System Integration Tasks:

• Testing of Tx path and Rx path (Frond End) of prototype transceivers.
• RF Measurements (SNR, De-sense/Sensitivity, ACLR, etc.) according to 3GPP Specs , Customer Specs,
  Internal Specs.
• Setup's Calibration and General Preparation for Testing Campaigns and Progress Tracking.
• System Debugging for Platform and Customer Issues.
• Evaluation and review of Board Design and proposals for modifications.
• Composition of new Documentation and Reports.

Silicon Validation Tasks:

• IC Envelope Tracker Validation and performance optimization.
• Testcases definition, creation (in Matlab or/and Internal Tool) , Testcases execution and result's evaluation.
• Current Measurements of the DCDC Blocs, syncing Tests of the Tracker, switching-state mode testing and
  overall performance testing.
• ET Power consumption optimization, targeting Block's Ultra Low Power Consumption with maximization of
  efficiency as well as keeping Transmitted Power Performance to the optimum Levels.
• Testing of new FW to the silicon.
• New silicon Bring Up.

Hardware Validation of Silicon prototype: Saturn TV:
Saturn TV system is aiming to complete the analog Radio & TV offering of Business Line (BL) Car
Entertainment. Its main purpose is to provide a monolithic integration of all relevant functions to support
digital Radio & TV functionality for terrestrial Reception. Saturn is aiming to be an end to end solution,
consisting of all required functions from tuner up to digital A/V outputs.

Validation Tasks :

• IC Blocks validation.
• Sensitivity measurements (Single and Dual Tuner).
• Adjacent Channel measurements (Single and Dual Tuner).
• Harmonics Rejection measurements & further harmonics influence investigation.
• System performance testing.
• Execution of Testcases in Java Testing Environment with the use of JSON Script files.
• Execution of Testcases in Matlab Framework.
• Execution of Testcases in LabVIEW Framework.
• Integration of new instruments to the setup.
• Debugging and compose of technical reports.
• Analysis of extracted results and problems solving attitude.
• Collaboration with the designing team of the IC for improvements in design.
• Collaboration with software team regarding Testcases/Firmware verification.

The Scope of the IC Validation is to confirm the good functionality of the IC or show the areas where the solution is failing the specification or customer defined limits. All the conclusions are based on measured results and justified assumptions. In the main activities of the IC validation is the interaction with External/Internal departments/sectors (Suppliers, Customers, internal departments) and engineers/ developers (Design team / Firmware Engineers) in order to assist the ongoing improvement of the product

*Hardware Validation of Silicon prototype DB7500R:
DB7500R is a Modem baseband processor that is part of the M7500 platform. The M7500 platform provides mobile equipment manufacturers with a complete and verified system solution for an LTE-FDD/LTE-TDD/WCDMA/TD-SCDMA/GSM modem suitable for Smartphones & Tablets, notebooks, tablets, Mobile Internet Devices (MID), and Consumer Electronic (CE) devices with access to high-speed cellular data services, Machine-2-Machine (M2M)/Internet of Things (IOT), and USB modem.

Responsibilities:
Modem Sub-System (SoC) PLL blocks validation:

• Frequency & Lock-time measurements
• Current & Power Consumption measurements
• Jitter measurements & Crosstalk investigation
• Glitch-Free Clock Switches Validation
• Random Number Generator (RNG) Block Verification requirements definition and Validation plan.
• Noise sources investigation and signal Integrity at High-Speed Frequencies.
• Testing of the boards with IEEE 1149.1 Standard Test Access Port and Boundary-Scan (Joint Test Action
  Group (JTAG)
• Testing of embedded cores within system on chips (SoC) on the boards with IEEE 1500 standard.
• Compliance with Standards regarding EMC, CE vs EMI & ESD.
• Writing / optimizing OO Matlab Code in a way to be as robust and reusable as possible.
• Maintenance of Matlab testing framework used for Automated Testing.
• Source Code Management (SCM) and Distributed Revision Control using GIT software.
• Execution of the testing campaign (over Process/Voltage/Temperature) and evaluation of the results.
• Debugging and compose of technical reports.
• Bring-up preparation of the Chip.

*Mixed-signal and Audio Component Verification of silicon prototype A-GOLD™ 610 / A-GOLD™ 620:
A-GOLD™ 610 / A-GOLD™ 620 is a SoC (system on chip), designed in a 65nm low power CMOS process technology and is intended for use together with the X-GOLD™ DBB 3G (Digital BaseBand device) to create low cost 3G mobile terminals. A-GOLD™ 610/620 integrates into one device a dual mode cellular RF transceiver (supporting GSM, GPRS, EDGE, W-CDMA and HSPA), Bluetooth (BT4.0), FM Radio receiver and transmitter, audio front end, analog measurement interface, as well as the power management unit providing all necessary supplies for the complete system.

Responsibilities:

• Design and Development of Automated Test Environment in Python.
• Creation of several test-cases (according to product specification) for measuring the I/O Audio quality and
  performance characteristics of the Chip.
• Execution of the testing campaign and evaluation of the results.
• Analyze and solve co-existence issues at silicon, substrate or board level.
• Debugging of the chip and compose of technical reports.
• Assist the bring-up procedure of the Chip.
• Review & Design of PCB's / Prototypes to enable validation of functionality; use them in validation tasks.
• Give feedbacks to the design team of the chip for design optimization purposes

*Validation & Characterization of silicon prototype CG2910 &CG2905 [CG2910: Monolithic combo integrating NFC, GPS/GLONASS, Bluetooth and Buetooth Low Energy (BLE) and FM TX/RX. It is manufactured in 40nmCMOS technology and provided in a WLCSP package. The CG2910 is specially
optimized for best in class power consumption with a very high level of integration.]

Core Duties:

1. Develop, run and optimize Automated tests for silicon prototypes.
2. Evaluate the Results.
3. Suggest solutions.

Responsibilities:

• Validation & Characterization of FM Connectivity chipset according to customer requirements and datasheets and internal test plants.
• Development of scripts for automated testing on various test equipment.
• Building regression test suites for automated testing of all functionality.
• Design of PCB's / Prototypes to enable validation of functionality; use them in validation tasks.
• Study of new features of FM Connectivity chipset.
• Characterization / Validation of antenna Prototypes to be in conjunction of above Wireless chipset.
• Optimization of A.T.E. in terms of time limits and overall performance.
• Evaluation of tests results and issuing of technical reports.
• Collaboration with the project manager about project’s rescheduling.

General job description:

• Validation & Characterization of Connectivity chipsets (Bluetooth, FM, GPS, NFC, WLAN), according to
  customer requirements and datasheets and internal test plants.
• Development of scripts for automated testing on various test equipment.
• Building regression test suites for automated testing of all functionality.
• Design of PCB's / Prototypes to enable validation of functionality; use them in validation tasks.
• Study of new features of Connectivity chipsets (Bluetooth, FM, GPS, NFC, WLAN).
• Design and characterization / Validation of antenna Prototypes to be in conjunction of above Wireless
  chipsets.

Duties as an Avionic Engineer :

• Aircraft Maintenance. Including: Inspection, testing, adjustment, and repairing avionics equipment, such
  as radar, radio, navigation, auto-pilot, and compass systems, installed in aircrafts and helicopters, using hand
  tools and test equipment.
• Authorized to: extract Digital Flight Data Recorder (DFDR) system Data & update GPS instrument with
  new maps.

Duties as a Maintenance Controller:

• Plan, organize, direct, and manage the maintenance and repair of aircraft, aircraft components, and aviation
  support equipment.
• Direct and manage the scheduling of aircraft, aircraft components, and aviation support equipment
  inspections.
• Inform the Aircraft Maintenance Officer of work progress and advise them on matters pertaining to
  maintenance and repair of aircraft, aircraft components, and aviation support equipment.
• Ensure the material condition.

I have fulfilled my military obligations in the ranks of the Hellenic Air Force, serving as an Air Traffic Controller Assistant (Rank-Aircraftman).

Responsibilities:

• Design and issue IFR and VFR Flight Plans for Private, Commercial and Military Aircrafts and give a notice to the competent bodies like: Eurocontrol and Hellenic Civil Aviation Authority (H.C.A.A.).
• Registration and classification of incoming and outgoing NOTAMs.
• Update En Route Maps, (low and/or high altitude enroute charts).
• Use of TELEX network and other wireless communication systems).

On-the-job training about:

• Registration, Inspection and maintenance of VAR Telecommunication systems, via Automatic Test
  Equipment (A.T.E.).
• Maintenance of transceivers and major wireless communications systems (between aircrafts and ground
  segment).
• Design Electronic circuits via ORCAD, Circuit Cam, and Board Master -Software.
• Fabrication of PCBs using the PROTOMAT M300S.
• Laboratory tests to power suppliers and UPSs.
• In-situ test on Radio Detection And Ranging subsystems.
• Calibration of Supervisory control and data acquisition (SCADA) systems.tion (SCADA) system Calibration