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Jan Lüders

Senior Developer

Hamburg, Deutschland

Erfahrungen

Okt. 2024 - Bis heute
9 Monaten
Remote

Senior Software Developer

#Die.Digitalfabrik GmbH

  • Languages: PHP7/8 (Shopware 6), Vue.js, Docker, Apache
  • Infrastructure: ScaleCommerce (E-Commerce cluster, container based)
  • Team size: 3
  • Development methodology: Kanban (Jira/Confluence)
  • Planning and development of various client projects in an agency environment
Apr. 2024 - Nov. 2024
8 Monaten
Remote

Senior PHP Developer

Denkwerk GmbH

  • Languages: PHP7 (Magento 1.9 & Shopware 5 & 6), Vue.js, Docker, Oracle, Apache, MongoDB (NoSQL)
  • Infrastructure: MaxCluster (E-Commerce cluster, container based)
  • Team size: 5
  • Development methodology: Kanban (Jira/Confluence)
  • Technological and architectural planning, development, and maintenance of the shop bp-online.com
März 2023 - März 2024
1 Jahr 1 Monate

Projektmanager Cloud & Infrastruktur

FFW Hamburg

  • Infrastructure: Google Cloud Services (Kubernetes, Artifact Registry, Cloud SQL, VPC, IAM, IAP, Storage, PSC, CDNS, Interconnect); IaC with Terraform/Terragrunt; migration from AWS S3 & AWS Lambda to GCP Buckets & Cloud Functions; AWS IAM

  • Team size: 5

  • Development methodology: Kanban

  • Coordination, structuring, process control, and controlling of the operations team for ZDF on behalf of FFW Hamburg

Apr. 2022 - Bis heute
3 Jahren 3 Monaten

Chief Technical Officer

NIU Nature GmbH

  • Languages: PHP8, Symfony, Shopware 6, MySQL, Postgres, Flutter mobile, .Net 8.0, ProtoBuf, Python
  • Infrastructure: Google Cloud Services (Cloud Run, Artifact Registry, Cloud Functions, Cloud SQL, Cloud VPC, IAM, IAP, Storage); IaC with Terraform/Terragrunt
  • Team size: 3
  • Development methodology: Kanban (Jira/Confluence)
  • Development of a mobile application in Flutter with .Net microservices backend
März 2022 - Feb. 2023
1 Jahr

Web 3 Developer & Product Owner

MetaCards.gg

  • Languages: Solidity, TypeScript, Node.js, Python, ReactJS/React Native
  • Infrastructure: AWS (EC2, RDS, EKS, S3, Route 53, VPC, IAM)
  • Team size: 5
  • Development methodology: Scrum
  • Steering and development of a blockchain game (gaming, NFT, wallet hosting)
Juli 2019 - März 2022
2 Jahren 9 Monaten

Head of Development, UIT ONE

UIT Services GmbH

  • Languages: PHP7 (Magento 1.9 & Shopware 5 & 6), Vue.js, React Native, C#, TypeScript, ReactJS/React Native, Docker, Oracle, Apache, MongoDB (NoSQL)
  • Infrastructure: Google Cloud Services (Artifact Registry, Cloud Functions, Cloud SQL, Cloud VPC, IAM, IAP, Storage, Compute Engine)
  • Team size: 5
  • Development methodology: GitLab tickets, Kanban
  • Staff leadership and training
  • Project acquisition
  • Shopware 5 & 6 development
  • React Native contract development to extend in-house product range
  • Development of a white-label backend for mobile applications
  • IT project planning and budgeting
Mai 2019 - Nov. 2020
1 Jahr 7 Monaten

Technische Projektleitung

sallys-shop.de & sallys-world.net

  • Languages: PHP7 (Magento 1.9 & Shopware 5/6)
  • Infrastructure: on premise
  • Team size: 3
  • Development methodology: Scrum (Jira/Confluence)
  • Opening of additional sales portals (Amazon, eBay) to expand customer base
  • Migration of existing shop to Shopware including infrastructure and integration of WAWI
  • Integration of the blog into Shopware and provision of data for IoT application
Apr. 2019 - Okt. 2019
7 Monaten

Backend Developer

Cosinex GmbH & Public Plan GmbH

  • Languages: PHP7 (CakePHP 2), React JS, Java 8 & Spring Boot, MySQL
  • Infrastructure: private cloud service
  • Penetration tests on infrastructure and software
  • Team size: 3
  • Development methodology: Kanban (Jira/Confluence)
  • Ensured usability of the OSIP software by migrating an Oracle database
  • Consulting and support in the development of the client for aviation and nuclear safety
März 2019 - Juli 2021
2 Jahren 5 Monaten

Lead – Backend Developer

Personalwerk GmbH / ThyssenKrupp

  • Languages: PHP7 (Symfony 4 Flex), Vue.js, Vuex, Java Spring Boot, MySQL, Redis, WSDL/SOAP
  • Team size: 3
  • Development methodology: Git Issues, Milestones
  • Reduced importer run times by 75% through development of a data miner to fetch and cache multiple REST/SOAP APIs
März 2019 - Juni 2019
4 Monaten

Full Stack Developer

Trans Service Team GmbH

  • Languages: PHP7 (Slim), React JS, Java 8 & Spring Boot, MySQL
  • Penetration tests on infrastructure and software
  • Team size: 3
  • Development methodology: Kanban
  • Development of various REST APIs with accompanying frontends for internal use to simplify business processes
  • Management of driving orders and reduction of idle times in the high-bay warehouse fleet
Feb. 2019 - März 2019
2 Monaten

Software Developer

feder-software GmbH

  • Languages: Java 8 & Spring Boot, MySQL, Icinga2, Bash, Docker
  • Team size: 2
  • No formal development methodology
  • Set up a monitoring system to identify bottlenecks in various hardware and network areas
Feb. 2018 - Juni 2019
1 Jahr 5 Monaten

Head of Development

Wircon GmbH

  • Project planning and conception, project budgeting, leadership of an 8-member development team, reporting to management
  • Infrastructure: Google Cloud Services (Cloud Functions, Cloud SQL, Cloud VPC, IAM, IAP, Storage, Compute Engine), GitLab CI/CD, GitLab Docker Registry
  • Penetration tests on infrastructure and software
  • Languages: PHP7 (Symfony 3.4, ZF3), Node.js, NoSQL/SQL, HTML, CSS, React Native
  • Development methodology: Kanban (Jira/Confluence)
  • Development and deployment of various web applications (CRM, marketing tool, administration interface) including infrastructure planning
Apr. 2017 - Juni 2018
1 Jahr 3 Monaten

Senior System Engineer

Ministry Group GmbH

  • Languages: PHP7 (Symfony 3.4, native), HTML5, JavaScript, CSS3, Bash, Shell script, SQL, React Native
  • Infrastructure: Linux, GitLab CI/CD + Jenkins, AWS Lambda testing
  • Team size: 4
  • Development methodology: Scrum
  • Development of various WordPress projects (ambassador.xing.com, pc-spende.de) and other web applications
  • Corporate network administration and support of on-site admin, reporting to management
  • Penetration tests on web applications
Feb. 2017 - März 2018
1 Jahr 2 Monaten

Android Developer

Deutsche Post AG

  • Languages: Java, SQL, SQLite, NoSQL, PHP7 (Symfony 3.4)
  • Infrastructure: Linux, Android 6, SQLite
  • Team size: 1
  • Development methodology: Git Issues
  • Development of an Android application with voice control
Jan. 2016 - März 2017
3 Monaten

Full Stack PHP Lead Developer

KB&B

  • Languages: HTML5, JavaScript, SQL, PHP7 (native)
  • Infrastructure: Linux, Apache, MySQL
  • Team size: 1
  • Development methodology: Scrum
  • Development of an in-house framework
Juli 2016 - Dez. 2016
6 Monaten

PHP Backend Developer

BAKS GmbH

  • Languages: PHP, XML, JSON, HTML5, CSS
  • Team size: 2
  • Developed and deployed a backend solution for invoice generation to replace manual processes
  • Optimized customer management by developing a CRM
Apr. 2016 - März 2017
1 Jahr

Full Stack PHP Lead Developer

Effektor GmbH

  • Languages: HTML5, CSS, PHP7 (native, WordPress), SQL
  • Infrastructure: Linux, Apache, MySQL
  • Team size: 5
  • Development methodology: Git Issues
  • Development and deployment of multiple WordPress sites for clients
  • CSS and JavaScript optimizations
Mai 2014 - Juni 2016
2 Jahren 2 Monaten

Head of Development & Administration

Perennial AG (Aeroflot)

  • Consulting and conceptualization for setting up data centers in Moscow and St. Petersburg
  • Administration, monitoring, and support of OpenStack cloud (14 nodes) in both locations
  • Administration, monitoring, and 3rd level support of corporate servers and e-commerce system developed for Aeroflot
  • Development of interfaces for data processing
  • Development of an e-commerce front and backend for cross-selling insurance, car rental, and hotels
  • Development and hosting of multiple WordPress landing pages with security measures
  • Languages: PHP (Symfony, ZF1), XML, JSON, HTML5, CSS3, Bash, SQL, Java (Selenium tests)
  • Infrastructure: Linux, OpenStack, MySQL, Oracle
  • Development methodology: Scrum
Okt. 2010 - Bis heute
14 Jahren 9 Monaten

Senior System Engineer

Freelance

  • Own products:
  • CleanCode Studio CRM (Java 6), currently refactoring to Java 11 and Spring Boot
  • iOS and Android development with React Native
  • Python and machine learning (self-instructed & Udemy)

Zusammenfassung

I am a seasoned senior developer with extensive experience in Flutter, C#, PHP, JavaScript, and cloud infrastructure. I have led teams on projects ranging from e-commerce platforms to mobile applications and blockchain games. I focus on developing robust solutions through hands-on coding, architectural planning, and process coordination in agile environments.

My work spans industries including e-commerce, cloud computing, and web3. I take pride in optimizing performance and streamlining operations with modern technologies like Symfony, Vue.js, Docker, and Google Cloud. I continually embrace new challenges while delivering reliable and innovative results.

Sprachen

Deutsch
Muttersprache
Englisch
Verhandlungssicher

Ausbildung

Jan. 2009 - Juni 2011

Xplosion Interactive

Fachinformatiker AE · Hamburg, Deutschland

Sept. 2001 - Juli 2004

Karstadt Warenhaus AG

Kaufmann im Einzelhandel · Hamburg, Deutschland

Zertifikate & Bescheinigungen

CCNA

Cisco

Oracle SCJA

Oracle

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