Senior Fullstack Lead
Isen Beqiri
Senior frontend lead specialising in scalable React and Next.js architectures. Twenty-plus years building products, from startup MVPs to enterprise platforms. Currently bootstrapping an AI-powered running training platform.
- Stockholm, Sweden
- +46 79 337 85 47
- hello@tagisen.com
- linkedin.com/in/tagisen
- tagisen.com
Experience
-
Founder
Vrapidavrapida.com
- Founded and independently built a full-stack running training platform from concept to production: architecture, every feature, and ongoing operation as a solo developer.
- Built a scalable Next.js and TypeScript monorepo with Turborepo, sharing type-safe schemas between frontend and backend.
- Designed a containerised REST API with Hono and Node.js, deployed on Railway with Docker, backed by an edge database on Turso for low latency worldwide.
- Developed AI-powered workout generation on the OpenAI API: adaptive training that personalises sessions from progress, experience level and completion history.
- Implemented the full payment lifecycle with Stripe, including subscriptions, webhooks and secure authentication flows.
- Set up end-to-end testing with Playwright and automated CI/CD on Vercel and Railway, covering deployment, monitoring and infrastructure.
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Developer Experience Consultant
LegoraStockholm
- Modularised the Drizzle ORM schema into twelve-plus isolated domain exports, markedly improving TypeScript type-checking and IDE responsiveness across a 259-project Nx monorepo.
- Migrated database queries from the relational query builder to the select API, with a test suite verifying every rewritten query.
- Built automated enforcement tooling so the modular schema architecture cannot regress.
- Advised on Nx Cloud remote caching and the introduction of Nx's self-healing cache to cut CI build times.
- Contributed frontend performance work and UI fixes in a React and Next.js legal-tech application.
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Frontend & UX Developer
Creator StudioStockholm
- Developed a full-stack web application in Next.js, React and TypeScript for product creation and order management.
- Designed and implemented a unified Material UI design system, standardising development across teams and shortening project timelines.
- Built and maintained Python backend services integrated with the frontend applications.
- Optimised CI/CD pipelines on CircleCI with automated testing and deployment.
- Introduced a backend-for-frontend architecture with cross-functional teams, improving API performance and developer productivity.
- Kept API integrations type-safe with TypeScript clients generated from OpenAPI specifications.
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Frontend Lead Developer
VattenfallSolna
- Introduced a robust code versioning system, enabling faster and more frequent deployments and reducing time to production.
- Eliminated downtime during hot-fix deployments, improving service continuity.
- Worked with the Customer Solutions team to introduce web-based services, significantly reducing customer service calls.
- Designed a unified Angular framework and design system standardising development across departments.
- Developed and optimised CI/CD pipelines in Azure.
- Oversaw four teams' adherence to Vattenfall's design, performance and security standards.
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Tech Lead
Vattenfall InChargeSolna
- Led the technical setup and development of the first InCharge website, using cost-effective CMS solutions to shorten implementation time.
- Delivered on time and under budget, contributing to increased brand visibility.
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Frontend Lead
QbrickStockholm
- Led the development of a web-based video editor on AngularJS, letting users edit video directly in the browser.
- Implemented advanced video and audio editing with the backend team, including frame manipulation and captioning.
Earlier
-
Senior Frontend
Anthill AgencyCopenhagen
Contributed to a slideshow management framework that improved presentation efficiency and product usability for end clients.
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Full Stack Developer
TILF ABMalmö
Built popular website features that raised user engagement, and an automated licence key system that removed manual overhead.
Education
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Master in Computer Science
Lund UniversitySweden
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Bachelor in Computer Science and Linguistics
SEE UniversityNorth Macedonia
Languages
- English
- Fluent
- Swedish
- Fluent
- Albanian
- Native
- Macedonian
- Fluent