Overview
RF Passives & Subsystems Trainee (PRF)
Department: Procurement
Contract type: Internship
Duration: 1 year
Working hours: Full-time, as applicable
Role overview
Are you passionate about RF/microwave passive components and eager to work end-to-end from EM design to lab validation and subsystem integration? Join the RF Product Line (Passives & Subsystems) as a Trainee. You will contribute to the design, simulation, prototyping, and test of passive RF components (filters, multiplexers, couplers, dividers/combiners, duplexers, waveguide components, antenna feed chains) and support their integration into RF subsystems. You will also explore AI/ML techniques to accelerate design, optimization, and test data analysis. We work as a collaborative “hive-mind” with daily stand-ups, knowledge sharing, and dedicated mentoring—so you’re always part of a team and never working alone.
* Design and EM simulation of passive RF components: optimize for insertion loss, return loss, isolation, group delay, power handling, and PIM performance using tools like HFSS/CST and circuit-level tools (e.g., ADS/Genesys).
* Build and verify breadboards/prototypes in the lab: set up and run VNA measurements (S-parameters, group delay), perform accurate calibrations (SOLT/TRL, waveguide kits), manage fixturing/de-embedding, and contribute to PIM/linearity checks where applicable.
* Support passive RF subsystems: assist in the design, assembly, and integration of multiplexers, RF distribution networks, and antenna feed subsystems; help with troubleshooting and performance tuning.
* Generate engineering documentation: electrical analyses, test procedures, test plans, and test reports; contribute to BoMs and design packages; support design reviews and configuration control.
* Apply AI/ML and data analytics: develop surrogate models to speed up EM sweeps, run design-space exploration/optimization (e.g., Bayesian/genetic), and analyze lab data for anomaly detection and performance prediction (Python/MATLAB).
* Participate in daily stand-ups and team rituals: share progress, blockers, and learnings; collaborate closely with your mentor and cross-functional teams (mechanical, systems, test, manufacturing).
* Education: Bachelor’s degree in Engineering (Telecommunications, Electrical/Electronic, or similar) is required; a Master’s degree is a plus (completed or in progress). Focus on RF/microwave strongly preferred.
* Technical knowledge:
o Microwave network theory, transmission lines, waveguide/microstrip/SIW fundamentals.
o Passive components: filter synthesis (e.g., Chebyshev, cross-coupled), couplers, power dividers/combiners, duplexers/multiplexers, cavity/waveguide components, antenna feeds.
o Awareness of high-power/passive behavior: PIM basics, thermal/mechanical constraints, materials and surface finishes.
* Tools and methods:
o EM/circuit simulation: HFSS, CST, ADS/Genesys (or similar).
o Lab instrumentation: VNA calibration and measurement best practices; familiarity with PIM/analyzer setups is a plus.
* Data and scripting: MATLAB and/or Python for data processing, optimization, and ML (scikit-learn/TensorFlow/PyTorch a plus).
* Soft skills: Team player with initiative and autonomy, strong commitment, problem-solver, attention to detail, proactive learning mindset.
* Culture and language: Multicultural mindset; English proficiency required.
* Availability: Full-time; on-site lab presence as required.
What we offer
* Hands-on experience across the passive RF lifecycle: synthesis, EM modeling, prototyping, measurement, and subsystem integration.
* Exposure to industry-standard EM/circuit tools and state-of-the-art RF lab equipment.
* Practical introduction to AI/ML applied to RF design and test data analytics.
* Continuous mentoring, daily knowledge sharing, and a supportive team environment.
* Support for formal studies: Master’s programme through UEMC and study allowance of €1,000/month.
* Flexible remote work: up to 2 days per week according to company policy, plus access to on-site amenities.
* Supportive culture that values initiative, responsibility, and teamwork.
To apply, please visit our careers page: Beca/Internship Young Talent Program 2025-2026 (M/F/X) in Tres Cantos, Madrid, 28760 | System at Thales Group
Seniority level
* Internship
Employment type
* Full-time
Job function
* Aerospace/Defense
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