Julien Look - MLOps Engineer

Q: Where is Julien based?

Julien is based in Berlin, Germany .

Q: What languages does Julien speak?

Julien speaks the following languages: German (Native), English (Advanced), Japanese (Advanced) .

Q: How many years of experience does Julien have?

Julien has at least 6 years of experience. During this time, Julien has worked in at least 13 different roles and for 15 different companies . The average length of individual experience is 5 months . Note that Julien may not have shared all experience and actually has more experience.

Q: What is Julien's latest experience?

Julien's most recent position is MLOps Engineer at SAMGEN .

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

In recent years, Julien has worked for SAMGEN , AI Sales Representative , Applai , Nobleprog , and Data Smartpoint .

Q: Which industries is Julien most experienced in?

Julien is most experienced in industries like Information Technology (IT) , Education , and Banking and Finance . Julien also has some experience in Professional Services , Government and Public Administration , and Manufacturing .

Q: Which business areas is Julien most experienced in?

Julien is most experienced in business areas like Information Technology (IT) , Product Development , and Business Intelligence . Julien also has some experience in Operations , Quality Assurance (QA) , and Research and Development (R&D) .

Q: Which industries has Julien worked in recently?

Julien has recently worked in industries like Education , Information Technology (IT) , and Banking and Finance .

Q: Which business areas has Julien worked in recently?

Julien has recently worked in business areas like Information Technology (IT) , Product Development , and Business Intelligence .

Recommended expert

Berlin, Germany

Experience

May 2025 - Present

10 months

MLOps Engineer

SAMGEN

Building and scaling cloud infrastructure on GCP to support a SaaS platform for industrial clients
Designing and implementing a data-driven DevOps pipeline for streamlined deployment and CI/CD workflows
Collaborating with Data Science team on MLOps workflow to automate integrated retraining

Mar 2025 - Present

1 year

AI Engineer

AI Sales Representative

Customized and integrated a voice AI-agent with RAG into existing website to answer questions regarding the business, suggest users services of the company and autonomously schedule appointments

Jan 2025 - Present

1 year 2 months

AI Engineer

Applai

Built an agentic job application tool to accelerate search of fitting roles and automating cover letters
Created selenium scraper on FastAPI for job platforms, chained multiple RAGs and LLMs for consistent output
Used LangGraph for agentic workflow and LangSmith for model evaluation

Jan 2025 - Present

1 year 2 months

Adjunct Lecturer in MLOps

Nobleprog

Concepted and taught lessons in MLOps (Machine Learning Operations), covering automated data wrangling, machine learning life cycles, monitoring, and orchestration in production environments
Developed hands-on labs with real-world case studies, guiding students through opportunities and pain points in MLOps, covering a range of modern tools and frameworks
Discussed and utilized tools such as MLflow, DVC, Github Actions, AWS, Amazon Sagemaker, Airflow, Docker, Kubernetes, AutoML, Scikit-Learn, evidently.ai

Jun 2024 - Dec 2024

7 months

Adjunct Lecturer in Data Analytics

Data Smartpoint

Taught Data Analytics, Data Protection, Machine Learning, Web Scraping and API development to groups of ~15 students, including conceptualization of study material and final projects

Jan 2024 - Apr 2025

1 year 4 months

Software Engineer

Cinoware

Built prototypes and automated testing software products in critical infrastructure for government sector
Developed a robot operation application using Python, FastAPI and React, experimented with multimodal LLMs
Built image detection application with OpenCV, used MLflow and scikit-learn for evaluation
Developed a Selenium Grid testing suite, analyzed Allure reports for performance tracking
Built a Jira automation tool for data imports using Node.js, Bash and Docker

Jan 2024 - Apr 2025

1 year 4 months

Frontend Engineer

R-Cycle

Spearheading development of customer dashboard to monitor plastic production cycle across multiple manufacturers, facilitating industries’ data and product compliance with government recycling mandates
Directed architectural improvements (workspace refactoring and testing strategy) to stabilize the application
Engineered Frontend components utilizing React, SASS, and CoreUI for a responsive user interface
Transformed database and file management using GCP, prompting users to customize the app UI

Dec 2023 - Mar 2024

4 months

Shopify Fullstack Engineer

Cybercrush

Managed a team of 4 developers and built a custom Shopify Storefront with Remix.js, Shopify APIs and GraphQL

Nov 2023 - Mar 2024

5 months

AI Engineer

Full-Circle Family

Developed a mobile AI parent advisor, offering quick and affordable child care support
Advised and implemented chatbot using fine-tuned LLM and RAG and strategized benchmarking
Chained multiple applications in monorepo with microservices, coupled with cloud development using AWS to manage data protection together with scalability (Lambda, API Gateway, DynamoDB, Amplify, Cognito, EC2)

Sep 2023 - Dec 2023

4 months

Data Engineer

co-dex

Engineered data transformation pipeline for the energy sector using Python, pandas and Airflow

May 2023 - Sep 2023

5 months

Azure Cloud Engineer

kunveno

Developed and integrated a full-stack app into Microsoft Teams as a message extension using Azure

May 2021 - Dec 2022

1 year 8 months

Data Scientist

Expresssteuer GmbH

Managed GDPR-sensitive ETL processes and rebuilt the cloud data warehouse using Google Analytics, Big Query, Firebase and dbt, reducing original database costs by more than 90%
Implemented microservices coupled with cloud services using Firebase, Angular and TypeScript
Built custom AI solutions for internal processes to cut cost for operations by about 70%, including:
Developed screening and extraction tool for several legal documents using Google Vertex AI
Built a client-faced agentic chatbot, automating responses to individual case inquiries
Designed analytics dashboards, empowering finance and operations teams with data-driven insights

Sep 2020 - Sep 2021

1 year 1 month

Data Science Research Assistant

Technical University Berlin

Conducted machine learning research in quality science, contributed to paper publication

Jun 2020 - Dec 2020

7 months

Machine Learning Engineer

Cyanite

Modeled several machine learning prototypes to classify music eras with Python and TensorFlow

Sep 2019 - Mar 2020

7 months

Operating System Engineer

Bosch SEA

Developed Debian packages for company internal Linux distribution in Bash and Python for global user base

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 (3.5 years), Education (3 years), Government and Administration (1.5 years), Manufacturing (1.5 years), Banking and Finance (1.5 years), and Professional Services (1.5 years).

Information Technology

Education

Government and Administration

Manufacturing

Banking and Finance

Professional Services

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 (5.5 years), Product Development (3 years), Business Intelligence (2.5 years), Quality Assurance (1.5 years), Operations (1.5 years), and Research and Development (1.5 years).

Information Technology

Product Development

Business Intelligence

Quality Assurance

Operations

Research and Development

Summary

As a Software Engineer working across multiple disciplines, I have been wearing hats such as Data Scientist, Fullstack Developer, AI or DevOps Engineer. I design and scale data-driven software and integrate AI solutions to empower businesses to lead in digital transformation. With experience across startups and enterprises, I provide technical leadership and strategic advisory for all levels of technological readiness. Backed by 8 years of teaching experience, I enjoy mentoring and empowering teams to foster independence.

Skills

Data Science & Machine Learning: Machine Learning (Llm, Cnn, Classification, Time Series, Regression, Reinforcement Learning); Data Engineering (Big Data Mining, Etl); Data Quality (Evidently.ai, Deepeval); Gdpr; Libraries (Tensorflow, Keras, Pytorch, Pandas, Scikit-learn, Tidyverse, Opencv, Ollama, Langchain)
Software Architecture/deployment: Monorepo (Nx); Microservices; Version Control (Git); Cloud Services (Firebase, Microsoft Azure, Aws); Ci/cd (Github Actions, Gitlab Ci/cd; Expo, Docker, Mlops (Amazon Sagemaker, Mlflow, Dvc, Deployment); Workflow Management (Airflow, Flowise, Langgraph)
Frontend Development: Sass; Web Scraping (Selenium, Xml); Graphql; Jquery; Websockets (Socket.io); E2e Testing (Cypress); Ui Kits (Tailwind, Bootstrap, Material Ui, Headlessui, Coreui); Module Bundler (Webpack, Vite); Rxjs; Rest; Server-side-rendering; Caching; Authentication (Jwt, Oauth)
Backend Development: Server Framework (Express, Restify, Flask, Fastapi); Serverless Development; Threading; Multiprocessing; Database Management (Mongodb, Orm, Dbt, Prisma, Redis, Big Query, Rag, Chroma, Pinecone); Unit/integration/api Testing (Jest, Python Unittest)
Programming Languages: Web (Javascript, React, Remix, Angular, Html, Css); Backend (Node.js, Typescript, Bash); Data Science (Python, R, Sql); Mobile (React Native)

Languages

German

Native

English

Advanced

Japanese

Advanced

Education

Apr 2018 - Aug 2021

Technical University Berlin

B.Sc., Computational Engineering Science · Computational Engineering Science · Berlin, Germany · 2.1 (equivalent to a GPA of 3.1 or a score of 86%)

Profile

Created

May 2025

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Frequently asked questions

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

Where is Julien based?

Julien is based in Berlin, Germany.

What languages does Julien speak?

Julien speaks the following languages: German (Native), English (Advanced), Japanese (Advanced).

How many years of experience does Julien have?

Julien has at least 6 years of experience. During this time, Julien has worked in at least 13 different roles and for 15 different companies. The average length of individual experience is 5 months. Note that Julien may not have shared all experience and actually has more experience.

What roles would Julien be best suited for?

Based on recent experience, Julien would be well-suited for roles such as: MLOps Engineer, AI Engineer, Adjunct Lecturer in MLOps.

What is Julien's latest experience?

Julien's most recent position is MLOps Engineer at SAMGEN.

What companies has Julien worked for in recent years?

In recent years, Julien has worked for SAMGEN, AI Sales Representative, Applai, Nobleprog, and Data Smartpoint.

Which industries is Julien most experienced in?

Julien is most experienced in industries like Information Technology (IT), Education, and Banking and Finance. Julien also has some experience in Professional Services, Government and Public Administration, and Manufacturing.

Which business areas is Julien most experienced in?

Julien is most experienced in business areas like Information Technology (IT), Product Development, and Business Intelligence. Julien also has some experience in Operations, Quality Assurance (QA), and Research and Development (R&D).

Which industries has Julien worked in recently?

Julien has recently worked in industries like Education, Information Technology (IT), and Banking and Finance.

Which business areas has Julien worked in recently?

Julien has recently worked in business areas like Information Technology (IT), Product Development, and Business Intelligence.

What is Julien's education?

Julien holds a Bachelor in Computational Engineering Science from Technical University Berlin.

What is the availability of Julien?

Julien is immediately available full-time for suitable projects.

What is the rate of Julien?

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