Software Developer I

United States Information Technology

Mailgun is hiring a junior software engineer to join our Deliverability Tools (DT) team. The team’s mission is to provide support for DT products within the Mailgun and Mailjet applications. Candidate will be designing, building, and delivering highly scalable software systems to meet our growing application and business requirements. Candidate must have strong organizational skills and be a self-starter comfortable working in a small group or alone to satisfy requirements. Mailgun has a distributed engineering team and will consider qualified candidates throughout the US.


(Under the direction and mentorship of Sr Developers)

  • Passion for clean and simple code despite tight time constraints
  • Desire to maintain and improve existing API’s
  • Passion for building scalable distributed systems


  • High school or equivalent, BS in Computer Science or related area is a plus
  • 1 - 3 years of a relevant work experience
  • Experience in one or more of the following languages: Go or Python
  • Solid understanding of Agile software development life cycle

Preferred Skills

  • Experience with SQL and noSQL (Mongo, Cassandra) databases
  • Experience with RESTful web services
  • Familiar with Atlassian product suite (Confluence & Jira)
  • Experience with modern testing methodologies and tools
  • Experience with CI/CD methodologies and tool


  • 5+ weeks PTO (treat yo’ self)
  • 8 paid holidays
  • Up to 100% Medical coverage for employees
  • Life insurance
  • Exclusive Gold’s Gym membership discounts
  • 12 weeks paid Maternity Leave for birth mothers
  • 4 weeks paid Parental Leave for parents, including through adoption or foster care
  • 401k with employer match
  • 24/7 parking for downtown San Antonio office
  • Limitless supply of Topo Chico in the San Antonio Office
  • Weston Centre Member Card for exclusive restaurant & hotel discounts in San Antonio


Powerful Transactional Email APIs that enable you to send, receive, and track emails, built with developers in mind.

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