About SQE

At SQE (Supreme Quality Engineering), we deliver specialized, high-performance engineering solutions with a core focus on Radio Frequency (RF) engineering and antenna design. Established in 2013 in Warsaw, Poland, SQE has grown from a solo consultancy into a collaborative team of RF and mechanical engineers who share a commitment to technical excellence and continuous innovation.

Our engineering work spans the entire RF development pipeline—from early-stage electromagnetic simulations and impedance matching to prototyping, validation, and environmental testing. Mechanical engineers at SQE play a vital role in designing all aspects of the product, including mechanical structures, enclosures, and components, ensuring seamless integration with RF systems. We utilize CATIA software extensively for 3D modeling, detailed mechanical design, and analysis, enabling us to develop robust and optimized hardware.

We have extensive experience in the design and optimization of various antenna types (including patch, monopole, dipole, and custom array configurations) and high-frequency PCB layouts for applications ranging from IoT to aerospace.

At SQE, engineers are involved in every stage of the product lifecycle. Our projects often include tasks such as S-parameter analysis, Smith chart interpretation, near- and far-field measurements in anechoic chambers, thermal and mechanical modeling, and system integration with digital systems and firmware.

We maintain a rigorous design methodology grounded in simulation-driven development using tools such as CST Studio Suite and HFSS. Our laboratory is equipped for both prototyping and precision measurement, including VNAs, spectrum analyzers, and time-domain reflectometers.

As a company, our mission is to develop innovative, reliable, and precision-engineered RF systems tailored to complex, evolving client needs. We value engineers who are curious, detail-oriented, and excited by the challenges of solving real-world RF problems across diverse industries.

Our Services

• Antenna Design & Development

  From RF concept to mechanical implementation and design for manufacturing, we cover the full antenna development lifecycle.

• Subcontracting for RF Industry Leaders

  We collaborate with major RF equipment manufacturers, providing expert engineering support as trusted subcontractors.

• Multidisciplinary Collaboration

  We coordinate with international teams of process and test engineers to ensure seamless integration and high-quality outcomes.

• Wide Frequency Range Expertise

  Our projects span frequencies from 100 MHz to 77 GHz, with a strong focus on cellular and WiFi bands.

• Railway Antenna Competence Center

  We specialize in railway antenna design, addressing production challenges and enhancing collaboration across global customer branches.

• MIMO Antenna Evaluation via Test Drives

  We offer advanced MIMO antenna performance evaluations using real-world test drives. Our proprietary methodology leverages network scanners to capture and compare MIMO channel parameters, enabling objective benchmarking of different antenna designs under realistic conditions.

• Transportation & Industrial Applications

  We design antennas for buses, trucks, communication systems, and industrial environments.

• Advanced Driver Assistance Systems (ADAS)

  We contribute to mm-wave antenna designs for cutting-edge ADAS applications.

• Defense Sector Experience

  Our team has hands-on experience in antenna design for defense applications, ensuring robust and reliable performance.

Our History

SQE was founded in 2013 in Warsaw, Poland as a single proprietorship with the goal of delivering high-quality consultancy services. By 2016, the company had launched full-scale operations, specializing in Radio Frequency (RF) engineering, with a strong focus on antenna design.

In 2021, SQE expanded its capabilities by forming a dedicated team comprising two RF engineers and one mechanical engineer. The team grew further in 2024 with the addition of another mechanical engineer.

Today, SQE proudly operates with a skilled team of two RF engineers and two mechanical engineers, continuing its mission of delivering Supreme Quality Engineering solutions.

Currently, we are looking for the third RF engineer to strenthen our team further.

Our Achievements

• We have developed antennas with over 33'000 units sold and contributed to the design or redesign of products that have reached more than 175'000 units in sales — and the numbers keep growing!"
• Our innovations have led to six patent applications across the US, Europe, and China.
• Thousands of our antenna systems are in operation on trains across Germany, Switzerland, Italy, France, the UK, and beyond.

Career Opportunities

Joining SQE means contributing to technically demanding, real-world projects while working in a highly collaborative environment where technical depth, initiative, and a passion for engineering are deeply valued.

We are excited to welcome a talented RF Engineer to our growing team! For full details and to apply, please visit our job posting on Pracuj.pl..

Contact Us

Main office address: ul. Ostrobramska 101 / office 309a, 04-041 Warsaw, Poland

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