Orestes Mersinias, Developer in London, United Kingdom
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Orestes Mersinias

Verified Expert  in Engineering

Device Drivers Developer

Location
London, United Kingdom
Toptal Member Since
March 9, 2022

Orestes is a senior software engineer with a strong background in embedded systems, multi-threading, bare metal, RTOS, real-time systems, and communication protocols. He has worked in various industries, notably augmented reality, robotics, automation, satellite, and IoT.

Embedded SoftwareEmbedded SystemsInternet of Things (IoT)FirmwareEmbedded HardwareC++Embedded C++CLinuxCSSNode.jsTypeScriptPython 3STM32RTOS

Portfolio

Hanwha-Phasor
C, Embedded C, Embedded Software, Embedded Systems, Internet of Things (IoT)...
XYZ Reality
C++, Embedded C++, Embedded C, Embedded Software, Embedded Systems...

Experience

Embedded C - 9 yearsEmbedded C++ - 9 yearsC++ - 9 yearsDevice Drivers - 8 yearsARM Embedded - 8 yearsSTM32 - 8 yearsReal-time Operating System (RTOS) - 8 yearsC - 8 years

Availability

Part-time

Preferred Environment

C++, C, Embedded Software, Embedded Systems, Internet of Things (IoT), Firmware, Embedded Hardware

The most amazing...

...project I've worked on is an augmented reality construction helmet with sub-millimeter accurate spatial tracking.

Work Experience

Senior Software Engineer

2020 - 2021
Hanwha-Phasor
  • Developed the firmware for a phased array bi-directional satellite antenna.
  • Processed inputs to produce a real-time steering vector to aid in satellite tracking.
  • Developed a robust platform-agnostic object-oriented hardware abstraction layer, which allowed the simulation and testing of drivers and peripherals.
  • Added the ability to monitor and control key system parameters from a lightweight web server and REST APIs.
  • Created a mechanism and protocol to update peripheral MCU configuration from a central point.
Technologies: C, Embedded C, Embedded Software, Embedded Systems, Internet of Things (IoT), Firmware, Embedded Hardware, Technical Product Management

Embedded Engineer

2019 - 2020
XYZ Reality
  • Designed and developed the firmware architecture for a family of devices in the AR sector. Developed high-quality code, consistently exceeding expectations and delivering ahead of deadlines.
  • Implemented drivers for communicating with peripherals over SPIP, I2C, and a Universal Asynchronous Receiver/Transmitter (UART). Created custom protocols for communications between devices with speed, redundancy, and CPU optimization in mind.
  • Implemented a universal protocol-agnostic AES-128 encrypted bootloader with dual firmware redundancy for either a computer to device or device to device software update.
Technologies: C++, Embedded C++, Embedded C, Embedded Software, Embedded Systems, Internet of Things (IoT), Firmware, Embedded Hardware, Technical Product Management

Holosite

HoloSite is the world's first engineering-grade augmented reality platform. An integrated cloud-based solution plugging into our AR construction headset, "The Atom". I was the sole embedded engineer responsible for bringing the hardware to life.

Libraries/APIs

Node.js

Tools

GDB

Languages

C++, C, Embedded C++, Embedded C, HTML, CSS, TypeScript, Python 3

Platforms

STM32, Linux

Other

Real-time Operating System (RTOS), Wireless Protocols, Device Drivers, ARM Embedded, Embedded Software, Embedded Systems, Internet of Things (IoT), Firmware, Embedded Hardware, Technical Product Management

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