# Where I have worked as a full-stack developer.

Alex Cloudstar, senior full-stack developer (https://alexcloudstar.com/)

Full-stack developer CV: roles, scope and stack, most recent first. Download the full CV as a DOCX file.

CV (DOCX): https://alexcloudstar.com/cv.docx

## Senior Full-Stack Developer, Freelance
2020 – Now | Romania (Remote), clients in Europe and the US

Design and build web apps and SaaS products for clients, from requirements and architecture through deployment and maintenance. E.ON, ING, Omnisource and Makeen were contracts taken through this practice.

- Build AI features and agents with the Claude API and the Vercel AI SDK, including tool calling, retrieval and MCP servers.
- Run cloud infrastructure and delivery on AWS, Vercel, Docker and GitHub Actions, and integrate auth, payments and third-party APIs.
- Write automated tests with Vitest, Jest and Playwright.

Stack: TypeScript, Next.js, NestJS, PostgreSQL, AWS

## Senior Full-Stack Developer, Omnisource Technologies
2023 – 2024 | Romania (Remote)

Contract through my freelance practice. Developed and maintained full-stack features in a fully remote team.

- Took ownership of key application components, leading implementation from design through deployment.
- Reviewed code for the team.

Stack: React, TypeScript, Node.js, PostgreSQL, AWS

## Senior Full-Stack Developer, E.ON Deutschland
2022 – 2023 | Germany (Remote)

Contract through my freelance practice. Built and maintained full-stack features for a large-scale energy platform.

- Worked in an Agile team across planning and delivery, taking ownership of application modules.
- Contributed to architecture decisions.

Stack: React, TypeScript, Node.js, Express, Azure

## Frontend Developer, HCL Technologies
2021 – 2022 | Remote (ING Nederland)

Contract through my freelance practice, delivered via HCL Technologies. Frontend development in an Agile team at ING Nederland, with sprint planning and code reviews.

- Built a reusable UI component library (design system) with React, TypeScript, Storybook and Web Components.

Stack: React, TypeScript, Storybook, Web Components

## Full-Stack Developer, Makeen
2020 – 2021 | Remote, for a US company

Contract through my freelance practice. Lead developer on several B2B and B2C projects, with client placements at Warner Bros. Entertainment and Vyoo.me.

- Warner Bros. Entertainment: JavaScript and full-stack work supporting Firebase-based APIs.
- Vyoo.me: built the web app with React, TypeScript, Styled Components and Storybook, and joined investor meetings.

Stack: React, TypeScript, Node.js, MongoDB, Firebase

## Full-Stack Developer, Streamline VRS
2019 – 2020 | Remote

Full-stack work on vacation rental software.

- Shipped new features and optimized code and page speed.

Stack: PHP, AngularJS

## Full-Stack Developer, Happy Media
2018 – 2019 | Iasi, Romania

Built and maintained client web applications.

- Gathered requirements in client meetings and shipped them end to end.

Stack: PHP, JavaScript, WordPress, CodeIgniter

Available for contract work and senior full-time roles. [Contact](https://alexcloudstar.com/contact/)