Job Summary: We are seeking a Senior Java Engineer to design, develop, and maintain scalable microservices and optimize production systems. Key Highlights: 1. Design and development of scalable microservices with Java 8+ and Spring Boot. 2. Advanced experience in concurrency and backend performance optimization. 3. Strong focus on code quality and testing. **Dresden Partners** connects talent with top-tier global companies. We are a bridge for employment opportunities, specializing in identifying and linking professionals with international companies in Mexico, LATAM, and the USA. We are currently looking for talent for the position: **Sr. Java Engineer.** **Experience:** * **8+ years of experience** working with Java. * Solid experience with **Java 8+ and Spring Boot**. * In-depth knowledge of **distributed systems architecture**. * Mastery of **design patterns** and **SOLID principles**. * Advanced experience in **concurrency, thread management, and backend performance optimization**. * Practical experience with **RDBMS (MySQL / Amazon Aurora)**. * Strong SQL fundamentals: Joins, subqueries, indexing, partitioning, and locking. * Demonstrable experience in **designing scalable database schemas for high-transaction systems**. * Solid knowledge of **Hibernate/JPA**, including handling common issues such as **N+1 queries** and lazy loading. * Experience with **AWS RDS/Aurora**, read replicas, and parameter groups. * Use of monitoring and observability tools: **CloudWatch, Performance Insights, Datadog, Grafana**. * Strong focus on **code quality and testing** (JUnit, unit & integration tests). **Responsibilities:** Design, develop, and maintain scalable microservices using **Java 8+ and Spring Boot**. * Design **scalable database schemas** for high-volume transactional systems, applying **normalization, partitioning, and sharding**. * Optimize SQL queries and resolve performance issues such as **full table scans**. * Analyze execution plans using **EXPLAIN / EXPLAIN ANALYZE** and cost-based optimizers. * Work with distributed architectures and apply microservice patterns. * Ensure high code quality, testability, and backend performance. * Monitor and optimize production systems using observability tools. **Language:** Advanced conversational English (interacts effectively with international teams) **Work Location:** Remote **We Offer:** * Direct hiring. * Statutory and above-statutory benefits. * Grocery vouchers. * Life insurance. * Dental plan. * Savings fund. * Training and more... If you meet the profile, please send your CV to the email indicated, specifying your salary expectations and mentioning the job title in the subject line. For further information, contact: **brenda.aguayo@dresdenpartners.com**