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  Strategic FinTech Engineer: Over 6 years of experience specializing in "Generation 3" ticketing and payment platforms. Expert in building high-conversion, low-latency systems handling millions of Euros in transactions.
  Full Stack Architecture: Deep expertise in the MERN Stack (MongoDB, Express, React, Node.js) and Java Spring Boot, focusing on headless API architectures and microservices.
  Performance & Scale: Proven track record of maintaining 99.99% uptime while managing 10,000+ concurrent users during high-pressure "ticket drops."
  Security & Compliance: Specialist in POPIA (South Africa) and global financial regulations (GDPR/PCI-DSS), implementing idempotent APIs and secure RBAC.
  Conversion-Centric Development: Skilled in engineering 1-click ordering systems and AI-driven automation that increases sales conversion by up to 21%.




Dynamic Senior Full Stack Developer with extensive experience at Sonata Corporation, excelling in cloud infrastructure and REST API creation. Proven ability to mentor junior developers while implementing security best practices. Adept at Agile methodologies, driving successful project outcomes through effective communication and innovative problem-solving skills.

As a software developer I have 7 years of experience and I have been able to carry out activities such as development in programming languages

such as Java in the Spring framework, C# netcore API, Python (Django, Flask), NodeJS (Express), creation of REST Webservice and SOAP.
I have not had the experience in mobile development but I have knowledge of native Android in Java with Android Studio, Xamarin Forms with C# and Flutter.
On the frontend side I have experience in developing web applications in JavaScript frameworks and libraries such as Angular, React, and I have a good command of vanilla JavaScript, JQuey, and AngularJS, HTML, CSS.
In database management of SQL stored procedures and advanced queries with SQL Server, MySql, PostgreSQL, Oracle and NoSQL engines such as MongoDB and Firebase.
Deploying applications in cloud services such as Azure, Firebase and Heroku.
Continuous Integration and deployment with Azure DevOps.
Management of versioning control such as GIT, SVN, Tortoise, Microsoft Team Foundation.

Senior Full Stack Developer specializing in scalable content platforms and CMS architecture. Proven success in leading end-to-end project development, integrating APIs, and mentoring junior developers while ensuring alignment with client goals and delivering high-quality software solutions. Accomplished Senior Full Stack Developer experienced in CMS architecture and full-stack solutions. Skilled in managing comprehensive project lifecycles, integrating third-party APIs, and fostering collaboration among development teams, ensuring seamless software deployments that meet client specifications and enhance user experience.

Dynamic Senior Full Stack Developer with a proven track record at Red Star Technologies, excelling in microservices architecture and API integration. Successfully mentored teams, enhanced application performance, and implemented CI/CD pipelines, showcasing strong problem-solving skills and a commitment to excellence in software development.


Sander Chen

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Senior Full Stack Developer

Java Technical Lead

Java Developer

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Bachelor of Arts - Finance

Vocational Education - Java Web Development

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Senior Full Stack Developer

Java Technical Lead

Java Developer

Vocational Education - Java Web Development

Bachelor of Arts - Finance

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