Csaba Miklos - Senior Java Backend Developer (Freelancer, 100% remote)

Q: Where is Csaba based?

Csaba is based in Paralimni, Cyprus and prefers 100% remote projects.

Q: What languages does Csaba speak?

Csaba speaks the following languages: Hungarian (Native), English (Advanced) .

Q: How many years of experience does Csaba have?

Csaba has at least 22 years of experience. During this time, Csaba has worked in at least 5 different roles and for 5 different companies . The average length of individual experience is 4 years and 4 months . Note that Csaba may not have shared all experience and actually has more experience.

Q: What is Csaba's latest experience?

Csaba's most recent position is Senior Java Backend Developer (Freelancer, 100% remote) at Unzer GmbH .

Q: What companies has Csaba worked for in recent years?

In recent years, Csaba has worked for Unzer GmbH and payolution GmbH .

Q: Which industries is Csaba most experienced in?

Csaba is most experienced in industries like Information Technology (IT) , Banking and Finance , and Education .

Q: Which business areas is Csaba most experienced in?

Csaba is most experienced in business areas like Information Technology (IT) , Product Development , and Project Management .

Q: Which industries has Csaba worked in recently?

Csaba has recently worked in industries like Banking and Finance .

Q: Which business areas has Csaba worked in recently?

Csaba has recently worked in business areas like Information Technology (IT) and Product Development .

Recommended expert

Paralimni, Cyprus

Experience

Sep 2024 - Present

1 year 6 months

Paralimni, Cyprus

Remote

Senior Java Backend Developer (Freelancer, 100% remote)

Unzer GmbH

Developed a new complex landing page in an AI-assisted (Cursor, Windsurf) Angular project, reducing implementation time by 3-5x
Implemented a greenfield Spring Boot backend system project containing RESTful APIs with PostgreSQL in an AI-assisted manner
Transformed Figma designs into responsive, pixel-perfect Angular web apps across all screen sizes in TypeScript aided by AI assists

Aug 2019 - Sep 2024

5 years 2 months

Vienna, Austria

Hybrid

Senior Java Backend Developer (Hybrid)

payolution GmbH

Designed and implemented a RESTful API module, automating manual Merchant Onboarding processes, achieving 300% improvement
Collaborated on decomposition of a monolithic application, enhancing system modularity and maintainability
Integrated SonarQube with GitHub code repositories, enabling better maintainability of a legacy code base
Integrated new codebase with a message queuing system using Apache Kafka
Optimized database queries, improving query performance by 10-15x
Participated in migration of monolithic software systems from on-premises to AWS cloud platform, including database migration (Oracle 19c to Amazon Aurora PostgreSQL/Amazon Oracle) and DevOps tasks
Developed automated tests for platform integrity verification
Provided configuration management solution under Ansible, enabling seamless migration on AWS Cloud in a database-agnostic approach
Managed junior developers, improving code quality and team productivity
Extended the project with Kotlin
Improved source code quality by maintaining SonarQube quality gates
Participated in technical decision making for migrating a document management system to a cloud solution
Provided a 4-eye principle backend solution for financially relevant pages
Collaborated with DevOps on platform fine-tuning: performance and configuration distribution

Mar 2015 - Aug 2019

4 years 6 months

Mattersburg, Austria

Java Software Developer (core component team)

I-NEW Communicative Solutions GmbH

Extended, integrated, and implemented new features for core components while maintaining the existing code
Handled bug reports and supported testers
Participated in performance-amending sessions

May 2011 - Mar 2015

3 years 11 months

Budapest, Hungary

Technical Project Leader

AdNovum Hungary Kft

Took part in upgrading, extension, and maintenance of the company's internal application (work time, project time & budget price management) and took full responsibility for the technical content
Managed the daily work of four developers, including quality supervision
Developed the company's World Wide Web site using an Enterprise Content Management System (Magnolia CMS)
Developed the Contract Management Tool module of a Swiss banking software: changed front-end UI (JSP), implemented frontend business logic and workflow (GWT), implemented backend business logic and backend workflow (Java), extended the persistence mechanism (Hibernate), implemented scheduled operations and export/import functionality

Aug 2004 - May 2011

6 years 10 months

Budapest, Hungary

Java Developer / Team Leader

Taninform Zrt.

Managed the cooperation of tester and developer groups
Managed and was an active developer member of the bug-fix team
Developed and maintained project builder and deployment scripts, including DevOps tasks in Python under a Linux system
Performed deep diagnosis of the application using the JProfiler profiler
Participated in the development of a greenfield project: an online school administration system
Participated in the implementation of the software architecture for both the user interface and the backend

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 Information Technology (15 years), Banking and Finance (10.5 years), and Education (7 years).

Information Technology

Banking and Finance

Education

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 (21.5 years), Product Development (12 years), and Project Management (4 years).

Information Technology

Product Development

Project Management

Summary

Proven Senior Java Backend Developer with extensive experience, currently working as a freelancer. Skilled in designing and maintaining backend systems, integrating cloud technologies, and delivering scalable solutions. Passionate about leveraging AI-assisted development tools (Cursor AI, Windsurf AI) to accelerate software delivery and maintain high code quality. Open to remote opportunities in dynamic, collaborative teams.

Skills

Core Java 1.6, 1.8 (Expert)
Typescript (Advanced)
Sql (Expert)
Pl/pgsql (Advanced)
Yaml (Advanced)
Bash Scripting (Advanced)
Kotlin (Intermediate)
Python (Intermediate)
Cursor Ai Code Editor (Advanced)
Windsurf Ai (Cascade) Code Editor (Advanced)
Spring Framework (Expert)
Spring Boot 1.5, 2.x (Expert)
Tomcat / Glassfish / Jboss (Expert)
Git / Svn / Cvs (Expert)
Oracle Database 11g-19c (Expert)
Postgresql (Expert)
Hibernate / Eclipselink (Expert)
Wicket / Struts / Tapestry / Gwt (Advanced)
Log4j / Logback (Advanced)
Spring Batch / Quartz / Cron (Advanced)
Apache Activemq / Apache Kafka (Advanced)
Apache Camel (Intermediate)
Liquibase (Advanced)
Apache Maven / Ansible / Ant / Ivy (Advanced)
Mockito / Junit (Advanced)
Sonarqube (Advanced)
Splunk (Advanced)
Jira / Confluence / Bitbucket / Github (Advanced)
Postman (Advanced)
Mongodb (Intermediate)
Docker / Podman (Advanced)
Figma (Advanced)
Strong Problem-solving Skills
Expert In Coding
Extensive Technical Knowledge
Effective Communication
Leadership Experience
Ability To Mentor

Languages

Hungarian

Native

English

Advanced

Education

Oct 1998 - Jun 2001

Kecskemet College

Information Technology Engineer · Information Technology Profession · Kecskemét, Hungary

Certifications & licenses

AWS Certified Cloud Practitioner

OCAJP 7 Exam 1Z0-803 (SUN Certificate)

Oracle

Team Leader Training

Krauthammer

Profile

Created

November 2025

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Frequently asked questions

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

Where is Csaba based?

Csaba is based in Paralimni, Cyprus and prefers 100% remote projects.

What languages does Csaba speak?

Csaba speaks the following languages: Hungarian (Native), English (Advanced).

How many years of experience does Csaba have?

Csaba has at least 22 years of experience. During this time, Csaba has worked in at least 5 different roles and for 5 different companies. The average length of individual experience is 4 years and 4 months. Note that Csaba may not have shared all experience and actually has more experience.

What roles would Csaba be best suited for?

Based on recent experience, Csaba would be well-suited for roles such as: Senior Java Backend Developer (Freelancer, 100% remote), Senior Java Backend Developer (Hybrid), Java Software Developer (core component team).

What is Csaba's latest experience?

Csaba's most recent position is Senior Java Backend Developer (Freelancer, 100% remote) at Unzer GmbH.

What companies has Csaba worked for in recent years?

In recent years, Csaba has worked for Unzer GmbH and payolution GmbH.

Which industries is Csaba most experienced in?

Csaba is most experienced in industries like Information Technology (IT), Banking and Finance, and Education.

Which business areas is Csaba most experienced in?

Csaba is most experienced in business areas like Information Technology (IT), Product Development, and Project Management.

Which industries has Csaba worked in recently?

Csaba has recently worked in industries like Banking and Finance.

Which business areas has Csaba worked in recently?

Csaba has recently worked in business areas like Information Technology (IT) and Product Development.

What is Csaba's education?

Csaba holds a Bachelor in Information Technology Profession from Kecskemet College.

Does Csaba have any certificates?

Csaba has 3 certificates. These include: AWS Certified Cloud Practitioner, OCAJP 7 Exam 1Z0-803 (SUN Certificate), and Team Leader Training.

What is the availability of Csaba?

Csaba is immediately available full-time for suitable projects.

What is the rate of Csaba?

Csaba's rate depends on the specific project requirements. Please use the Meet button on the profile to schedule a meeting and discuss the details.