Oleksii Diian

About Oleksii Diian

Major technical skills: Architecure and development. Web applications, REST and RPC services, high load / fault tolerant / distributed / client-server apps, data-oriented apps.Skills in analyzing requirements which hasn’t a clear definition, able to dive quickly into domain area knowledge, always try hard to understand client needs, can lead development team, like to work with challenging tasks, strong team player.Programming Languages (present): JavaScript, Python, SQL, Bash, UMLProgramming Languages (past):C#, C, C++, x86 / x87 FPU Assembly, PowerShellTechnologies (present):Python, Flask, Celery, Gevent, SQLAlchemy, SocketIO, PySide, ctypes, cffi, py.test, mockTechnologies (past).NET, Mono, ASP.NET Web Forms / MVC, NHibernate, Silverlight, WCF, Parallel LINQ, Rx.NET, IoC Frameworks, Mocking Frameworks, P/InvokeStorage systems: MySQL, MS SQL Server, MS SQL Server CE, SQLite, Oracle, PostgreSQL, Redis, MongoDB, Cassandra, Riak, PouchDBTools (present):Git, Amazon ELB/ELBv2/EC2/ECS/RDS/CloudFormation, uWSGI, Gunicorn, Sentry, Fabric, Nginx, Graphite, ELK Stack, Upstart, Systemd, LSB Init Scripts, Ubuntu, Alpine, Docker, Coreutils, Tmux, Vim, etc Tools (past): IIS, TFS, VSS, SVN, Visual Studio 6.0+, Borland C++ Builder 5-6, Eclipse.NET Reflector, NAnt, Fiddler, Wireshark, WinDbg, SOS Debugging Extension, etcTo recruiters:Since 2011 I\'ve switched away from.NET / Microsoft into the Linux stack and have no interest in moving back.

Experience

1. Cloud Solution Architect

   Global Payments Inc.

   May 2021 — Present · Charlotte, NC, US

   Aug 2024 - Present, AI and Advanced Analytics:1. Established reference architecture for Gen AI Chatbot projects, one for AWS and another one for Google Cloud.2. Developed building blocks in Terraform that enables rapid deployment of Gen AI Chatbot project including VPC network, firewall, load balancer, SSL cert, ingress WAF, egress gateway, Google Cloud (AI) Model Armor, IAM service accounts, Google Cloud Run services for inference/ingestion pipelines, vector/metadata/session stores, container registry.3. Bootstrapped one Gen AI project in AWS Cloud, delivered two Gen AI projects in Google Cloud.4. Streamlined change management process by onboarding five AI/ML engineers into DevOps practices.May 2021 - Aug 2024, Enterprise Architecture:1. Completed architecture design reviews as a voting member of the enterprise architecture committee.2. Ensured that all proposed software designs are inline with corporate strategy, technology standards and meet quality of service, resiliency.3. Provided consulting services on architecture design and integration efforts across different business units.4. Contributed, maintained, adopted enterprise-wide technology standards, patterns, reference architecture models.5. Designed an architecture for credit card issuing business for PCI near-realtime data replication from IMS, VSAM, DB2 on IBM z15 mainframes to AWS Cloud in collaboration with Chief Enterprise Architect, Security Architect, Mainframe Systems Consultant, Compliance team.6. Developed reference architecture and opinionated, preconfigured building blocks in Terraform/Kubernetes for VPC Network, Firewall, Google Kubernetes Engine, Istio, Prometheus, Grafana, Jaeger, Kiali.7. Engaged with software, cloud vendors and service providers for technology evaluation of various SaaS, PaaS, IaaS offerings.

Education

• Kharkiv Medical College No.1

  Junior Specialist, Medicine

  1999 — 2002

• Kharkiv National University of Radio Electronics

  Master, Computer science, Computer systems analyst

  2003 — 2009