Staff Software Engineer, Web Application Services

Mozilla·RemoteRemotosenior

En corto

→Liderazgo técnico en servicios web de Thunderbird, más allá del correo.
→Desarrollo de productos como calendario y almacenamiento seguro, con enfoque en privacidad y escalabilidad.
→Rol de influencia amplia con autonomía y trabajo en equipo global distribuido.

Proficiency in English required for collaboration with global teams.

En ~1 minuto te damos: quién te entrevista, las preguntas probables con respuestas desde tu CV, y tu CV adaptado a esta vacante. Gratis, sin tarjeta.

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¿Qué piden?

✓Experiencia sólida en arquitectura de sistemas web y servicios backend.
✓Capacidad para liderar proyectos técnicos complejos desde cero.
✓Conocimiento profundo en desarrollo de software de alta escalabilidad y seguridad.
✓Experiencia con productos de consumo en entornos de código abierto.
✓Habilidades de mentoría y colaboración con equipos distribuidos.
✓Capacidad para resolver problemas ambiguos con enfoque estratégico.

¿No cumplís todo? Es lo normal — tu dossier gratis te dice qué gaps tenés y cómo cubrirlos en la entrevista.

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¿A quién escribirle en Mozilla?

Tu dossier gratis identifica a las personas que te entrevistarían — con su background, qué valoran y cómo escribirles para destacar antes de aplicar.

Why Thunderbird? Thunderbird is one of the world’s most trusted open-source email applications, empowering more than 20 million people globally. At Thunderbird, we build privacy-respecting communication and productivity tools that help people manage their digital lives while staying in control of their data. We are open source by design. Our products are developed transparently and in collaboration with a global community of contributors, and that same spirit shapes how we work: collaboratively, inclusively, and with a shared commitment to putting users first. Our small but growing distributed team includes more than 65 people across seven countries. As Thunderbird evolves beyond a single desktop application, we are expanding across desktop, mobile, paid services, AI offerings, and enterprise-facing work to build independent, privacy-respecting alternatives to big tech ecosystems. Our revenue model combines user donations, which help keep Thunderbird’s applications freely available, with paid services that cover the costs of hosted offerings while supporting long-term sustainability and continued innovation. A note about Thunderbird and Mozilla: Thunderbird Technologies Corporation is the nonprofit-owned company behind Thunderbird email and a growing portfolio of products. While part of the Mozilla family, Thunderbird is a separate entity from Mozilla Corporation and Mozilla Foundation with its own compensation programs, benefits, and employment policies. To learn more, visit www.thunderbird.net The opportunity As a Staff Software Engineer, Services, you’ll help shape the architecture and technical direction of web-based products that extend Thunderbird beyond email. The Services team is currently focused on building offerings such as an appointment calendar and secure file storage and transfer solutions, creating valuable experiences for our users while supporting additional revenue streams for Thunderbird. This is a Staff-level individual contributor role with significant technical ownership and influence. You’ll work with designers, engineers, and community members to write code, build prototypes, solve complex problems, and make technical decisions that shape our products. You’ll take a holistic view of our code and systems, helping establish the architecture and software patterns that allow our Services products to evolve and scale. You’ll also take on broad, ambiguous problems that have a direct impact on our goals, from improving our technical architecture to helping grow Services users and subscribers. Along the way, you’ll provide technical and product direction across teams, mentor other engineers, and identify ways to make our systems and processes more sustainable, scalable, and easier to work with. What you’ll do • Lead the technical architecture of new Services products, taking ownership of complex projects and identifying improvements that strengthen our systems as they evolve. • Write code, build prototypes and experiments, and contribute throughout the development lifecycle, from planning and testing through implementation, monitoring, and maintenance. • Help establish software patterns and make technical decisions across

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