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CyberCube

Senior Full-Stack Engineer

CyberCube
Estonia · Internship · Not Applicable

About CyberCube:

  • The market leader in digital analytics 📊 with the mission of delivering the world’s leading cyber risk analytics 🌐 on one of the most critical risks of today and the future.
  • Exceptionally well-funded startup 💰 that has raised over $100MM from top-tier investors.
  • Used by 75% of the top 40 US and European cyber insurance carriers & surpassing 100 clients in 2023 with a >99% retention rate.
  • CyberCube and its products consistently earn industry recognition 🏆, including awards like Forbes America's Best Startup Employers 2025 and Cyber Risk Solution of the Year in 2025.
  • Senior leadership is committed to attracting, developing, and exciting exceptional people from diverse backgrounds and enabling them to work collaboratively across disciplines to do the best work of their careers.
  • At CyberCube, we drive ownership for excellence ✅, empowering our team to take initiative, deliver results, and continually raise the bar.
  • Named on Forbes’ America’s Best Startup Employers list three years in a row (2021, 2022, 2023)! 🎖️
  • Learn what it’s like to be part of CyberCube’s mission: Watch this leadership team interview! 🎥

We are looking for a Senior Full-stack Engineer to join our Core team with a “can do” attitude. While this is a full-stack role, the primary focus is on backend development using JavaScript.

As part of a distributed team, we value strong autonomy and trust in all our engineers. Team orientation and collaboration are essential skills we seek. Given the nature of our work and global collaboration, some flexibility in working hours is expected, including availability outside of standard 9–5 hours.

Responsibilities

  • Writing clean and maintainable code using best practices and the latest front-end and back-end technologies
  • Leading the design and implementation of software features from scratch
  • Coordinating tool and library selection, development environment improvements, and process refinements
  • Applying software development and testing best practices
  • Supporting internal stakeholders with troubleshooting efforts as needed

Qualifications

  • 4+ years of experience building full-stack applications with a React-based frontend with excellent UX, and an object-oriented backend using JavaScript/TypeScript or Java/Kotlin
  • Experience with relational databases (especially PostgreSQL), and hands-on experience with microservices and distributed systems (e.g., Docker and Kubernetes)
  • Strong knowledge of authentication and authorization principles
  • Passion for solving challenging problems and iterating quickly

Nice to Have

  • Experience with AWS, NoSQL databases, graph DBs, RabbitMQ
  • Experience with NestJS, AWS Lambda
  • Experience with Java/Kotlin microservice applications

Why You'll Love it Here

  • Play an instrumental role in reshaping one of the oldest industries in the world
  • Competitive salary, equity
  • Learning and development assistance
  • Vision and dental coverage
  • Extra vacation days during winter holidays
  • Flexible working hours and unlimited work-from-home option—work remotely as often as you like
  • Company-supported mentorship and secondment programs
  • Work abroad for up to 3 months with approval

Key Skills

Ranked by relevance

aws microservices postgresql docker react nosql ux
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Posted
Apr 23, 2026
Type
Internship
Level
Not Applicable
Location
Tallinn
Company
CyberCube

Industries

Software Development

Categories

Engineering Information Technology

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