Lead Python (Django) Developer for CRITICALSTART

Kyiv, Kharkiv, Dnipro, Lviv, Remote

Daxx is looking for a Lead Python (Django) Developer to join a team in our Kyiv/Kharkiv/Dnipro office or remote.

About the client:

CRITICALSTART is turning the managed security services market on its head by being the first to
look at cybersecurity threats in a new way! We are on a journey towards building the future of
cybersecurity, and we need highly talented and motivated people like you! At CRITICALSTART,
we live by three very basic principles: do what’s right for the customer, don’t do things that
suck, and do what’s right for our employees. That’s it! By concentrating on these three values,
we have built a lasting culture that delivers on promises to our people and our customers – and
they are the key drivers to our long-term success!

About the project:

Zero Trust Analytics Platform (ZTAP), is our core MDR product which is both used and licensed. It is a PaaS that is completely on AWS using the latest technologies from AWS. Primarily it is a large event collection and event categorization engine. Designed for scale and continuous updates – we update the platform at least once a day.


  • Expand Ukraine team.
  • Help the team release new features, fix bugs, that sort of thing. You’ll most likely own one or two sub-components of the overall system.
  • Use Python/Django – primarily for day-to-day programming.
  • Work with Postgres, Memcached, RabbitMQ, Elasticsearch.
  • Everything on AWS, using AWS services by default.
  • Development occurs with Docker, and so do production deployments.
  • Deal with Terraform that is well maintained and getting better every day.
  • There is an incredible focus on API design and maintainable code, expect to provide and receive lots of feedback.
  • Write complex code without complicating it.

Who you are:

  • You have about 5-8 years of Python/Django programming experience.
  • You understand how to write Pythonic code that is clean, maintainable – yet solves complex problems.
  • Talking about Locks, Mutexes, and Semaphores doesn’t make your brain hurt – as you will be working on distributed systems problems.
  • You have your own way of making mental models of complex systems. We have an incredibly distributed team, so having a model of what you are trying to accomplish and getting that through on the phone is crucial to your success here.
  • You have some solid Linux skills, not to perform Systems Administration but you know when to use grep versus having to write a program.
  • If you have little Python/Django experience but you’ve made the switch from/to programming language/framework many times in the past, awesome!
  • Incredibly clear in your English verbal and written communication.

Will be a plus:

  • Strong understanding of AWS and Terraform.
  • Elasticsearch querying, storing, and APIs.

Daxx offers:

  • Direct cooperation with the customer.
  • Dedicated HR/ Client Manager.
  • Employee Stock Options.
  • Employee Healthcare.
  • Regular corporate events.
  • An opportunity to drive significant shareholder, customer and employee value.
  • A constant stream of new things to learn.
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Rymma Holoborodko

Rymma Holoborodko

Kyiv Recruiter

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