PLAYER SELECT
UMEJR
DEMIR
CLASS:
I build and ship products end-to-end — from backends and databases to web, mobile and the infrastructure that runs them.
GITHUB
29
REPOS
1038
CONTRIB
STREAK
18 DAYS
TOP TECHTypeScript · Go · Dart
CONTRIBUTIONS
Last 20 weeksLESSMORE
github.com/demac44SELECT STAGE
8 CLEAREDVIEW
◀ ▶ USE ARROW KEYS OR BACK / FWD BUTTONS TO BROWSE
GoBosnia Mobile Appabout:gobosnia-mobile
GoBosnia Mobile App
A curated guide to places, events, tours and routes across Bosnia & Herzegovina.
AVAILABLE ON GOOGLE PLAY & APP STORE
STAGE 01/08★★★LIVE
PLAYER PROFILE
LVL 05 · SARAJEVO, BA
5+
YEARS
10+
SHIPPED PROJECTS
SARAJEVO
BASE
QUEST LOG
3 QUESTSLVL 03Plamen
ACTIVE
- Design, build and ship full products end-to-end for clients and in-house — across web, mobile and cloud infrastructure.
- Delivered GoBosnia, a tourism platform with a Go / PostGIS backend, a Next.js dashboard and website, and a Flutter app released to Google Play and the App Store.
- Built Dockmaster, a cross-platform Go + Electron desktop app with an automated Windows / macOS / Linux release pipeline and auto-update.
- Own the full delivery lifecycle: architecture, implementation, GitHub Actions CI/CD, and production deployment.
GoTypeScriptFlutterNext.jsPostgreSQL/PostGISDockerGHCRFirebaseGitHub Actions
LVL 02Pickleball.com
ACTIVE
- Build and maintain front-end features in Next.js and React, translating product requirements into functional UI.
- Collaborate directly with design and product to scope and refine features from prototype through release.
- Improve front-end performance, accessibility, and component reusability across the platform.
Next.jsReactStripe
LVL 01Rehype GmbH
CLEARED
- Architected and deployed a multi-seller e-commerce and trade-in platform with shipping integrations and automated customer notifications.
- Designed a high-concurrency microservices architecture in NestJS and Go, using RabbitMQ for async messaging and Redis for distributed caching.
- Ran end-to-end DevOps: containerized services on Docker and Kubernetes with custom GitLab CI/CD pipelines.
- Optimized PostgreSQL data models, improving query performance and integrity for large-scale inventory.
NestJSTypeScriptPostgreSQLRabbitMQRedisDockerKubernetesNext.jsReact
ACHIEVEMENTS
2 / 2 UNLOCKEDDEGREE
BSc. in Software Engineering (240 ECTS)
Amman Arab University · Amman, Jordan
2020 - 2024
INVENTORY
6 SLOTSLANGUAGES
Languages
GoTypeScriptJavaScriptDartPythonSQL
FRONT-END
Front-end & Mobile
ReactNext.jsElectronFlutterAngularTailwind CSS
BACK-END
Backend
Node.jsNestJSREST / JSON-RPCRabbitMQRedisMicroservices
DATABASES
Databases & Storage
PostgreSQL / PostGISMongoDBRedissqlcMinIO (S3)
INFRA
Infrastructure & DevOps
DockerKubernetesAWSTerraformAnsibleLinuxNginxGHCRCloudflare R2Vercel
CI/CD
CI/CD & Tooling
GitHub ActionsGitLab CIGitFirebaseJestCypress
INSERT COIN
1 CREDITI’m always open to discussing new projects and opportunities, or just connecting! Feel free to reach out on any of the following: