Konstantin M. Email & Phone Number

Cambridge, Massachusetts, US

- Front-end user-facing applications [JavaScript, React]- Data pipelines and APIs [Elixir, Ruby, Scala, Go]- Analytics and high-volume event processing [Apache Kafka, Druid, Flink, Spark]- Infrastructure and deployments [GitHub Actions, Terraform, Kubernetes, Flux, ArgoCD]- Cloud computing [AWS]

Los Angeles, California, US

- CI/CD workflows using Terraform and AWS CDK- Building deployment pipelines for internal and external services- Developing internal packages (Ruby, JS/TS, Go) to make API integrations reliable and easy- Writing documentation to help stakeholders get up to speed on new services and applications

Summerlin, Nevada, US

- Build backend APIs written in Ruby, Elixir, Go- Work with blockchain-based technologies (Bitcoin, Ethereum, smart contracts, Stellar)- Integrate DevOps workflows to help our teams stay productive and efficient

• ► Developer of Workerholic (https://workerholic.github.io): an open-source, multi-process, multi-threaded performant background job processor for Ruby applications.
• Engineered multi-threaded, multi-process background job manager, enabling developers to decouple their application processing logic to increase system performance by at least 3X using Ruby, Redis and JavaScript.
• Designed highly scalable architecture to support concurrent usage across 100+ servers for communicating with external APIs, performing CPU-intensive calculations or running over 2 million background tasks.
• Integrated system with modern Ruby frameworks (Rails and Sinatra) as well as custom applications to ensure support across 100% of Ruby-based platforms.
• Enabled multiple configuration options using CLI written in Ruby to provide developers with flexibility in increasing threads and processing power.

• Developed and deployed IT infrastructure for 1000+ students using enterprise-grade hardware (Cisco, Dell, Synology), resulting in a successful launch of school's digital collaboration lab.
• Collaborated with 6 teachers on educational software development and deployments using open-source tools such as Moodle, allowing 100s of international student every month to use digital collaboration lab.
• Procured hardware and software purchases and deployments, resulting in $10,000+ saved in technology costs.

• Configured and maintained multiple mission-critical nodes by utilizing Active Directory, bacula, nagios and multiple security solutions, resulting in launch of e-library system to public (serving 300 - 500 people / day).
• Setup enterprise mail servers for 500+ user environment with open-source software (Postfix, dovecot, amavis).
• Maintained heterogeneous infrastructure of 10+ servers (security patches, access policies) running Linux and Windows Server; reduced downtime for existing services and increased security of existing infrastructure.
• Managed backup strategies for 10+ mission-critical nodes using open-source tools like bacula as well as leading proprietary software (Acronis).