AK_
SYS.ONLINE // portfolio v1

ANASTASIOS
KOLIATSIS

Electrical & Computer Engineer

Embedded Systems | Electronics | Hardware | IoT | Embedded Security

Electrical & Computer Engineer with more than 10 years of hands-on experience in electronics, embedded systems, PCB design, hardware testing, board bring-up, debugging and systems integration. I design and build complete embedded systems from hardware architecture and PCB development through firmware, connectivity, testing and validation.

View Projects Technical Background
01 / PROFILE

Engineering Profile

My background spans electronics, embedded hardware, firmware and security — the full path from a schematic to a validated device in the field. I work across the hardware/software boundary and am comfortable at the bench as much as in the code.

Electronics engineeringEmbedded systemsHardware architecturePCB designBoard bring-upHardware troubleshootingSignal analysisEmbedded C/C++IoT systemsRFID / NFCEthernet / Wi-FiMQTTHW/SW interface analysisSecure device provisioningEmbedded securityFirmware analysisReverse engineering
Approach — strongly hands-on
Design→Prototype→Bring-up→Measure→Debug→Validate→Improve
02 / CASE STUDIES

Featured Projects

Systems I have personally designed, built, tested and debugged.

Hotel Access Control System — enclosure render
PRJ-01Embedded Systems · Hardware · PCB Design · IoT

Hotel Access Control System

A complete embedded hotel room access-control platform designed from the ground up.

Engineering areas
  • ▸Hardware architecture
  • ▸PCB development
  • ▸Capacitive touch interface
  • ▸NFC integration
  • ▸Networking
My contribution

Designed and developed the platform end to end: hardware architecture, PCB development, NFC and touch integration, networking, firmware, device identity and testing.

ESP32-WROOM-32ECustom PCBRFID / NFCPN7160MPR121EthernetLAN8720 / LAN8710PoE+7
Read case study
[ Add project image ]
PRJ-02Embedded Systems · IoT · Security Research

Embedded IoT DIN-Rail Controller

Development and integration of an embedded DIN-rail control device with local and cloud connectivity.

Engineering areas
  • ▸Hardware/software integration
  • ▸Reverse engineering
  • ▸Network communication
  • ▸Device control
  • ▸Firmware behaviour
My contribution

Add details — describe what you personally designed, modified and tested.

Embedded MCURelay controlWi-FiMQTTLocal device controlFirmware modificationOpenBekenCustom firmware+2
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PRJ-03Hardware · PCB Design · Embedded Systems

Marine / Offshore Embedded Electronics

Hardware development, testing and troubleshooting of embedded electronic systems used in marine and offshore environments.

Engineering areas
  • ▸Engineering methodology
  • ▸Reliability in real operating environments
  • ▸Root-cause analysis
  • ▸Validation
My contribution

PCB development, board bring-up, electronics testing, calibration, hardware validation, root-cause analysis and system commissioning.

PCB developmentBoard bring-upCalibrationHardware validationRoot-cause analysisSignal analysisOscilloscopeLogic analyser+2
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PRJ-04Security Research · Embedded Systems

Embedded Firmware Security Research

Static analysis and reverse engineering of ARM Cortex-M firmware to understand device architecture, interfaces and potential security weaknesses.

Engineering areas
  • ▸Firmware architecture
  • ▸UART command interfaces
  • ▸Memory access
  • ▸Device diagnostics
  • ▸Hardware interfaces
My contribution

Add details — describe your analysis approach.

ARM Cortex-MSTM32GhidraFirmware analysisUARTMemory-mapped peripheralsEmbedded CReverse engineering+2
Read case study
03 / CAPABILITIES

Engineering Skills

Embedded Systems0x01
  • C / C++
  • ESP32
  • ARM Cortex-M
  • STM32
  • Embedded firmware
  • Real-time device logic
Hardware0x02
  • PCB architecture
  • PCB design
  • Schematic analysis
  • Board bring-up
  • Hardware debugging
  • DFT / DFM
  • Electronics troubleshooting
Interfaces0x03
  • UART
  • SPI
  • I2C
  • GPIO
  • Ethernet
  • Wi-Fi
  • RFID / NFC
Test Equipment0x04
  • Oscilloscope
  • Logic analyser
  • Multimeter
  • Signal generator
  • Programmable power supplies
Networking / IoT0x05
  • MQTT
  • Ethernet
  • Wi-Fi
  • IoT architecture
  • Device provisioning
Security0x06
  • Firmware analysis
  • Reverse engineering
  • Debug-interface analysis
  • Embedded security
  • HW/SW attack-surface analysis
Tools0x07
  • Ghidra
  • Wireshark
  • Linux
  • Python
  • Git
  • FreeCAD
04 / PROCESS

Engineering Workflow

  1. 01
    Requirements
  2. 02
    System Architecture
  3. 03
    Schematic & PCB
  4. 04
    Prototype
  5. 05
    Board Bring-up
  6. 06
    Firmware
  7. 07
    Debugging
  8. 08
    Validation
  9. 09
    Deployment
05 / LAB

Engineering Toolkit

Hands-on at the bench — not only in the editor.

Oscilloscope
Signal integrity, timing, power rails
Logic Analyser
SPI · I2C · UART protocol decode
Multimeter
Continuity, voltages, currents
Programmable PSU
Controlled bring-up, current limiting
Soldering / Rework
Assembly, rework, board modification
UART / Serial Debugging
Console access, boot logs
Firmware Analysis
Static analysis, reverse engineering
PCB Design
Schematic capture to layout
06 / EDUCATION

Education

National Technical University of Athens

Integrated Master of Engineering (MEng)

Electrical & Computer Engineering

Diploma Thesis

“Scalability of Heterogeneous 5G Networks Using Relay Selection and MIMO Antenna Systems”

CommunicationsSignal processingWireless systemsMIMO5G networks
07 / TRAJECTORY

Career Timeline

A progression toward increasingly complex systems.

  1. STAGE 01 · add dates / employer
    Electronics / Technical Engineering
  2. STAGE 02 · add dates / employer
    Electrical Engineering
  3. STAGE 03 · add dates / employer
    Embedded Electronics & Product Development
  4. STAGE 04 · add dates / employer
    IT Infrastructure & Cybersecurity
  5. STAGE 05 · add dates / employer
    Embedded Systems / IoT / Hardware Security
08 / CONTACT

Let’s connect.

Interested in embedded systems, electronics, hardware security or R&D collaboration? Let’s connect.

Email
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LinkedIn
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GitHub
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