Cruise Sales Application
TravelFrontend Developer · Ongoing
Sales and booking portal for a global cruise provider with CMS and mobile app.
ReactNext.jsReact NativeMaterial-UI+10 more
Ruben Karlsson
From film sets in Madrid to microservices in Berlin.
Full stack developer with 6+ years building B2B platforms, real-time dashboards, and accessible interfaces. I write TypeScript and Python, architect with NestJS and Angular, and deploy on Azure and Docker.
View My WorkExperience
All projects delivered through Teclead Ventures GmbH, where I have worked as an IT consultant since 2019.
Showing 9 projects
B2B Web Application for Global Chemical Corporation
Chemical IndustryFullstack Developer · 3 years
Mission-critical platform for process optimization and data visualization across global production sites.
AngularRxJSTypeScriptHighcharts+18 more
Intranet Dashboard for Energy Company
EnergyFullstack Developer · 13 months
Interactive dashboard for real-time power plant data visualization.
AngularRxJSTypeScriptHighcharts+14 more
Donation System for NGO Websites
Non-ProfitFrontend Developer · ~1.5 years
Pluggable donation web component for non-profit and NGO websites.
AngularAngular MaterialRxJSTypeScript+6 more
Monitoring Tool for API Gateway
Digital SalesFullstack Developer · 6 months
Monitoring dashboard for sales API transaction analysis and alerting.
ReactMaterial DatagridHighchartsTypeScript+6 more
E-Commerce Platform
E-CommerceFrontend Developer · 12 months
Scalable online store platform with browsing, ordering, and checkout.
AngularRxJSTypeScriptCSS3+9 more
SaaS Monitoring Software
SaaSFullstack Developer · 5 months
B2B monitoring platform for real-time system performance tracking.
AngularRxJSTypeScriptCSS3+7 more
Crypto Dashboard
FinanceFrontend Developer · 5 months
Real-time cryptocurrency market visualization and trend analysis.
AngularRxJSNgRxTypeScript+12 more
Storefinder Application
RetailFullstack Developer · 4 months
Location-based retail store finder with geolocation and filtering.
ReactMaterial-UICSS3Python+5 more
About
I'm a full stack developer based in Berlin, working as an IT consultant at Teclead Ventures. For the past six years, I've built B2B platforms, real-time dashboards, donation systems, and booking applications for clients in the chemical, energy, travel, and non-profit sectors.
My strongest tools are Angular, React, NestJS, and TypeScript. I care about accessibility — not as a checkbox, but as a practice. Screen reader optimization, keyboard navigation, and inclusive design are part of how I build, not an afterthought.
Before tech, I worked in film production in Madrid, translated books and articles across four languages, organized cultural festivals in Bavaria, and taught Spanish in Berlin schools. I got into software through Ironhack's bootcamp in 2019 and never looked back.
I speak Spanish and Swedish natively, English and German at C1 level. I work in all four professionally.
Spanish Native
Swedish Native
English C1
German C1
Berlin, Germany
Skills
TypeScriptAngularReactNestJSPostgreSQLDockerAccessibilityPython
Frontend
- Angular Advanced
- React Advanced
- TypeScript Advanced
- RxJS Advanced
- Next.js Proficient
- React Native Proficient
- NgRx Advanced
Backend
- NestJS Advanced
- Node.js Advanced
- Express.js Advanced
- Python Advanced
- REST Advanced
- Microservices Advanced
Database
- PostgreSQL Advanced
- Prisma Advanced
- TypeORM Advanced
- MongoDB Proficient
- Mongoose Proficient
- MySQL Proficient
DevOps & Cloud
- Azure Cloud Advanced
- Docker Advanced
- CI/CD Pipelines Advanced
- Azure DevOps Advanced
- GitHub Actions Proficient
- Kafka Streams Advanced
Testing
- Jest Advanced
- Cypress Advanced
- TDD Advanced
- Accessibility Testing Advanced
- Code Reviews Advanced
Architecture
- Domain Driven Design Advanced
- Microservices Advanced
- Nx Monorepo Advanced
- API Integrations Proficient
Design & UX
- Responsive Design Advanced
- Accessibility Advanced
- Screen Reader Optimization Advanced
- Keyboard Navigation Advanced
- Figma Advanced
Tools
- Git Advanced
- Bash Advanced
- Highcharts Advanced
- Agile / Scrum Advanced
Let's work together.
Whether you need a full stack developer for a project or want to discuss a role, I'd like to hear from you.