We are the provider of next-generation secure and scalable communication services. Our award-winning open source VPN protocol has emerged to establish itself as a de-facto standard in the open source networking space with over 50 million downloads since inception.
27 липня 2022

Senior Java Developer (вакансія неактивна)

Львів, віддалено

We are the team that created OpenVPN, the industry-standard VPN protocol now used by most of the commercial VPN providers worldwide. We are currently looking for a rock star to push further the product that millions of people around the world will be interacting with on a daily basis! You should have a strong working knowledge of Java, REST APIs, and databases, excellent in understanding security topics, be familiar with TCP/IP networking, SSL VPN, and distributed systems, possess a solid conceptual foundation in the development of distributed and cloud-computing systems, and have network programming understanding on Linux development environments.

You will join a team that is responsible for the requirement specifications, system specifications, software development and maintenance of several critical security-related cloud services.

We are looking for someone who has:

  • 4+ years of commercial programming experience;
  • 4+ years of experience with Java;
  • Experience of developing modern REST services on Spring Boot;
  • Security topics hands-on with Spring Security (SAML, OAuth2);
  • Experience with RDBMS, NoSQL storage (MongoDB);
  • Experience with deployment on Docker and AWS;
  • Good understanding of networking;
  • At least upper-intermediate English, both spoken and written;
  • Excellent communication abilities.

Nice to have:

  • Experience with messaging in Java (Kafka, RabbitMQ, etc.);
  • Experience working with AWS SDK in Java;
  • Hands-on with plain Java sockets or WebRTC / WebSockets;
  • Hands-on work experience with Linux platforms;
  • Experience in the security space, specifically PKI, encryption, x.509 certificates, SSL;
  • Experience with performance testing (Apache Benchmark, JMeter, Gatling);
  • Open Source experience.


  • Full-cycle development of Linux-based distributed server software, including development from scratch and maintaining existing services;
  • Development of a web-based API (using JSON and REST) for management of product systems;
  • Collaboration with other developers on development and deployment.

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

— Competitive salary;
— Paid vacation 18 working days off per year + national public holidays;
— Unlimited paid sick leaves;
— Great modern office space in the city center (Lviv and Kyiv);
— Flexible working schedule, full remote work possible;
— Working directly with colleagues from Silicon Valley and around the world;
— Team trips, certification and events compensation, medical insurance, sports etc.

Candidate journey:

🤔 Recruiting screening -> Tech interview (I) -> Tech Interview (II) -> Interview with Operations Manager -> Offer 🤗