Position Summary: We are seeking a Semi-Senior RF Engineer to contribute to the definition, development, and validation of complex electronic and RF systems, working within multidisciplinary teams. Key Highlights: 1. Design, development, and validation of complex RF and electronic systems 2. Technical coordination across RF, digital, power, and software domains 3. Collaboration with multidisciplinary teams throughout the entire product lifecycle **ARQUIMEA**, we are a **technology company** operating globally and delivering innovative solutions and products in highly demanding sectors. Our business sectors are **Aerospace, Defense and Security, Big Science, Biotechnology, and Fintech**. **Primary Role and Scope:** * We are seeking a Semi-Senior RF Engineer to contribute to the definition, development, and validation of complex RF and electronic systems. * The role focuses on system-level design, board-level design, flow-down requirements, architecture trade-offs, and technical coordination between RF, digital, power, mechanical, and software domains. * The ideal candidate has hands-on experience bridging subsystem/board design and overall system performance, ensuring compliance with functional, performance, and environmental requirements. * This position requires a strong analytical mindset, practical engineering judgment, hands-on experience, and close collaboration with multidisciplinary teams throughout the full product lifecycle. **Main Responsibilities:** * Define and maintain system-level architecture for RF and electronic systems. * Translate customer and mission requirements into system and subsystem specifications. * Perform system-level trade-off analysis (performance, cost, power, complexity, risk) * Define and manage key system budgets: o RF link budget o Noise figure and gain budget o Power consumption and thermal budget o Frequency plan and spur analysis * Coordinate interfaces between subsystems: o RF, analog, digital, power, firmware, and mechanical oo Definition and control of ICDs (Interface Control Documents) * Support RF system design activities: o Receiver and transmitter architectures oo Frequency conversion chains oo LO, PLL, and clocking strategies * Collaborate with hardware teams to ensure subsystem designs meet system intent * Support system-level simulations and analysis using appropriate tools * Participate in design reviews: * Support system integration, bring-up, and debugging activities * Analyze test results and correlate measurements with system-level expectations * Support verification and validation plans and procedures * Interface with project management and stakeholders on technical topics * Board design for RF is a plus * Experience in space or high-reliability systems is a plus. **Required Education and Competencies:** * Bachelor’s degree in Electrical/Electronics Engineering or equivalent. * 3+ years of experience in RF / microwave * Hands-on experience with RF systems and components * Desirable knowledge in PCB design tools such as: o Altium Designer (preferred) o Cadence Allegro / OrCAD o Mentor Xpedition * Proficiency with RF design and simulation tools o ADS o HFSS o CST o AWR Microwave Office * Ability to read and interpret RF schematics and simulation results * Ability to read and understand parts datasheets * Experience working with multidisciplinary engineering teams. The position is **located** at our headquarters in **Madrid Capital, at** Serrano Galvache, 56. We seek individuals who are **curious**, **creative**, **tenacious**, and **collaborative**, eager to get things done and unafraid to tackle challenges to help improve the society in which we live. #### **Think Big, Do the Job & Enjoy Life** *At ARQUIMEA, we value diversity and inclusion. We do not discriminate on the basis of race, color, religion, gender, sexual orientation, gender identity, national origin, age, disability, or other protected status under applicable law. All candidates will be considered on an equal opportunity basis based on their skills and experience.*