MCS Group is proud to be working with an innovative, rapidly scaling technology organisation whose products are used globally across many industries in their search for a Principal Java Developer. The Principal Java Engineer will join an existing, scaling software engineering team to take on responsibility for the a specific function of their core software platform - in a fast-paced role which will encompass development, architecture and the mentoring and coaching of junior software engineers This is a fantastic opportunity for an experienced Principal Java Engineer to join a small, yet hugely successful team headed up an incredibly passionate Head of Engineering. You'll get the chance to work on a brilliant product and avail of great (fast-tracked) career growth potential in a business which has secured serious investment in the last 18 months to scale significantly in 2025 and beyond. The Role: The Principal Engineer will lead the design and architecture of complex, high-scale applications using Java and AWS. Yiu'll set engineering best practices and drive adoption of cloud-native solutions. You'll collaborate with cross-functional teams (interfacing with product and work closely with hardware engineering teams) to deliver robust, scalable, and secure systems. You'll provide technical mentorship and guidance to engineers, fostering a culture of innovation in this scaling business. You'll stay ahead of industry trends, seeking to continuously improve the tech stack and engineering processes. The Person Expertise in Java (latest versions), Spring Boot, and microservices architecture. Strong experience with AWS services (Lambda, ECS, DynamoDB, S3, etc.). Proven track record in designing distributed, scalable systems. Leadership experience in mentoring engineers and driving technical excellence. Strong problem-solving skills and a passion for modern software engineering. Salary Up to £85,000 with a competitive benefits package which includes 10% bonus and share options. To speak in absolute confidence about this opportunity, please send an up-to-date CV via the link provided or contact Chris Busby, Associate Director - IT Recruitment UK & Ireland, at MCS Group Even if this position is not right for you, we may have others that are. Please visit MCS Group to view a wide selection of our current and exclusive roles All conversations will be treated in the strictest of confidence. Skills: Java Developer Software Engineer Principal Lead Developer Software Developer Benefits: Work From Home