Ajax Systems

Lead Embedded Radio Engineer

Reposted 25 Days Ago

Be an Early Applicant

2 Locations

In-Office

Mid level

Security • Appliances • Manufacturing

The Role

The Lead Embedded Radio Engineer will develop RF solutions, fine-tune RF chips, create test environments, analyze issues, and mentor junior team members.

Summary Generated by Built In

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 applications. The team is distributed among 2 offices in Kyiv and Lviv, all technical and product decisions are made locally.

Ajax already released and continuously improves Malevich OS, which is a heart of our Hub’s. Now we are looking for Embedded Radio Engineers who are ready to make our system better with us. For us never could be enough: there are still a lot of new functionality, sensors, features to make our system even cooler.

Required skills:

Proven experience in short range devices development for commercial products;
Understanding wireless technologies (e.g. Wi-Fi, Bluetooth, Zigbee, LoRa, NB-IoT) and protocols stack;
Work with RF tools to capture, transmit and analyze RF signals from/to radio broadcast. Vector network analyzer, signal generator, spectrum analyzer, software defined radio;
Knowledge about circuit/block design of RF receiver/Transmitter, frequency synthesizer, mixers, digital signal processing, antennas arrays. Understand interferer and collision in RF, methodology of resolve conflicts in RF;
Understands different modulation techniques (AM, FM, PM, ASK, FSK, PSK, QAM), understands emit RF spectrums depend of modulation, understands receiver sensitivity, budget of RF channel;
Knowledge of embedded coding techniques, interfaces (e.g. SPI, I2C, UART, CAN, RS485) and subsystems.

Would be a plus:

Experience with ARM Cortex M (STM, Realtek, TI etc);
Scripting languages Python, Bash;
Commercial experience with specific real-time operating systems;
Understanding regulatory of usage radio frequency;
Good hands-on experience of software engineering fundamentals such as testing, continuous integration, continuous deployment, pull requests and code reviews, source control, work item/issue tracking.

Responsibility zone:

Participate in the full embedded software life cycle for RF solutions: choise, design, implementation, code reviews, documentation, testing and validation;
Fine tune RF chips for best performance;
Create test environment to validate quality gates for radio solutions;
Analysis and systematic problem solving for reported issues;
Cooperate with electrical engineers to perform verification of new hardware from radio perspective. Review and provide feedback on the firmware specific aspects of hardware design;
Be ready to mentoring of newcomers|trainee coworkers.

With us you will enjoy:

Working with a team to build an industry’s future;
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;
Non-trivial challenges and various range of interesting tasks;
Competitive salary;
Medical Insurance;
Corporate English;
Compensation for speciallized training;
The opportunity to participate in the beta test project of Ajax security systems — receiving and testing new gadgets before their release.