Recommended expert

Domenik Jones

Python Engineer and Cloud Migration Consultant

Domenik Jones
Berlin, Germany

Experience

Sep 2024 - Present
1 year 5 months
Hamburg, Germany

Python Engineer and Cloud Migration Consultant

Unknown

  • Supported the company's transition from an on-premise architecture to AWS cloud services, modernizing infrastructure and optimizing operational efficiency.
  • Leveraged expertise in automation and software implementation to enhance scalability, reliability and profitability.
  • Implemented Poetry and Ruff to streamline Python dependency management and code quality checks, improving development efficiency and reducing errors.
  • Implemented an automated CI/CD strategy with GitHub Actions, which decreased deployment times and minimized manual intervention.
  • Enforced deployment automation for Kubernetes, enhancing the scalability and reliability of applications across the organization.
  • Evaluated and implemented Apache Airflow for workflow management, leading to more efficient scheduling and monitoring of data pipelines.
  • Created data interfaces for energy traders, enabling them to optimize profit margins through improved data analysis and decision-making tools.
Jan 2022 - Aug 2024
2 years 8 months
Frankfurt, Germany

Team Lead and Python Engineer Consultant

T-Systems International and the European Central Bank

  • Collaborated with T-Systems International (TSI) and the European Central Bank (ECB) on a complex legacy timeseries aggregation project migration to Python 3, orchestrating and executing the multi-phased initiative spanning various ECB business units.
  • Supervised and provided leadership, training and mentorship to a diverse team of over 20 members including data scientists, data engineers, Python developers, automation test engineers, and trainees.
  • Planned, implemented and tested components of the project's shared core libraries to retrieve, aggregate and correct a continuous stream of data.
  • Successfully migrated legacy FAME code to a new Python 3 framework, integrating over ten ECB business units and more than 50 data aggregation and manipulation oriented subprocesses into the new framework.
  • Acquired proficiency in the legacy FAME 4GL language and streamlined its code for migration to the new framework.
  • Conducted sprint planning and execution in close collaboration with ECB stakeholders and acted as the primary liaison between TSI program management and the Process Team.
  • Ensured effective coordination with parallel teams both within the project and the ECB.
  • Continuously enhanced the core Python library to meet demanding development timelines and requirements.
  • Monitored and optimized services deployed on Kubernetes, overseeing the planning and execution of release cycles in collaboration with ECB counterparts.
  • Established project developer training sessions for over 80 developers and enforced coding standards for development teams.
  • Developed detailed code handover documentation for ECB users and conducted comprehensive theoretical and practical training sessions to ensure a smooth transition to the new framework and aggregation code system.
  • Conducted onsite alignment, training, and handover sessions at the European Central Bank in Frankfurt.
  • Organized and led team meetings and events across Germany and Austria, fostering team cohesion during remote work periods.
  • Exhibited unwavering commitment to meeting project deadlines, often extending work hours as needed.
Nov 2020 - Oct 2021
1 year
Berlin, Germany

Team Lead, Senior Python and React Developer

Kaffeehaus-Diamant

  • Managed end-to-end project responsibilities encompassing both backend and frontend components, overseeing the development and enhancement of an established e-commerce and warehouse solution integrated with Amazon Seller Central.
  • Streamlined the frontend application leveraging Swagger and Elasticsearch for improved functionality within a React-based environment.
  • Designed a strategy for transitioning from a virtual-machine-based server infrastructure to a cloud-hosted solution employing Kubernetes, ELK (Elasticsearch, Logstash, Kibana), and AWS services to optimize performance and scalability.
  • Developed Python/Django backend microservices, implemented caching with Elasticsearch and Redis, and autogenerated DRF API models in Typescript.
  • Developed a React application with Bootstrap 4 (Sass) and evaluated Tailwind CSS, and built a component library with Storybook.
Sep 2020 - Present
5 years 5 months
Berlin, Germany

Founder and CEO

sharck.io UG

  • Lead a team of three employees delivering data engineering solutions to clients.
  • Developed and implemented data engineering strategies and solutions.
  • Managed business operations including budgeting, client acquisition, and project management.
Sep 2018 - Oct 2020
2 years 2 months
Berlin, Germany

Team Lead and Senior Python Developer

Bayes Esports

  • Led and managed a team of up to 5 developers in a startup environment, overseeing both backend and frontend projects.
  • Mentored data scientists and served as the tech lead for two significant backend initiatives while migrating services to the AWS cloud.
  • Advised senior management on strategic technological matters.
  • Developed, deployed, and maintained Python/Django applications hosted on AWS using Kubernetes.
  • Ingested and merged large volumes of data from diverse sources into a centralized database.
  • Created user-friendly interfaces through APIs and implemented real-time communication using WebSockets and RabbitMQ.
  • Led a data science-oriented backend project powering a data merging service.
  • Researched cutting-edge technologies such as Apache Spark, Kafka, and Parquet.
Jul 2016 - Aug 2018
2 years 2 months
Berlin, Germany

Senior Python Developer (Backend Lead)

Scholz & Volkmer

  • Maintained, extended and refactored Python and Django backend projects for Mercedes-Benz, including a customer training platform backend and API for a React frontend, using Elasticsearch and customizing the Django application to build an editor publishing workflow with custom defined training contents.
  • Developed a Django-based webshop with reporting dashboards and campaign sites for USM using DjangoCMS and React.
  • Created multiple campaign sites for Deutsche Bahn such as "DB - Das ist Grün".
Jul 2011 - Jun 2016
5 years
Zürich, Switzerland

Team Lead and Python Developer

Netzbarkeit GmbH

  • Developed Python/Django/DjangoCMS applications with Bootstrap and Sass.
  • Performed PHP development using CodeIgniter 2 framework.
  • Implemented and administered agile project methods using Atlassian tools.
  • Served as onsite system administrator/engineer for Unix, Windows, Mac, and OpenVZ virtualization.
Aug 2010 - Jun 2011
11 months
Zürich, Switzerland

System Engineer and Developer

Deurocos Cosmetics

  • Administered and developed websites using PHP and Magnolia Java (JSP).
  • Developed RPG applications on IBM AS/400 systems.
  • Engineered and supported Windows 2003/2008 domain environments.
  • Provided onsite 1st, 2nd and 3rd level support.

Summary

Accomplished Python Developer, Team Lead and Coding Enthusiast with a rich 14-year track record of expertise in software development. Committed to fostering knowledge exchange and skill development among peers, facilitating a culture of continuous learning and improvement. A quick and enthusiastic learner, renowned for a strong work ethic and a proactive approach to problem-solving. Equally adept at excelling both in independent and collaborative team environments, with a proven ability to lead teams to success while maintaining a focus on quality and efficiency.

Skills

  • Leadership And Teamwork
  • Python
  • Django
  • Git
  • Docker
  • Kuberentes
  • Postgresql
  • Mysql
  • Elasticsearch
  • Mongodb
  • Typescript
  • Nodejs
  • React

Languages

German
Native
English
Advanced

Education

Jul 2006 - Jul 2010

Berufsschulzentrum Uster

Swiss Federal Diploma in System Engineering · System Engineer · Uster, Switzerland

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