Sebastian F.

Senior Frontend Dev / Consultant

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Berlin, Germany

Experience

Dec 2024 - Present
1 year 1 month

Senior Frontend Dev / Consultant

bettermarks.de

  • Developing / Maintaining current modules
  • Asserting the current state of the architecture and implementation
  • Giving guidance for future development
  • Mentoring team members
  • Developing a standard blueprint library for others to follow

Technologies: React, Redux, Jest, Kotlin

Oct 2021 - Dec 2021
3 months

Project Owner - Interim

WMF

  • Overseeing the B2B online shop of WMF
  • Stakeholder and vendor management
  • Technical planning and roadmap development
Dec 2020 - Nov 2024
4 years

Frontend Lead / Architect / Consultant

WMF / GroupeSEB

  • Reimplementation of an IoT Platform (Coffeesmart)
  • Overseeing the cross-team communication
  • Go-to person for all topics concerning front end
  • Code quality oversight and mentoring
  • Development process design for back end and front end
  • Interfacing between business and technical stakeholders
  • Setting up a performance and API testing solution
  • Hiring and team transition
  • Scrum and agile consulting

Technologies: VUE, Webpack, ES6, TypeScript, Azure

Aug 2020 - Dec 2020
5 months

Senior Frontend Developer / Architect

eHealth-Tec

  • Development of several user interfaces for electronic prescriptions

Technologies: React.js, Redux, Webpack, ES6, TypeScript

Jan 2020 - Apr 2020
4 months

Interim Frontend Lead / Architect

Travelcircus.de

  • Set up a new front-end team, including interviews and CV screening
  • Evaluation of the existing codebase
  • Creation of a migration concept
  • Development of a draft for the user self-service portal
  • Team coaching and mentoring
  • Consultation support regarding agile processes
  • Communication interface between CTO and project management

Technologies: React.js, Redux, Webpack, ES6

Aug 2019 - Jan 2020
6 months

Consultant / Architect / Senior Frontend Developer

Ideal Versicherung

  • Creation of a front-end architecture and software design for a self-service portal
  • Scope planning and conceptual work
  • Implementation of the created architecture
  • Mentoring and training existing team members in React and modern JavaScript

Technologies: React.js, Redux, Webpack, ES6, Victory Charts

Apr 2019 - Jul 2019
4 months

Senior Frontend Developer / Architect

Neofonie

  • Reimplementation of a B2B service application for the travel/sourcing market
  • Scope planning and conceptual work
  • Ramp-up phase with focus on maintainability and enterprise grade code
  • Constant communication with the HRS enterprise architect

Technologies: React.js, Redux, Webpack, ES6, API/interface testing, mock data generation

Jun 2018 - Mar 2019
10 months

Senior Frontend Developer / Frontend Architect / Team Captain

HRS Innovation Hub

  • Migration of the hotel.de application to a new tech stack
  • Scope planning and conceptual work
  • Mentoring and hiring
  • Team leadership
  • Communication interface between tech leadership, dev teams, and the product team

Technologies: React.js, Redux, GraphQL, Webpack, ES6, Node.js

Mar 2017 - Jun 2018
1 year 4 months

Senior Frontend Developer / Frontend Architect

Adidas

  • Reimplementation of the B2B order intake system “Click”
  • Conception and implementation of the SPA architecture
  • Concept and implementation of base components and backend services
  • Mentoring and reviewing new team members and five front-end teams

Technologies: React.js, Redux, Webpack, ES6, API design, OpenAPI/BluePrint

Nov 2016 - Feb 2017
4 months

Senior Frontend Developer / Frontend Architect

Bettermarks

  • Concept and architecture for a tech stack migration from ActionScript/Flash to React
  • Implementation of the prototype and MVP
  • Training and mentoring the team
  • Concept for next steps and evaluation of different libraries

Technologies: React.js, Redux, Webpack, PouchDB, ES6, Canvas, SVG

Oct 2015 - Sep 2016
1 year

Product Owner - Clients (iOS, Android, Web, Frontend - Backend)

Immmr

  • Product development and overall project steering
  • Project steering for all client development
  • Team leading for four client development teams (20 people)
  • Development of business requirements
  • Communication interface for CTO/CPO and development teams
  • Mentoring
Feb 2015 - Aug 2015
7 months

Senior Frontend Developer

Immmr

  • Development of a WebRTC-based offline-first communication web client

Technologies: React.js, CouchDB/PouchDB, Webpack, ES6

Oct 2014 - Dec 2014
3 months

Senior Frontend Developer

Moccu

Jun 2014 - Oct 2014
5 months

Senior Frontend Developer

Triad

May 2014 - Jun 2014
2 months

Senior Front-end Developer

Actano

May 2013 - Apr 2014
1 year

Senior Front-end Developer

Deutsche Post e-post

  • Senior front-end development for Epost Safe
Oct 2012 - Apr 2013
7 months

Senior Front-end Developer

Telekom Innovation Labs | Appzonaut

Dec 2011 - Mar 2012
4 months

Senior Front-end Developer

FP Commerce / home24.de

Mar 2011 - Aug 2012
1 year 6 months

Senior Front-end Developer

DDB Tribal Berlin

Nov 2010 - Nov 2011
1 year 1 month

Lead Developer | China Maps Nokia; Senior Web Developer | Volkswagen Car Configurator

AKQA

Jul 2010 - Oct 2010
4 months

Team Lead | Integration Platform

BigPoint

Feb 2010 - May 2010
4 months

Senior Web Developer | Nokia Maps

AKQA

Jan 2006 - Dec 2007
2 years

WebMaster

Yachthafen Residenz Hohe Düne

Jan 2005 - Dec 2005
1 year

Web Developer / Webmaster

IP Knowledge

Jan 2004 - Dec 2004
1 year

Web Developer

Knowledge Solutions

Jan 2003 - Dec 2003
1 year

Team Lead WebDev

Platinum Visions

Jul 1999 - Oct 2001
2 years 4 months

Web Developer

Nets AG

Oct 1998 - Mar 1999
6 months

Web Developer

Amazon.de

Summary

I primarily support customers in implementing software development processes while simultaneously developing products, including tech stack migrations, team building, mentoring, and the development of suitable sustainable architectures, which are the basis of my work.

For most clients, architecture, agile process methodologies, and team management are not limited to the front end, as the required trades are often comprehensive. This also includes data protection, data design, and security concepts.

My customers and I do not see me as a pure workbench but as someone who helps a customer develop software beyond the time of the commitment that is maintainable and understandable and remains manageable along its life cycle. For me, clean code, testing, process methodologies, code style, and the many other components of the rapidly changing software ecosystem are a means to and not an end in themselves to achieve this goal.

I usually get involved in project management & steering questions such as team composition and milestone planning to bring in my long project experience.

Languages

German
Advanced
English
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