Recommended expert

Piet Althoff

Frontend

Piet Althoff
Cologne, Germany

Experience

Jul 2024 - Sep 2024
3 months

Frontend

Value Finance GmbH

  • Developed a customer-facing application for a team of realtors to manage insurance and financial contracts
  • Provided real-time insights into various insurance products, allowing realtors to manage, compare, and recommend contracts to clients
  • Implemented a complex, reactive SVG visualization that displays key contract metrics for client presentations
  • Worked with Nuxt 3, Tailwind, Google Firebase on the frontend and Node.js, MongoDB, PostgreSQL on the backend
  • Followed Kanban, SCRUMBan, and Scrum methodologies
  • Began learning Rust
Apr 2024 - Jun 2024
3 months

Lead Architect

start.me B.V.

  • Led the update of a large SaaS with several million users from Vue 2 (SPA) to Nuxt 3 (SSR)
  • Coordinated the upgrade process to enhance web performance and maintainability
  • Mentored two nearshore developers on best practices in software development, code quality, UX/UI considerations, and accessibility
  • Initiated and led the development of new interface concepts and widgets to improve user interaction and visual appeal across devices
  • Used AI assists such as GitHub Copilot and GPT 4.5
Jun 2022 - Mar 2023
10 months

Developer

Dumont Media GmbH

  • Successfully relaunched all of Dumont’s major online newspapers (Kölner Stadtanzeiger, Express, Kölnische Rundschau) with Nuxt 3 using layers, Tailwind, Storybook, and Google Search Console
  • Managed business logic including arrangement of teasers
  • Handled all revenue-related issues: ads, ad placements, and ad logic
  • Covered all SEO topics and personalization features, including regionalized news and premium features
  • Implemented all search functionality and interpretation of misleading links
Apr 2022 - May 2022
2 months

Developer

drumcenter.de

  • Relaunched a legacy Magento 1 online shop to Nuxt 2 for over 100k shop items
  • Used heavy Regex to polish item names and correct legacy/transfer errors
  • Improved SEO and site speed significantly, achieving ranking above musicstore.de for “Drum” related search terms
Mar 2022 - Apr 2022
2 months

Developer

Generali Insurance Group

  • Wrote an internal-use script in TypeScript and Node.js that cleans up and summarizes large amounts of customer data from various Excel files
  • Transformed raw data into a unified JSON dataset
Feb 2021 - Present
5 years 1 month

Developer

ENPOLITE - ISEA of RWTH Aachen University

  • Developed a website presenting a Lithium Battery Aging research project using Nuxt 2, Vuetify 2, later migrating to Nuxt 3 and Vuetify 3 on Netlify
  • Made the non-responsive Vega Data Visualization library responsive
  • Implemented lazy loading of multiple large JSON datasets to save bandwidth and improve UX
  • Included hidden pages where researchers can discuss unreleased datasets
Feb 2021 - May 2021
4 months

Developer

Convidera GmbH

  • Developed Web 3.0 UIs for Nitrex Steel Furnaces using Vue 3 and GraphQL
  • Worked with a 0.5 million LOC German legacy code base alongside offshore designers and backend developers
Jun 2020 - Nov 2020
6 months

Developer

Dermanostic GmbH

  • Performed site speed optimization, Webpack pruning, and SEO enhancements using Nuxt 2 and Google Analytics
  • Implemented custom tree shaking for Vue-Bootstrap and broke up pages into lazy components, reducing onload from 1220 ms to 380 ms
  • Achieved #1 rankings in Germany for search terms like "dermatology app", "dermatologist app", and "online dermatologist"
Jun 2017 - Mar 2018
10 months

Developer

Primed Marketing Agency (by Fedor Holz)

  • Scraped and analyzed 2.5 million Instagram accounts daily using a custom Instagram API via Puppeteer
  • Built a botnet used by the European Commission in Vienna
May 2017 - Jun 2017
2 months

UI/UX Consultant

Aponcho

  • Provided UI/UX consultancy for a startup online shop on WordPress and Shopify
  • Enhanced user experience to boost conversion rates, reduce bounce rates, and optimize user funnels
  • Developed solutions for product customization
Jun 2016 - Jun 2023
7 years 1 month

Developer

Phobius VR-Phobia Treatment

  • Optimized UI/UX, conversion funnels, site speed, and SEO for several phobia treatment sites using Nuxt 2 and Google Analytics
  • Achieved #1 position on Google Austria above Wikipedia and supplied some Infobox data from phobius.at
  • Drove 90% of customer acquisition via SEO
  • Served as the first developer of the company
Jun 2013 - Mar 2018
4 years 10 months

Developer

Diplomaps (Own Project)

  • Scraped and analyzed tens of thousands of international diplomatic and economic news daily using Node.js worker threads
  • Presented findings to the Policy Planning Staff of the German Federal Foreign Office in Berlin

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (7 years), Healthcare (7 years), Education (5 years), Energy (5 years), Government and Administration (5 years), and Media and Entertainment (1 year).

Information Technology
Healthcare
Education
Energy
Government and Administration
Media and Entertainment

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (12.5 years), Research and Development (10 years), Marketing (7 years), Business Intelligence (5 years), and Product Development (1.5 years).

Information Technology
Research and Development
Marketing
Business Intelligence
Product Development

Summary

With 8 years of experience as a JavaScript developer, I‘ve focused on Vue and Nuxt for the past 5 years. I‘ve been working with Vue 3 and the Composition API for 3 years. My backend primarily relies on Node servers, and I‘ve recently started learning Rust.

I‘m open-minded and can integrate quickly into new teams. When it comes to coding and technology, I‘m aware and open about my strengths and weaknesses. When I meet like-minded colleagues, we can form very effective teams. I don‘t need a long onboarding process - just a cup of coffee and a friendly team.

Skills

  • Backend: Node.js, Learning Rust
  • Dbs: Mongodb, Postgresql
  • Methodology: Kanban, Scrumban, Scrum
  • Ai-assists: Github Copilot, Gpt 4.5, Midjourney
  • Oss: Linux, Windows
  • Notable: Ui/ux, Conversion Funnels, Inkscape, Adobe Indesign, Fusion 360, Rpi, Arduino, Prusaslicer, Prototyping

Languages

German
Native
English
Advanced

Education

Oct 2011 - Present

University of Vienna

Biology - Genetics · Vienna, Austria

Oct 2010 - Present

FH Jülich

Bio-Technology · Jülich, Germany

Einhard-Gymnasium

Aachen, Germany

Profile

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Last Update
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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Piet based?

Piet is based in Cologne, Germany and prefers 100% remote projects.

What languages does Piet speak?

Piet speaks the following languages: German (Native), English (Advanced).

How many years of experience does Piet have?

Piet has at least 13 years of experience. During this time, Piet has worked in at least 4 different roles and for 12 different companies. The average length of individual experience is 1 year and 1 month. Note that Piet may not have shared all experience and actually has more experience.

What roles would Piet be best suited for?

Based on recent experience, Piet would be well-suited for roles such as: Frontend, Lead Architect, Developer.

What is Piet's latest experience?

Piet's most recent position is Frontend at Value Finance GmbH.

What companies has Piet worked for in recent years?

In recent years, Piet has worked for Value Finance GmbH, start.me B.V., Dumont Media GmbH, drumcenter.de, and Generali Insurance Group.

Which industries is Piet most experienced in?

Piet is most experienced in industries like Information Technology (IT), Healthcare, and Education. Piet also has some experience in Energy, Government and Public Administration, Media, and Entertainment and Publishing.

Which business areas is Piet most experienced in?

Piet is most experienced in business areas like Information Technology (IT), Research and Development (R&D), and Marketing. Piet also has some experience in Business Intelligence and Product Development.

Which industries has Piet worked in recently?

Piet has recently worked in industries like Information Technology (IT), Healthcare, and Education.

Which business areas has Piet worked in recently?

Piet has recently worked in business areas like Information Technology (IT), Marketing, and Research and Development (R&D).

What is Piet's education?

Piet attended University of Vienna for Biology - Genetics.

What is the availability of Piet?

Piet is immediately available full-time for suitable projects.

What is the rate of Piet?

Piet's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.

How to hire Piet?

To hire Piet, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

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Market avg: 760-920 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.