GreatHorn: Back-End Engineer
260 Charles St
Waltham, MA 02453



To apply for this position, email your resume to


  • The Need: A back-end engineer with 5-10 years experience
  • The Opportunity: To directly contribute to the success of an extremely innovative cloud security startup
  • Stack: Python, NodeJS, PostgreSQL, Redis, ElasticSearch, RabbitMQ

Job Description 

This is an opening for a skilled and thoughtful backend developer to work alongside a team of highly creative and talented software engineers, building a cloud-native, industry-leading next generation email security platform. The ideal candidate will be comfortable working with a multi-tenant, highly scalable microservice infrastructure.

In addition to contributing significantly to product development, the ideal candidate will be comfortable mentoring other members of the team, serving as a key voice in the product management process, and helping to ensure on-time delivery of high-quality code that drives success for our customers.

The ideal candidate has experience with:

  • Python and NodeJS
  • Relational and NoSQL data stores
  • High availability architecture
  • Real-time data processing
  • Cloud technologies including AWS, and Azure.
  • Bonus: Cybersecurity and/or startup experience


You will be joining a highly talented team made up of security start-up experts who care deeply about their customers. This team is passionate about safeguarding the mission critical communication capabilities of businesses globally. We are fanatically driven to make one of the most basic new-age communication modalities, email, safe and secure to use in a world which is not only constantly evolving, but which is constantly under attack with phishing attempts, identity theft, ransomware, and more.

We are a “work family”. As such, we are highly selective as to who we ask to join. However, if we mutually agree that it makes sense, you will be joining a highly collaborative, supportive, skilled, thoughtful, and intellectually curious group of people who are focused on making GreatHorn a great place to work!


We offer competitive salaries, stock options, medical, vision, and dental insurance, a matched 401k, unlimited vacation time, a fully stocked kitchen, and weekly catered team lunches.

About GreatHorn

GreatHorn is disrupting the email security industry to better protect organizations against advanced email threats through modern data analytics, machine learning, and cloud-native design. Our execution of this mission has driven triple-digit growth for three years in a row, and we’re poised to accelerate that growth in the coming year.

Run by a team of cybersecurity veterans with a track record of success, we solve a pervasive problem with smart technology, employ clever people with common sense from diverse backgrounds, and adhere to a “No A**holes” policy. If that sounds like a place you’d fit in, we hope you’ll come join us!

We believe strongly in diversity, and seek to recognize, develop, and support talent from all backgrounds.

To apply for this position, email your resume to