Jan Beckert-API-Engineer
Check rate
Experience
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
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
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
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
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
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
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
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
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
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Information Technology, Healthcare, and Professional Services.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, and Research and Development.
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
Education
Master's degree · Data Science
Certifications & licenses
ASQF® Certified Professional For Project Management - Foundation Level
iSQI Group
Statistics
Experience
Global experience
Expertise
Qualifications
Profile
Frequently asked questions
Have questions? Find more information here.
Jan is based in Leipzig, Germany.
Jan speaks the following languages: English (Advanced), German (Intermediate).
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.
Based on recent experience, Jan would be well-suited for roles such as: API-Engineer, Software Developer, Consultant, Consultant.
Jan's most recent position is API-Engineer at Freelance.
In recent years, Jan has worked for Freelance and ScaDS.AI Dresden/Leipzig.
Jan is most experienced in industries like Information Technology, Healthcare, and Professional Services. Jan also has some experience in Utilities and Energy.
Jan is most experienced in business areas like Product Development, Information Technology, and Research and Development.
Jan holds a Master in Data Science.
Jan has 1 certificate: ASQF® Certified Professional For Project Management - Foundation Level.
The availability of Jan needs to be confirmed.
Daily rate distribution
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Average rates for similar positions
Rates are based on recent contracts and do not include FRATCH margin.
The average daily rate is the mean of all daily rates from recent contracts of comparable freelancers on our platform.
The median daily rate is the middle value of all daily rates — half of comparable freelancers charge less, half charge more. Unlike the average, it is barely affected by outliers.
Calculated based on our freelancers’ daily rates as of 30 Aug 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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