Hi, I'm Christian Jöcker,
a 

I work as a freelance developer and designer, and am passionate about creating great experiences with beautiful web applications!

What I Can Do for You

/assets/face with-sunglasses-CPN58VpN

Web Applications

/assets/artist C7nh18kN

UX/UI Design

/assets/robot clKX3WjG

IoT Platforms

/assets/rocket B6g9WbFC

Rapid Application Development

/assets/strategy BgiiLw5R

Digital Strategy Consulting

strong
Years of Experience
smartphone
Developed Apps
happy face
Happy Customers

Skills

Web Development

React
Angular
TypeScript
Javascript
Remix
Next.js
Node.js
Zustand
CI/CD
RESTful API design
Prisma
PostgreSQL
Vercel AI SDK
database management
security best practices
HTML
CSS
Material-UI
Framer-Motion
Jest
Vitest
Cypress
Playwright
Tailwind CSS
Azure
AWS
AWS CDK
AWS SDK
Docker
VBA
Scrum
Agile
Internet of Things (IoT)
MQTT
Embedded C
STM32

UX/UI Design

Figma
AdobeXD
Photoshop
Illustrator
Affinity Designer
Animate
After Effects
Premiere Pro
user tests
wireframes and prototypes
User-Centered-Design
user journey map
user centered design (UCD)
information architecture
personas
accessibility
red routes
card sorting
responsive design
interaction design
UX writing
UX research
A/B testing
cross-cultural design
ideation workshops

Core Values

Excellence

Sustainable architecture, clean code, and great UX are my mantras.

Accountable

I stand for my decisions, achievements and mistakes.

Passion

I love what I do and you will notice it!

Kindness

Always eager to help and understand the other side.

avatar of myself meditating

Education and Work Experience

graduate cap
/assets/th wildau-DuUyfi7E
Mechanical Engineering (B. Eng.)
Sep, 2011 - Aug, 2014 (3y)
Wildau, Germany
data:image/svg+xml,%3csvg%20viewBox='0%200%20100%2018'%20xmlns='http://www.w3.org/2000/svg'%20fill rule='evenodd'%20clip-rule='evenodd'%20stroke-linejoin='round'%20stroke-miterlimit='2'%3e%3cg%3e%3cpath%20d='M409.832%20344.333l-105.148-86.63%20105.148-83.863h-76.839l-98.975%2083.863V173.84h-54.702v170.493h54.702v-86.63l98.975%2086.63h76.839z'%20transform='matrix(.09866%200%200%20.09866%20-.564%20-.451)%20translate(-174.111%20-168.577)'%20fill='url(%23a)'%20fill-rule='nonzero'/%3e%3cpath%20d='M428.989%20106.367c0%2021.71-8.089%2028.096-30.438%2028.096h-54.064c-22.349%200-30.437-6.386-30.437-28.096V5.263h-54.49v110.895c0%2042.357%2022.775%2062.578%2072.795%2062.578h78.116c50.232.212%2073.007-20.008%2073.007-62.578V5.263h-54.489v101.104z'%20fill='url(%23b)'%20fill-rule='nonzero'%20transform='matrix(.09866%200%200%20.09866%20-.564%20-.451)'/%3e%3cpath%20d='M911.732%205.263h-48.104l-107.063%20170.28L651.63%2089.126%20756.777%205.263h-76.838l-99.188%2083.863%2099.188%2086.63h139.203l18.093-29.587h100.891l18.092%2029.587h62.582L911.732%205.263zm-55.766%20106.85l31.714-54.276%2031.715%2054.276h-63.429z'%20fill='url(%23c)'%20fill-rule='nonzero'%20transform='matrix(.09866%200%200%20.09866%20-.564%20-.451)'/%3e%3cpath%20d='M5.204%205.263H59.906V175.756H5.204z'%20fill='url(%23d)'%20transform='matrix(.09866%200%200%20.09866%20-.564%20-.451)'/%3e%3cpath%20d='M526.048%205.263H580.75V175.756H526.048z'%20fill='url(%23e)'%20transform='matrix(.09866%200%200%20.09866%20-.564%20-.451)'/%3e%3c/g%3e%3cdefs%3e%3clinearGradient%20id='a'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='rotate(-10.5%201955.815%20-776.652)%20scale(941.603)'%3e%3cstop%20offset='0'%20stop-color='rgb(255,96,0)'/%3e%3cstop%20offset='1'%20stop-color='rgb(255,88,0)'/%3e%3c/linearGradient%3e%3clinearGradient%20id='b'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='rotate(-10.5%20951.452%2086.483)%20scale(941.603)'%3e%3cstop%20offset='0'%20stop-color='rgb(255,96,0)'/%3e%3cstop%20offset='1'%20stop-color='rgb(255,88,0)'/%3e%3c/linearGradient%3e%3clinearGradient%20id='c'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='rotate(-10.5%20951.452%2086.483)%20scale(941.603)'%3e%3cstop%20offset='0'%20stop-color='rgb(255,96,0)'/%3e%3cstop%20offset='1'%20stop-color='rgb(255,88,0)'/%3e%3c/linearGradient%3e%3clinearGradient%20id='d'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='scale(80.1637)%20rotate(10.5%20-5.673%20-.151)'%3e%3cstop%20offset='0'%20stop-color='rgb(255,96,0)'/%3e%3cstop%20offset='1'%20stop-color='rgb(255,88,0)'/%3e%3c/linearGradient%3e%3clinearGradient%20id='e'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='scale(80.1637)%20rotate(10.5%20-2.424%2035.21)'%3e%3cstop%20offset='0'%20stop-color='rgb(255,96,0)'/%3e%3cstop%20offset='1'%20stop-color='rgb(255,88,0)'/%3e%3c/linearGradient%3e%3c/defs%3e%3c/svg%3e
Software Engineer - Virtual Commissioning
Feb, 2015 - Apr, 2018 (3.3y)
Augsburg, Germany
office building
graduate cap
data:image/svg+xml,%3csvg%20viewBox='0%200%20141%20120'%20xmlns='http://www.w3.org/2000/svg'%20fill rule='evenodd'%20clip-rule='evenodd'%20stroke-linejoin='round'%20stroke-miterlimit='2'%3e%3cpath%20d='M103.161%2057.27v8.255H37.637V13.68h8.154v43.69h49.216v-.1h8.154zm0-5.498h-8.154V8.155H45.791v.026h-8.154V0h65.524v51.772z'%20fill='white'/%3e%3cpath%20transform='translate(-.01)%20scale(.9882)'%20d='M60.043%2022.691H81.739V44.387H60.043z'%20fill='rgb(179,179,179)'/%3e%3cpath%20d='M24.76%20108.923c0%203.408-1.225%206.124-3.675%208.095-2.503%201.97-5.912%202.983-10.332%202.983-4.048%200-7.67-.8-10.759-2.29v-7.51c2.557%201.172%204.74%201.97%206.498%202.45%201.81.426%203.409.692%204.9.692%201.757%200%203.089-.373%204.047-1.012.96-.692%201.438-1.704%201.438-3.035a3.231%203.231%200%2000-.639-1.971%207.002%207.002%200%2000-1.81-1.704c-.8-.533-2.45-1.385-4.953-2.557-2.29-1.118-4.048-2.13-5.22-3.142a11.697%2011.697%200%2001-2.77-3.515C.794%2095.075.422%2093.53.422%2091.72c0-3.355%201.171-6.018%203.408-7.935%202.29-1.918%205.432-2.876%209.48-2.876%201.97%200%203.835.213%205.646.692%201.81.48%203.674%201.118%205.645%201.97l-2.61%206.285a35.992%2035.992%200%2000-5.006-1.757%2016.96%2016.96%200%2000-3.941-.48c-1.545%200-2.716.373-3.515%201.065-.8.693-1.225%201.651-1.225%202.77%200%20.692.16%201.331.48%201.864a5.558%205.558%200%20001.597%201.544c.692.48%202.397%201.385%205.113%202.663%203.568%201.705%205.965%203.409%207.296%205.113%201.332%201.704%201.97%203.782%201.97%206.285z'%20fill='rgb(179,179,179)'%20fill-rule='nonzero'/%3e%3cpath%20d='M47.81%2087.62c-3.035%200-5.378%201.118-7.03%203.408-1.704%202.29-2.503%205.485-2.503%209.533%200%208.468%203.196%2012.729%209.534%2012.729%202.663%200%205.912-.692%209.693-2.024v6.764c-3.09%201.331-6.604%201.97-10.439%201.97-5.539%200-9.746-1.704-12.675-5.059-2.93-3.355-4.42-8.149-4.42-14.433%200-3.941.745-7.403%202.183-10.386%201.438-2.982%203.462-5.272%206.178-6.817%202.716-1.597%205.858-2.396%209.48-2.396%203.675%200%207.403.905%2011.13%202.663l-2.609%206.55a42.773%2042.773%200%2000-4.26-1.757%2013.557%2013.557%200%2000-4.261-.746zm33.883%2031.848l-9.16-29.825h-.213c.32%206.072.48%2010.12.48%2012.143v17.682h-7.19V81.44h10.97l9.001%2029.08h.16l9.533-29.08h10.972v38.027h-7.51v-18.002c0-.852%200-1.81.053-2.929%200-1.118.107-4.047.32-8.84h-.213l-9.8%2029.77h-7.403zm48.779%200h-8.042V88.152h-10.333v-6.71h28.707v6.71h-10.332v31.316z'%20fill='white'%20fill-rule='nonzero'/%3e%3c/svg%3e
Master of Business Engineering (MBE®)
Feb, 2016 - Apr, 2018 (2.3y)
Filderstadt, Germany
data:image/svg+xml,%3csvg%20viewBox='0%200%20100%2018'%20xmlns='http://www.w3.org/2000/svg'%20fill rule='evenodd'%20clip-rule='evenodd'%20stroke-linejoin='round'%20stroke-miterlimit='2'%3e%3cg%3e%3cpath%20d='M409.832%20344.333l-105.148-86.63%20105.148-83.863h-76.839l-98.975%2083.863V173.84h-54.702v170.493h54.702v-86.63l98.975%2086.63h76.839z'%20transform='matrix(.09866%200%200%20.09866%20-.564%20-.451)%20translate(-174.111%20-168.577)'%20fill='url(%23a)'%20fill-rule='nonzero'/%3e%3cpath%20d='M428.989%20106.367c0%2021.71-8.089%2028.096-30.438%2028.096h-54.064c-22.349%200-30.437-6.386-30.437-28.096V5.263h-54.49v110.895c0%2042.357%2022.775%2062.578%2072.795%2062.578h78.116c50.232.212%2073.007-20.008%2073.007-62.578V5.263h-54.489v101.104z'%20fill='url(%23b)'%20fill-rule='nonzero'%20transform='matrix(.09866%200%200%20.09866%20-.564%20-.451)'/%3e%3cpath%20d='M911.732%205.263h-48.104l-107.063%20170.28L651.63%2089.126%20756.777%205.263h-76.838l-99.188%2083.863%2099.188%2086.63h139.203l18.093-29.587h100.891l18.092%2029.587h62.582L911.732%205.263zm-55.766%20106.85l31.714-54.276%2031.715%2054.276h-63.429z'%20fill='url(%23c)'%20fill-rule='nonzero'%20transform='matrix(.09866%200%200%20.09866%20-.564%20-.451)'/%3e%3cpath%20d='M5.204%205.263H59.906V175.756H5.204z'%20fill='url(%23d)'%20transform='matrix(.09866%200%200%20.09866%20-.564%20-.451)'/%3e%3cpath%20d='M526.048%205.263H580.75V175.756H526.048z'%20fill='url(%23e)'%20transform='matrix(.09866%200%200%20.09866%20-.564%20-.451)'/%3e%3c/g%3e%3cdefs%3e%3clinearGradient%20id='a'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='rotate(-10.5%201955.815%20-776.652)%20scale(941.603)'%3e%3cstop%20offset='0'%20stop-color='rgb(255,96,0)'/%3e%3cstop%20offset='1'%20stop-color='rgb(255,88,0)'/%3e%3c/linearGradient%3e%3clinearGradient%20id='b'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='rotate(-10.5%20951.452%2086.483)%20scale(941.603)'%3e%3cstop%20offset='0'%20stop-color='rgb(255,96,0)'/%3e%3cstop%20offset='1'%20stop-color='rgb(255,88,0)'/%3e%3c/linearGradient%3e%3clinearGradient%20id='c'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='rotate(-10.5%20951.452%2086.483)%20scale(941.603)'%3e%3cstop%20offset='0'%20stop-color='rgb(255,96,0)'/%3e%3cstop%20offset='1'%20stop-color='rgb(255,88,0)'/%3e%3c/linearGradient%3e%3clinearGradient%20id='d'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='scale(80.1637)%20rotate(10.5%20-5.673%20-.151)'%3e%3cstop%20offset='0'%20stop-color='rgb(255,96,0)'/%3e%3cstop%20offset='1'%20stop-color='rgb(255,88,0)'/%3e%3c/linearGradient%3e%3clinearGradient%20id='e'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='scale(80.1637)%20rotate(10.5%20-2.424%2035.21)'%3e%3cstop%20offset='0'%20stop-color='rgb(255,96,0)'/%3e%3cstop%20offset='1'%20stop-color='rgb(255,88,0)'/%3e%3c/linearGradient%3e%3c/defs%3e%3c/svg%3e
Area Manager - Virtual Commissioning
Apr, 2018 - May, 2019 (1.2y)
Augsburg, Germany
office building
office building
data:image/svg+xml,%3csvg%20viewBox='0%200%20100%2051'%20xmlns='http://www.w3.org/2000/svg'%20fill rule='evenodd'%20clip-rule='evenodd'%20stroke-linejoin='round'%20stroke-miterlimit='2'%3e%3cpath%20d='M.007%2045.925c0-1.74%201.026-2.548%202.363-2.548.859%200%201.532.362%201.926%201.035.393-.673%201.067-1.035%201.926-1.035%201.337%200%202.363.807%202.363%202.548v4.361H7.258v-4.36c0-.932-.498-1.317-1.151-1.317s-1.15.394-1.15%201.316v4.362H3.628v-4.362c0-.922-.498-1.316-1.15-1.316-.654%200-1.152.385-1.152%201.316v4.362H0v-4.362h.007zm11.361.396c0-1.813%201.036-2.942%202.95-2.942%201.918%200%202.974%201.129%202.974%202.942v3.968h-1.325v-2.03h-3.303v2.03h-1.296V46.32zm4.599.735v-.735c0-1.088-.538-1.71-1.657-1.71-1.108%200-1.646.622-1.646%201.71v.735h3.303zm4.25-3.64h1.346v6.873h-1.345v-6.874zm4.342%200h3.29c1.302%200%201.985.746%201.985%201.786%200%20.694-.326%201.23-.893%201.512v.02c.757.243%201.21.873%201.21%201.692%200%201.072-.695%201.86-2.029%201.86H24.56v-6.87zm3.12%202.783c.556%200%20.82-.337.82-.767%200-.44-.21-.766-.83-.766h-1.765V46.2h1.775v-.002zm.21%202.849c.631%200%20.882-.369.882-.819%200-.463-.314-.83-.873-.83h-1.996v1.65h1.987v-.001zm4.468-2.205c0-2.019%201.483-3.502%203.586-3.502%202.103%200%203.586%201.483%203.586%203.502%200%202.019-1.483%203.502-3.586%203.502-2.103%200-3.586-1.48-3.586-3.502zm5.831%200c0-1.318-.907-2.277-2.245-2.277-1.339%200-2.245.959-2.245%202.277s.906%202.288%202.245%202.288c1.338%200%202.245-.967%202.245-2.288zm4.124-3.428h2.88c1.746%200%202.512.957%202.512%202.27%200%201.084-.515%201.83-1.44%202.135l1.691%202.469h-1.598l-1.46-2.322h-1.242v2.322H42.31v-6.874h.002zm2.899%203.3c.85%200%201.135-.442%201.135-1.03%200-.587-.285-1.02-1.135-1.02h-1.556v2.05h1.556zm5.098-.51c0-1.74%201.04-2.828%202.921-2.828%201.881%200%202.921%201.088%202.921%202.829v4.08h-1.345v-4.08c0-1.004-.524-1.597-1.576-1.597-1.051%200-1.576.59-1.576%201.597v4.08H50.31v-4.08zm8.662%201.576v-4.366h1.327v4.366c0%20.934.498%201.319%201.151%201.319s1.15-.394%201.15-1.319v-4.366h1.328v4.366c0%20.923.497%201.319%201.15%201.319.654%200%201.152-.385%201.152-1.319v-4.366h1.327v4.366c0%201.744-1.027%202.55-2.365%202.55-.861%200-1.535-.363-1.929-1.037-.393.674-1.07%201.038-1.928%201.038-1.337%200-2.363-.807-2.363-2.55zm11.036-.938c0-2.023%201.488-3.511%203.595-3.511s3.595%201.488%203.595%203.511c0%202.024-1.488%203.511-3.595%203.511s-3.595-1.487-3.595-3.51zm5.844%200c0-1.323-.909-2.283-2.251-2.283-1.343%200-2.252.96-2.252%202.283s.909%202.293%202.252%202.293c1.342%200%202.251-.973%202.251-2.293zm4.109-3.428h1.345v5.633H84.9v1.24h-4.94v-6.873zm7.495%200h4.98v1.25H88.8v1.513h3.028v1.22H88.8v2.889h-1.345v-6.872zm7.565%200h4.981v1.25h-3.636v1.513h3.028v1.22h-3.028v2.889H95.02v-6.872z'%20fill='white'/%3e%3cpath%20d='M199.749%2049.33h.009c.09-16.8%208.54-31.61%2021.4-40.52-8-5.54-17.7-8.809-28.17-8.809-27.299%200-49.429%2022.059-49.569%2049.329h-.01v87.469l42.82.001V49.57c0-3.708%203.052-6.76%206.76-6.76%203.705%200%206.755%203.045%206.76%206.75v-.23z'%20transform='scale(.2261)'%20fill='url(%23a)'/%3e%3cpath%20d='M298.888%2049.33C298.748%2022.07%20276.618%200%20249.318%200s-49.43%2022.06-49.57%2049.33h-.009v87.469h42.819V49.56c0-2.62%201.44-5.12%203.85-6.14%204.93-2.08%209.67%201.48%209.67%206.15v87.219h42.819V49.32h-.009v.01z'%20transform='scale(.2261)'%20fill='url(%23b)'/%3e%3cdefs%3e%3clinearGradient%20id='a'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='matrix(53.9998%2013%20-13%2053.9998%20143.849%2061.19)'%3e%3cstop%20offset='0'%20stop-color='rgb(255,44,164)'/%3e%3cstop%20offset='.25'%20stop-color='rgb(255,33,157)'/%3e%3cstop%20offset='.68'%20stop-color='rgb(255,2,140)'/%3e%3cstop%20offset='1'%20stop-color='rgb(255,0,139)'/%3e%3c/linearGradient%3e%3clinearGradient%20id='b'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='translate(202.848%2068.19)%20scale(96.9992)'%3e%3cstop%20offset='0'%20stop-color='rgb(55,212,255)'/%3e%3cstop%20offset='.15'%20stop-color='rgb(49,217,236)'/%3e%3cstop%20offset='.43'%20stop-color='rgb(34,228,188)'/%3e%3cstop%20offset='.84'%20stop-color='rgb(10,247,112)'/%3e%3cstop%20offset='1'%20stop-color='rgb(0,255,79)'/%3e%3c/linearGradient%3e%3c/defs%3e%3c/svg%3e
Senior Software Engineer
May, 2019 - Feb, 2023 (3.8y)
Munich, Germany
/assets/me with-macbook-B9QyoX3G.webp
Freelance Full-Stack Developer & UX/UI Designer
Feb, 2023 - Present (2.3y)
Valencia, Spain
office building

Languages

/assets/hamburguer CtYINk2L
English
Fluent
/assets/pretzel lgHGjIp-
German
Fluent
/assets/paella B4EbEGz3
Spanish
Fluent
/assets/feijoada DSFp2IyW
Portuguese
Good command

Testimonials

  • /assets/slected me-CKP1S597
    double quotes
    Christian is a very creative person with attention to details. He really puts effort in developing what makes sense for the end user. He is also a fan of clean code and good architecture.
    /assets/david BzHh88Wp.webp
    David Forino
    CTO and co-founder
    Slected.me GmbH
  • /assets/smart cube-360-BTWeojZV
    double quotes
    Christian is always reliable! He not only tackles his tasks with determination, but also consistently offers suggestions on how to make our software even more user-friendly. All with complete cost transparency! Anyone who gets to work with him is truly lucky!
    /assets/thomas CNRGML95.png
    Thomas Kirner
    CEO and co-founder
    smart cube 360 GmbH
  • data:image/svg+xml,%3csvg%20viewBox='0%200%20100%2051'%20xmlns='http://www.w3.org/2000/svg'%20fill rule='evenodd'%20clip-rule='evenodd'%20stroke-linejoin='round'%20stroke-miterlimit='2'%3e%3cpath%20d='M.007%2045.925c0-1.74%201.026-2.548%202.363-2.548.859%200%201.532.362%201.926%201.035.393-.673%201.067-1.035%201.926-1.035%201.337%200%202.363.807%202.363%202.548v4.361H7.258v-4.36c0-.932-.498-1.317-1.151-1.317s-1.15.394-1.15%201.316v4.362H3.628v-4.362c0-.922-.498-1.316-1.15-1.316-.654%200-1.152.385-1.152%201.316v4.362H0v-4.362h.007zm11.361.396c0-1.813%201.036-2.942%202.95-2.942%201.918%200%202.974%201.129%202.974%202.942v3.968h-1.325v-2.03h-3.303v2.03h-1.296V46.32zm4.599.735v-.735c0-1.088-.538-1.71-1.657-1.71-1.108%200-1.646.622-1.646%201.71v.735h3.303zm4.25-3.64h1.346v6.873h-1.345v-6.874zm4.342%200h3.29c1.302%200%201.985.746%201.985%201.786%200%20.694-.326%201.23-.893%201.512v.02c.757.243%201.21.873%201.21%201.692%200%201.072-.695%201.86-2.029%201.86H24.56v-6.87zm3.12%202.783c.556%200%20.82-.337.82-.767%200-.44-.21-.766-.83-.766h-1.765V46.2h1.775v-.002zm.21%202.849c.631%200%20.882-.369.882-.819%200-.463-.314-.83-.873-.83h-1.996v1.65h1.987v-.001zm4.468-2.205c0-2.019%201.483-3.502%203.586-3.502%202.103%200%203.586%201.483%203.586%203.502%200%202.019-1.483%203.502-3.586%203.502-2.103%200-3.586-1.48-3.586-3.502zm5.831%200c0-1.318-.907-2.277-2.245-2.277-1.339%200-2.245.959-2.245%202.277s.906%202.288%202.245%202.288c1.338%200%202.245-.967%202.245-2.288zm4.124-3.428h2.88c1.746%200%202.512.957%202.512%202.27%200%201.084-.515%201.83-1.44%202.135l1.691%202.469h-1.598l-1.46-2.322h-1.242v2.322H42.31v-6.874h.002zm2.899%203.3c.85%200%201.135-.442%201.135-1.03%200-.587-.285-1.02-1.135-1.02h-1.556v2.05h1.556zm5.098-.51c0-1.74%201.04-2.828%202.921-2.828%201.881%200%202.921%201.088%202.921%202.829v4.08h-1.345v-4.08c0-1.004-.524-1.597-1.576-1.597-1.051%200-1.576.59-1.576%201.597v4.08H50.31v-4.08zm8.662%201.576v-4.366h1.327v4.366c0%20.934.498%201.319%201.151%201.319s1.15-.394%201.15-1.319v-4.366h1.328v4.366c0%20.923.497%201.319%201.15%201.319.654%200%201.152-.385%201.152-1.319v-4.366h1.327v4.366c0%201.744-1.027%202.55-2.365%202.55-.861%200-1.535-.363-1.929-1.037-.393.674-1.07%201.038-1.928%201.038-1.337%200-2.363-.807-2.363-2.55zm11.036-.938c0-2.023%201.488-3.511%203.595-3.511s3.595%201.488%203.595%203.511c0%202.024-1.488%203.511-3.595%203.511s-3.595-1.487-3.595-3.51zm5.844%200c0-1.323-.909-2.283-2.251-2.283-1.343%200-2.252.96-2.252%202.283s.909%202.293%202.252%202.293c1.342%200%202.251-.973%202.251-2.293zm4.109-3.428h1.345v5.633H84.9v1.24h-4.94v-6.873zm7.495%200h4.98v1.25H88.8v1.513h3.028v1.22H88.8v2.889h-1.345v-6.872zm7.565%200h4.981v1.25h-3.636v1.513h3.028v1.22h-3.028v2.889H95.02v-6.872z'%20fill='white'/%3e%3cpath%20d='M199.749%2049.33h.009c.09-16.8%208.54-31.61%2021.4-40.52-8-5.54-17.7-8.809-28.17-8.809-27.299%200-49.429%2022.059-49.569%2049.329h-.01v87.469l42.82.001V49.57c0-3.708%203.052-6.76%206.76-6.76%203.705%200%206.755%203.045%206.76%206.75v-.23z'%20transform='scale(.2261)'%20fill='url(%23a)'/%3e%3cpath%20d='M298.888%2049.33C298.748%2022.07%20276.618%200%20249.318%200s-49.43%2022.06-49.57%2049.33h-.009v87.469h42.819V49.56c0-2.62%201.44-5.12%203.85-6.14%204.93-2.08%209.67%201.48%209.67%206.15v87.219h42.819V49.32h-.009v.01z'%20transform='scale(.2261)'%20fill='url(%23b)'/%3e%3cdefs%3e%3clinearGradient%20id='a'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='matrix(53.9998%2013%20-13%2053.9998%20143.849%2061.19)'%3e%3cstop%20offset='0'%20stop-color='rgb(255,44,164)'/%3e%3cstop%20offset='.25'%20stop-color='rgb(255,33,157)'/%3e%3cstop%20offset='.68'%20stop-color='rgb(255,2,140)'/%3e%3cstop%20offset='1'%20stop-color='rgb(255,0,139)'/%3e%3c/linearGradient%3e%3clinearGradient%20id='b'%20x1='0'%20y1='0'%20x2='1'%20y2='0'%20gradientUnits='userSpaceOnUse'%20gradientTransform='translate(202.848%2068.19)%20scale(96.9992)'%3e%3cstop%20offset='0'%20stop-color='rgb(55,212,255)'/%3e%3cstop%20offset='.15'%20stop-color='rgb(49,217,236)'/%3e%3cstop%20offset='.43'%20stop-color='rgb(34,228,188)'/%3e%3cstop%20offset='.84'%20stop-color='rgb(10,247,112)'/%3e%3cstop%20offset='1'%20stop-color='rgb(0,255,79)'/%3e%3c/linearGradient%3e%3c/defs%3e%3c/svg%3e
    double quotes
    He perfectly embodies the role of a skilled developer, who not only masters his technologies but also has amazing UX know-how. Both his creativity and entrepreneurial mindset bring his projects and the company forward.
    /assets/paula BMpoXtCt.webp
    Paula Montesa Rausell
    Lead Digital Design Engineer
    MaibornWolff GmbH

Community Contributions

My Apps

d-cide logo
d-cide
Core Values Finder logo
Core Values Finder
3 Point Estimator logo
3 Point Estimator
Curriculum Generator logo
Curriculum Generator

Open Source Contributions

MUI (Material-UI) logo
MUI (Material-UI)
Framer Motion logo
Framer Motion

Stack Overflow

stack overflow logo
Reputation
4,453
1
34
40

Last Attended Courses and Conferences

course
Improvisation Skills
SUBIT! – Mar, 2025
course
Epic Web
Kent C. Dodds – Feb, 2025
conference
Valencia Digital Summit
Nov, 2024
course
AWS IoT Hand-on Training
Thomas Kriechbaumer – Apr, 2024
conference
Embedded World
Apr, 2024
conference
UXDX Dublin
Oct, 2023
course
AWS Certified Cloud Practitioner
Neal Davis – Mar, 2023
course
Refactoring UI
Tailwind Labs Inc – Dec, 2022
course
Praise at Eye Level
Stephanie Salecker – Sep, 2022
course
Docker and Kubernetes
Stephen Grider – Jun, 2022
course
Communication Coaching
Moritz Weilandt – May, 2022
conference
React Summit Amsterdam
May, 2022
conference
React Miami
Apr, 2022
course
Radical Honesty
Volker Rupp – Dec, 2021
course
Cloud Instrumentation
MaibornWolff – Apr, 2021
course
Cultural Orientation
Rocio G. Luis – Feb, 2021
course
Liberating Structures
Elisabeth Kistler – Feb, 2021
course
Hacking Workshop
MaibornWolff – Jul, 2020
course
Sketchnoting
Carola Scharvogel – Jun, 2020
course
Epic React
Kent C. Dodds – Jun, 2020
course
Testing Javascript
Kent C. Dodds – Jun, 2020
conference
Scrum Day Stuttgart
May, 2020
course
Good Code
Michael P – Mar, 2020
course
Safe Programming
Philippe Schrettenbrunner – Mar, 2020
course
Architecture Foundation
Jan Schuhmacher – Feb, 2020
course
Frontend Architecture Foundation
Simon Ismair – Feb, 2020
course
Big Pictures
Judith Eckerle – Jan, 2020
course
Professional Scrum with UX
Jeff Gothelf – Jan, 2020
course
Projects Early Phases
Dr. Martina Beck – Dec, 2019
course
Usability School
Kerstin Öchsner & Victoria Müller – Oct, 2019
course
UX Ultimate Guide
Davis Travis – Sep, 2019
course
Your Performance, a Communication Seminar
Nadine Antler & Torsten Voller – Sep, 2019
course
Voice Training
Martin Richter – Aug, 2019
course
Agile Speed Refueling
MaibornWolff – Jul, 2019
course
Business Analysis
Jamal Moustafev – Jul, 2019
course
Test Driven Development
Matt Greencroft – Jun, 2019
course
Affinity Designer
Heiko Deppler – Jan, 2019
christian

About me

Hi, my name is Christian, but my friends call me "Joker". Feel free to do the same. But I need to tell you that I'm bad at telling jokes.

I discovered my passion for programming when I was 9 after my father gave away my beloved dog. To honor his memory, I built a website filled with pictures of him. That's where my love affair with coding began. During high school, I took several graphic design courses and developed a strong interest also in UI design.

In my previous role as a consultant, I specialized in developing custom web applications. There, I had the opportunity to work for big companies across various industries like automotive, tourism, airlines, robotics, and medicine. Unfortunately, my previous projects were confidential. That's why I don't have a portfolio here yet. After years of experience in large corporations, I've ventured into freelance work.

I would love to hear from you and discuss our next project!

handwritten name

Contact Me!

linkedin
twitter
github