Esin Yondem: Lead Software Engineer

As our Meet the Team series continues, we’re celebrating Women in Engineering Day with Esin Yondem from fighter jets to electric flight.

Esin’s fascination with flight began in childhood where she imagined herself soaring through the sky. That dream led her to software engineering, and eventually to an 18-year career developing flight-critical systems for some of the most advanced aircraft in the world.

Before joining Evolito, Esin worked on a wide range of aerospace platforms—from fighter jets and turboprops – and a wide range of systems – from flight control systems to integrated cockpit avionics. She’s led software development for mission systems and contributed to multiple certification programs, building a deep understanding of what it takes to deliver safe, reliable aerospace products.

Esin Yondem

Now at Evolito, Esin is Lead Software Engineer for our Motor Controls and Battery Management System (BMS). Her work underpins the performance and safety of our hybrid and electric propulsion systems.

One of her standout projects is the BMS for an electric vertical take-off and landing (eVTOL) aircraft.  The system is expected to reduce emissions by up to 80% compared to conventional flight.Esin’s team improved its performance sixfold using model-based design, reducing human error, and improving system reliability.

Esin’s motto is: “If you can’t prove it works, it doesn’t work.” That mindset has made her a trusted mentor and a key contributor to Evolito’s rigorous safety culture.

Esin is a true advocate for diversity in engineering. While studying Computer Science and Engineering at Orta Doğu Teknik Üniversitesi / Middle East Technical University in Turkey, her class had a roughly 50/50 gender split—something she rarely sees in the aerospace field. Today, she’s dedicated to mentoring teammates and building a more inclusive industry.

Aerospace software faces unmatched safety standards—every line of flight-critical code is tested, verified, and documented to ensure the system is robust. Evolito’s Motor Control software undergoes rigorous testing, including unit tests, hardware-in-the-loop simulations, dynamometer evaluations, and finally motor tests, to ensure compliance with the highest industry standards DO-178C Level-A.