Fullstack Developer

Hello, I'm Thomas.

Freelance fullstack developer and tech lead with over five years of experience building modern web applications with Vue, TypeScript and Node.
I own architecture, tooling and CI/CD, integrate AI agents into the development workflow, and keep teams fast and productive through code reviews, test-driven development and clear standards. My bar: clean, maintainable code that runs reliably in production.

Thomas Lallinger

Thomas Lallinger

Fullstack Developer

Madeira, Portugal

German (Native speaker)
English (Fluent)
Thomas Lallinger

Experience

  • - Present

    Tech Lead (Freelance)@ Lumaserv

    Coblenz, DE - Remote

    Industry:

    IT Services

    Responsibilities:

    • Technical lead for the development of applications for public sector, with a strong focus on code quality, scalability, security, and performance.
    • Designed and established AI-agent-assisted development workflows, integrating coding agents into the daily engineering process while keeping quality gates and review standards intact.
    • Owned tooling, CI/CD pipelines, and the developer platform (GitLab, Docker, Vite, pnpm, Bun) to shorten feedback loops and keep deployments reliable and reproducible.
    • Drove test-driven development and raised test coverage across frontend and backend, making regressions visible early and refactorings safe.
    • Conducted detailed, in-depth code reviews and defined coding standards and architectural guidelines for the team.
    • Identified and remediated security and performance issues across the stack, from database queries to the Vue frontend.

    Achievements:

    • Smooth go-live of the application without critical issues, backed by a stable CI/CD pipeline, high test coverage and consistent code reviews.
    • Built the CI/CD pipeline and developer tooling for the team, turning builds, tests and deployments into a repeatable, automated process.
    • Introduced test-driven development as the team standard and raised test coverage of the core applications.
    • TypeScript
    • JavaScript
    • VueJs
    • PrimeVue
    • Strapi
    • Node
    • Bun
    • pnpm
    • Vite
    • MySQL
    • Docker
    • GitLab
  • -

    Fullstack Developer (Contractor)@ Netfonds AG

    Hamburg, DE - Remote

    Industry:

    Fintech

    Responsibilities:

    • Continued as a freelance fullstack developer after my permanent employment, developing and maintaining microservices using Java and Dropwizard as well as Vue-based frontends.
    • Created reusable components to ensure consistency across various projects.
    • Mentored junior developers and new team members during onboarding, providing hands-on guidance and continuous support.
    • Conducted code reviews, offering constructive feedback and ensuring adherence to coding standards.
    • Responsible for frontend tooling and its configurations.
    • Collaborated closely with IT Security to identify, assess, and promptly remediate code vulnerabilities using SonarQube.

    Achievements:

    • Developed and implemented a microfrontend architecture using Lerna to improve modularity and scalability, enabling the simultaneous use of different frameworks and versions.
    • Successfully led the integration of new technologies and major refactorings, resulting in a more than 30% reduction in build time, and increased developer experience and productivity.
    • TypeScript
    • VueJs
    • Tailwind
    • JavaScript
    • Vite
    • Lerna
    • vuetify
    • Node
    • SQL
    • Java
    • GitHub
    • Git
    • Jira
  • -

    Fullstack Developer@ Netfonds AG

    Hamburg, DE - Remote

    Industry:

    Fintech

    Responsibilities:

    • Developed and maintained microservices using Java and Dropwizard, as well as relational database structures.
    • Created reusable components to ensure consistency across various projects.
    • Mentored junior developers and new team members during onboarding, providing hands-on guidance and continuous support to foster their technical growth and integration into the team.
    • Conducted code reviews, offering constructive feedback and ensuring adherence to coding standards.
    • Responsible for frontend tooling and its configurations.
    • Collaborated closely with IT Security to identify, assess, and promptly remediate code vulnerabilities using SonarQube.
    • TypeScript
    • VueJs
    • Tailwind
    • JavaScript
    • Vite
    • vuetify
    • Node
    • SQL
    • Java
    • GitHub
    • Git
    • Jira

Let's talk.

Got a project, a question or just want to say hi? Drop me a line.