
Senior Software Engineer - Web
Job Description
WHO WE ARE
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.
GENERAL INFORMATION
- Employment Type: Permanent
- Previous working experience: 10+ 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: asap
YOUR CHALLENGE AT WIRE
WHAT YOU WILL DO IN DETAILS
- 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
YOUR PROFILE
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., IndexedDB or alternatives), Web Workers, WASM-based libraries, and large in-browser data sets
- Familiarity with secure messaging protocols (e.g., MLS, WebRTC, or E2EE 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 (GitHub 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 resolution.
- You challenge ideas rigorously while remaining respectful — and expect the same from others.
WHY WIRE?
- Join a market-proven (>1,000 customers) company and drive Wire to become the worldwide market leader.
- Enjoy a yearly education budget of 1000 EUR to strengthen personal capabilities.
- With an Urban Sports Club subscription, stay balanced and mentally and physically healthy!
- Work from a beautiful office in the heart of Berlin or choose a mix of working from anywhere vs. spending selected days together in our office to connect on a personal level
- Enjoy fresh breakfast in the office, daily fruits, snacks, free soft drinks, and the world's best Barista coffee machine.
- Wire is an equal opportunities employer and does not discriminate on the grounds of gender, civil status, family status, sexual orientation, religion, age, disability, or race.