Senior Desktop UI Engineer

❗ Important: This is not a fully-remote position - we would like you to work from the office at least twice a week.

🌌 About Us:

We are Asynchronics, an up-and-coming, Warsaw-based space tech start-up specialized in the field of digital twinning for spacecraft systems and subsystems.

Our mission: democratize and streamline spacecraft design and ground validation with the use of cutting-edge simulation technologies. Our open-source, Rust-based simulator empowers system integrators and hardware manufacturers to evaluate their solutions in the digital world.

We value inclusivity and strive to foster a collaborative environment where diverse perspectives and experiences are celebrated. We strongly encourage individuals from all backgrounds and identities to apply. Your uniqueness is an asset!

💻 Your Role:

We are looking for a senior engineer to build the user interfaces for those tools—mostly desktop. You would work closely with Serge, our CTO and co-founder, backend and simulation engineers. We need someone who cares about how the interface works for an engineer, but whose main responsibility is to turn it into reliable, maintainable software.

You would help us:

• Build cross-platform desktop user interfaces for our enterprise simulation software suite (Linux, Windows, Mac — in this order).
• Work out how users should configure simulations and digital twins, run tests and inspect results.
• Connect the interface to the underlying simulation and backend systems.
• Make technical decisions about the UI codebase, reusable components, performance and testing;
• Try early versions with the engineers who will actually use them and improve what does not work.
• Occasionally help with the NeXosim marketplace or Asynchronics website where your skills would be useful. Your main focus will be the engineering software.

👱 This is You:

Come as you are. We are not big believers in standardized interviews or whiteboard screening.

We accept that all of us are different and that you may bring something we didn't foresee, but here is what we would expect:

• Strong experience building and shipping user interfaces for complex desktop software products.
• Strong programming skills in Dart/Flutter or Rust.
• The ability to own implementation, from understanding the workflow through to a working, tested interface.
• Good frontend engineering judgement and attention to usability.
• The ability to collaborate closely with backend engineers and work through technical constraints.
• A good eye for visual clarity and detail.
• Tolerance and respect towards other people — this is important to us.
• Clear written and spoken English.

✨ Bonus Skills:

• Experience with engineering tools, developer tools, data-heavy interfaces or software used to control complex systems.

Salary range for the position: 16.000-20.000 PLN net/month + VAT (B2B)

You would join a small team where people have room to influence how we work and are expected to help each other outside rigid job descriptions. We do not expect you to arrive knowing spacecraft engineering. We do expect you to be curious about it.