Software Engineer for Back-End Development

Tallinn / Tartu / Estonia

Guardtime is looking for
Software Engineer for Back-End Development

About Guardtime

Guardtime is a global company developing the core technology, applications, and tools for ensuring the integrity of systems, processes, and data, at a massive scale, in real-time. We started in 2007 with the goal of eliminating the need for trusted authorities within Estonian Government networks. Over the last decade, Guardtime has built a proprietary technology stack, on which products have been built and deployed in production by some of the most demanding clients on earth. Today our KSI Blockchain technology is applied in defense, telecom, healthcare & life sciences, space, financial services, energy, government, and other areas.

About The Role

As a Software Engineer your role will be developing and maintaining both in house and customer facing applications/integrations in the blockchain security space. Development can focus from initial PoC to full production product, building upon the KSI foundation layer to solve interesting real-world problems in a variety of sectors.

This role represents an excellent opportunity to be hands on and involved in the latest cybersecurity and blockchain techniques and technologies and suits an engineer who is interested and committed.


  • Build prototypes for visualizing and validating concepts
  • Develop and maintain products and tools based on existing technologies
  • Consult external partners on best practices and Guardtime technology
  • Support team members in accomplishing mutual goals
  • Translate software requirements into stable, working, high performance software
  • Play a key role in architectural and design decisions, building toward an efficient architecture


    • Bright, self-starter, ability to work autonomously and proactively

    • Strong development background with scalable systems

    • Knowledge of common practices and core design patterns

    • Experience in developing web services or database driven applications

    • Experience in rapid prototyping, agile development


  • BSc or MSc degree in CS or equivalent years of work experience
  • Strong design/coding skills in object-oriented languages (preferably Java or GoLang)
  • Knowledge of data structure design and concurrent programming techniques
  • Familiarity with networking and data format standardization
  • Strong understanding of InfoSec
  • Confidence in expressing product development ideas
  • Ability to work under own initiative and also as part of a small team
  • Confidence in expressing product development ideas to a variety of business and technology focused people
  • Excellent communication skills, willingness to work in the multicultural and multi-language company
  • Fluent in English

For additional information send e-mail to: [email protected]

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