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Senior Software Engineer

  • Mailgun
  • Full time
  • United States
  • 19/02/2021

Mailgun is seeking a senior software developer to join our engineering team. Candidates will help drive the dev effort for the development of new products and features in the Mailgun platform. As a senior member of this team you will help design and build innovative performant, reliable, data driven solutions focused on delivering amazing customer experiences. Empirical performance, reliability, scalability, and usability should be baked into your design as a fundamental indicator of your success. You must be a thought leader able to thrive in an energetic environment, be naturally collaborative, invested in coaching junior teammates and live in a product based continuous improvement mindset. If this sounds like you then let’s talk.

Our Team

  • We move fast and don’t believe in having unnecessary silos and red tape that keep teams from shipping software. As a developer on the team, you are responsible for not only building great software, but ensuring it is operating properly once it’s been deployed.
  • We have a passion for solving hard problems – our services are responsible for processing billions of requests each day and have to not only scale but be highly secure.


  • Thought leader able to design, develop, and improve new products and features.
  • Leverage test driven development and software development best practices 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 passion for clean and simple code
  • Clearly define and maintain technical solution design architecture and contract documentation
  • Advocate for developer and customer experience
  • Help the team achieve their sprint level commitments and goals
  • Coach and mentor junior team mates


  • BS in Computer Science or related area
  • 5-7 years of relevant work experience
  • Full stack experience is required
  • Fluent in Go and/or Python
  • Experience with SQL and noSQL (Mongo, Cassandra) databases
  • Experienced with React and NodeJS
  • Experience using and tuning Mongo and Cassandra
  • Experience building RESTful web services.
  • Experienced delivering solutions in CI/CD environment
  • Experience with enterprise architecture and design
  • Strong understanding of AWS and GCP


  • KEEPING YOU HEALTHY: Mailgun 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: Mailgun 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 Mailgun 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

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

    About Mailgun

    Mailgun is the leading API-based email delivery service to send, receive, and track email. Since our start in 2010, Mailgun has delivered innovative technologies to the email space for the benefit of technically progressive companies around the globe. In October 2019, Mailgun furthered this initi...

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