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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.
21 листопада 2022

Senior Java Developer (вакансія неактивна)

Київ, Львів, віддалено

We are the team that created OpenVPN, the industry-standard VPN protocol now used by most commercial VPN providers worldwide. We are looking for a rock star to push the product further that millions of people worldwide will interact with daily! You should have a solid working knowledge of Java, Tomcat, and databases, excellent in understanding security topics, be familiar with TCP/IP networking and SSL VPN, possess a solid conceptual foundation in the development of self-hosted cross-platform redistributable solutions, and have network programming understanding on Linux development environment.

You will join a team responsible for the requirement specifications, system specifications, software development, and maintenance of several critical security-related redistributable systems.

We are looking for someone who has:

  • 4+ years of commercial programming experience;
  • 4+ years of experience with Java;
  • Recent experience in developing redistributable cross-platform systems on Java;
  • Experience with Spring Framework and dealing with REST API;
  • Diverse experience with Apache Tomcat, including configuring, tweaking, and troubleshooting complex setups;
  • Experience with embeddable RDBMS, SQLite is preferable;
  • Experience with embeddable messaging in Java (like ZeroMQ);
  • Good hands-on in Bash;
  • Good understanding of networking;
  • At least upper-intermediate English, both spoken and written;
  • Excellent communication abilities.

Nice to have:

  • Experience with distributed redistributable systems and clustering;
  • Experience with time series databases and/or OLAP databases (like ClickHouse);
  • Security topics hands-on with Spring Security (SAML, OAuth2);
  • Experience in the security space, specifically PKI, encryption, x.509 certificates, SSL;
  • Experience with performance testing (Apache Benchmark, JMeter, Gatling);
  • Experience in hardening redistributable systems (reproducible builds, obfuscation, etc.);
  • Experience in developing both console applications and modern REST services on Spring Boot
  • Experience in designing update processes for remote redistributable system

Responsibilities:

  • Full-cycle development of cross-platform redistributable software with a primary focus on Linux, including development from scratch and maintaining existing services;
  • Extending 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 🤗

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