Ahmet BAYIRLI

Independent Contractor

Apr 2019 - Present • 7 yrs 3 mos

Independent Contractor — Senior Software Developer / Consultant(2019- Present) Providing expert-level software consultancy and R&D engineering services for a diverse range of industries, including EdTech, HealthTech, and AI-driven startups. Specializing in the end-to-end digital transformation of legacy native mobile systems into modern Flutter architectures. Beyond full-stack development using Java 11, React.js, and C#, I focus on high-impact Research & Development projects involving IoT sensor integration and biometric AI modeling. Proven track record in leading technical teams, mentoring junior developers, and delivering scalable solutions for both local and international clients. • Flutter Leadership: Led the end-to-end migration of legacy native (Android/iOS) applications to a unified Flutter architecture, achieving a 40% reduction in maintenance costs. • Mobile Ecosystem: Developed high-performance applications using Dart, Flutter. Deep understanding of State Management patterns; expert in Provider, with the ability to rapidly adapt to BLoC or Riverpod based on project requirements. • AI Integration: Engineered a specialized AI agent for biometric character analysis using computer vision, bridging the gap between mobile UI and advanced backend AI logic. • Full-Stack Agility: Delivered modern web interfaces using React.js and Vue.js, ensuring seamless integration with Java/C# backends. • Mentorship: Established Flutter best practices and mentored junior developers to ensure high code quality and test coverage (Unit/Widget testing).

IT Expert

Nov 2012 - Apr 2019 • 6 yrs 5 mos

Student Selection And Placement Center (ÖSYM) — IT Expert (2012 – 2019) Architected and managed mission-critical national assessment infrastructures serving millions of candidates under extreme security constraints. Developed high-availability systems using Java, Play Framework, and JavaFX, focusing on the complete lifecycle of secure exam data. My role involved engineering air-gapped software environments, automated evaluation engines, and real-time candidate monitoring systems. I pioneered the integration of Assistive Technologies (A11y/JAWS) into national platforms, ensuring inclusive digital experiences while maintaining zero- compromise data integrity and encryption protocols. • e-Exam Infrastructure: Led the full-cycle development of the national Electronic Exam platform, managing 5,000+ workstations with real-time data processing. • Secure Content Delivery: Engineered automated exam preparation workflows, transforming raw question pools into encrypted digital and print-ready formats. • Accessibility Leadership (A11y): Implemented specialized UI/UX layers for visually impaired candidates, integrating industry-standard screen readers like JAWS. • High-Concurrency Systems: Developed decentralized coordination modules using JavaFX to handle thousands of concurrent user sessions without latency. • Automated Evaluation: Replaced legacy third-party software with a proprietary Open-Ended Exam Scoring System, utilizing complex multi-rater arbitration logic.

Programmer

Nov 2006 - Nov 2013 • 7 yrs

Social Security Institution (SGK) — Programmer (2006 – 2012) Developed and maintained large-scale national social security and healthcare provision modules, handling sensitive citizen data for the entire population. Engineered robust backend architectures using Java (Struts2, Hibernate) and IBM DB2, focusing on high-performance transactional processing. My responsibilities included automating complex legal and financial calculations, integrating multi-institutional SOAP/REST web services, and optimizing database queries for high-traffic environments. This period focused on building fault-tolerant enterprise systems that manage national fund distributions and healthcare eligibility. • Pension Calculation Engine: Developed high-precision algorithms for national pension eligibility, translating complex legal frameworks into reliable Java logic. • Healthcare Integration: Managed the National Health Insurance provision system, facilitating real-time pharmacy and hospital integrations. • Database Optimization: Optimized complex IBM DB2 and SQL Server schemas to ensure millisecond-level response times for national-scale queries. • Enterprise Modernization: Led the transition of legacy modules to modern MVC architectures using Struts2 and Hibernate ORM. • Process Automation: Streamlined social assistance workflows for millions of beneficiaries, ensuring zero-error tolerance in financial aid distribution.