tü.Let’s talk

TUNCAY ÜNAL / SOFTWARE ENGINEER

SELECTED WORK · 2023—2026

Complex systems.
Considered
experiences.

I build the systems behind the interface.
And the interactions that bring them to life.

Backend & full-stack · AI-enabled applications · Real-time 3D

Explore my work
FIG. 01 / A SYSTEM IN MOTION
Connected layers of a software system: interface, services, and dataINTERFACESERVICESDATA
FROM INTERACTION TO INFRASTRUCTURE

Software engineering,
with a human perspective.

WORK ACROSSLufthansa TechnikFraunhofer CML
SCROLL TO EXPLORE

01 SELECTED WORK

Different domains.
The same curiosity.

From a webhook’s first request to a learner’s next step.
A selection of things I’ve built and the decisions behind them.

FOUR PERSPECTIVES
ON ENGINEERING
01 / BACKEND & DISTRIBUTED SYSTEMSIn development

OpsReplay↗

See what changed before production broke.

A release and incident intelligence product for small engineering teams. The implemented core turns GitHub push webhooks into chronological repository timelines, preserving where every event came from.

GITHUB PUSH → TIMELINEArchitecture explorer
01 / VERIFY

Verify the GitHub signature before accepting the webhook. A unique delivery ID makes retries safe.

IMPLEMENTED FLOW · INSPECT EACH STAGE
9 API endpoints30+ automated API tests2 background processes
View implementation Visit product site

Python / FastAPI / PostgreSQL / AWS SQS / React / TypeScript

More integrations, incident workflows and evidence-backed postmortems are in development.

02 / FULL-STACK PRODUCT ENGINEERINGPrototype

A clearer
calendar.

Patient Appointment Scheduler

A full-stack scheduling prototype with month, week and list views. Relational queries keep appointments, patients and categories connected. URL-based state keeps the current view and filters intact across reloads.

THE ENGINEERING DETAIL

Three REST mutation operations, seven validated request fields, and privileged Supabase writes kept on the server.

Open the live scheduler Read the source
APPOINTMENTSOne week. In focus.
Mon
Tue
Wed
Thu
Fri
9:00
10:00
11:00

5 sample appointments · Select one to inspect

Next.js / React / TypeScript / Supabase / TanStack Query / Zod

Interactive preview · Sample data

03 / AI, INTERACTION & RESEARCHLufthansa Technik · Master’s thesis

The right information.
At the right moment.

AI-supported cabin safety learning

A real-time VR learning system combining speech recognition, conversational tutoring, speech synthesis and visual cues. I built task progression, evaluation and recovery, then studied how progressively revealing a concept map changed the experience.

Read the research summary in my CV
PROGRESSIVE DISCLOSURE
Learning sectionConversational guidanceVisual cuesConcept mappingEvaluationTelemetryA little less at once. More when it’s needed.
ILLUSTRATION OF THE INTERACTION PRINCIPLE
+19.38pts

Higher mean System Usability Scale score
with progressive disclosure versus full visibility

24study participants
4,700+telemetry events
9instructional sections

Unity / C# / OpenAI integration / JSONL & CSV telemetry / HCI

Study result · 2 concept-map construction tasks

04 / REAL-TIME 3D & WEBARFraunhofer CML
SPATIAL COORDINATE LABInteractive 3D
YXZLOCAL SPACE
MARKER → LOCAL SPACE → MODEL

An illustration of marker-relative positioning. No camera required.

Software, beyond
the screen.

Interactive systems for applied research

At Fraunhofer CML, I developed and optimised Unity/C# applications for maritime and robotics R&D. My browser-based WebAR viewer connects camera access, image tracking and interactive 3D presentation.

Printed markers and business cards become anchors for a digital model in the physical world.

Inspect the WebAR build

Unity / C# / Image tracking / WebAR / Real-time 3D

The coordinate lab illustrates the spatial principle.

02 EXPERIENCE

Built in
good company.

JAN — AUG 2026

Lufthansa Technik

Software Engineer, AI Training SystemsMaster’s thesis · Hamburg

Built and evaluated an AI-supported learning system for cabin fire-and-smoke procedures. Connected conversational interaction, concept-map tasks and detailed telemetry.

↗
SEP — NOV 2025

Lufthansa Technik

Software Engineer InternHamburg

Took internal VR training from proof of concept into deployment and trainee use. Developed reusable VR Builder components, localised the experience and supported headset testing.

02
NOV 2023 — FEB 2025

Fraunhofer CML

Software EngineerHamburg

Developed Unity/C# real-time applications for maritime and robotics research, including a browser-based WebAR model viewer with image tracking.

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03 THE PERSON BEHIND THE CODE

A systems mindset.
A human perspective.

I’m Tuncay, a software engineer with a background in computer science and human-computer interaction.

I’m interested in both sides of a system: how it holds together underneath, and how it makes sense to the person using it. That’s taken me from aviation training and maritime research to full-stack applications and event-driven backends.

Download my résumé

Tools follow the problem.

CAPABILITIES / EVIDENCE
01

Backend & data

Reliable event flows. Clear contracts.

Python · FastAPI · PostgreSQL · SQLAlchemy · REST APIs

OpsReplay 02

Full-stack products

From data relationships to the details of an interface.

TypeScript · React · Next.js · Supabase

Appointment Scheduler 03

AI & interaction

Intelligent systems with the human in view.

OpenAI integration · Conversational interaction · HCI

AI-supported learning 04

Real-time & delivery

Interactive environments. Repeatable deployments.

Unity · C# · WebAR · AWS SQS · Docker · Terraform · Git

Spatial systems

EDUCATION

Foundations
for the work.

2023 — 2026

MSc Computer Science

University of Hamburg

2020 — 2023

BSc Human-Computer Interaction

University of Hamburg

German · NativeEnglish · C2Hamburg, Germany

04 WHAT’S NEXT?

Have a system to build
or a problem worth solving?

Let’s make
it work.

tuncayunal@hotmail.de
LinkedIn GitHub Résumé

Open to software engineering opportunities · UK Skilled Worker sponsorship required