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CyberSec Engineer

About the role

Nethone is looking for a highly ambitious person to continue our growth over the coming years. We are working in the very fast-moving space of cybersecurity which poses very specific challenges in terms of business development. Although very challenging, this is a space with a very bright future. Nethone is one of the fastest-growing tech companies in the CEE region.


Fraud Intelligence is a team that connects Nethone with frauds.

We use feedback from customers and data and internal research as input and generate ideas and solutions that improve detection.

  • We research methods used by fraudsters and find weak points in their modus operandi
  • We are creating new solutions used for fraud detection based on the customers’ data/feedback mixed with the team’s expertise
  • We were brainstorming next-generation detection solutions capable of covering multiple fraud use cases. It mixes technical knowledge, fraudster modus operandi, and data capabilities
  • Diving deep into the technologies used by fraudsters - sometimes reverse engineering, deep data analysis, finding blind spots, and following new changes
  • Ideas are often forged into Proof of Concept (PoC) that verifies the initial assumptions. In some cases, however, the change might require support from other teams
  • Everything changes - fraudsters, tools, and technology - this is why minor tweaks and adjustments are usually needed after we apply the solution to the operational data. We also review the answers over time to stay ahead of the fraudsters in the race for detection


Marcin Zubrycki

Senior Product Manager

Fraud prevention systems succeed with quick adaptation to ever-changing situations. Traditional engines are no longer enough in this dynamically changing environment where fraud patterns change from day to day. In Nethone, this idea has been with us since our inception. We are looking for talented people to join our Fraud Intelligence Team to fight fraud with the power of Data.

Our technology stack

Back end
Python 3
Development process


  • Converting ideas into working solutions
  • Research and brainstorm together to identify creative new ways of detecting fraudsters 
  • There is no limit if you want to dig deeper. Fancy some reverse engineering? Sure. Want to look into the data from another perspective? You got it. Find your perfect spot to protect the users of the Internet 
  • Independently propose and deliver PoCs
  • Oversee feature development from conception to delivery
  • Ensure reliability and performance of the tech stack


  • Tinkering mindset
  • At least two years of developer experience within a commercial product environment
  • Good command of Python and basic skills with JavaScript
  • Nice to have:
    • Understanding how networks work and the architecture of the internet
    • Knowledge of browser, mobile, and internet security
    • Low-level knowledge of how operating systems (Linux, macOS, Windows, iOS, Android) work
    • Ability to lead quality technical discussions and brainstorming sessions
    • Previous experience in an R&D position
    • Understanding and practical knowledge of machine learning
    • Experience handling non-trivial traffic volume and data set
    • Experience in malware analysis and code deobfuscation
    • Experience in developing fingerprinting techniques
    • Experience with cloud platforms (AWS, GCP, or Azure)
    • Understanding of database systems
    • Experience with PostgreSQL

We offer

Flexible working hours

Morning birds, night owls and people working from another continent feel equally comfortable

Remote-first culture

and truly international team (+10 countries)

Self development

Cash awards for the quarter's best employees, funding for development materials and trainings

Team building

Company-wide meetings in person, budgets of each team for its own integrations, cyclical office integrations

Health and wellness

Taking care about employees’ mental and physical health. Multisport and health insurance

English classes

English is our main language of communication and our employees are able to improve their skills by attending free classes

Haven't found the right job role for yourself?

We are constantly looking for talented people to join our team. Having any questions about current job openings? Or you haven’t found an interesting offer but still feel Nethone is a place for you? Send us your CV!

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