Ajax Systems

Middle/Senior Python Developer (Desktop Team) at Ajax Systems (Kyiv, Ukraine)

Ajax Systems· Kyiv, Ukraine·

Role details

Work type
Onsite
Employment
Full-Time

Job description

Ajax Systems is a full-cycle company, working from idea generation and R&D to mass production and sales. We do everything: we produce physical devices (the system includes many different sensors and hubs), write firmware for them, develop the server part, and release mobile and desktop applications.

PRO Desktop meets the needs of every professional working with Ajax security systems. Facilities profiling and remote configuration, alarm monitoring and photo verification, staff administering, and a detailed event log — all in one, intuitive interface.

Responsibilities:

  • Ajax PRO Desktop development (adding new devices, supporting existing devices, adding new functionality and features, fixing bugs).
  • Architectural decisions and concept development.
  • Writing tests.
  • Hard bug fixing.
  • Inter-commands communications.

Stack:

  • Python 3, PySide 6, QML, gRPC.

Must have:

  • 3+ years of experience with Python, including multithreading, asyncio.
  • Knowledge of OOP principles and patterns.
  • Experience with aiohttp.
  • Experience with pytest.
  • Experience with gRPC.

It will be a plus:

  • Experience with QML.
  • Experience with PySide/PyQt.

We offer:

  • Flexible schedule at our offices in Kyiv or Lviv.
  • The opportunity to propose and implement own ideas that have an impact on the product and production.
  • Work in a motivated team and zero bullshit culture.
  • Competitive salary.
  • Medical Insurance.
  • Corporate English.
  • The opportunity to participate in the beta test project of Ajax security systems - receiving and testing new gadgets before their release.

Responsibilities:

  • Ajax PRO Desktop development (adding new devices, supporting existing devices, adding new functionality and features, fixing bugs).
  • Architectural decisions and concept development.
  • Writing tests.
  • Hard bug fixing.
  • Inter-commands communications.

Stack:

  • Python 3, PySide 6, QML, gRPC.

Must have:

  • -3+ years of experience with Python, including multithreading, asyncio.
  • Knowledge of OOP principles and patterns.
  • Experience with aiohttp.
  • Experience with pytest.
  • Experience with gRPC.

It will be a plus:

  • Experience with QML.
  • Experience with PySide/PyQt.

Why work at Ajax Systems

  • Culture: A multinational team of over 4,100 people with a strong sense of purpose – “stand against evil” – and a history of resilience forged through Ukraine’s challenges.
  • Work model: On-site roles in Kyiv and Istanbul; representative offices in UAE, UK, Italy, Spain, and other regions.
  • Engineering focus: Full-cycle product development from scratch, R&D-driven environment, modern tech stack (RTOS, cloud, OTA updates).
  • Perks: ISO 14001 environmental management, commitment to RoHS compliance, and a flat, impact-oriented structure. Hiring process uses AI tools to support application review.

Application questions