04/07/2026 updated

TG
60 % partially available

Data & AI Engineer | System Design · ML/AI Architecture

Halifax, Canada
Only remote
M.Sc. Physics
Halifax, Canada
Only remote
M.Sc. Physics

Profile attachments

Resume_Tomislav_Grbesic.pdf

Data ArchitectureMachine LearningAzure Machine LearningSystems DesignMachine Learning OperationsDatabricks
Data & AI engineer with 9+ years of experience. I design, build, and review data platforms and ML/AI systems - architecture through production. I've worked with startups and established manufacturers across Germany, Switzerland, the US, and Canada. Clients bring me in when they need someone who can evaluate the problem, choose the right approach, and build it - whether that's a lakehouse, a ML pipeline, a RAG system, an agent workflow, or the cloud infrastructure underneath.

What I bring:
  1. System design and data architecture (Databricks, Azure, GCP)
  2. ML/AI engineering: model evaluation, fine-tuning, RAG, agents, serving
  3. Production infrastructure: pipelines, orchestration, CI/CD
  4. PoCs and MVPs - iterative approaches, focused on proving value fast

Technologies: Python, Rust, SQL, PyTorch, Spark, Terraform, Pulumi, Prefect, Docker, Kafka, FastAPI, Databricks.

Client references available. If you have a data or AI project in mind - feel free to reach out.

Experience

Professional experience5 - 10 years
Freelancer since2022

Languages

GermanNative speakerEnglishFluentCroatianNative speaker

Project history

Data & Machine Learning Engineering Consultant

https://www.parable.work/

Internet & IT

10-50 team member

Data architect

https://www.callista.ch/
- Lead the consulting on new data architecture (Data Warehouse vs Data Lakehouse) for a German manufacturing company & facilitated process for adoption of DLH architecture on Azure + Databricks
- Planned and developed a proof of concept logical data warehouse on Azure (Synapse, ADLS)

Data Engineer and Airflow Architect

ECC AG/Deutsche Börse AG

Banking & Financial Services

  • automated Kibana Monitor as well as Grafana Dashboard generation as part of a monitoring and alerting migration to OpenShift
  • setting up Airflow on Kubernetes/OpenShift

Solo Founder

Data Engineer

Zattoo
Zattoo is one of the leading TV streaming providers in Europe and was acquired by TX Ventures.
* Designed and built a data mart for subscriber activity metrics as part of company wide effort to
consolidate company success metrics (with Airflow and BigQuery).
* Contributed to GCP based data warehouse redesign: introducing Kafka, a data lake and BigQuery.
* Set up Airflow as the new main orchestration tool along with best practices as well as a Docker based
development environment.

Data Engineer

Motionlogic
Motionlogic was a Deutsche Telekom owned startup offering traffic & location reports.
* Designed and implemented a query engine using PySpark, HDFS, Redis & MongoDB to produce
individually billable reports which largely expanded the product line
* Collaborated closely with Data Science team on quality and performance improvements of the core
business algorithm for trip/activity extraction from movement chains and thereby ensured product
satisfaction of some of Europe's largest telecommunications companies. Implemented in PySpark to
process more than 3TB per day for on-premise cluster with >1000 cores, 60 servers, >10 TB RAM.

Quality Control Analyst Intern

i4i
i4i is a VC-funded startup providing structured content apps for the life sciences industry to solve compliance.
* Implemented extensive integration and regression testing in Python and maintained documentation.

Certificates

Microsoft Certified: Azure Data Engineer Associate

Microsoft

2022

Databricks Certified Developer: Apache Spark with Python

databricks training

2019

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