> Markdown version of [/jobs/ext/1221133-senior-python-engineer](https://www.wearedevelopers.com/jobs/ext/1221133-senior-python-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Python Engineer - **Company:** OpenVPN - **Location:** Spain (Remote available) - **Contract:** Permanent contract - **Skills:** JavaScript (Programming Language), Application Programming Interfaces (APIs), Boost (C++ Libraries), Client Server Models, Communications Protocols, Protocol Stack, Computer Programming, Databases, Network Congestion, Relational Databases, Linux, Ember.Js, Virtual Private Networks (VPN), JSON, Python (Programming Language), Linux Servers, MySQL, Network Protocols, Open Source Technology, OpenVPN, Public Key Infrastructure, Webui, Software Engineering, SQLAlchemy, TCP/IP, Transmission Control Protocol (TCP), Twisted (Software), XML-RPC, Network Routing, Computer Networking Systems, Transport Layer Security, Load Balancing, Git, Performance Monitor, Asynchronous Programming, Restful APIs - **Published:** July 10, 2026 - **Apply:** https://es.indeed.com/viewjob?jk=2f565d63e315e735 ## About the Role 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, more important to your success in this position would be your proactive attitude and the ability to assume responsibility, take ownership and work independently., 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, Ember.js, 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) ## Description * Collaborating with product manager to refine feature specifications * Development and support of Linux-based server software (Python mainly) * Development of a web-based API (XML-RPC and REST mainly) * Collaboration with other developers on development and deployment * A working knowledge of python asynchronous programming ## Related Videos - [Unlocking the potential of Digital & IT at Vodafone](https://www.wearedevelopers.com/videos/602-unlocking-the-potential-of-digital-it-at-vodafone) - [Tips and Tricks for Working with JSON](https://www.wearedevelopers.com/videos/1229-tips-and-tricks-for-working-with-json) - [How a Small Team Shrank a Microsoft Monorepo by 94%](https://www.wearedevelopers.com/videos/1236-how-a-small-team-shrank-a-microsoft-monorepo-by-94) - [Recruitment Reinvented: Bold strategies and the $10K signing incentive](https://www.wearedevelopers.com/videos/1068-recruitment-reinvented-bold-strategies-and-the-10k-signing-incentive) - [Introducing JSON Structure](https://www.wearedevelopers.com/videos/100219-introducing-json-structure) - [Git for Code Reviews](https://www.wearedevelopers.com/videos/429-git-for-code-reviews) ## Related Articles - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [Best Countries for Software Engineers](https://www.wearedevelopers.com/magazine/267-best-countries-for-software-engineers) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [The 13 Best Python Libraries for Developers in 2025](https://www.wearedevelopers.com/magazine/371-the-13-best-python-libraries-for-developers-in-2025) - [Find a Developer Job: 12 Best Job Sites For Developers](https://www.wearedevelopers.com/magazine/165-find-a-developer-job-12-best-job-sites-for-developers) - [Where to Find Entry-Level Software Engineering Jobs](https://www.wearedevelopers.com/magazine/397-where-to-find-entry-level-software-engineering-jobs)