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Sotiris Z.
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Sotiris Z.

Power Electronics Engineer

Practical electronics engineer with 9 years experience taking specs and ideas and turning them into working prototypes and eventually products. Persistence and analytical thinking is a must, but when your hobby is your profession you are personally invested in every project. That's my mindset. Taking full ownership of the project combined with effective customer communication, so we can the best results! Here is a list of my technical skills: Simulation & Analysis ------------------------------------------------------------------- LT spice, Microcap, Matlab, FEMM PCB Design ------------------------------------------------------------------- Analogue, digital, mixed signal design, schematic capture and pcb layout, EMC testing, IPC-2221, signal integrity, high voltage rules Power electronics topologies ------------------------------------------------------------------ LLC, Full Bridge, Half bridge, Buck, Boost, Phase shifted full bridge, PFCs, Flyback, DC:DC, AC:DC converters, SMPS design, feedback control loops Magnetics Design ------------------------------------------------------------------ Simulation - calculations and winding of transformers and inductors at my facility. Programming Languages ------------------------------------------------------------------ Embedded C, C#, Assembly, Java, SQL Microcontrollers ------------------------------------------------------------------ AVR AtMega series, PSOC4, PSOC5 MCUs, Arduino Communication protocols ------------------------------------------------------------------ I2C, RS232, RS485, SPI, 1-WIRE, UART, MODBUS Software ------------------------------------------------------------------ Altium Designer, Atmel Studio, PSOC Creator, Visual Studio, Simulink, Mathcad, MS Office Lab equipment ----------------------------------------------------------------- Oscilloscopes, LCR meters, multimeters, PSUs, electronic loads, dynamic signal analyzers, soldering irons, power-tools, mechanical equipment, high voltage psus

🇬🇷Trikala, Greece$85/hr100% JSS4.99 (11)Since Jul 2018

Earnings and projects

MRR
$6.7k

Last 6 months ÷ 6

World#3,083 / 412k
🇬🇷Country#5 / 1,051
Revenue, last 30 days
$8.8k

Last 6 months: $40k

World#1,880 / 412k
🇬🇷Country#2 / 1,051
Total earnings
$115k

Billed in all: $121k

World#33,246 / 412k
🇬🇷Country#85 / 1,051
Per project
$7.2k

$40k in the last 6 months

World#23,551 / 412k
🇬🇷Country#55 / 1,051
Projects, last 6 months
1
0% fixed100% hourly
World#128,092 / 412k
🇬🇷Country#325 / 1,051
Projects in all
16

Across 17 contracts

18% fixed82% hourly
World#155,087 / 412k
🇬🇷Country#419 / 1,051

Earnings, last 30 days

$121k+$8.8k earned in the last 30 daysBilled in all, before Upwork's fee · drag across the chart to see what was earned in any stretch
$110k$115k$120k$125kOct 8Oct 23Nov 7

Skill rankings: Top 0.47% in Hardware Troubleshooting

Top 1% in 2 of 12 skills, ranked by MRR among everyone on Upwork with the skill.

  1. 3Hardware Troubleshooting642 freelancers · 🇬🇷 #1Top 0.47%
  2. #6Power Electronics221 freelancers · 🇬🇷 #1Top 3%
  3. #8Analog Electronics193 freelancers · 🇬🇷 #1Top 4%
  4. #10Microcontroller Programming535 freelancers · 🇬🇷 #1Top 2%
  5. #13App Design1,737 freelancers · 🇬🇷 #1Top 0.75%
  6. #14Circuit Design544 freelancers · 🇬🇷 #1Top 3%
  7. #18Altium Designer526 freelancers · 🇬🇷 #1Top 3%
  8. #19Hardware Design355 freelancers · 🇬🇷 #1Top 5%