Nord Security
Nord Security
1,001 – 5,000 Employees
B2BCybersecuritySaaS
Nord Security develops subscription software for digital privacy and cybersecurity across consumer and business use cases. Its portfolio includes NordVPN for private browsing and threat protection, NordLayer for business network security, NordPass for password management, NordLocker for encrypted cloud storage and sharing, Coveron for identity theft protection, and Saily for secure eSIM connectivity while traveling. The company operates across cybersecurity, SaaS, and B2B markets, with products centered on encryption, online privacy, secure access, data protection, and identity monitoring.

Senior Backend Engineer (Go Transition) – Warsaw Hybrid

Join Nord Security to build Go microservices for Saily, a global eSIM connectivity platform. Create personalization, experimentation, analytics, and high-performance API capabilities.

Description

  • Architect and build a sophisticated microservices platform for a new eSIM product
  • Develop capabilities for multidimensional personalization, A/B testing, and analytics
  • Write, maintain, and improve a high-quality codebase
  • Optimize application performance and continuously refine implementation quality
  • Mentor teammates on engineering practices and provide technical direction
  • Help shape the team’s long-term technical vision and objectives
  • Contribute to research and development activities as needed
  • Apply AI agents across specification, development, analysis, testing, and iteration
  • Partner with cross-functional colleagues to maintain clear and effective communication
  • Work with engineering, product, and design specialists across teams

Requirements

  • More than four years of backend development experience
  • Professional experience with PHP, Python, C#/.NET, Java, or Kotlin
  • Understanding of system design and suitable architectural patterns
  • Kubernetes and microservices architecture experience is advantageous
  • Hands-on experience with SQL databases such as MySQL and PostgreSQL
  • Experience using NoSQL technologies including Cassandra and Redis
  • Previous experience working with Kafka
  • Enthusiasm for designing clear, intuitive, and easy-to-use APIs
  • A strong product mindset centered on user problems, outcomes, and impact
  • Curiosity about AI and interest in working with AI agents
  • Eligibility and authorization to work from Poland
  • Availability to work from the Warsaw office three days per week

Benefits

  • Professional training, mentorship, and opportunities for career development
  • Additional vacation and sick leave, plus time off for personal needs
  • Private health insurance fully covered in Lithuania and Poland
  • Complimentary subscriptions to Calm, Headspace, and Mindletic
  • Resilience and mindfulness training programs
  • Access to in-house gyms, sports cards, online workouts, and personal coaching
  • Company-wide workation abroad
  • Work-from-anywhere flexibility
  • Gifts for birthdays, weddings, and new family members
  • Children’s summer camps and flexible scheduling
  • Team-building activities and company events
  • Access to Vilnius headquarters amenities, including a coffee bar, gyms, children’s room, music room, and massage chairs

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