01/11/2024 updated
CW
100 % available
Senior Java Developer
Frederiksberg, Denmark
Only remote
BSc, Computer ScienceJava (Programming Language)Application Programming Interfaces (APIs)SalesTechnology Strategies
Hello, I'm Christian Wittrock, a results-oriented and highly skilled Senior Java Developer based in Frederiksberg, Denmark. With a proven track record of designing and developing high-performance APIs to process streaming data, I have been instrumental in driving substantial increases in revenue for my employers. I am recognized for my ability to lead cross-functional teams and seamlessly integrate external technology solutions, resulting in significant sales growth.
Experience
Professional experience5 - 10 years
Freelancer since2023
Languages
EnglishFluent
Project history
*Designed / developed APIs that processed streaming data to power customer recommendation engines,
increasing incremental annual revenue to $1.2M.
*Strategically developed, monitored and enhanced Java Bean components to implement business logic that
streamlined an internal application by 14%.
*Led the routing of control from web services to Java services using the Camel framework, diminishing
development costs by $150,000 annually.
*Contributed knowledge, skills and expertise to all project life cycle phases, accomplishing 5 projects for the
company by far.
*Oversaw integration of an external technology solution by leading 5 developers and 9 testers from two
companies, resulting in an additional $1MM of sales.
*Reduced development costs by 20 percent by creating a plan to merge related products into one, more
streamlined product.
increasing incremental annual revenue to $1.2M.
*Strategically developed, monitored and enhanced Java Bean components to implement business logic that
streamlined an internal application by 14%.
*Led the routing of control from web services to Java services using the Camel framework, diminishing
development costs by $150,000 annually.
*Contributed knowledge, skills and expertise to all project life cycle phases, accomplishing 5 projects for the
company by far.
*Oversaw integration of an external technology solution by leading 5 developers and 9 testers from two
companies, resulting in an additional $1MM of sales.
*Reduced development costs by 20 percent by creating a plan to merge related products into one, more
streamlined product.
*Promoted within 19 months due to strong performance and organizational impact (one year ahead of
schedule)
*Facilitated three design thinking workshops for end users to identify use cases.
*Successfully conducted API design and development of RESTful Services in 3 months, enhancing operations of
the enterprise product in the business.
*Built web services with J2EE that were used by the customer-facing application to improve the time on page
for the average user by 3 minutes.
*Worked within an agile team of 4 developers, prioritizing/scoping feature requests to ensure that the biggest
impact features were worked on first.
schedule)
*Facilitated three design thinking workshops for end users to identify use cases.
*Successfully conducted API design and development of RESTful Services in 3 months, enhancing operations of
the enterprise product in the business.
*Built web services with J2EE that were used by the customer-facing application to improve the time on page
for the average user by 3 minutes.
*Worked within an agile team of 4 developers, prioritizing/scoping feature requests to ensure that the biggest
impact features were worked on first.
*Established, maintained, and developed an extensive test coverage for all new features which reduced the
number of customer complaints by 7%.
*Interviewed business clients to analyze their business requirement and recommend and design technological
improvements to their business processes and operational procedures.
number of customer complaints by 7%.
*Interviewed business clients to analyze their business requirement and recommend and design technological
improvements to their business processes and operational procedures.