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Maximilian Hammer

Senior Developer

Maximilian Hammer
Bangkok, Thailand

Experience

Oct 2020 - Jun 2022
1 year 9 months
Berlin, Germany

Senior Developer

Senacor Technologies AG

  • Test-driven further development of a cross-brand credit card banking system including back-office applications for a leading German bank with 2.5 million customers, based on a microservices architecture, implemented in Java 8-17, Spring Boot, Angular, SQL, Docker and Kubernetes
  • Technical lead for implementing a back-office portal to deliver marketing campaigns, messages and documents based on up to 50 configurable customer attributes
  • Leading and improving the development and DevOps guilds for cross-team agile collaboration
Jun 2019 - Sep 2020
1 year 4 months
Berlin, Germany

Developer

Senacor Technologies AG

  • Improved the synchronous login process from a maximum of 10 logins/s to 250 logins/s by converting the affected microservices and interfaces to asynchronous communication
  • Migrated 30 microservices (~4000 tests) from JUnit 4 and Spock to JUnit 5 to create a unified, easier-to-understand and maintainable baseline for test-driven development
Jan 2018 - Jun 2018
6 months
Cologne, Germany

Department Manager

Next Level Integration GmbH

  • Led the Customer Portals department, including managing a team of six on-site staff
  • Planned sprints and coordinated with ten team members at the nearshore locations in Leipzig and Braşov
Sep 2015 - Dec 2017
2 years 4 months
Cologne, Germany

Developer

Next Level Integration GmbH

  • Managed the project, implementation and further development of rate and business customer portals for energy providers with up to 100,000 customers and a scope of up to 350 person-days
  • Implemented using a microservices architecture that uses REST for communication and is built with Java 8, AngularJS, Jetty and relational databases
Jul 2014 - Apr 2015
10 months
Altenstadt an der Waldnaab, Germany

Developer

Speed4Trade GmbH

  • Increased the update rate of eBay listings, limited to 100,000 calls/day, by integrating the asynchronous eBay MIP (100,000 listings/hour) for customers with up to 250,000 listings
May 2012 - Present
13 years 11 months
Germany

Developer

Taxi Renner GbR

  • Continuously developed a production web app in use for over 10 years to track more than 20,000 shifts, including 70,000 rides, and to support payroll and invoicing

Industries Experience

See where this freelancer has spent most of their professional time. Longer bars indicate deeper hands-on experience, while shorter ones reflect targeted or project-based work.

Experienced in Transportation (14 years), Information Technology (4 years), Energy (2.5 years), Banking and Finance (1.5 years), and Retail (1 year).

Transportation
Information Technology
Energy
Banking and Finance
Retail

Business Areas Experience

The graph below provides a cumulative view of the freelancer's experience across multiple business areas, calculated from completed and active engagements. It highlights the areas where the freelancer has most frequently contributed to planning, execution, and delivery of business outcomes.

Experienced in Information Technology (14 years), Accounting (14 years), Human Resources (14 years), Product Development (4.5 years), Project Management (3 years), and Quality Assurance (1.5 years).

Information Technology
Accounting
Human Resources
Product Development
Project Management
Quality Assurance

Skills

  • Languages And Frameworks: Java, Spring Boot, Angular, Node.js, Typescript, Javascript, Docker, Kubernetes
  • Tools: Git, Intellij Idea, Maven, Jenkins, Sonarqube, Grafana, Prometheus, Splunk, Jira, Confluence

Languages

German
Native

Education

Nov 2012 - Jun 2014

Speed4Trade GmbH

Vocational training as an IT Specialist in Application Development · IT Specialist in Application Development · Altenstadt an der Waldnaab, Germany

Profile

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Frequently asked questions

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

Where is Maximilian based?

Maximilian is based in Bangkok, Thailand.

What languages does Maximilian speak?

Maximilian speaks the following languages: German (Native).

How many years of experience does Maximilian have?

Maximilian has at least 14 years of experience. During this time, Maximilian has worked in at least 3 different roles and for 4 different companies. The average length of individual experience is 2 years and 4 months. Note that Maximilian may not have shared all experience and actually has more experience.

What roles would Maximilian be best suited for?

Based on recent experience, Maximilian would be well-suited for roles such as: Senior Developer, Developer, Department Manager.

What is Maximilian's latest experience?

Maximilian's most recent position is Senior Developer at Senacor Technologies AG.

What companies has Maximilian worked for in recent years?

In recent years, Maximilian has worked for Senacor Technologies AG and Taxi Renner GbR.

Which industries is Maximilian most experienced in?

Maximilian is most experienced in industries like Transportation and Logistics, Information Technology (IT), and Energy. Maximilian also has some experience in Banking and Finance and Retail.

Which business areas is Maximilian most experienced in?

Maximilian is most experienced in business areas like Information Technology (IT), Accounting, and Human Resources (HR). Maximilian also has some experience in Product Development, Project Management, and Quality Assurance (QA).

Which industries has Maximilian worked in recently?

Maximilian has recently worked in industries like Transportation and Logistics, Banking and Finance, and Information Technology (IT).

Which business areas has Maximilian worked in recently?

Maximilian has recently worked in business areas like Information Technology (IT), Accounting, and Human Resources (HR).

What is Maximilian's education?

Maximilian attended Speed4Trade GmbH for IT Specialist in Application Development.

What is the availability of Maximilian?

The availability of Maximilian needs to be confirmed.

What is the rate of Maximilian?

Maximilian'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 Maximilian?

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

Average rates for similar positions

Rates are based on recent contracts and do not include FRATCH margin.

800
600
400
200
Market avg: 500-660 €
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.