Arbi Kullakshi
Tirana,Albania
Summary
Full Stack Engineer specializing in architecting and shipping production-ready systems end-to-end. I build high-performance React and Next.js applications and React Native mobile apps backed by scalable backend infrastructure and automated CI/CD workflows. I focus on pragmatic architecture, performance, and infrastructure ownership to help teams move fast without accumulating technical debt.
Overview
5
5
years of professional experience
Work History
Full Stack Engineer
zennit
01.2024 - Current
- Developed high-performance React and Next.js web applications and React Native mobile apps, delivering seamless integration with real-time backend services.
- Designed and automated CI/CD pipelines and containerized deployments using Docker, Traefik, and GitHub/GitLab CI.
- Architected backend infrastructure from scratch, defining system structure, deployment workflows, and scalability strategy.
- Led backend system design and implementation for production SaaS platforms, ensuring reliability and performance for real users in high-availability environments.
- Designed and implemented a custom authentication and identity system supporting multi-provider OAuth, MFA, security keys, and single-use password flows.
- Built multi-organization user model with profile-based relationships and custom ABAC permission management, enhancing access control and user experience.
- Implemented device-level remote session management and secure session invalidation.
Backend Developer
Hire A Loo
01.2025 - 01.2026
- Implemented backend APIs and integrated full-text search using Laravel Scout with Typesense.
- Ensured synchronization between database models and search indexing workflows, optimizing data retrieval and search accuracy.
- Refactored data models and business logic, ensuring alignment with updated system structure for improved performance.
- Facilitated migration of legacy backend system to redesigned architecture, enhancing system reliability and maintainability.
Full Stack Developer
Clickservice GmbH
01.2023 - 01.2024
- Built Django backend services with optimized PostgreSQL queries to support scalable application performance.
- Improved performance through direct SQL query tuning beyond ORM abstractions.
- Integrated third-party APIs and automated reporting workflows to streamline data processing.
- Developed production-ready frontends using React and TypeScript to enhance user experience.
Mobile Developer
Vodafone Albania
01.2022 - 12.2022
- Developed and maintained React Native applications for iOS and Android, enhancing user experience across platforms.
- Integrated REST APIs and WebSocket connections to enable real-time features, improving application responsiveness.
- Implemented secure authentication mechanisms and automated deployment workflows, streamlining release processes.
Junior Frontend Developer
EnRedYAte
01.2021 - 12.2021
- Built responsive user interfaces using CSS and SCSS, improving accessibility across devices.
- Collaborated with designers to create user-friendly interfaces and experiences.
- Developed and maintained WordPress platforms with custom React components to enhance user experience.
- Implemented code reviews to ensure quality and maintainability of projects.
Education
Bachelor of Science - Informatic Engineering
01-2026
ICT Vocational Degree -
01-2023
Skills
- Laravel and Django
- React and Nextjs
- TypeScript and React Native
- PostgreSQL and Redis
- Typesense and Docker
- GitHub Actions and GitLab CI
- Traefik and Nginx
- REST APIs and OAuth
- MFA and ABAC
- Microservices architecture
- RESTful API integration
- Problem analysis
- Agile methodologies
- Database management
- Full stack development
Core Stack
Laravel, Django, Convex, React, Next.js, TypeScript, React Native, PostgreSQL, Redis, Typesense, Docker, GitHub Actions, GitLab CI, Traefik, Nginx, REST APIs, OAuth, MFA, ABAC
Languages
Albanian
Native
Native
English
Proficient (C2)
C2
German
Intermediate (B1)
B1
Timeline
Backend Developer - Hire A Loo
01.2025 - 01.2026
Full Stack Engineer - zennit
01.2024 - Current
Full Stack Developer - Clickservice GmbH
01.2023 - 01.2024
Mobile Developer - Vodafone Albania
01.2022 - 12.2022
Junior Frontend Developer - EnRedYAte
01.2021 - 12.2021
European University of Tirana - Bachelor of Science, Informatic Engineering
Hermann Gmeiner High School - ICT Vocational Degree,