Mark Perg

Proven experience in secure development according to GDPR and ISO standards, design and development of software applications according to security requirements

Experience in CTO work including technical research and solution matching for small and medium-size companies around the world

Proven experience in design and development of SIM OTA management applications

Over 10 years of development of java application with tomcat
integration including: server customization (custom server implementations), modification of Tomcat server to stand with OWASP specifications and server performance tuning and troubleshooting

Proven experience in the development of JSON based API such as RESTlet.
Experience with JAVA/JSON based framework for internal and external communication including data presentation and data adapters.

Proven experience in developing stateless, multi clustered applications with shared state managed by Redis

Design and development of IoT admin portals for telecommunication companies with millions of end-users

Over 5 years of experience in Front-End development with JQuery/JSP/React and AJAX best practices for real-time client-server communication.

With over 10 years as Java software developer and architect, I have every skill to develop Java-based solutions that will much your requirements.

Extensive experience in Full stack development based on Java Back-End nd ReactJs/JSP Front-End.
Security by design, development of end-to-end applications with latest security practices applied for the solution

Over 10 years of software development based on MySQL and Oracle database.
Experience in schema design and performance tuning.

Over 10 years of software development based on MySQL and Oracle database.
Experience in schema design and performance tuning.

Design and development of real-time admin tools based on JQuery with native JS integration and AJAX calls

Design and development of multi cluster Cassandra data warehouse including integration with JAVA/Spark and performance tuning

Proven experience in creation of technical specifications based on latest available technologies, customer needs and technical limitations.

Design and development of Admin management systems developed in JAVA including software architecture, UX/UI design and persistent storage solution (including NoSQL)

Extensive experience in Full stack development based on Java Back-End nd ReactJs/JSP Front-End.
Security by design, development of end-to-end applications with latest security practices applied for the solution

Design and development of admin portal tolls and portals with high number of end users (2M).
Experience in design and development of multi-layer applications with secure content and permission management.

Design and development of JAX-WS APIs for internal communication. Design and Development of JAX-RS API's for Front-End to Back-End and internal communication based on RESTlet framework. Security by design, development of secured API's including token management and validation on API level

Over 5 years of experience in development of web applications based on Jquery/JSP and ReactJS

Over 10 years of development experience mainly in java including multi threader and multi clustering solutions. Extensive knowledge in JAVA memory management, JVM based development for performance tuning and software troubleshooting