Senior Software Engineer - Web

Permanent employee, Full-time
• Germany, Berlin, Remote, United Kingdom, France

At Wire, we're on a mission to revolutionize secure collaboration, making privacy the foundation of modern communication. Join us to play an important role in our dynamic team. Wire is the leading end-to-end encrypted communication platform, trusted by businesses, critical infrastructure providers, and governments worldwide. We prioritize privacy as a fundamental right, delivering the most secure communication experience across various industries.

Our cutting-edge encryption technology and robust security measures have made us a trusted partner in the technology, finance, healthcare, and government sectors. If you're passionate about redefining secure communication and want to be part of an innovative team, join us as a Senior Software Engineer - Web. Together, let's build a world where privacy and security shape the future of communication.

• Employment Type:
  
  Permanent
• Previous working experience: 7+ years in Frontend or Full-stack development, with significant time in Senior or Tech Lead roles.
• Working hours:
  
  40hrs/week
• Working
  
  Location:
  
  Berlin Office, Remote within Germany or EU
• Reports to:
  
  Engineering Manager - Web
• Desired start date:
  February 2026

As a Senior Software Engineer - Web at Wire, you’ll drive technical direction across our React-based apps and our Electron-based desktop client. You’ll collaborate closely with Product, Design and other Development teams to translate complex requirements into robust technical solutions.

• Real-time messaging and encrypted media exchange using cutting-edge standards like MLS
• Performance-focused improvements on message processing, rendering, synchronization, and offline-capable workflows across platforms and sessions
• Leading technical initiatives with Senior Engineers, Staff Engineer and Engineering Manager to improve architecture and developer experience
• Defining and driving technical initiatives that improve app scalability, reliability, and maintainability — including modernizing legacy areas
• Driving architectural decisions and raising the technical bar through well-reasoned RFCs and ADRs, thoughtful code reviews, and a collaborative, communicative mindset
• Supporting and mentoring other engineers — helping them grow, share context, and take on broader ownership

You’ve built and maintained complex frontend systems across web and desktop environments and know what it means to carry a feature from rough idea to production. You think in systems, advocate for your decisions with clarity, and know how to move teams forward — even when the path isn’t obvious.

Technical Skills

• Expert-level knowledge of React and frontend architecture
• Hands-on experience with Electron, including security constraints (IPC design, preload boundaries, protocol handling, signing/notarization) is a strong plus
• Strong experience diagnosing and fixing performance and memory issues in real-time applications — including large lists, background processing, CPU vs memory trade-offs and data-processing flows
• Experience working with local client-side databases (e.g., Indexed
  
  DB or alternatives), Web Workers, WASM-based libraries, and large in-browser data sets
• Familiarity with secure messaging protocols (e.g., MLS, WebRTC, or E2E media flows) is a strong plus
• Experience working in modular and multi-package codebases, including monorepos, using tooling like Webpack, npm scripts, and shared frontend infrastructure
• Experience owning or significantly contributing to CI/CD and release pipelines (Git Hub Actions, Jenkins)
• Strong testing practices with unit, integration and e2e test coverage (e.g., Playwright)

• You are fluent in English and can contribute effectively to an international team.
• You mentor by providing context, not just answers — helping others build judgment, not dependency.
• You can break down complex trade-offs and drive alignment without shutting down alternative views.
• You are proactive — when you spot tech debt or poor architecture, you don’t wait for someone to ask. You take initiative.
• You take ownership of problems you didn’t create — and see them through to…