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Jan Beckert

API-Engineer

Jan Beckert
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Leipzig, Germany

Experience

Jan 2022 - Jan 2023
1 year 1 month

API-Engineer

Freelance

Expertise details
Position Summary
API-Engineer at Freelance
Industries
Information Technology
Business Areas
Information Technology
Product Development
  • 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

Expertise details
Position Summary
Software Developer, Consultant at Freelance
Industries
Information Technology
Business Areas
Information Technology
Product Development
  • 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

Expertise details
Position Summary
Consultant at Freelance
Industries
Information Technology
Business Areas
Information Technology
Product Development
  • 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

Expertise details
Position Summary
Senior Software Developer, Consultant at Freelance
Industries
Information Technology
Business Areas
Information Technology
Product Development
  • 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

Expertise details
Position Summary
Research Assistant at ScaDS.AI Dresden/Leipzig
Industries
Healthcare
Business Areas
Research and Development
  • 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

Expertise details
Position Summary
Software Developer at Freelance
Industries
Utilities
Business Areas
Information Technology
  • 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

Expertise details
Position Summary
Business Analyst, Consultant at Freelance
Industries
Information Technology
Professional Services
Business Areas
Product Development
  • 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

Expertise details
Position Summary
Software Developer, Consultant at Freelance
Industries
Energy
Information Technology
Business Areas
Information Technology
Product Development
  • 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

Expertise details
Position Summary
Junior Linked Data Consultant at eccenca GmbH
Industries
Information Technology
Business Areas
Information Technology
Product Development
  • 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

Industry Experience

See where this freelancer has spent most of their professional time.

Experienced in Information Technology, Healthcare, and Professional Services.

Information Technology
Healthcare
Professional Services
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Business Area Experience

See which departments and functions this freelancer has contributed to most.

Experienced in Information Technology, Product Development, and Research and Development.

Information Technology
Product Development
Research and Development
Profile match chart

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

Master's degree · Data Science

Certifications & licenses

ASQF® Certified Professional For Project Management - Foundation Level

iSQI Group

Statistics

Experience

Total positions 9
Experience in Information Technology 3 y
Avg length 8 m
Longest experience 1 y 10 m

Global Experience

Countries worked in 1 (Germany)
Primary country Germany

Expertise

Recent roles API-Engineer, Software Developer, Consultant, Consultant
Main industries Information Technology, Healthcare, Professional Services
Main business areas Information Technology, Product Development, Research and Development

Qualifications

Highest degree Master
Certifications earned 1

Profile

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Frequently asked questions

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

Where is Jan based?

Jan is based in Leipzig, Germany.

What languages does Jan speak?

Jan speaks the following languages: English (Advanced), German (Intermediate).

How many years of experience does Jan have?

Jan has at least 4 years of experience. During this time, Jan has worked in at least 8 different roles and for 3 different companies. The average length of individual experience is 1 year and 6 months. Note that Jan may not have shared all experience and actually has more experience.

What roles would Jan be best suited for?

Based on recent experience, Jan would be well-suited for roles such as: API-Engineer, Software Developer, Consultant, Consultant.

What is Jan's latest experience?

Jan's most recent position is API-Engineer at Freelance.

What companies has Jan worked for in recent years?

In recent years, Jan has worked for Freelance and ScaDS.AI Dresden/Leipzig.

Which industries is Jan most experienced in?

Jan is most experienced in industries like Information Technology, Healthcare, and Professional Services. Jan also has some experience in Utilities and Energy.

Which business areas is Jan most experienced in?

Jan is most experienced in business areas like Product Development, Information Technology, and Research and Development.

What is Jan's education?

Jan holds a Master in Data Science.

Does Jan have any certificates?

Jan has 1 certificate: ASQF® Certified Professional For Project Management - Foundation Level.

What is the availability of Jan?

Jan is immediately available for suitable projects.

What is the rate of Jan?

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

How to hire Jan?

To hire Jan, click the Meet button on the profile to request a meeting and discuss your project needs.

Average rates for similar positions

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Market avg: 820-980 €
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.