Adrian Calma - Senior Consultant

Q: Where is Adrian based?

Adrian is based in Berlin, Germany and can operate in on-site , hybrid , and remote work models.

Q: What languages does Adrian speak?

Adrian speaks the following languages: Romanian (Native), German (Advanced), English (Advanced) .

Q: How many years of experience does Adrian have?

Adrian has at least 5 years of experience. During this time, Adrian has worked in at least 8 different roles and for 8 different companies . The average length of individual experience is 1 year and 8 months . Note that Adrian may not have shared all experience and actually has more experience.

Q: What is Adrian's latest experience?

Adrian's most recent position is Senior Consultant at DB Systel GmbH .

Q: What companies has Adrian worked for in recent years?

In recent years, Adrian has worked for DB Systel GmbH , DB Netz AG , AlphaPilots , German Deep Tech Institute , and Annotly UG (haftungsbeschränkt) .

Q: Which industries is Adrian most experienced in?

Adrian is most experienced in industries like Information Technology (IT) , Retail , and Agriculture . Adrian also has some experience in Transportation and Logistics , Professional Services , and Aerospace and Defense .

Q: Which business areas is Adrian most experienced in?

Adrian is most experienced in business areas like Information Technology (IT) , Product Development , and Quality Assurance (QA) . Adrian also has some experience in Business Intelligence , Strategy and Planning , and Project Management .

Q: What is Adrian's education?

Adrian holds a Doctorate in Computer Science from University of Kassel , a Master in Computer Science from University of Kassel and a Bachelor in Computer Science from University of Kassel .

Q: Does Adrian have any certificates?

Adrian has 4 certificates . Among them, these include: Certified SAFe® 6 Agilist , Professional Agile Leadership™ - Evidence-Based Management™ (PAL-EBM) , and Professional Scrum Product Owner™ II (PSPO II) .

Recommended expert

Berlin, Germany

Experience

Aug 2023 - Present

2 years 7 months

Senior Consultant

DB Systel GmbH

Spearheaded the development of MLOps and crafted MLOps strategies
Guided market exploration efforts regarding MLOps
Managed requirements

Aug 2023 - Feb 2024

7 months

Germany

Product Owner MLOps; MLOps & ML Expert – Support in market exploration; Requirements Management – Data Factory

DB Netz AG

Crafted the architecture of the data flow, from data acquisition to model deployment
Introduced Scrum within the team
Deployed Kubernetes from scratch, on-premise
Deployed Kubeflow and set up Prometheus for monitoring
Developed a REST API with FastAPI for automatic triggering of pipelines
Managed stakeholders and wrote and prioritized user stories
Evaluated trials and test versions with a focus on MLOps and annotation
Prepared bidder discussions focusing on MLOps
Supported various use cases with a focus on data management
Defined black box system requirements and white box subsystem requirements for the ML platform
Conducted requirements analysis and management

Feb 2023 - Feb 2023

1 month

Consultant for the MVP of the Airplane Price Evaluation Tool

AlphaPilots

Selected, cleaned, and pre-processed data
Developed a machine learning model to estimate airplane prices
Advised on additional data sources, MVP improvement, and feature usage tracking

Aug 2022 - Sep 2022

2 months

Business Development for potential LiDAR Use Cases

German Deep Tech Institute

Evaluated over 90 potential business cases
Conducted market size and trends analysis, competitor analysis, and overall evaluation for six selected cases
Generated three new business cases
Performed customer development leading to the first prototype
Created initial solution concept in Figma as a clickable wireframe

Sep 2021 - May 2022

9 months

CEO – Tech and Business Development; Product Owner; MLOps Engineer

Annotly UG (haftungsbeschränkt)

Led business development and implementation of a SaaS/mobile app for early plant disease detection
Conducted over 50 customer interviews for mobile app development and performed product backlog refinement, market analysis, and customer interviews
Developed a mobile app with feed alerts for farmers, managed UI implementation, and built the backend with NestJS and GraphQL
Refined product backlog and matched geospatial RADAR data to parcels to estimate NDVI using classification and regression algorithms
Supervised a student assistant
Implemented an internal REST API to communicate with PostgreSQL (including PostGIS) as a Dockerized microservice
Determined stress regions in precision farming using satellite data (NDVI) and implemented an outlier detection algorithm

Jun 2020 - Feb 2023

2 years 9 months

Senior Machine Learning Engineer – Human-in-the-Loop; Product Owner

Signatrix GmbH

Implemented active learning in combination with deep learning and managed the annotation team
Communicated, considered, and evaluated stakeholder requirements
Evaluated and optimized the internal annotation process and managed the annotation team
Conducted exploratory data analysis and data cleaning of existing datasets
Evaluated annotation quality and generated datasets for deep learning tasks
Deployed a completely new product within two weeks after requirement definition
Performed customer development leading to updated requirements for the self-checkout product
Managed accounts for a large retail customer
Conceptualized and wrote a grant proposal and conducted pricing analysis

Mar 2020 - Apr 2020

2 months

Proof of Concept Developer for a SaaS Organizing Events

evesync

Built a SaaS solution for online event management covering sponsors, budgets, and speakers
Conducted customer and business development

Jan 2020 - Feb 2020

2 months

Consultant for Human-in-the-Loop

Berlin based Startup

Improved human-in-the-loop approach by optimizing data selection strategy and annotation processes for video footage

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Information Technology (5.5 years), Retail (2.5 years), Transportation (0.5 years), and Agriculture (0.5 years).

Information Technology

Retail

Transportation

Agriculture

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (5 years), Product Development (3.5 years), Quality Assurance (3 years), Business Intelligence (2.5 years), Strategy (1 year), and Project Management (0.5 years).

Information Technology

Product Development

Quality Assurance

Business Intelligence

Strategy

Project Management

Skills

Soft Skills

Product Management And Ownership. Led Cross-functional Teams In The Development And Deployment Of Mlops Solutions, Driving Stakeholder Alignment And Prioritizing User Stories For Optimal Product Delivery.
Team Lead. Cto And Ceo Startup Experience With Teams Of Up To 9 Persons (Tech, Sales, And Marketing).
Mentoring And Consultancy. Technical Guidance For The Founders Of Iurcrowd, A Legal Tech Startup Based In Berlin, On Identifying Resources And Exploring Development Options For Their Mvp; Spearheading The Development Of Mlops Strategies And Providing Market Exploration Support For Large German Corporations.

Technical Skills

Human-in-the-loop (Active Learning). Longstanding Experience With Human-in-the-loop (Active Learning) Approaches, Including Annotator Management.
Machine Learning And Pattern Recognition. Comprehensive Knowledge With Projects In Object And Outlier Detection, And Classification.
Software Engineering (Python). Profound Knowledge In The Conception Of Software Frameworks With Realized Applications In The Areas Of Fintech And Precision Farming.
Development And Operations (Devops). Multiple Years Of Running Python Microservices In A Cloud Environment (Deployment, Containerization, Etc.).

Programming Languages

Python – 6 Years. Daily Usage For Data Engineering, Machine Learning, And Microservices.
Postgresql – 6 Years. Design And Daily Usage Of Inter-table Queries, Including Postgis Queries.
Java – 5 Years. Co-developing A Data Analysis Framework.
C/c++ – 9 Years. Learning And Teaching Relevant Projects.
Javascript – 2 Years. Precision Farming Mvp With React Native And Nestjs.

Frameworks And Technologies

Pandas – 5 Years. Exploratory Data Analysis And Cleaning Of Heterogeneous Data.
Numpy – 5 Years. Faster Array Operations Through Vectorized Operations.
Scikit-learn – 5 Years. Application Of Ml Models For Microservices.
Sqlalchemy – 3 Years. Creating The Orm Systems For The Software Frameworks.
Rest – 3 Years. Internal Rest Api For Microservices With Fastapi.
Tensorflow – 1 Year. Usage With Tensorflow Object Detection Api.
Geopandas – 1 Year. Pre-processing Geospatial Data With Python.

Tools

Git – 6 Years. Usage Of Both Gitflow And Gerrit.
Youtrack – 3 Years. Scrum Boards, Reports, Progress Monitoring, Timesheets.
Jira – 2 Years. Scrum Boards, Reports, Progress Monitoring, Plans.
Scripting – 5 Years. Scripting On Linux.
Ssh – 4 Years. Maintenance Of Vps.
Docker – 3 Years. Building Containers For Deploying Microservices.
Aws – 1 Year. S3 Buckets For Storing Pngs.

Languages

Romanian

Native

German

Advanced

English

Advanced

Education

University of Kassel

PhD in Computer Science · Computer Science · Kassel, Germany

University of Kassel

Master of Science in Computer Science · Computer Science · Kassel, Germany

University of Kassel

Bachelor of Science in Computer Science · Computer Science · Kassel, Germany

Certifications & licenses

Certified SAFe® 6 Agilist

Professional Agile Leadership™ - Evidence-Based Management™ (PAL-EBM)

Professional Scrum Product Owner™ II (PSPO II)

Professional Scrum Product Owner™ I (PSPO I)

Profile

Created

March 2024

Last Update

May 2025

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Frequently asked questions

Do you have questions? Here you can find further information.

Where is Adrian based?

Adrian is based in Berlin, Germany and can operate in on-site, hybrid, and remote work models.

What languages does Adrian speak?

Adrian speaks the following languages: Romanian (Native), German (Advanced), English (Advanced).

How many years of experience does Adrian have?

Adrian has at least 5 years of experience. During this time, Adrian has worked in at least 8 different roles and for 8 different companies. The average length of individual experience is 1 year and 8 months. Note that Adrian may not have shared all experience and actually has more experience.

What roles would Adrian be best suited for?

Based on recent experience, Adrian would be well-suited for roles such as: Senior Consultant, Product Owner MLOps; MLOps & ML Expert – Support in market exploration; Requirements Management – Data Factory, Consultant for the MVP of the Airplane Price Evaluation Tool.

What is Adrian's latest experience?

Adrian's most recent position is Senior Consultant at DB Systel GmbH.

What companies has Adrian worked for in recent years?

In recent years, Adrian has worked for DB Systel GmbH, DB Netz AG, AlphaPilots, German Deep Tech Institute, and Annotly UG (haftungsbeschränkt).

Which industries is Adrian most experienced in?

Adrian is most experienced in industries like Information Technology (IT), Retail, and Agriculture. Adrian also has some experience in Transportation and Logistics, Professional Services, and Aerospace and Defense.

Which business areas is Adrian most experienced in?

Adrian is most experienced in business areas like Information Technology (IT), Product Development, and Quality Assurance (QA). Adrian also has some experience in Business Intelligence, Strategy and Planning, and Project Management.

What is Adrian's education?

Adrian holds a Doctorate in Computer Science from University of Kassel, a Master in Computer Science from University of Kassel and a Bachelor in Computer Science from University of Kassel.

Does Adrian have any certificates?

Adrian has 4 certificates. Among them, these include: Certified SAFe® 6 Agilist, Professional Agile Leadership™ - Evidence-Based Management™ (PAL-EBM), and Professional Scrum Product Owner™ II (PSPO II).

What is the availability of Adrian?

Adrian is immediately available full-time for suitable projects.

What is the rate of Adrian?

Adrian's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.