About Us
Mailbutler is the leading email productivity extension for Microsoft Outlook, Apple Mail, and Gmail, offering a range of email-enhancing features. The extension allows users to track emails and links, schedule emails, create professional email signatures and templates, and utilize a smart assistant powered by AI. Mailbutler provides a simple solution to boost email productivity for personal and work-related communication.
The Position
We are looking for a Senior Full-Stack Engineer to join our product & development team and take a key role in shaping and maintaining our system’s backend and frontend components. In this role, you’ll work on developing new features together with our product owner and UX/UI designer, as well as maintaining and optimizing our existing systems. As a senior team member, you’ll be a go-to person for solving complex technical challenges and diving deep into investigations when needed.

What You’ll Do

• Develop and maintain core features across our diverse tech stack: Swift, Vue, TypeScript, Ruby-on-Rails, Node.js, Golang
• Work on backend-heavy tasks while collaborating with our three frontend engineers and one backend engineer
• Utilize extension points for Apple Mail (Accessibility API), Outlook (Microsoft add-in API), and Gmail (browser extension)
• Contribute to DevOps and infrastructure tasks if you’re interested, leveraging AWS, CI/CD, and automated scaling
• Work closely with product and UX/UI teams to bring features from concept to production
• Investigate and resolve complex technical issues, ensuring the system remains robust and scalable
• Collaborate in an asynchronous work environment with flexible working hours (24h, 32h, or 40h per week)

What You Bring

• Extensive experience in full-stack development, with a strong focus on backend technologies and architecture
• Deep understanding of networking, HTTP communication, and databases
• Ability to work cross-functionally and adapt to technical challenges with flexibility
• Curiosity and a problem-solving mindset—willing to dig deep into tricky technical problems and find creative workarounds
• Experience working with cloud environments, preferably AWS, and familiarity with CI/CD best practices

Why Join Us?

• Full remote work with an option to work from our co-working space in Berlin
• No fixed working hours—we follow an asynchronous work model
• Flexible work week options: Choose between 24h, 32h, or 40h per week
• Work on a product that integrates deeply with Apple Mail, Outlook, and Gmail, tackling unique engineering challenges
• Direct impact — help shape the technical future of the company and free up the CTO for strategic growth

If you’re an experienced full-stack engineer who enjoys working on challenging problems, shaping technical decisions, and thriving in a flexible, async-first work environment, we’d love to hear from you!
Art der Stelle: Vollzeit, Festanstellung
Gehalt: 65.000,00€ - 90.000,00€ pro Jahr

Arbeitszeiten:

• Montag bis Freitag

Flexible Sprachanforderungen:

• Keine Deutschkenntnisse erforderlich

Leistungen:

• Betriebliche Weiterbildung
• Flexible Arbeitszeiten
• Homeoffice-Möglichkeit
• Kostenlose Getränke

Berufserfahrung:

• Full Stack Development: 5 Jahre (Erforderlich)
• Ruby-on-Rails: 5 Jahre (Erforderlich)

Arbeitsort: Homeoffic

• Develop and maintain core features across our diverse tech stack: Swift, Vue, TypeScript, Ruby-on-Rails, Node.js, Golang
• Work on backend-heavy tasks while collaborating with our three frontend engineers and one backend engineer
• Utilize extension points for Apple Mail (Accessibility API), Outlook (Microsoft add-in API), and Gmail (browser extension)
• Contribute to DevOps and infrastructure tasks if you’re interested, leveraging AWS, CI/CD, and automated scaling
• Work closely with product and UX/UI teams to bring features from concept to production
• Investigate and resolve complex technical issues, ensuring the system remains robust and scalable
• Collaborate in an asynchronous work environment with flexible working hours (24h, 32h, or 40h per week