Mailgun is looking for a Senior Software Developer to join our InboxReady team. This team is responsible for building and operating a set of products such as Email Verification, Inbox Placement, IP Health and Reputation Monitoring.

Our Team

  • We don’t believe in having unnecessary silos and red tape that keep teams from shipping software. As a developer on the team, you will not only build excellent software, but you will also ensure that it is operating accurately once it’s been deployed.
  • We enjoy solving hard problems – our distributed services process billions of requests each day that have to scale and be highly available.
  • We believe that simplicity is the key to success.


  • Clearly define and maintain technical solution design architecture and contract documentation.
  • Apply Test Driven Development and standard software development methodologies to ensure the reliability and stability our code base.
  • Use application monitoring, instrumentation, and user interaction metrics to help drive technical decisions around the maintenance and scaling of existing solutions.
  • Reduce technical debt through a by writing clean, simple code.
  • Advocate for better developer and customer experience.


  • Requirements
    • BS in Computer Science or related area
    • 5+ years practical software development experience in building large-scale distributed web-based applications
    • Proficiency in Go
    • Strong experience with noSQL (Mongo, Cassandra) databases
    • Some experience with frontend
    • Experience building RESTful web services
    • Experience delivering solutions through a CI/CD pipeline
    • Strong understanding of AWS or GCP cloud environments


  • KEEPING YOU HEALTHY: Pathwire offers 100% employer paid comprehensive medical, dental, and vision plans (US). We offer a variety of supplemental plans to meet your individual needs and provide access to telehealth for all participants.
  • KEEPING YOU BALANCED: Pathwire provides free virtual counseling resources through our Employee Assistance Programs. Your mental health is as important as your physical health.
  • FINANCIAL SECURITY: We offer an employer match for 401k participants to help you plan for the future (US).
  • TAKE A BREAK: We believe performance at work requires balance at home. This is why we provide 5+ weeks of time-off to all employees.
  • FAMILY PLANNING: We know that families can be built in a variety of ways and this is why Pathwire offers paid parental leave and family planning support.
  • WORK WHERE YOU ARE: It’s not where you work that matters. This is why we provide flexible remote work offerings for most of our roles.

(*Colorado Only*) Minimum salary of $124,800 + benefits.

*Note: Disclosure as required by sb19-085 (8-5-20) of the minimum salary compensation for this role when being hired in Colorado.

Pathwire embraces diversity and equal opportunity in all aspects of our business. We are committed to building a company that empowers individuals from a diverse set of backgrounds and values diversity of thought as a beacon for performance. The more inclusive we are, the better our work will be.