more depth. Interviews due to be scheduled in the next week.
If not for you, however, know of someone that it could be a good fit for, I'd welcome the introduction.

Why This Role Is a Great Opportunity

Joining Thor as a Principal Software Engineer is not just about taking on a new job; it's about stepping into a role that offers significant career advancement and growth potential. As a global B2B SaaS tech company, Thor provides a dynamic environment where innovation and technical excellence are at the forefront. You'll have the chance to work on a mission-critical SaaS platform used by businesses worldwide, which means your contributions will have a tangible impact on the international stage.

With Thor's commitment to building out its European engineering hub, you'll be at the heart of cutting-edge projects, ensuring that you remain at the forefront of industry trends and technologies. This role offers a unique blend of responsibility and autonomy, as you take strong end-to-end ownership from design through to release. The experience you gain here will not only enhance your technical skills but also position you as a leader in the tech community.

Key Skills You Need to Succeed

• JavaScript Mastery: Given the role's focus on full-stack development, proficiency in JavaScript is essential for both frontend and backend tasks.
• React Expertise: As a key part of the frontend stack, strong knowledge of React will enable you to build responsive and intuitive user interfaces.
• Node.js Proficiency: Crucial for backend development, understanding Node.js ensures seamless server-side functionality.
• Cloud Experience with AWS: Familiarity with AWS services like Lambda and DynamoDB is necessary for deploying and managing scalable applications.
• Microservices Architecture: Knowledge of microservices is vital for designing systems that are modular, scalable, and maintainable.
• REST API Development: Experience with REST APIs is important for creating robust and reliable communication between services.
• Problem-Solving Skills: Critical for addressing complex technical challenges and optimizing system performance.

Tips to Get Hired for This Role

Landing the Principal Software Engineer position at Thor requires more than just technical skills. It's important to tailor your resume to highlight your experience with the key technologies mentioned, such as JavaScript, React, and AWS. Make sure to include specific examples of projects where you've demonstrated leadership and innovation.

During the interview process, be prepared to discuss your end-to-end project involvement, from design to deployment. Highlight your ability to work autonomously and take initiative in solving complex problems. Showing your enthusiasm for building and enhancing a mission-critical SaaS platform will set you apart from other candidates.

Finally, research Thor's company culture and values to demonstrate alignment during your interactions. This will show your genuine interest in contributing to their global engineering hub and your readiness to make a meaningful impact.