Hakan S.-Senior Software Developer
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Experience
Freelance Software Developer
NÜRNBERGER Versicherung
- Implementation of the 2026 product roadmap in the property and casualty insurance area (quotation and policy administration)
- (Further) development of insurance products such as accident, residential building, commercial building, business contents and commercial liability insurance
- Technical implementation of product requirements in an agile SCRUM environment (from conception to go-live)
- Contribution to enablement topics for Private and Business Line, particularly the introduction of intermediary collection
- Ensuring software quality through continuous error analysis and resolution throughout all project phases
- Close coordination in the agile planning process and iterative detailing of requirements Structured knowledge transfer including documentation and sustainable assurance of maintainability and further development
Senior Software Developer
ConVista Consulting GmbH
- Migration of existing policy data in various lines of business, such as commercial and residential building insurance.
- Implementation with Spring Batch, including data preparation, validation and automation of the migration processes.
- Focus on stable, error-free processes and ensuring data integrity during the migration.
- Mentoring trainees in the trainee program (January 2025 – June 2025): Java development and Spring architectures.
- Design of complex backend systems with production-ready insurance solutions using Java, Spring and modern web technologies.
Software Developer
ConVista Consulting GmbH
- Implementation of a modernization project: introduction of a modern policy administration and claims system.
- Implementation of business requirements for travel insurance at Versicherungskammer Bayern (VKB).
- Development and integration of interfaces to collection/disbursement, commission, printing and partner systems.
- Focus on high-performance and scalable backend solutions.
- Combining technical excellence with clear communication to successfully lead projects.
Software Developer (Java / Spring)
ConVista Consulting GmbH
- Support with performance tests for an insurance quotation system at Nürnberger Versicherung.
- Use of JMeter and Selenium WebDriver to measure server load and real user interactions in the quotation process.
- Identification of potential bottlenecks and creation of meaningful reports.
- Technologies: Vaadin, Typescript, Angular, Postgres, Camunda, OpenShift, Maven, Git.
Software Developer
ConVista Consulting GmbH
- Development of a Spring Boot-based partner system for insurance companies from the ground up.
- First production deployment at the customer Provinzial.
- Contribution to partner migration as well as implementation, integration and optimization of system components in close coordination with business departments.
Industry experience
See where this freelancer has spent most of their professional time.
Experienced in Insurance.
Business area experience
See which departments and functions this freelancer has contributed to most.
Experienced in Information Technology, Product Development, and Quality Assurance.
Summary
As a Senior Software Developer with strong expertise in Java, Spring and modern web technologies, I design complex backend systems – especially in the insurance sector. My strength: combining technical excellence with clear communication to successfully drive projects forward. Quality is non-negotiable. I am looking for new challenges where I can apply my experience effectively.
Skills
Java / Spring
Vaadin
Typescript
Angular
Postgres
Camunda
Openshift
Maven
Git
Solution-Oriented And Analytical Approach
Proactive Action
Effective Time Management And Prioritization
Realistic Implementation
Languages
Education
Technische Universität Wien
Master of Science in Computer Science · Computer Science · Vienna, Austria
Technische Universität Wien
Bachelor of Science in Computer Science · Computer Science · Vienna, Austria
Statistics
Experience
Expertise
Qualifications
Frequently asked questions
Have questions? Find more information here.
Hakan is based in Vienna, Austria and prefers 100% remote projects.
Hakan speaks the following languages: Turkish (Native), German (Advanced), English (Advanced).
Hakan has at least 8 years of experience. During this time, Hakan has worked in at least 4 different roles and for 2 different companies. The average length of individual experience is 2 years and 7 months. Note that Hakan may not have shared all experience and actually has more experience.
Based on recent experience, Hakan would be well-suited for roles such as: Freelance Software Developer, Senior Software Developer, Software Developer.
Hakan's most recent position is Freelance Software Developer at NÜRNBERGER Versicherung.
In recent years, Hakan has worked for NÜRNBERGER Versicherung and ConVista Consulting GmbH.
Hakan is most experienced in industries like Insurance.
Hakan is most experienced in business areas like Information Technology, Product Development, and Quality Assurance.
Hakan has recently worked in industries like Insurance.
Hakan has recently worked in business areas like Information Technology, Product Development, and Quality Assurance.
Hakan holds a Master in Computer Science from Technische Universität Wien and a Bachelor in Computer Science from Technische Universität Wien.
Hakan will be available part-time from July 2027.
Daily rate distribution
The rates shown represent the typical market range for freelancers in this position based on recent contracts on our platform.
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 7 Nov 2026. Actual rates may vary depending on seniority level, experience, skill specialization, project complexity, and engagement length.
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