{"id":799838,"url":"https://alion.io/job/filtronic-senior-mmic-design-engineer","title":"Senior MMIC Design Engineer","company":{"id":673909,"name":"Filtronic","domain":"filtronic.com","url":"https://alion.io/company/filtronic","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workable","truth_index":{"grade":"B","score":81,"open_postings":4,"ghost_share":0,"stale_share":0.75,"repost_share":0,"time_to_fill_p50_days":28,"computed_at":"2026-11-08T05:47:12Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Sedgefield, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":60000,"max_usd":94000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":145},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-07-19T00:00:00Z","employer_posted_date":"2026-07-19","last_verified_at":"2026-11-08T22:06:46Z","board_verified":true,"closed_at":null,"days_open":113,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":112},"description":"Filtronic is growing.\nWe support some of the world's leading companies within the space and defence sectors, and now looking for an experienced Senior MMIC Design Engineer to join our expanding engineering team at our state-of-the-art headquarters in NETPark, Sedgefield, County Durham, UK.\nThis is an opportunity to work at the forefront of microwave and millimetre-wave technology, designing world-class MMIC solutions operating from 37GHz to 115GHz and beyond for next-generation communication and defence systems.\nThe Role\nWorking alongside our highly experienced RF, microwave, electronics and systems engineers, you'll take ownership of the design and development of high-performance MMICs, helping bring innovative products from concept through to production.\nYou'll be involved in challenging projects where performance, reliability and manufacturability are critical, whilst having the opportunity to influence technology direction and mentor other engineers.\nWhat You'll Be Doing\n Design and layout advanced MMICs using technologies including GaAs, GaN and InP \n Develop high-performance: \n Low Noise Amplifiers (LNAs) \n Power Amplifiers (PAs) \n Gain Blocks \n Up & Down Converters \n Variable Attenuators \n Frequency Multipliers \n Select appropriate semiconductor process technologies for new designs \n Carry out circuit simulation, optimisation and design verification \n Produce complete design documentation and support fabrication release \n Work closely with semiconductor foundries throughout development \n Perform thermal analysis, reliability (MTBF) assessments and validation testing \n Develop test specifications and characterise devices using our state-of-the-art RF laboratories \n Participate in and lead technical design reviews \n Collaborate across multidisciplinary engineering teams to deliver products on time and to specification. \nRequirements\nWe're looking for an engineer with significant commercial experience in MMIC design who enjoys solving complex technical challenges and developing innovative RF solutions.\nYou'll ideally have:\n Degree, Masters or PhD in Electronic Engineering, RF Engineering, Microwave Engineering or equivalent commercial experience\n Significant industrial experience designing MMICs within the semiconductor industry \n Strong experience designing RF amplifiers, LNAs and frequency conversion circuits using GaAs and/or GaN MMIC HEMT technologies \n Excellent hands-on RF measurement and device characterisation skills using probe stations and RF test equipment \n Experience taking designs from concept through fabrication and verification \n Strong understanding of RF/microwave communication systems \nDesirable experience includes:\n Knowledge of WIN Semiconductor PP10-1x process technology \n Experience of millimetre-wave products operating above 37GHz \n Previous mentoring or technical leadership experience. \nAbout Filtronic\nFiltronic is an award-winning designer and manufacturer of advanced RF, microwave and mmWave solutions for the Space, Aerospace, Defence and Telecommunications markets. Our technology enables some of the world's most demanding communications systems, and we're continuing to invest in our people, products and facilities as we grow.\nIf you're looking for the opportunity to work on genuinely cutting-edge RF technology within a collaborative engineering environment, we'd love to hear from you.\nBenefits\nPlease call our Talent Partner, Bruce Mair on 07483 917543 if you would like to chat about this role or clarify the salary prior to investing your time applying.\nBenefits include:\nCompetitive salary, commensurate with your experience\n37.5 hour working week\n25 days’ holiday plus public holidays, with the option to buy up to 5 additional days\nContributory pension scheme with up to 8% company contribution\nLife Assurance (4 x basic salary)\nIncome Protection Insurance\nSave As You Earn (SAYE) share scheme \nElectric Vehicle (EV) scheme\nCycle to Work scheme \nVolunteering day \nLearning and development opportunities\nHybrid working available\nPlease note that some employee benefits are available upon successfully completing your probationary period. Filtronic plc is an equal opportunities employer and is committed to building a diverse and inclusive workplace where everyone can thrive. We welcome applications from all qualified candidates regardless of age, gender, ethnicity, religion, sexual orientation, or disability status. 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