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Senior Python Engineer

  • Remote
    • Warsaw, Mazowieckie, Poland
    • Praha, Praha, Hlavní město, Czechia
    • Lviv, Lvivska oblast, Ukraine
    +2 more
  • Backend - Python

Job description


As one of the world leaders in the cybersecurity space, OpenVPN is looking for a senior systems and software engineer with a strong working knowledge of Python and databases.

The ideal candidate will possess a solid conceptual foundation in the development of client-server software with an emphasis on network routing, load balancing, secure APIs, congestion control, reliability, performance monitoring, and reporting.

The candidate should have 5 or more years of programming experience, preferably on Linux server environments.
Also, your proactive attitude and the ability to assume responsibility, take ownership, and work independently are more important to your success in this position.

We are the team that created OpenVPN, the industry-standard VPN protocol now used by most commercial VPN providers worldwide.


You will play a key role in a team developing OpenVPN Access Server, our full-featured business VPN solution that accommodates a wide range of configurations, including remote access, site-to-site VPNs, and enterprise-scale remote access solutions with load balancing, failover, and fine-grained access controls.


Your contribution:

• Development and maintenance of Linux-based server software

• Development of REST API in Python3/FastAPI, for a React frontend

• Collaboration with other developers on development and deployment
• Take responsibility of developing new features

Job requirements

• A working knowledge of Python asynchronous programming
• Strong programming experience on Python 3
• Solid experience in JSON and REST API development on both server and client-side
• Knowledge of HTTP, HTTPS
• Experience with RDBMs (MySQL, SQLalchemy)
• Experience with Git and the standard software development cycle
• General knowledge of SSL VPNs
• Sufficient general knowledge of encryption, PKI and other security concepts
• At least upper-intermediate level of English, both spoken and written
• Outstanding communication & team working skills

As a plus
• Knowledge of the following communication protocols: TCP/IP stack (UDP and TCP), sockets, and other networking protocols
• Strong networking experience on Linux
• Experience with Boost, React, Twisted
• Deep understanding of the Linux network stack and kernel networking modules such as xfilter/netfilter
• Open Source experience
• Experience in programming web UI (HTML/CSS and Javascript)


Our philosophy is that we are a small, closely-knit team, and we care deeply about you:

  • Competitive pay rates
  • Fully remote work environments
  • Self-managed time off.
  • Team trips and special events

At OpenVPN, we pride ourselves on our commitment to creating innovative and secure networking solutions. If you join us, you will have the unique opportunity to shape the product that millions worldwide will interact with daily.

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