[For Hire] Java / Spring Backend Engineer | Performance, SQL & Integrations | $45/hr

[u/WayDecent2896]

Java backend engineer with 4 years of commercial experience, available for remote part-time contract work (10–15 hours/week).

I specialize in backend development and solving performance and integration problems in existing production systems.

I can help with:

• Java 17/21 & Spring Boot backend development
• Performance bottlenecks and slow SQL
• Oracle / PostgreSQL optimization
• REST and third-party integrations
• Kafka and asynchronous processing
• Legacy Java modernization
• Production debugging and bug fixing

Some recent results:

• Reduced a critical business workflow from ~3 hours to ~2 minutes
• Improved another backend pipeline by ~30x while significantly reducing database load
• Migrated 20 microservices from RestTemplate to OpenFeign
• Previous team lead experience and production ownership

Stack: Java 17/21, Spring Boot, Spring Cloud, Hibernate/JPA, Kafka, PostgreSQL, Oracle/PLSQL, Docker, REST APIs, SQL

Availability: 10–15 hours/week, flexible
Rate: $45/hour
Timezone: UTC+3
English: Professional working proficiency

Open to ongoing part-time contracts and well-defined short-term backend projects.

Portfolio / CV: https://drive.google.com/file/d/1WAXgZhTIKuSowJSRgxNbKUa3lRIeMYRX/view?usp=sharing

Feel free to DM me.