Senior Fullstack Developer/Tech Lead with Java and React

Senior Full stack Developer / Tech Lead (Java & React)

Permanent Glasgow (Hybrid)

Join an innovative, fast-moving technology team building modern SaaS solutions that drive meaningful impact across complex business environments. As a Principal Engineer / Tech Lead, you'll work with cutting-edge technologies, collaborate across multidisciplinary teams, and contribute to the development of scalable, cloud-ready applications.

What You will do in the Principal / Teal Lead role

• Design, develop, and maintain robust, scalable backend services using Java, Spring, Hibernate, and related technologies.
• Define database structures, write efficient SQL queries, and ensure best-practice data management.
• Build complex, high-performing frontend applications using React and modern UI patterns.
• Integrate frontend and backend components through RESTful APIs, ensuring seamless interaction and performance.
• Conduct code reviews and uphold high standards for code quality, performance, and security.
• Use GitHub for version control and contribute to CI/CD pipelines supporting automated builds, testing, and deployments.
• Work with cloud and container technologies; AWS experience is a strong advantage.
• Leverage emerging AI technologies.
• Collaborate with cross-functional teams, including developers, product managers, and domain experts, to deliver high-quality software solutions.
• Participate in Agile ceremonies including sprint planning, stand-ups, and retrospectives.

What we require to progress candidates for the Principal / Tech Lead opportunity

• 7+ years of professional experience with Java and React, with a proven track record of delivering successful projects.
• Strong expertise in full-stack Web development, including object-oriented programming, design patterns, and data structures.
• Deep understanding of scalable system architecture and modern development best practices.
• Ability to solve complex problems with creativity, ownership, and critical thinking.
• Strong collaboration and communication skills with a proactive, positive approach.
• Ability to act as a technical leader in a fast-moving environment, (prior start-up / scale-up experience is highly desired)
• Ability to learn quickly and understand complex business requirements with minimal guidance.
• Bachelor’s degree in computer science, Engineering, or equivalent experience.
• Have practical experience or personal passions to engage further with AI experience of Anthropic / OpenAI is a strong plus

Why Join Us

• Work with passionate, mission-driven professionals focused on delivering meaningful, real-world impact.
• Joining a fast-moving start-up who are already shifting products and continuing to on-boarding new clients
• Build modern, cloud-based solutions using cutting-edge technologies across the stack.
• Thrive in a dynamic, innovative environment with significant opportunities for professional growth, leadership, and technical contribution.
• Contribute to products that empower businesses to drive measurable change and operate more responsibly.
• Strong salary depending on experience in the £65,000 - £75,000 range
• Equity and ownership options
• A growing benefits package
• Hybrid working in Glasgow City centre (typical 3 days a week in the office)

Keywords

Senior Developer, Full stack Developer, Tech Lead, Principal Engineer, Java Developer, Java, Spring, Spring Boot, Hibernate, React, React Developer, Frontend, Backend, Full-stack, AWS, Cloud, SQL, REST APIs, GitHub, CI/CD, Agile, Containers, AI Integration, OpenAI, Anthropic, Software Engineer, Scalable Systems, Hybrid, Glasgow