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2026 — Portfolio Ankara, Türkiye
Engineer × Designer Available for opportunities

Buse Çelik.

[01] _

Architecting scalable systems. Crafting seamless experiences. Full-stack engineer bridging backend depth with frontend finesse.

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Full-Stack Engineer• UI/UX Designer• AI Integration• React · Next.js• Spring Boot• React Native• Available 2026• Full-Stack Engineer• UI/UX Designer• AI Integration• React · Next.js• Spring Boot• React Native• Available 2026•
<about>

The Hybrid Identity

Where architectural engineering precision meets pixel-perfect creative vision.

01

The Engine

Backend & Architecture

Building the invisible infrastructure that powers everything. Microservices, security layers, and data pipelines engineered for scale.

Java / Spring Boot Python / Django Node.js PostgreSQL Microservices Keycloak / OIDC WebSockets Apache Airflow Docker / K8s AWS (EC2, S3, RDS) CI/CD (GitLab/GitHub)
$ deploy --env production --scale 3
02

The Interface

Frontend & Mobile

Translating Figma visions into high-performance, pixel-perfect experiences. From responsive web apps to cross-platform mobile products.

React / Next.js React Native / Expo TypeScript Flutter Redux / RTK Query Tailwind CSS HTML5 / CSS3 Figma UI/UX Design Mobile-First Design
$ npx expo start --ios --android
0+ Years Experience
0+ Projects Delivered
0+ Companies
0+ Certifications
<experience>

Professional Journey

From security analytics to startup product development — a trajectory of increasing scope and impact.

Software Engineer

Databoss Security & Analytics A.Ş.
  • Built an enterprise LLM assistant with React, TypeScript and Chainlit on a LangGraph multi-agent RAG backend — voice input, streaming audio, guided tours and help-desk integration
  • Embedded the assistant into surveillance and internal platforms over Socket.IO / REST for contextual access to product data
  • Built a RAG document-ingestion pipeline with NestJS, PostgreSQL, Redis and MinIO — real-time progress, failure recovery and self-repair jobs
  • Unified seven AI services (OCR, translation, summarisation, STT/TTS, content generation) in a bilingual React/MUI interface
  • Designed a runtime multi-tenant branding system (Docker + Nginx injection) so a single image serves per-customer themes, logos, legal notices and feature flags
  • Developed a drone command-and-control dashboard (React, MUI, Socket.IO) with live telemetry, mission/waypoint planning, target tracking and video streams
  • Delivered full-stack features for a video-surveillance platform using MapLibre/Leaflet, Spring Boot, Oracle and Janus WebRTC, incl. MGRS mapping
  • Owned the front end and contributed Spring Boot / Java 21 services for a predictive-analytics platform with GIS scenario analysis and Apache Airflow pipelines
  • Secured React, NestJS and Spring Boot apps with Keycloak (OIDC, OAuth2/JWT, UMA); tuned PostgreSQL on high-volume datasets
  • Shipped containerised services via GitLab CI, Harbor and Kubernetes; delivered product demos and technical walkthroughs to customers and stakeholders
ReactTypeScriptNestJSSpring BootLangGraph / RAGSocket.IOKeycloakPostgreSQLDockerK8s

Software Engineer

Soulmate Project — Startup
  • Leading end-to-end architecture for a cross-platform mobile app using React Native & Expo
  • Developed AI-integrated chat modules and matchmaking algorithms with Python (Django REST)
  • Translating Figma design systems into pixel-perfect, high-performance UI components
  • Implemented Firebase services (Auth, Firestore, Cloud Functions) for real-time data
React NativeExpoDjangoWebSocketsFirebaseAI/ML

Software Engineer

SippsHub — sipsshub.com
  • Designed full-stack responsive web application using React (TypeScript) and Node.js/PostgreSQL
  • Led product optimization for backend query efficiency and frontend web vitals
  • Developed secure RESTful APIs with integrated data validation
ReactTypeScriptNode.jsPostgreSQLREST APIs

Frontend Developer

Melon (Startup) — mellontech.com.tr
  • Developed core mobile UI components using React Native with high-fidelity animations
  • Optimized state management using Redux Toolkit and RTK Query
  • Agile collaboration iterating on product features based on user feedback
React NativeRedux ToolkitRTK QueryAgile

Frontend Developer

FintelaAI — AI-Powered Financial Assistant
  • Built a responsive web app using React.js
  • Developed clean, reusable UI components with API integration
React.jsAPI IntegrationUI Components

Frontend Developer

iWebsa — Remote
  • Converted Figma designs into responsive, pixel-perfect frontend components
  • Ensured cross-browser compatibility and mobile-first responsive layouts
ReactFigmaResponsive DesignCSS3

UI/UX Designer

Kloudser Technologies — Freelance
  • Designed a complete web application UI/UX for a cybersecurity firm using Figma
  • Created high-fidelity wireframes, interactive prototypes, and responsive layouts
  • Focused on user-centered design principles to enhance usability and visual coherence
  • Collaborated with stakeholders to translate business requirements into effective UI components
FigmaUI/UX DesignWireframingPrototypingCybersecurity

Social Media Content Creator & Graphic Designer

Databoss Security & Analytics A.Ş.
  • Designed and managed the company's LinkedIn-based visual content strategy
  • Produced branded visuals including posters, brochures, banners, business cards, and videos
  • Created corporate business card designs aligned with brand identity guidelines
Graphic DesignFigmaLinkedInBrand IdentityBusiness CardsVideo
<projects>

Featured Work

Products and platforms I've designed, built, and shipped.

empatigame.app
Empati Game Start Screen
empatigame.app/lobby
Empati Game Lobby
Full-Stack • Multiplayer

Empati Game

A Kahoot-style real-time multiplayer word game where players try to predict what others will write for a given topic. A main screen (TV/computer) displays the game state while players interact via their mobile devices.

Next.js 15TypeScriptSocket.IORedisTailwind CSSZustandTurborepopnpm
Architecture
Next.js App → Socket.IO Server → Shared Types → Turborepo
Soulmate App
Startup • Founder

Soulmate

Cross-platform dating app for iOS and Android featuring AI-driven matchmaking algorithms, real-time chat with WebSockets, and Firebase-powered authentication. End-to-end architecture from Figma design systems to production deployment.

React NativeExpoDjango RESTWebSocketsFirebaseAI/MLFigma
Architecture
React Native → Django API → PostgreSQL → Firebase
influencehub.club
InfluenceHub Website
InfluenceHub Mobile App
Senior Project • Founder • Cross-Platform

InfluenceHub

Full-scale AI-based recommendation platform connecting brands with influencers and event organizers with performers. Web and mobile applications with AI matchmaking model, Docker deployment, and complete UI/UX design in Figma.

ReactReact NativeTypeScriptAI ModelDockerFigma
Visit Site
sipsshub.com
SippsHub Website
Full-Stack

SippsHub

Full-stack responsive web application with React/TypeScript frontend and Node.js/PostgreSQL backend. Focused on backend query efficiency and frontend web vitals optimization.

ReactTypeScriptNode.jsPostgreSQL
Visit Site
ssisaret.com
S.S. Isaret Website
Frontend • Corporate

S.S. İşaret

Corporate website for a real estate development company. Modern, responsive design showcasing property projects with immersive visuals, interactive layouts, and a professional web presence.

ReactResponsive DesignUI/UXCorporate Web
Visit Site
fintelaai.com
FintelaAI Website
Frontend • AI

FintelaAI

AI-powered financial assistant web application. Responsive React.js interface with clean, reusable components and dynamic API-driven data rendering.

React.jsAI IntegrationREST APIs
Visit Site
pteminhatipoglu.vercel.app
Emin Hatipoğlu PT Website
Frontend • Freelance

Emin Hatipoğlu PT

Professional portfolio website for a personal trainer based in Ankara. Modern dark-themed design with animated backgrounds, bilingual support (TR/EN), client transformations gallery, certifications showcase, and WhatsApp integration for easy client outreach.

HTML5CSS3JavaScriptResponsive Designi18n
Visit Site
Fintech • Flutter • Creator Platform

Finansçe

Subscription-based finance content app built with Flutter and Riverpod in a Melos monorepo following Clean Architecture. Firebase Auth, Firestore, Cloud Functions and Messaging power accounts, content and push. LiveKit voice rooms use server-minted, short-lived tokens enforcing a creator/premium speaker policy; the API runs on Cloudflare Workers.

FlutterRiverpodFirebaseLiveKitCloudflare WorkersMelos
Mobile • Social • Running

Pacer

Social app for local running teams built with Expo Router and Supabase. Geo-located events are stored in PostGIS and team data is secured with Row Level Security. Features RSVPs, team chat, check-ins, Strava OAuth via a Supabase Edge Function, and shareable story cards for Instagram and WhatsApp.

React NativeExpo RouterSupabasePostGISEdge FunctionsStrava API
Mobile • Full-Stack • Recommendation

Curator (FavSpot)

One-tap venue recommender built with React Native and a Node.js/Express backend. Integrates the Google Places API with rating-filtered selection, no-repeat logic and response caching to cut API cost. Visit history is stored locally with deep links into native Maps; marketing site published on Vercel.

React NativeNode.jsExpressGoogle Places APICachingVercel
aytarglobal.com
Frontend • Corporate • Freelance

Aytar Global

Corporate website built with React and Vite featuring scroll-driven counters, a custom SVG world map and a fully responsive layout.

ReactViteSVGResponsive Design
Visit Site
bahtinurcelik.art
Frontend • Portfolio • Next.js

Bahtinur Çelik Art

Artist portfolio built with Next.js 16 featuring scroll-linked parallax, an image-first gallery and complete SEO / Open Graph metadata.

Next.js 16ReactSEOParallax
Visit Site
nocciola
Frontend • Brand • i18n

Nocciola

Pistachio-cream brand site built with React featuring EN/TR internationalisation, motion animations and downloadable PDF pitch decks.

Reacti18nMotionPDF
melon
Startup • Tablet • Hospitality

Melon

Tablet application designed for the hospitality industry, built with React Native and Expo Go for hotel in-room guest experiences. Developed high-fidelity UI components with fluid animations and optimized state management using Redux Toolkit and RTK Query. Also built the promotional website using React with TypeScript.

React NativeExpo GoReactTypeScriptRedux ToolkitRTK Query
Visit Site
kloudser.com
Kloudser Technologies
UI/UX • Cybersecurity

Kloudser Technologies

Complete web application UI/UX designed for a cybersecurity firm using Figma. Created high-fidelity wireframes, interactive prototypes, and responsive layouts with a focus on user-centered design principles to enhance usability and visual coherence.

FigmaUI/UX DesignWireframingPrototypingResponsive
iwebsa.com
Frontend • Remote

iWebsa

Converted Figma designs into responsive, pixel-perfect frontend components. Ensured cross-browser compatibility and implemented mobile-first responsive layouts with clean, semantic code architecture.

ReactFigmaResponsive DesignCSS3Mobile-First

Poster Designs

Visual content and poster designs crafted for brands and campaigns.

Poster Preview
<skills>

Tech Arsenal

The tools and technologies I work with daily.

buse@portfolio ~ skills
$ cat skills.json 
{
  "languages": ["Java", "Python", "TypeScript", "Swift", "Dart", "HTML5/CSS3"],
  "frontend": ["React", "Next.js", "React Native", "Expo", "Flutter", "Redux/RTK Query", "Tailwind"],
  "backend": ["Spring Boot", "Django", "Node.js", "REST APIs", "WebSockets", "Keycloak", "Microservices"],
  "database": ["PostgreSQL", "Firebase", "Redis"],
  "devops": ["Docker", "Kubernetes", "GitLab/GitHub CI/CD", "AWS (EC2,S3,RDS)", "Nginx"],
  "ai_data": ["Apache Airflow", "OpenAI API", "Pandas", "NumPy", "Data Preprocessing"],
  "design": ["Figma", "UI/UX", "Graphic Design", "Business Cards"],
  "tools": ["Git", "Jira", "YouTrack", "Agile/Scrum", "Linux"]
}
$ █

Languages

Java
Python
TypeScript
Swift

Frontend & Mobile

React / Next.js
React Native
Flutter
Tailwind CSS

Backend & Data

Spring Boot
PostgreSQL
Django
Node.js
Keycloak/IAM
Firebase

DevOps & Cloud

Docker / K8s
GitLab / GitHub CI/CD
AWS (EC2, S3, RDS)
Linux / Nginx
Crafted with precision• Engineering × Design• Ankara → World• buse.celik.dev• Open for work 2026• Crafted with precision• Engineering × Design• Ankara → World• buse.celik.dev• Open for work 2026•
<education>

Education & Certifications

B.Sc. in Computer Technology and Information Systems

Bilkent University, Ankara Feb 2021 — June 2025
GPA: 3.06 / 4.00 High Honor & Honor Certificates
English — Advanced (IELTS 6.5)
Board Member — Bilkent Karting Society (2022–2023), Led marketing & visual content
★ Java (Intermediate-Advanced) — TÜBİTAK
★ Spring Framework — TÜBİTAK
★ Microservices Architectures — TÜBİTAK
★ UX & Usability — TÜBİTAK
★ CCNAv7: Switching & Routing — Cisco
★ CCNAv7: Intro to Networks — Cisco
★ PCAP — Python Essentials — Cisco
★ Figma / Mockup Design — TÜBİTAK

Let's build
something.

Open to new opportunities, collaborations, and interesting conversations.

Email celikb292@icloud.com
LinkedIn busecelik
GitHub buseclk12
Phone +90 (534) 273 57 83
Ankara, Türkiye