Senior Systems Engineer - Laser-based systems Location: Oxfordshire £55k-£70k (dep on exp) A fantastic opportunity has arisen for an experienced Senior Systems Engineer to join a leading high-technology RandD organisation specialising in advanced bespoke laser based systems. This role is ideal for a commercially aware systems engineer with strong technical depth, who enjoys leading complex, multi-disciplinary projects from concept through to delivery. You will play a key role in the definition, design, integration, and validation of bespoke, high-precision laser systems used across cutting-edge industrial and research applications globally. You will be joining a highly skilled engineering team working with state-of-the-art laser technology in a company known for innovation and technical excellence. With continued growth and strong market demand, this is an excellent opportunity to take ownership of complex systems and make a real impact on product development and business success. The role Senior Systems Engineer Act as the technical bridge between engineering, sales, and customers Support commercial activities including technical proposals, system costing, and tender responses Lead system integration and validation, ensuring performance, reliability and compliance Capture and manage customer requirements, translating them into clear technical specifications Perform system modelling, trade-off analysis, and optimisation Troubleshoot complex system-level issues and drive roo