Accessibility
WCAG audits, screen reader testing, keyboard & mobile navigation, and inclusive design patterns that go beyond automated tooling.
Web & mobile engineering Consultancy
Accessible.
Fast.
Sustainable.
Radimir Bitsov
I help teams build web and mobile experiences that work for everyone, without compromise on speed, inclusion, or environmental impact. Available for consultancy and workshops.
Brands I’ve worked with
Areas of expertise
Sustainability
Measuring and reducing digital carbon footprints. Efficient assets, lean architecture, and green hosting strategies.
Performance
Core Web Vitals, loading strategies, render optimisation, and engineering for real-world network conditions and devices.
How we work together
Two ways to bring this into your team
Consultancy
Strategic guidance for your team
Deep-dive audits, architecture reviews, and sustained partnerships to embed best practices across your org.
Start a conversationWorkshops
Hands-on training that sticks
Custom sessions on accessibility, performance, and sustainable web development for engineering and product teams.
Book a workshopExperience
Building for the web since 2011
- Years on the web
- 15
- Years in health tech
- 6
- Years organising a11y meetup
- 3
May 2023 to Now
Staff Engineer
acb.studio (opens in a new tab)Düsseldorf · Remote
Jan 2019 to Apr 2023
Senior Frontend Engineer
data4life (opens in a new tab)Berlin · Hybrid
Dec 2017 to Jan 2021
Event Organizer
Aug 2017 to Dec 2018
Senior Frontend Engineer
Oct 2016 to Jul 2017
Senior Frontend Engineer
Feb 2015 to Oct 2016
Frontend Developer
Nov 2012 to Jan 2015
Frontend Developer
May 2012 to Oct 2012
Junior Web Developer (ASP.NET, C#)
Skills
What I bring to a team
Accessibility
- WCAG audits
- Screen reader testing
- Keyboard navigation
- Inclusive design patterns
- Accessibility tooling
Performance
- Core Web Vitals
- Loading & caching strategies
- Render optimisation
- Performance audits
- Digital carbon reduction
Engineering & AI
- Full-stack architecture
- Mobile development
- Security & privacy
- Agentic engineering
- AI integration
- Scalable systems
Sharing
- Workshops & training
- Mentoring & onboarding
- Meetup organising
- Writing & talks
- Open source contributions
- Languages
- Bulgarian (native) · English (full professional) · German (intermediate)
Side projects
Things I build after hours
01 iPhone, iPad & Mac app
Fydra (opens in a new tab)
A vault for everything Apple Passwords cannot hold: notes, SSH and API keys, cards and documents. Encrypted locally, unlocked with biometrics.
02 Website
HSB Sylt (opens in a new tab)
Website for garden and landscape business on the island of Sylt.
03 Coming next
Not announced yet
Still taking shape.
Let's talk