Niko Schmuck - Developing Architect, Technical Lead "gridlytics"

Recommended expert

Hamburg, Germany

Experience

Jul 2023 - Present

2 years 7 months

Developing Architect, Technical Lead "gridlytics"

HH Energienetze

Building a data integration platform for high, medium, and low voltage assets for contextual time series analysis with master data from the SCADA control system (IEC 60870 104), INIS, and SAP.
Responsible for the architecture and implementation of the solution and sparring partner for the product owner.
Using Kotlin, Spring Boot, Maven, TimescaleDB, PostgreSQL, Liquibase, Elements IoT, Docker, Kubernetes, Grafana, Python, Jupyter, and various API gateways.

Sep 2021 - Jun 2023

1 year 10 months

Hamburg, Germany

Developing Architect, Technical Lead "datalytics"

Stromnetz Hamburg

Designing and building a data lake or data analytics platform for the eMobility backend to improve the operation of charging station infrastructure through monitoring.
Supporting site planning through reporting and analysis of partner feedback for iterative platform expansion.
Using Kotlin, Java, Spring Boot, Maven, TimescaleDB, PostgreSQL, Liquibase, Apache Kafka, Docker, Kubernetes AKS (Azure), Grafana, and Jupyter.

Sep 2021 - May 2022

9 months

Senior Software Developer

Adobe Systems Inc.

Designing and full-stack development of an internal tool for static code analysis as part of the company-wide Vulnerability Labs or shift-left initiative.
Integrating the analysis into pull requests of all GitHub Enterprise repositories.
Developing a user interface to support security researchers in pattern recognition.
Using Python, React with Redux, Spectrum, FastAPI, PostgreSQL, AWS SQS, Docker, Kubernetes, Skaffold, Semgrep, GitHub Enterprise API, Grafana, and Helm.

Mar 2021 - Sep 2021

7 months

Berlin, Germany

Senior Software Developer

Zalando SE

Designing and developing a new microservice for the Greenfield-7 project (Rotterdam) as part of the warehouse management system (zalos3).
Providing metrics on process utilization for brokers.
Using Kotlin, Java, Spring Boot, PostgreSQL, Flyway, Apache Kafka, Docker, Kubernetes (AWS), Maven, Mockito, and WireMock.

Nov 2019 - Jun 2020

8 months

Neckarsulm, Germany

Software Developer

Schwarz IT

Designing and implementing a microservice for live visualization and documentation of the components and dependencies of a complex Kubernetes landscape (GKE).
Setting up monitoring for these components with Grafana dashboards using templates.
Using Kotlin, Spring Boot, JavaScript, AsciiDoctor, d3.js, Graphviz, Go, Grafana, Docker, Kubernetes, and Google Cloud Platform (GCP).

Apr 2019 - Mar 2021

2 years

Hamburg, Germany

Software Architect, Team Lead Data Analytics

Stromnetz Hamburg

Further development and refactoring of the eMobility backend to manage charging station infrastructure for electric vehicles.
Splitting the platform into vertical segments and introducing Apache Kafka.
Migration to a central user management system based on OAuth 2.0.
Building a time series data analysis platform in close collaboration with the business department.
Use of Kotlin, Java, Spring Boot, TimescaleDB, Grafana, PostgreSQL, Liquibase, Apache Kafka, Akka, SOAP, WebSockets, Apache Tomcat, Docker, Maven, Bamboo, FusionAuth, and a Kubernetes proof-of-concept on Azure.

Oct 2018 - Mar 2019

6 months

Hamburg, Germany

Software Developer

Shopping24

Extending clickout tracking and developing new microservices to predict cost-per-click values.
Full-stack development of a user interface for configuring Solr-specific tuning for the Shopping24 portals.
Introducing complex end-to-end test scenarios.
Use of Kotlin, Java, Spring Boot, Solr, PostgreSQL, Redis, Apache Kafka, Docker, Kubernetes, Maven, Jenkins, Vue.js, Mockito, JUnit5, and Testcontainers.

Apr 2018 - Sep 2018

6 months

CTO

Mega-Ventures

Building the technical infrastructure for algorithmic trading on crypto exchanges.
Developing algorithms for automated trade execution and real-time analysis of aggregated data streams.
Use of Kotlin, Apache Flink, ReactiveX (rxJava), WebSockets, Jooby, Netty, Gradle, Docker, Kubernetes, and Google Cloud (GCP).

Feb 2018 - Mar 2018

2 months

Software Architect

Hermes Europe

Conducting architecture reviews and advising on the migration to a microservice architecture for European Routing Services.
Developing a REST API with microservices to retrieve processing-relevant routing information and replace a monolith.
Setting up a continuous deployment pipeline and providing agile coaching.
Use of Java, Spring Boot, ActiveMQ, Gradle, Jenkins Pipelines, Docker, OpenShift (AppAgile), and ReadyAPI.

Sep 2017 - Jan 2018

5 months

Hamburg, Germany

Software Engineer / Software Architect

natcon7

Designing and developing a SCADA dashboard and monitoring system for fleets of renewable energy installations.
Focused on the backend stack for efficient analysis of sensor data streams and aggregated delivery to clients.
Use of Java, Spring Boot, Apache Kafka, OPC XML DA (SOAP), PostgreSQL, Flyway, JavaFX, RMI, Docker, Gradle, Jenkins Pipelines, Ansible, and Kubernetes.

May 2017 - Sep 2017

5 months

Hamburg, Germany

Software Developer

Shopping24

Further development of the central product search engine for the Shopping24 portals.
Customization of tools for product data import, processing and enrichment as well as invoicing, tracking servers and log data analysis.
Prototype development of purchase probability predictions using machine learning (logistic regression).
Use of Java, Spring Boot, Guava, PostgreSQL, flyway, Solr, Redis, Docker, Maven, Jenkins Pipelines, Tomcat, Ansible, Grafana, Graylog, Python and scikit-learn.

Nov 2016 - Apr 2017

6 months

Hamburg, Germany

Lead Software Developer

AdTriba

Setup of the technical infrastructure for a SaaS startup in the online marketing sector.
Development of a low-latency tracking server with approx. 25 million requests per day.
Setup of an ETL pipeline in Jenkins and development and introduction of a central configuration management API.
Extension of tracking dashboards.
Use of Java, Jooby, Netty, AWS S3, Elastic Beanstalk, CloudFormation, Lambda, DynamoDB, Redshift, RDS, Route 53, Jenkins 2.0 Pipelines with Groovy, Python, Zappa, Packer, Terraform, JavaScript, Vue.js and Highcharts.

Mar 2016 - Oct 2016

8 months

Hamburg, Germany

Technical Designer & Software Developer

OTTO

Further development of product data supply for online marketing channels, including migration to streaming.
Design and development of CROS (Canonical and Redirect Optimization Software) 2.0 in close coordination with the business department.
Use of Java, Liferay Portal, Spring Boot, Akka Streams, PostgreSQL, MongoDB, Tomcat, Jetty, Gradle, Jenkins, OpenStack, Ansible, Python and Scrapy and Scrapinghub.

Aug 2015 - Feb 2016

7 months

Hamburg, Germany

Software Developer

OTTO

Further development of the product system of the eCommerce platform "Product & Review" in the Scrum team.
Refactoring the architecture towards splitting into microservices.
Design and introduction of a customer review microservice.
Implementation of autoscaling with Edison and Mesos.
Use of Java, Spring Boot, MongoDB, Tomcat, Jetty, Gradle, Jenkins, Varnish, Mesos, Marathon, JavaScript and SASS.

Oct 2014 - Jul 2015

10 months

Tech Lead & Scrum Master

MarkLogic

Requirements engineering, design and implementation of a management information dashboard for HannoverRe insurance applications.
Import and analysis of application data based on medical risk factors of the individual insurers.
Leading the team as tech lead and scrum master.
Use of Java, Spring Boot, Spring MVC, Thymeleaf, Apache Camel, MarkLogic Server, Highcharts, Maven and Jenkins.

Feb 2014 - Jul 2014

6 months

Hamburg, Germany

Software Developer

SinnerSchrader

Developed an e-commerce webshop for a Swiss department store chain.
Adapted the ordering process and connected third-party systems (CRM, scoring, payment provider DataTrans) both synchronously (REST) and asynchronously (JMS).
Used Java, Hybris 5 eCommerce Platform, Scala, Jetty, Scalatra, REST, SOAP, JMS, ActiveMQ, MySQL, Maven, Jetty, Tomcat 6 and Linux.

Oct 2013 - Oct 2014

1 year 1 month

Hamburg, Germany

Software Developer

Adobe Systems

Designed and developed a web tool to manage the release and deployment process for Adobe Shared Cloud components across multiple environments.
Integrated into existing Jenkins processes and AWS provisioning.
Used Play! Framework, Amazon AWS (EC2, ELB, AS, CFN, EB, S3), GitHub Enterprise, Hosted Chef, Jenkins, MySQL, Maven, nginx, Linux and Windows.

Feb 2013 - Dec 2013

11 months

Hamburg, Germany

Software Architect

OTTO

Validated the non-functional requirements of the new e-commerce platform otto.de.
Conducted robustness and performance tests, assessed scalability and analyzed bottlenecks.
Advised the functional teams on performance and architecture.
Used REST architecture, Groovy, Gradle, JUnit, HTMLUnit, Jenkins plugin, Git, Xceptance XLT, Python, Django, flot, R, Graphite, Graphoo and DigitalOcean.

Feb 2013 - Sep 2013

8 months

Hamburg, Germany

Software Developer and Consultant

Adobe Systems

Designed and built the internal web application "Cloud Labs" for creating and deploying Shared Cloud Workers (Java/C) in the Amazon Cloud.
Implemented features for scaling and monitoring the workers.
Used Play! Framework, Amazon AWS (EC2, ELB, AS, CFN, EB, S3), GitHub Enterprise, Hosted Chef, Jenkins, MySQL, Maven, nginx, Linux and Windows.

Feb 2012 - Nov 2012

10 months

Hamburg, Germany

Software Architect and Developer

Gruner+Jahr

Technical design and implementation of a new web content management system for the Exclusive Living publishing group.
Dynamically generated forms from content type definitions using JSON Schemas.
Used Play! Framework, AngularJS, JavaScript, HTML5, Bootstrap, JSON Schema, MongoDB and Mercurial.

Sep 2011 - Jan 2013

1 year 5 months

Hamburg, Germany

Software Architect

OTTO

Technical design of the core architecture for the highly scalable eCommerce platform Lhotse (otto.de).
Collaboration in the Scrum team focusing on product, search, and navigation systems.
Use of REST architecture, Spring Framework, MongoDB, Freemarker, Python, Flask, Gradle, JUnit, JMeter, Jenkins, Git, Fredhopper, Linux, and Tomcat.

May 2011 - Present

14 years 9 months

Freelance Software Architect and Developer

Niko Schmuck – Software Architecture, Development & Consulting

Consulting in early project phases, including technology selection, feasibility analyses, and supporting product management in team building and introducing agile methods.
Acting as a technical project lead, coach, and Scrum Master in agile software development teams.
Analyzing and designing software systems, creating system architectures, and implementing in development.
Conducting reviews of existing systems, developing improvement measures, and carrying out extensive refactorings.
Designing and developing software solutions using object-oriented design and domain-driven design.
Defining appropriate system boundaries when introducing and extending microservices and self-contained systems.
Implementing software solutions in complex system landscapes, as well as integrating and connecting backend systems.
Developing automated tests and integrating them into continuous build and deployment pipelines.

May 2011 - Aug 2011

4 months

Bremen, Germany

Developer in the Scrum Team

neuland bfi

Integrating the PayPal payment method into a multi-tenant web shop for BonPrix.
Designing and implementing a device-independent shopping cart.
Introducing Sonar and Jenkins as a continuous build infrastructure.
Using Spring Framework, Hibernate, Velocity, Ant, Oracle, JUnit, Sonar, Jenkins, Subversion, Git, and Tomcat.

Jan 2011 - Mar 2011

3 months

Hamburg, Germany

Technical Project Lead, Architect, Developer

Hoffmann & Campe (Part 3)

Modernizing and refactoring a WebObjects-based CRM and address/response management tool.
Conducting data migrations and implementing import, export, and reporting functions for magazine subscribers.
Using Play! Framework, JPA, Hibernate, Oracle, MySQL, Pentaho Kettle, JavaScript, jQuery, Selenium, and Hudson.

Oct 2010 - Nov 2010

2 months

Hamburg, Germany

Technical Project Lead, Architect, Developer

G+J Exclusive Living (Part 3)

Developing an easily customizable white-label B2C shopping system, including back office.
Providing a REST JSON API for integration into Gruner & Jahr's online offerings; first used for the Beef online shop.
Using Play! Framework, JPA, Hibernate, JavaScript, jQuery, Selenium, and Hudson.

Jul 2010 - Sep 2010

3 months

Hamburg, Germany

Technical Project Manager, Architect, Developer

Folge 3

Developed the restaurant guide eatopia.de as an extendable web application for restaurant recommendations.
Implemented user features for suggestions and reviews as well as backoffice functionality for an editorial team.
Used Play! Framework, JPA, Hibernate, JavaScript, jQuery, Selenium, and Hudson.

Apr 2010 - Jun 2010

3 months

Hamburg, Germany

Architect, Developer

ZEIT ONLINE (Folge 3)

Developed internal tools to aggregate Apache log files (zeit.de) and for near-time analysis with about a 5-minute delay.
Presented results in dashboards for management, and evaluated publications using Solr.
Used Spring Framework, Hibernate, Solr, PostgreSQL, jFreeChart, Spring Web MVC, jQuery, flot, Maven, and Hudson.

Jan 2009 - Mar 2010

1 year 3 months

Hamburg, Germany

Architect, Developer

Adobe Systems

Designed and implemented an XMP-based search index within a distributed asset-processing infrastructure of the Scene7 Image Production System.
Extended the IPS SOAP API to use the metadata search index.
Used Java, Spring Framework, MongoDB, Solr, ActiveMQ, JMS, Gradle, TeamCity, and Perforce.

Aug 2006 - Dec 2008

2 years 5 months

Hamburg, Germany

Scrum Master and Developer

Adobe Systems

Designed and developed the web-based Device Intelligence Portal to communicate with OEMs about Flash Lite support for their mobile devices.
Connected to the Flash Certification Portal via REST API (Grails) and exported XML data to the Online Device Library for Device Central (part of Adobe Creative Suite).
Served as Scrum Master in an interdisciplinary team (development, UX, QA).
Used Java, Spring, Hibernate, MySQL, Tomcat, initially HTML with Spring Web MVC, and later Flex in the frontend.

Jul 2005 - Aug 2006

1 year 2 months

Hamburg, Germany

Technical Project Manager

OTTO

Responsible for the technical relaunch of frankonia.de on the open-source eCommerce platform osecom as an alternative to Intershop Enfinity.
Collaborated with internal (Otto UK) and external service providers.
Implemented the checkout process with Spring Web Flow and integrated SAP ERP for availability checks and product ordering.
Participated in prototyping in a pilot phase and took part in international eCommerce workshops of the Otto Group with responsibility for the core architecture.
Used Java, Spring, Spring Web Flow, Hibernate, Lucene, SAP web services/SOAP, MySQL, Tomcat, Apache, Subversion, and CruiseControl.

Nov 2003 - Jun 2005

1 year 8 months

Hamburg, Germany

System Developer

OTTO

Worked on the company-wide eCommerce platform Pyramdi based on Intershop Enfinity MultiSite.
Migrated to Enfinity Suite 6 and performed entity modeling and re-engineering using UML.
Introduced SOAP web services for a Flash-based styling shop and conducted performance tests.
Used Java, Intershop Enfinity, UML, CruiseControl, ant, XSLT, The Grinder, Jython, SOAP, EJB, Tomcat, CVS and roundup.

Oct 2002 - Oct 2003

1 year 1 month

Hamburg, Germany

Quality Software Engineer

CoreMedia

Developed test plans for a new workflow modeling component of the Content Application Platform (CAP).
Refactored the CAP multi-platform installer and introduced an XML-based state machine for installing CAP components.
Built and expanded the test suite for CAP core components in collaboration with R&D.
Introduced XSLT-based report generation for multi-platform tests and integrated it into continuous integration software.
Used Java, Python, XML, XSLT, UML, Poseidon, JUnit, CruiseControl and ant.

Mar 2001 - Sep 2002

1 year 7 months

Oslo, Norway

Software Engineer

ontopia

Product development for the Ontopia Knowledge Suite after ontopia spun off from empolis.
Implemented a Navigator SDK (JSP tag libraries) for web applications.
Developed the generic topic map browser "Omnigator" as a showcase for the Navigator framework.
Designed and implemented an editor SDK for topic-map-based web applications (ISO 13250).
Used Java, JSP tag libraries, Tomcat, Resin, BEA WebLogic and JUnit.

Sep 1999 - Mar 2001

1 year 7 months

Würzburg, Germany

Software Developer

empolis (formerly STEP)

Worked on project developments with the SigmaLink SGML/XML CMS.
Co-developed a SigmaLink module for the Distributed Processing Management Suite from Wiley-VCH to manage journal publications.
Implemented import and export of large content repositories (including BLV/wissen.de).
Conducted a workshop on the SigmaLink Reference Works Module for Bertelsmann Lexikon Verlag.
Designed and developed a web application to overview published catalog variants for Heinze Verlag.
Used Java, Python, Oracle, WebMacro, Servlets, JSWDK and JBuilder.

Jun 1998 - Aug 1999

1 year 3 months

Bremen, Germany

Freelance Software Developer

tamito (formerly planetsound)

Implemented an online shop for sunburst merchandising on behalf of an internet agency.
Implemented e-commerce functionalities, including the sale of merchandising items for Herbert Grönemeyer.
Used SoftCart, Perl, HTML and JavaScript.

Jan 1997 - Jun 1998

1 year 6 months

Würzburg, Germany

Software Developer (student assistant)

Institute of Egyptology, University of Würzburg

Development of a graphical temple navigation system (scenario) to analyze relationships between ritual scenes based on an existing TUSTEP text database.
Development of a tool to create and connect a hierarchical map system (LinkCreator).
Used Java, AWT, Swing, Applets and WebStart (JNLP).

Jun 1996 - Jun 1999

3 years 1 month

Osnabrück, Germany

Freelance Software Developer

intro music magazine

Design and implementation of the web portal for the intro music magazine.
Development of a web CMS to manage articles, convert Word files and import them into the CMS.
Used PHP, Perl, MySQL, Apache and Linux.

Summary

For over 20 years, I have worked as a software developer and architect on custom software systems. I have worked in both product and project development, gaining a broad range of experience across the entire software lifecycle.

I am happy to support your team:

in an early project phase through consulting (e.g. technology selection and technical feasibility) and helping product management set up a team and agile methods
as a technical project leader / coach / Scrum Master in agile software development teams
in analysis and design, system architecture, and software development
by reviewing existing systems and developing improvement measures, as well as carrying out comprehensive refactorings

Understanding the customer's requirements as a basis for creating a tailored solution is very important to me. Working at the interface between technology and business requirements has long been a key goal for me -- IT should not be an end in itself but should add value.

I enjoy diving into new areas, and I find it easy to integrate into new teams and contribute collaboratively. I also enjoy working in international teams.

Skills

Methods

Process Models: Agile, Kanban, Xp (Extreme Programming), Tdd, Design Thinking, Scrum, User Story Mapping
Architecture Styles: Scs, Microservices
Software Modeling: Ooad, Ddd, Uml

Technologies

Programming Languages: Kotlin, Python, Javascript, Clojure, Groovy, Scala, Java, Bash, Php, C, Go, Ruby
Application Servers: Nginx, Jetty, Jboss, Glassfish, Apache Tomcat, Weblogic, Lighttpd
Web Frameworks: Spring Boot, Spring Web Mvc, Play! Framework, Flask, Quarkus, Grails, Django, Sinatra
Relational Databases: Postgresql, Oracle, Ms Sql Server, Db2, Mysql
Nosql Databases: Mongodb, Dynamodb, Couchdb, Marklogic
Search & Retrieval: Elasticsearch, Lucene, Solr
Integration: Apache Kafka, Jms, Activemq, Apache Servicemix, Apache Camel
Java Apis And Libraries: Jersey, Jax-rs, Jpa, Hibernate, Guava, Overview Of Libraries In The Java Ecosystem
Testing: Junit, Jmeter, Easymock, Mockito, Kotlintest, Selenium, Jasmine
Frontend: Html5, Thymeleaf, Highcharts, Jquery, Freemarker, Velocity, Vue.js, Angular, React
Web Standards: Xml, Html, Json, Xsl(t)
Development Environments: Intellij Idea, Eclipse Ide, Emacs, Vi
Source Code Management: Git, Enterprise Bitbucket, Github, Gitlab, Mercurial, Subversion, Cvs, Perforce
Build Tools: Maven, Gradle, Jenkins, Bamboo (Hosted), Chef, Puppet, Teamcity
Cloud Platforms: Docker, Aws, Google Cloud, Microsoft Azure, Kubernetes, Mesos, Marathon, Digitalocean
Operating Systems: Linux, Unix (Solaris), Windows, Mac Os X

Competencies

Willingness To Perform And High Self-motivation
Interdisciplinary Collaboration
Innovative Drive With Focus On Overarching Goals
Flexibility Paired With Pragmatism And Creativity
Strong Communication Skills
International Experience: 1.5 Years In Norway, Multiple Work Stays In The Usa
Working With Different Cultures
Willingness To Learn And Strong Interest In Continuous Development

Industry Knowledge

Ecommerce
Retail
Logistics
Commercial Off-the-shelf Software
Content Management
Media / Internet Services
Energy
Trading
Online Marketing
Insurance

Languages

German

Native

English

Advanced

Education

Oct 1992 - Jul 1999

Julius Maximilian University of Würzburg

Diploma in Physics · Physics · Würzburg, Germany

Oct 1989 - May 1992

Karlsruhe Technical Gymnasium

Abitur · Karlsruhe, Germany

Certifications & licenses

Scrum Master Certification

Ken Schwaber

Enfinity Multisite: Business Logic Implementation + Programming

Intershop

Object Oriented Analysis & Design Using UML

Sun Microsystems

Oracle 8i Db Administration, Backup & Recovery

Oracle

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