Aleksandr N.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Google Cloud Certified Architect Google Cloud Certified Developer Experienced Java Engineer with 10+ years of experience, more than 10000 UpWork hours and official UpWork Top Developer certificate. I specialise in large scale, high availability enterprise applications development (Web and Desktop), extensive knowledge of Spring stack and different Spring API-s, development of Spring-boot based microservice architecture, experience with different AWS API-s and AWS infrastructure setup. Complete full stack development of web applications from front-end to backend and production ready deployment to AWS. - Java Web & Desktop applications. - Spring Stack - Spring MVC, Spring Boot, Spring Security, Spring integration. - REST APIs integration, design and development. - Front End Development - React/Angular - Databases/ORM - MySQL, PostgreSQL, Spring Data/JPA/Hibernate. - ElasticSearch - AWS, Google Cloud - Google Cloud Certified Developer - Messaging - Kafka, JMS, ActiveMQ, and SQS and Google Cloud Pub/Sub Also interested in math, finance, quantitive analysis, complex algorithm design, competitive programming and computer security. Completed coursera courses : Cloud Engineering with Google Cloud (full professional certificate) Google Kubernetes Engine Parallel Programming in Java Algorithms I, II. Programming Languages Computer Networks Algorithms, Design and Analysis Software Security