Pelin Sarıhan.

At Misli, I develop Java and Spring Boot microservices for high-traffic betting and gaming platforms. I work within a team covering betting, betting bulletins, games of chance, Arena and virtual games, combining product feature development with technical and infrastructure improvements across these domains.

Using Java 25 and Spring Boot, I build new capabilities while maintaining existing services and upgrading applications. My work spans asynchronous messaging with Kafka, RabbitMQ and AWS SQS, alongside the databases, caching and delivery tools that support these services.

• Java 25
• Spring Boot
• Apache Kafka
• RabbitMQ
• Redis
• AWS SQS
• PostgreSQL
• MySQL
• MongoDB
• Docker
• AWS
• CI/CD

I developed Java 21 and Spring Boot microservices for Getir’s push, campaign and SMS notifications across business domains. These notification systems used event-driven messaging with AWS services including SQS, alongside PostgreSQL and MongoDB.

My responsibilities also included maintaining existing services, upgrading Spring Boot applications and making technical improvements to the systems supporting these notification flows. The role combined new application development with ongoing work on services used across multiple domains.

• Java 21
• Spring Boot
• AWS SQS
• PostgreSQL
• MongoDB
• Apache Kafka
• RabbitMQ
• Redis
• REST APIs
• Docker
• AWS
• CI/CD

I developed and maintained product and catalog microservices at Hepsiburada, using Java 11 and Spring Boot. These services supported the product lifecycle from onboarding to live listings. My work included building new services, extending existing functionality and contributing to technical and infrastructure improvements throughout that lifecycle.

Alongside feature development, I maintained services, upgraded Spring Boot applications and contributed to DevOps activities and BigQuery projects. The work involved Java 11, asynchronous messaging with Kafka and RabbitMQ, and a data stack spanning MongoDB, Elasticsearch and PostgreSQL.

• Java 11
• Spring Boot
• Apache Kafka
• RabbitMQ
• MongoDB
• Elasticsearch
• PostgreSQL
• BigQuery
• Hazelcast
• Hystrix
• Docker
• Grafana
• REST APIs
• Domain-driven design
• CI/CD

I developed and maintained Java and Spring Boot microservices for product listings, seller workflows and partner integrations at eBay / GittiGidiyor. These services operated within high-traffic, event-driven systems. My contributions included variant-based pricing, product variant grouping, optional listing features, and seller document collection and approval workflows. I also helped modernize legacy monolithic applications into microservices, including product description services.

I built and maintained APIs for sellers and integration partners, coordinated technical discussions with integrators, and contributed to Google Ads reporting and product ad visibility features. I improved Excel-based product listing services and developed Kafka-based update and export capabilities, while maintaining microservices, upgrading Spring Boot applications and resolving domain issues.

Alongside development, I served as Scrum Master, supporting team organization, coordination and communication. I also taught Apache Kafka and messaging systems to interns and recent graduates at GittiGidiyor Technology Academy.

• Java
• Spring Boot
• Hibernate
• Apache Kafka
• REST APIs
• SOAP
• Swagger
• PostgreSQL
• MySQL
• MongoDB
• Hazelcast
• Resilience4j
• Hystrix
• Docker
• HashiCorp Consul
• Instana
• Grafana
• Splunk
• Maven
• Git
• Domain-driven design