Job Title: Applications Engineer (Lab & Customer-Facing)Location: Sheffield, UK (On-site)Salary: Up to £85,000 (Depending on Experience)Industry: Semiconductors / IC DesignFunding: Series A (£9M Raised)About Us:KO2 are working with a fast-growing, venture-backed semiconductor company based in Sheffield, developing next-generation IC-based silicon solutions with exceptional early customer feedback. Following a successful £9 million Series A funding round, we’re scaling our team to meet global demand from customers across Asia, Europe, and North America.The Opportunity:KO2’s client are looking for a Junior & Senior Applications Engineer to join the team in Sheffield. This is a hands-on, hybrid role that combines technical lab-based work with customer interaction. You’ll be central to bridging engineering and customer support — investigating and responding to technical enquiries, running measurements and tests in the lab, and communicating your findings directly to customers.This is an ideal opportunity for someone with 2+ years of relevant industry experience or a technically strong individual looking to transition into a customer-facing role.What You’ll Do:Perform in-depth lab testing and measurements on our silicon productsAnalyze, document, and communicate findings to internal teams and external customersManage and respond to customer technical inquiriesRepresent the company at trade shows and industry eventsCollaborate with engineering and product teams to provide customer feedbackContribute to future planning of field applications support as we expand internationallyWhat We’re Looking For:A degree in Electronics, Physics, or a related engineering discipline2+ years' experience in a semiconductor or electronics-focused role (preferred)Strong hands-on lab skills and the ability to troubleshoot hardware issuesExcellent written and verbal communication skillsComfortable interfacing with customers and representing the business professionallySelf-motivated and willing to work on-site full time in SheffieldNice to Have:Prior experience in an applications engineering or customer-facing technical roleFamiliarity with international semiconductor markets or manufacturing partnersMandarin language skills (not required, but helpful due to customer base)Why Join Them?Be part of an ambitious startup with global growth plansWork closely with experienced engineers and foundersShape the direction of customer-facing engineering in a company with real momentumCompetitive salary and opportunity for career progression