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Python Engineer (Senior)

Python Engineer (Senior)
B2B21 000 - 27 000 PLN NET
LOCATION + Remote Poland: Kielce, Kraków, Wrocław
Apply now

We are #VLteam – tech enthusiasts constantly striving for growth. The team is our foundation, that’s why we care the most about the friendly atmosphere, a lot of self-development opportunities and good working conditions. Trust and autonomy are two essential qualities that drive our performance. We simply believe in the idea of ​​“measuring outcomes, not hours”. Join us & see for yourself!

About the role

We’re hiring Python developers to create and maintain automation frameworks for validating algorithmic trading system accuracy and performance.

Python Advanced
Testing Regular
Angular or React Regular
English Advanced
View available projects
Project
Fidalgo
Project Scope

Project include developing a robust automated testing framework and performance monitoring web applications for a major investment bank. This requires collaborating with quantitative strategists and developers and interacting with algorithmic trading systems. These scalable solutions enhance performance and will be used by the bank’s development teams on a daily basis.

Key responsibilities
  • Develop and maintain Python-based automation frameworks to test and validate algorithmic trading systems for accuracy and performance.
  • Build full-stack web applications using React and Python APIs to help teams visualize test data, monitor system health, and analyze trading performance.
  • Design and execute performance testing solutions to stress test trading algorithms in development environments, tracking latency and capacity metrics.
  • Create AB testing and replay systems that analyze production logs against candidate releases to identify behavioral differences.
  • Implement gating mechanisms that ensure releases meet performance standards before production deployment.
  • Work with NoSQL datastores and relational databases to manage large volumes of trading and testing data.
  • Collaborate with quant strategists and trading teams to understand business requirements and translate them into technical solutions.
  • Maintain and improve CI/CD pipelines to support automated testing and deployment processes.
  • Contribute to code quality standards and testing practices across the engineering organization.
Tech stack

Python, ReactJS, noSQL

Team

The team is distributed between New York and London. While the functional manager is in New York, you have the flexibility to work during European business hours.

What we expect in general:

  • Strong proficiency in Python
  • Willingness to work with React for building internal web tools and apps that help teams visualise and manage test and system data
  • Ability to maintain and improve CI/CD pipelines to support automated testing and deployment processes.
  • Willingness to design and implement performance testing solutions, including stress testing and tracking latency/capacity metrics
  • Teamwork attitude
  • Good communication skills

Seems lots of expectations, huh? Don’t worry! You don’t have to meet all the requirements. What matter the most is your passion and willingness to develop. Apply and find out!

A few perks of being with us

Building tech community
Building tech community
Flexible hybrid work model
Flexible hybrid work model
Home office reimbursement
Home office reimbursement
Language lessons
Language lessons
MyBenefit points
MyBenefit points
Private healthcare
Private healthcare
Training Package
Training Package
Virtusity / in-house training
Virtusity / in-house training
And a lot more!

Apply now

Python Engineer (Senior)

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Current recruitment process: For the purpose of recruitment, I hereby give consent as per art. 6.1.a of the GDPR to processing of my personal data (other than that listed in art. 22 [1] § 1 Labour Code) by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at 23 Zofii Nałkowskiej Street, Rzeszów, 35-211. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that my personal data will be kept for the duration of the recruitment process and as regards any potential claims, for the period of 36 months maximum, and that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any time, but this withdrawal does not make the previous processing illegal*.(Required)*

Current recruitment process: For the purpose of recruitment, I hereby give consent as per art. 6.1.a of the GDPR to processing of my personal data (other than that listed in art. 22 [1] § 1 Labour Code) by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at 23 Zofii Nałkowskiej Street, Rzeszów, 35-211. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that my personal data will be kept for the duration of the recruitment process and as regards any potential claims, for the period of 36 months maximum, and that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any time, but this withdrawal does not make the previous processing illegal*.

(Required)
Future recruitment processes: I hereby give consent as per art. 6.1.a of the GDPR to the processing of my personal data by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at 23 Zofii Nałkowskiej Street, Rzeszów, 35-211, in order to use this data in future recruitment processes. I hereby agree to possible storage of my personal data for this purpose in Virtus Lab’s database for a period of 36 months maximum. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any point, but this does not make the previous processing illegal*.

Future recruitment processes: I hereby give consent as per art. 6.1.a of the GDPR to the processing of my personal data by Virtus Lab Sp. z o. o. (as Co-Controller for a full list of joint controllers, see Privacy Policy) with its headquarters at 23 Zofii Nałkowskiej Street, Rzeszów, 35-211, in order to use this data in future recruitment processes. I hereby agree to possible storage of my personal data for this purpose in Virtus Lab’s database for a period of 36 months maximum. At the same time I accept the Privacy Policy of the Data Controller. I acknowledge that I have the right to access this data or have it rectified or deleted on demand. This consent can be withdrawn at any point, but this does not make the previous processing illegal*.

Paulina Radzimowska
Coordinated by
Paulina Radzimowska
Senior IT Talent Acquisition Specialist
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Python Engineer (Senior)
B2B21 000 - 27 000 PLN NET
LOCATION + Remote Poland: Kielce, Kraków, Wrocław
Apply now
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