About Oleksandr
I build production-grade LLM agents that automate customer support, analytics, and infra ops. 20 yrs full-stack & cloud.
- Dev stack: Python • JS • ReactJS • Node • PHP • Go
- DevOps stack: Kubernetes • Terraform • AWS / GCP / Azure
- AI Stack: AWS Bedrock • OpenAI • LangGraph (3 projects) • vector DBs
What I Deliver
Production-Grade AI & Autonomous Agents
LLM-powered agents that automate decision-making, customer support, and ops—secure, observable, self-learning.
End-to-End Software Engineering
Architect and code web services, APIs, and data pipelines. Write tests, containerize, and own the deploy.
DevOps & SRE Excellence
CI/CD that ships daily, SLO-driven monitoring, blameless incident response—keep SLAs rock-solid.
Cloud Cost & Performance Optimization
Right-size compute, lock in discounts, enable autoscaling—pay for usage, not idle capacity.
English
Native or bilingual
German
Conversational
Ukrainian
Native or bilingual
Russian
Native or bilingual
Can work on-site
Berlin (up to 30km)
Experience
- Shyftplan GmbH — Shift-Scheduling SaaSDevOps EngineerNovember 2022 - September 2024 (1 year and 10 months)Migrated legacy Elastic Beanstalk + Lambda stack to EKS with ArgoCD GitOpsDeploy time dropped 20 min → < 3 min; uptime now 99.99 %Platform powers rosters for Siemens, Bosch, Miele, Mercedes-Benz (tens of thousands of users)
- TotalEnergies / Circle KSoftware Engineer / DevOpsSeptember 2022 - May 2025 (2 years and 8 months)Built green-field data platform (S3 → Lake Formation → Redshift + Databricks) for worldwide retail analyticsAutomated ingest of 4 TB /day, cut ad-hoc query latency ≈ 70 %Wrote Terraform IaC, hardening, and ran workshops for in-house devs
- interstruct AGDevOpsJuly 2022 - February 2024 (1 year and 7 months)Vodafone Sales Portal (via Interstruct AG)
- Rolled out bare-metal Kubernetes, Jenkins CI/CD, and ArgoCD delivery for 15 k daily users
- Mean-time-to-recover incidents now < 10 min; zero data-loss events over two-year run
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Education
- Master's in Computer EngineeringTNEU, Ukraine2013