Darius Mejeras

Senior Software Engineer

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Senior Software Engineer with expertise in cloud infrastructure, systems programming, and scalable distributed systems. Experienced in building high-performance applications using Go, Kubernetes, and low-level Linux technologies. Strong background in multi-cloud environments and container runtimes.


Work Experience

Software Engineer

CAST AI | June 2022 - Present

Currently building cloud storage optimization solutions for Kubernetes environments. Previously led the design and development of workload migration solutions and was part of the security product team architecting foundational components of CAST AI’s security offering.

  • Container runtimes and Kubernetes internals expertise
  • Low-level Linux systems and eBPF programming
  • Multi-cloud experience (Azure, AWS, Google Cloud)
  • Fast-paced startup environment and rapid product delivery

Staff Engineer

Nord Security | May 2020 - June 2022

Responsible for fast and secure OAuth2 gateway serving the entire NordSecurity product suite. Led development efforts and mentored junior engineers on Go-based infrastructure services.

  • OAuth2 protocol implementation and security architecture
  • Team leadership and technical mentoring
  • High-scale authentication and authorization systems

Software Engineer

HomeToGo | November 2019 - May 2020

Integrated ML models developed by data scientists into search engine ranking system using Go, Elasticsearch and PHP. Focused on improving search relevance and performance for travel accommodation platform.

  • Advanced Go programming and system integration
  • Machine learning model integration and deployment
  • Search engine optimization and performance tuning

Software Developer

Aardvark Technologies | March 2019 - November 2019

Built microservices architecture with Golang and developed frontend applications using VueJS and AngularJS. Delivered full-stack solutions for various client projects.

Software Developer

Paysera | July 2017 - February 2019

Developed anti-money laundering system with dynamic rule engine backed by Elasticsearch. Built critical financial compliance and transaction monitoring systems using PHP and Symfony framework.

Software Developer

EGROUP EU | October 2016 - June 2017

Developed loan management SaaS platform using PHP. Built and maintained comprehensive financial software solutions for loan origination and management workflows.