ÇAĞATAY KAYNAK

Embedded Systems
Architect.

Firmware · Wireless · RTLS · Industrial IoT

I design and build embedded systems across low-level firmware, wireless communication, real-time systems and hardware integration. My experience spans the journey from early technology research and prototyping to validation and production deployment.

Nearly 10 years of embedded systems experienceGlobal-Scale ProductsProven Experience
01 — About

Close to the hardware.
Beyond the device.

I'm an Embedded Systems Architect with nearly a decade of hands-on experience in firmware development, real-time embedded systems and wireless communication. My work spans low-level software, hardware integration, RF systems and system-level architecture.

I enjoy taking complex engineering problems from an early technical question through experimentation, implementation, validation and production.

02 — Expertise

What I work with.

Embedded & Firmware

Low-level development, drivers, hardware bring-up and real-time firmware.

CARM Cortex-MSTM32nRFBare MetalFreeRTOSZephyr

Wireless & RF

Wireless systems, ranging, positioning and radio optimization.

UWBRTLS2.4 GHzSub-GHzLoRaTWRTDoA

Industrial Connectivity

Interfaces and protocols connecting embedded devices to larger systems.

CANCANopenUARTSPII²CRS-232RS-485

System Engineering

Architecture, validation, debugging and end-to-end hardware/software integration.

Low PowerRF ValidationJTAG/SWDPythonMATLABEmbedded Linux
03 — Selected Work

Systems built for
the real world.

A large part of my embedded work has focused on building RTLS systems: developing firmware for anchors and tags, working with UWB ranging and localization techniques, and turning the underlying technology into reliable real-world systems.

01

RTLS Platform

Embedded Firmware · Positioning

Developed embedded firmware for RTLS anchor and tag devices, working across low-level drivers, ranging, communication and device operation. Worked with multiple positioning approaches including TWR, TDoA and AoA/PDoA, from experimentation and validation through system integration.

UWBRTLSTWRTDoAAoA / PDoASTM32
02

Collision Warning

Industrial Safety · Real-Time Systems

Worked on a UWB-based forklift–pedestrian safety system involving multi-target ranging, wireless traffic management, distance estimation, target selection and vehicle integration through CANopen.

UWBMulti-Target RangingCANopenEmbedded C
03

Low-Power Anchor

Wireless · Ultra Low Power

Developed a battery-powered positioning platform involving UWB, AoA, Sub-GHz wake-up and ultra-low-power firmware, working from technology evaluation and drivers through radio integration.

UWBAoASub-GHzLow Power
04

Yard Management

GPS · LoRa · IoT

Developed firmware for a battery-powered vehicle and trailer tracking system combining GPS, LoRa communication and adaptive location updates for large outdoor environments.

GPSLoRaLow PowerFirmware
05

Contact Tracing

Proximity · Wireless

Developed a low-power tag-to-tag system using wireless discovery, timing coordination, automatic TWR ranging and proximity detection.

UWBTWRLow PowerProtocol Design
04 — How I Engineer

Start by understanding
the technology.

I don't like starting with code before understanding the problem and the technology behind it. For complex embedded systems, I research, evaluate and experiment before committing to an approach.

01

Technology Research

Research available technologies, components and approaches. Understand their capabilities, limitations and how they fit the requirements of the system.

02

System Evaluation

Evaluate promising technologies on real hardware and verify that the underlying assumptions hold outside the datasheet.

03

Prototype

Turn the selected approach into a working embedded system — from hardware bring-up and drivers to firmware and communication.

04

Experiment & Measure

Test different approaches, collect real-world data and use simulation, visualization and measurement to understand system behavior.

05

Validate

Validate the technology under real operating conditions and iterate until the system is reliable enough for its intended use.

A real example

Building an RTLS
from the ground up.

My work with UWB started with technology research rather than an existing RTLS implementation. I investigated available UWB technologies, evaluated hardware, developed embedded drivers and experimented with different ranging and localization approaches.

The process continued through simulation, real-time visualization, RF experiments and system validation — gradually turning an unfamiliar technology into a working embedded system.

TECHNOLOGY RESEARCH
HARDWARE EVALUATION
DRIVER DEVELOPMENT
RANGING & LOCALIZATION
RF EXPERIMENTS
SYSTEM VALIDATION
05 — Engineering Thinking

I enjoy complex
engineering problems.

I like turning complex problems into systems that can be understood, modeled and built. The part I enjoy most is the point where mathematics becomes engineering.

01

Model

Understand the mathematical foundation behind the problem — what is being measured, what can be inferred, and what assumptions the system depends on.

02

Design

Turn mathematical and theoretical ideas into algorithms, architectures and embedded implementations that can operate under real-world constraints.

03

Solve

Close the gap between theory and reality — dealing with noise, timing, RF conditions, limited resources and imperfect measurements.

FROM THEORY TO SYSTEM
A₁ A₂ x MODEL / ALGORITHM EMBEDDED SYSTEM
MEASUREMENT MODEL ALGORITHM IMPLEMENTATION
06 — Engineering Across Teams

Engineering is
also about people.

Strong engineering is not only about solving the technical problem. It is also about keeping the right people aligned, removing blockers and moving the project forward.

Throughout a project, I communicate with the relevant teams and stakeholders at each phase — from technical discussions and requirements through implementation, validation and delivery. I make dependencies visible, coordinate the next steps, and work through obstacles with the people who can help resolve them.

I also care about planning. Breaking a complex project into concrete steps, understanding dependencies, estimating what needs to happen next and keeping progress aligned with the timeline is part of how I turn engineering work into predictable delivery.

01ALIGNRequirements & stakeholders
02COORDINATEDependencies & decisions
03UNBLOCKProblems & cross-team work
04DELIVERPlan & execution
07 — Experience

From firmware
to architecture.

JAN 2025 — PRESENT

Embedded Systems Architect

Litum Technologies · İzmir

Leading embedded software architecture across real-time connected devices, from firmware and driver design through integration, validation and production deployment.

JAN 2024 — JAN 2025

Sr. Expert Embedded Systems Engineer

Litum Technologies

Worked across embedded firmware, wireless communication and system integration, taking increasing responsibility for system-level technical decisions and architecture.

MAR 2021 — JAN 2024

Sr. Embedded Software Engineer

Litum Technologies

Developed and optimized embedded software for wireless and RTLS-based industrial devices, working across firmware, ranging, communication and real-world system behavior.

JAN 2020 — MAR 2021

Embedded Software Engineer

Litum Technologies

Built a strong foundation in low-level firmware, device drivers, UWB systems and hardware/software integration, contributing from early technology work through working embedded systems.

JUN 2019 — JAN 2020

Software Developer

Ericsson Research & Development

Contributed to IoT platform development, backend services and device connectivity using Java, Python, MQTT and CoAP.

NOV 2017 — JUN 2019

Embedded Software Engineer

Litum Technologies · İzmir

Contributed to the introduction and evaluation of UWB technology for real-time location systems, developing embedded UWB devices and low-level firmware components. Researched, implemented and validated TWR and TDoA positioning techniques for RTLS applications.

2012 — 2017

Electronics Instructor

Private Manisa Organized Industrial Zone Technical High School

Technical education in microcontrollers, digital and industrial electronics, PLC programming and automation systems.

08 — Research

Research meets production.

My research work focuses on embedded real-time systems, UWB and RTLS — areas closely connected to my practical engineering work.

2026

An Embedded Mesh Network Routing Architecture For Industrial Environments

2026

Adaptive Ranging Management for Ultra Wide Band-Based Industrial Collision Avoidance Systems

2026

Evaluation of Communication and Localization Performance in Wearable Health Applications Based on Bluetooth Low Energy 6.0

2022

A New Algorithm Design Suitable for Real-Time Working in Embedded Systems for Increasing Measurement Performance in UWB-Based Collision Avoidance Systems for Smart Factories

2019

Increasing Location Precision with Evolutionary Development of Real-Time Location System Technologies