Freelancers using JavaScript in Berlin

Freelancers using JavaScript in BerlinFreelancers using JavaScript in Berlin

Projects People

Moritz Drescher

proBerlin, Germany

Web & mobile app developer

$25k+: Earned

3x: Hired

5.0: Rating

112: Followers

Top

expert

Web & mobile app developer

Cover image for New website and booking portal

New website and booking portal

10

177

Cover image for Two-sided sharing platform for everyday items

Two-sided sharing platform for everyday items

4

52

Cover image for New website and booking portal

New website and booking portal

1

34

Cover image for Feedback Platform FasterFeedback.app

Feedback Platform FasterFeedback.app

5

172

Andrii Tovstonos

Berlin, Germany

Expert Website Maintenance & High-Performance Optimization

New to Contra

Expert Website Maintenance & High-Performance Optimization

Cover image for Firewood Delivery Logic & Maps

Firewood Delivery Logic & Maps Integration ➤ The Challenge: A local firewood supplier needed to automate delivery quotes. Manual distance checking was slow and prone to errors. ➤ The Solution: I built a custom Vanilla JS tool with deep Maps API integration: • Google Maps API: Automated real-time distance calculation for every order. • Dynamic Pricing: Logic that factors in wood type, volume, weight, and mileage. • UX/UI: Lightweight, mobile-first interface for instant customer quotes. ➤ The Result: • Automation: Zero manual checks needed; instant pricing for customers. • Efficiency: Eliminated pricing disputes and optimized the booking flow. • Performance: High-speed tool with zero external library dependencies.

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28

Cover image for Industrial B2B Growth & Maintenance

Industrial B2B Growth & Maintenance Value ➤ The Challenge: A legacy industrial site was invisible to engineers. Goal: Transform it into a lead-gen tool via technical excellence. ➤ The Solution: I deployed a comprehensive technical and content strategy: • Custom JS Engineering: Developed an intricate lifespan calculator for parts. • 100/100 Speed: Reached perfect performance scores via deep code refactoring. • Expert Content: Launched a research-driven blog that dominated technical search intent. ➤ The Result (The Evidence): • Growth Spike: Deployment led to a 400% surge in organic traffic. • The Maintenance Gap: As shown in the chart, the cessation of expert support ("Too Expensive") coincided with a clear loss of momentum. • Proven ROI: Technical excellence isn't just a setup - it's the engine that sustains market leadership.

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50

Cover image for Achieving 99/100 Mobile Speed &

Achieving 99/100 Mobile Speed & Breaking the Traffic Plateau ➤ The Challenge: The site was stuck in the "Yellow Zone" (~70 PageSpeed). High-quality content was held back by technical overhead, resulting in a stagnant traffic plateau. ➤ The Solution: I executed a deep technical overhaul to unlock the site's ranking potential: • 0ms Blocking Time: Eliminated JS execution delays for instant interactivity. • Visual Stability: Achieved a 0.001 CLS, ensuring a perfect UX. • Speed: Optimized the rendering path to hit 0.9s FCP and 99/100 Mobile score. ➤ The Result: • Plateau Broken: Technical fixes (last green dot on chart) acted as a catalyst for new organic growth. • Elite Performance: Sustained 99+ PageSpeed scores on mobile. • Business Impact: Improved rankings and higher conversion rates.

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Cover image for 100% Organic Growth via Technical

100% Organic Growth via Technical Refactoring The Challenge: Stagnant traffic and poor mobile UX due to bloated legacy scripts (jQuery), unoptimized media, and weak semantic structure. The Solution: I executed a deep technical overhaul to modernize the stack: • Vanilla JS Migration: Replaced jQuery with pure, high-performance JavaScript. • Smart Media: Implemented WebP/AVIF, responsive sizes, and lazy-loading. • SEO Foundation: Cleaned HTML semantics and added Schema.org microdata. • On-Page: Refreshed Meta Tags to align with search intent. • Bootstrap 5 Tuning: Optimized CDN delivery and CSS path for zero speed impact. The Result: 99–100 Mobile PageSpeed: Perfect scores even with a CSS framework. Traffic Surge: Organic growth from 14K to 30K+ monthly sessions in 12 months.

1

40

proBerlin, Germany

Certified Webflow Developer

$10k+: Earned

6x: Hired

5.0: Rating

15: Followers

Certified Partner

Certified Webflow Developer

Cover image for OdaStudio (Webflow Development)

OdaStudio (Webflow Development)

0

18

Cover image for Checkmate

0

10

Cover image for Business Automation & Custom Workflows | TailorLoom

Business Automation & Custom Workflows | TailorLoom

0

5

Cover image for Mast Capital (Webflow Development)

Mast Capital (Webflow Development)

0

14

proBerlin, Germany

Web & Motion Design | Certified Webflow Expert

New to Contra

Web & Motion Design | Certified Webflow Expert

Cover image for Website Redesign for Soura Film Festival

Website Redesign for Soura Film Festival

1

2

Cover image for Hey Contra! 👋 Just joined

Hey Contra! 👋 Just joined the community. Hamad here, Webflow developer and web designer from Berlin. Rebuilding my own portfolio about 10 times in 2022 made me realize I really liked doing this. Since then I've been designing and developing webflow builds and motion design for startups, SaaS companies and even film festivals! Latest thing I can show: a video-heavy site for TheVideoKlub.com (http://TheVideoKlub.com) with GSAP animations, a full responsive style guide, and PageSpeed 96 💅🏽 Happy to connect with fellow designers and developers! and ready for my next gig if you ever hear of something 👀

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72

Cover image for Webflow Development for TheVideoKlub

Webflow Development for TheVideoKlub

0

3

Cover image for Webflow Migration & Development for Shit2Power

Webflow Migration & Development for Shit2Power

0

2

Berlin, Germany

Web Designer & Fullstack Developer from parnii.de | Wix+Velo

28: Followers

Web Designer & Fullstack Developer from parnii.de | Wix+Velo

Cover image for Interior Design Academy Wix Studio Landing Page Template

Interior Design Academy Wix Studio Landing Page Template

1

5

Cover image for The Museum of Adventures

The Museum of Adventures

1

9

Cover image for A Starter Site for a Composer and Music Producer

A Starter Site for a Composer and Music Producer

1

4

AIT Logo Redesign

1

1

Alessandro Amato

Berlin, Germany

Innovative Web Developer & Designer

Innovative Web Developer & Designer

Cover image for Jongsma + O’Neill

Jongsma + O’Neill

0

12

Cover image for The Living Archive - Centrinno EU

The Living Archive - Centrinno EU

0

26

Cover image for Direction+Design - TOM DE REGT

Direction+Design - TOM DE REGT

0

2

Cover image for NXT Commerce Summit

NXT Commerce Summit

0

10

Berlin, Germany

Driving business success with Salesforce expertise

Driving business success with Salesforce expertise

Cover image for Capital First

0

1

Cover image for RECS

0

1

Cover image for Leaseplan

0

1

Cover image for Delivery Hero

0

1

Berlin, Germany

Full-Stack Software Engineer (JS/TS/Python/PHP)

Full-Stack Software Engineer (JS/TS/Python/PHP)

Cover image for Toontown: Corporate Clash

Toontown: Corporate Clash

0

4

Cover image for ResearchGate

0

4

Cover image for Crisis UK

0

1

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