Senior Frontend Full Stack Developer (Remote)

Senior Frontend Full Stack Developer | WhoisArt GmbH | UK

About Seriously

We’re a hands-on digital team in Zürich that turns complex ideas into real solutions. Since 2010, we’ve been both advisors and builders – helping businesses figure out what they need, then actually building it.

Having deep roots in the startup ecosystem, we know what it takes to build successful products and companies from the ground up. Whether it’s a sophisticated web platform or custom software, we bring founder-level thinking to every project!

The Role

We’re looking for a Senior Developer who excels in frontend development while being comfortable across the full stack. You’ll take ownership of client projects and help shape our technical future.

This is for someone who wants to own their work end-to-end – from architecting solutions to innovative products.

If you’re passionate about technical excellence and ready to make an impact, we want to hear from you!

Tasks

• Own the Frontend – Lead our frontend development with modern tech (Tailwind CSS)
• Drive Full Stack Solutions – Create new applications with Phoenix/LiveView (Elixir) while maintaining existing PHP/React projects (PHP 8, Typescript)
• Support Clients – Communicate directly with clients, understand their needs, and help them succeed
• Keep Learning – Stay curious and adapt as we evolve our tech stack and practices
• Shape Innovation – Help evaluate and integrate cutting-edge tech
• Be Heard – Your perspective matters – help us make smart decisions about our future

Requirements

Frontend Excellence (Our Priority)

• Deep understanding of modern frontend development
• Sharp eye for UI details and user experience
• Mastery of modern CSS and frameworks (Tailwind)
• Proven track record of building polished interfaces
• Ability to craft solutions within existing design systems

Growth & Adaptability

• Eager to learn Elixir/Phoenix and functional programming
• Comfortable switching between different tech stacks and contexts
• Open mindset to explore and evaluate new technologies
• Interest in improving and evolving solutions

Engineering Foundation

• Experience in modern full stack development
• Detail-oriented implementation approach with disciplined testing mindset
• Strong understanding of web frameworks and development practices
• Ability to maintain and modernize existing solutions

Professional Qualities

• Takes ownership and pride in their work
• Balances innovation with practical maintenance needs
• Self-reflective and learns from experiences and feedback
• Brings a can-do attitude to challenges

Nice to Have

• Background in functional programming
• Knowledge of modern web tools (CMS, Newsletter, API, Analytics, Monitoring, Cloud…)
• Interest in AI
• German language skills

We believe great developers never stop learning – embrace starting from zero, as every expert was once a beginner.

Benefits

What Makes Us Different

• We’re small by choice, which means you’ll have direct impact from day one
• Your voice matters – from tech decisions to product direction
• Freedom to learn and grow across different areas

Our Offer

• Remote-first setup (preferably based in Zurich, Switzerland)
• Flexible hours that fit your life
• Fair compensation
• Elixir in Production

Work Environment

• 80-100% position
• Tight-knit team, no corporate overhead
• Mix of client projects and product development
• Direct communication with everyone involved

Growth & Development

• Learn beyond just coding – from business to product thinking
• Shape our technical direction
• Freedom to experiment and implement your ideas

Say Hello

• Tell us why you’re interested in the role and share your story
• What is your frontend experience?
• What is your full stack experience?
• Please share some work examples with us.

First Conversation (up to 45 min, remote)

• Meet one of our partners
• Learn about our work and our approach
• Discuss your experience and aspirations

Technical Deep Dive (60 min, remote)

• In-depth discussion about your expertise
• Explore your problem-solving approach
• Talk about real-world technical challenges

Hands-on Challenge

• Work on a practical mini-project
• Show us how you think and code
• Complete at your own pace

Final Meeting (in person)

• Review and discuss your solution
• Align on next steps

We believe in making our hiring process transparent and respectful of your time. Each step helps us both ensure there’s a great mutual fit.

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Nerd Section

Core Stack

• Elixir (Phoenix, LiveView) for modern apps
• PHP (Statamic, Laravel, legacy custom WordPress with Timber) for content platforms
• TypeScript with React (Next.js, Remix, Gatsby)
• Tailwind CSS (legacy Bootstrap 4), FrankenUI/ShadCDN

Infrastructure & DevOps

• Hetzner & AWS (ECS, ELB, EC2, IAM, S3, SSM) managed with Terraform
• GitHub with Graphite (Stacked Git) & GitHub Actions
• Varnish (Fastly) & Imgix for performance

Data & APIs

• PostgreSQL, MariaDB, SQLite
• GraphQL & REST APIs
• AI integration capabilities

Development Environment

• macOS & NixOS
• Slack (proudly Teams-free!)

Integrations

• Shopify & Salesforce
• Mailchimp
• Google Analytics & Tag Manager

Tagged as: remote, remote job, virtual, Virtual Job, virtual position, Work at Home, work from home