Recommended expert

Jan Beckert

API-Engineer

Jan Beckert
Leipzig, Germany

Experience

Jan 2022 - Jan 2023
1 year 1 month

API-Engineer

Freelance

  • API-first product design (OpenAPI 3, HAL) and development (NodeJS)
  • Setting up DevOps pipelines with GitHub Actions in an AWS architecture
  • Technologies: OpenAPI 3, REST, HAL, NodeJS, JavaScript, TypeScript, AWS, AWS Lambda, Docker, GitHub Actions
Jan 2022 - Jan 2023
1 year 1 month

Software Developer, Consultant

Freelance

  • Building a software architecture for a knowledge management SaaS
  • Designing an event sourcing-based data structure
  • Designing and implementing a data structure for highly connected graph data
  • Developing a serialization tool for graph data
  • Implementing backend/API
  • Documentation using the C4 Model
  • Technologies: REST, CQRS, Event Sourcing, Event-driven Architecture, Laravel, GitLab CI/CD, JSON-API, Stoplight Studio, SQL, Docker, C4 Model
Sep 2021 - Oct 2021
2 months

Consultant

Freelance

  • Comparing distributed ledger/blockchain technologies
  • Designing business processes and integrating them into distributed ledger technology using BPMN
  • Designing a system architecture
  • Technology: BPMN
Sep 2021 - Aug 2021

Senior Software Developer, Consultant

Freelance

  • Creating a web-based platform for mapping workflows on touchscreen terminals in manufacturing for an ERP software vendor
  • Reducing maintenance and training effort through simplified integration of SQL-driven logic
  • Training developers and ERP project managers
  • Ongoing support as needed
  • Technologies: SQL/T-SQL, Microsoft SQL Server, React, NodeJS, REST, JSON, JSON Schema, YAML
Nov 2020 - Sep 2022
1 year 11 months
Germany

Research Assistant

ScaDS.AI Dresden/Leipzig

  • Designing and developing a toolkit for preprocessing MRI data (denoising, bias field correction)
  • Diagnosing COVID-19 from lung X-ray images with a focus on explainable AI (Explainable AI / XAI)
  • Technologies: CNNs, deep learning, LIME, GradCAM, Python, TensorFlow/Keras
Jul 2020 - Aug 2020
2 months

Software Developer

Freelance

  • Integration of public EV charging stations and collection of charging data into Apache Kafka as an ETL pipeline
  • Technologies: Apache Kafka, Python, REST, OCPP
Jan 2020 - Jun 2020
6 months

Business Analyst, Consultant

Freelance

  • Coordination with relevant stakeholders
  • Drafting user stories
  • Setting up a scoring scheme to describe non-functional aspects
  • Setting up a scoring scheme for technology selection
Apr 2019 - May 2019
2 months

Software Developer, Consultant

Freelance

  • Developing a prototype for green power–based control of a smart plug
  • Designing and developing a smart contract for the Ethereum blockchain
  • Technologies: Solidity, NodeJS, Python
Feb 2018 - Sep 2019
1 year 8 months
Germany

Junior Linked Data Consultant

eccenca GmbH

  • Creating a SHACL definition for UI generation for a SKOS editor
  • Evaluating Stardog's Virtual Graph feature with R2RML mappings for relational databases
  • Developing software to extract measurement and metadata from legacy systems as part of an ETL pipeline
  • Developing software to generate measurement reports from RDF data
  • Technologies: RDF, Java, Python, Jira, SHACL, SPARQL, Jekyll-RDF, SKOS, Stardog, R2RML, RDF/JSON, Triplestore

Summary

I am a versatile freelance developer and consultant with a focus on API design and implementation. With experience in designing SaaS products, system architectures, and developing prototypes for innovative solutions, I bring a wide range of skills to technically demanding projects. My expertise spans API design and development, event-driven architecture, CQRS, ETL pipelines, cloud architectures, and more.

In the past, I worked as a Junior Linked Data Consultant, focusing on semantic technologies and RDF. I also worked as a Research Assistant at a German AI center, where I focused on developing a toolkit for preprocessing MRI data and applying deep learning techniques to diagnose COVID-19 from X-ray images. This was part of my Master's studies in Data Science.

Skills

  • Software Architecture/development
  • Api Design And Implementation
  • Designing And Developing Etl Pipelines
  • Event-driven Architecture
  • Cloud Architectures, Especially Aws

Languages

English
Advanced
German
Intermediate

Education

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Master's degree · Data Science

Certifications & licenses

ASQF® Certified Professional For Project Management - Foundation Level

iSQI Group

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