Ogulcan Ariyurek

- Developing new features and resolving issues within PLCM for capsule coffee machines, cutting regression defects by >25% per internal QA reports - Conducting thorough code reviews; improving unit tests & documentation, lowering mistakes by >40% per Confluence metrics - Building in-house test automation with ML-assisted log classification; cutting manual verification time/release by >50% and accelerating regression cycles from weekly to near-daily cadence vs. previous release cycles

- Led a mid-sized embedded systems team as Scrum Master (Agile), lifting on-time delivery to >90% and shortening cycle time by >20% vs. prior release cycles - Reorganized responsibilities & clarified ownership across 6 active projects, increasing throughput and reducing handoff friction, measured by fewer blocked items per sprint - Reviewed nearly all deliverables from C/C++ code to circuit/PCB design, ensuring EU-standard compliance and reducing post-merge & prototype defects by >50%

- Programmed ARM Cortex M0/M4 based MCUs using embedded C utilizing GSM, UDP & LoRa communications while communicated with analog/digital sensors writing or reconstructing their libraries - Designed dimmable LED matrix embedded library utilizing ADCs and interrupts, touch panel with touch sensor and screen using low-level libraries

• Detailed project planning & budgeting for controller devices • Creative business development processes and design of block diagrams • Comprehensive benchmarking & IoT project follow-up • Machine hardware simulator design for Controller & IoT projects

• Analog/digital mixed circuits designs and tests • Multi-layer & high-density PCB designs • High speed (GHz) RF components compatible designs • Embedded software designs with C programming on 32-bit ARM Cortex M4 based microcontroller • Experience on I2C, SPI, Ethernet (TCP/IP), RS232, RS485, CAN protocols • GSM, Wi-Fi, Web SMS, TCP/IP, SMTP, SNMP, NTP, FTP, FatFS, FreeRTOS, complex algorithms experience • TUBITAK granted project submission

• ADC & DAC (12-14 bit) densed two-layer PCB design • Embedded software design with Assembly on 8-bit 8051 based microcontroller • Full characterization tests of various opto-electronic semiconductor materials such as ECR, dark current, reactivity, which are designed, growth & manufactured in-house • Parametric measurements of GaN based LED materials with supporting the design & fabrication team • TUBITAK (The Scientific and Technological Research Council of Turkey) granted project submission

• ADC & DAC (12-14 bit) densed two-layer PCB design • Design of a video camera tester device that is produced for military usage • VHDL programming applications on XILINX Starter Kit

• Inspection of all the processes as for the PCB manufacturing • Active role in unit testing, system testing, cable testing and manufacturing, writing test software