Illia Rohalskyi
Machine Learning Engineer @Hohenstein Group
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WORK HISTORY
Machine Learning Engineer @Hohenstein Group
DE
Sole technical lead for multiple applied ML R&D projects (IMPRESS, ImproClean, AIMFiltech), delivering full end-to-end systems from scratch, including ML development, infrastructure design, deployment, and monitoring.• Architected and deployed secure, scalable AWS-based systems using services such as S3, ECS, Lambda, Step Functions, IAM, CloudWatch, and VPC, delivering cloud-native solutions under tight constraints of data availability, compute budget, and internal IT policies.• Acted as in-house AWS, ML, and MLOps consultant—responsible for evaluating project feasibility, estimating resource requirements, and owning all architectural decisions with full technical autonomy granted by leadership.• Independently built infrastructure for data ingestion, model training, and inference—all running on AWS. Delivered production-ready ML systems without external support or DevOps assistance.• Maintained weekly 1-on-1 sessions with my manager to report progress and teach core concepts of cloud architecture, data workflows, and ML systems through practical live demos and theoretical presentations covering security, reliability, and scalability. Raised AWS technical awareness within the team.• Adapted AWS-based solutions to align with internal security expectations and organizational constraints. Despite strong IT department resistance to cloud usage, ensured all implemented systems followed secure practices and demonstrated compliance, even without formal support.• Built custom ETL pipelines to ingest LabView Excel data into local databases and developed a standalone dashboard prototype for real-time operational insights. Designed, developed, and maintained the entire solution independently as a proof of concept.• Delivered ahead of schedule across all projects as a solo engineer, consistently exceeding expectations in both speed and system quality.
EDUCATION
National Technical University "Kharkiv Polytechnic Institute"
Bachelor's degree
Technical University of Applied Sciences Würzburg-Schweinfurt (THWS)
Computer Science
ABOUT ILLIA ROHALSKYI
I build AI systems that actually work – not just experiments. As an ML Engineer, I…
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