GreatHorn: Full-Stack Engineer
260 Charles St
Waltham, MA 02453



To apply for this position, email your resume to

GreatHorn is seeking a Full-Stack Engineer based in our Waltham, Massachusetts office.

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


This is an opening for a skilled and thoughtful full-stack developer to work alongside a team of highly creative and talented software engineers, building a cloud-native email security platform. This role will be a key member of a design-oriented development team. The ideal candidate will be comfortable working with the entire stack of a modern microservices-based web application.

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
  • Single-page web applications using an MVC frame such as React, Angular, etc.
  • Client-side JavaScript, CSS, SQL
  • Cloud technologies including AWS and Azure.
  • Bonus: Cybersecurity and/or startup experience

The Team 

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 waemail 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