CyberSecurity Engineer

NETHONE sp. z o.o.

contract of employment
14 00020 000 gross / mth.
B2B contract
14 00020 000 net (+ VAT) / mth.
  • Prosta 20, Wola, Warszawa
    Warszawa, Masovian
  • offer expired a month ago
  • contract of employment, B2B contract
  • full-time
  • specialist (Mid / Regular)
  • home office work
  • Immediate employment
  • remote recruitment
  • запрошуємо працівників з України
Запрошуємо працівників з України
Роботодавець відкритий для працевлаштування громадян України

NETHONE sp. z o.o.

Prosta 20



Technologies we use


  • JavaScript

  • Python


  • PostgreSQL

  • Linux

  • AWS

Operating system

About the project

We are looking for an Anti-Fraud Sheriff who wants to expand his expertise in data engineering, research, and domain knowledge. This role combines an analytical approach to identifying improvement areas and designing related solutions with a hands-on approach to ensuring those solutions are implemented. We look for a problem solver who likes to make things happen.

Your responsibilities

  • 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.

  • Propose and deliver PoCs with the team.

Our requirements

  • Tinkering mindset

  • At least two years of developer experience within a commercial product environment

  • Good command of Python and basic skills with JavaScript


  • 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

This is how we organize our work

This is how we work

  • in house
  • you have influence on the technological solutions applied

Development opportunities we offer

  • conferences abroad

  • conferences in Poland

  • external training

  • intracompany training

  • space for experimenting

  • substantive support from technological leaders

  • support of IT events

  • technical knowledge exchange within the company

  • time for development of your ideas

What we offer

  • Mission-driven business

  • Proprietary anti-fraud solution and cutting-edge, Machine Learning models

  • Clients from multiple sectors

  • Remote-first organization (work from wherever you want!)

  • Contract flexibility (Contract of employment or B2B - you choose)

  • 26 days off

  • Private medical insurance (Medicover)

  • Multisport Plus card

  • Regular feedback sessions with Team Leader and C-level

  • No dress code

  • Truly international team (10+ countries)

  • Team building events (online and offline)

  • Monthly budget for team meetings


  • sharing the costs of sports activities

  • private medical care

  • sharing the costs of foreign language classes

  • remote work opportunities

  • flexible working time

  • integration events

  • no dress code

  • employee referral program

  • charity initiatives

Our clients include Farfetch, Grover, Azul, Polish Airlines LOT, Booksy, Ramp Network and ING.

Working with high profile companies across multiple sectors and geographies, Nethone enables clients to run their businesses safely and efficiently, increasing their revenues and their end-clients’ satisfaction. We continually monitor cybercrime trends and techniques to stay ahead of fraudsters and provide our clients with the best possible anti-fraud solutions.

Are you willing to join our ambitious team of self-starters with the drive to get quality things done?

Join us and let’s build Nethone together!

NETHONE sp. z o.o.

As a company, we specialize in fraud prevention. We enable online merchants to sell more, earn more, and maximize every dollar they invest in risk management and customer acquisition. With us, you will experience a great variance of datasets - we protect Clients in e-commerce, crypto, ridesharing, digital lending, BNPL, and many more.

In this position, you’ll bring value by proposing and implementing solutions that help to mitigate fraud.

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