How to Hire Java Developers in 2026: A Practical Guide
A practical guide to hiring Java developers in 2026—what to look for, how to screen, salary ranges, and the interview questions that actually reveal real skill.
Founder & Senior Java Developer
Founder and lead developer at Katyella, specializing in Java enterprise applications and staff augmentation for mission-driven organizations.
A practical guide to hiring Java developers in 2026—what to look for, how to screen, salary ranges, and the interview questions that actually reveal real skill.
Master the Java Stream API: stream creation, intermediate vs terminal ops, collectors, parallel streams, and common performance pitfalls in production.
Learn how Java virtual threads work with Spring Boot 3.2+, when to use them, common pitfalls like thread pinning, and real performance benchmarks.
Build Spring Boot native executables with GraalVM: AOT compilation setup, reflection hints, Docker integration, and real startup/memory benchmarks vs JVM mode.
Spring Boot REST API best practices: HTTP status codes, exception handling, validation with @Valid, DTOs, pagination, API versioning, and OpenAPI documentation.
Spring Boot task scheduling with @Scheduled, cron expressions, fixed rate vs fixed delay, Quartz for distributed jobs, and thread pool configuration.
Containerize Spring Boot apps with multi-stage Dockerfiles, layered jars, Docker Compose for local dev, and health checks that actually work.
Master Spring Boot logging with Logback, SLF4J, structured JSON output, MDC request tracing, and log level strategies for production systems.
Set up Spring Boot caching with Redis using the Spring Cache abstraction. Covers @Cacheable, serialization, TTL, eviction, and production pitfalls.
Set up Spring Boot monitoring with Actuator, Micrometer, Prometheus, and Grafana. Covers custom metrics, health indicators, and production configuration.
Spring Boot security configuration with Spring Security 6, JWT authentication, OAuth2, and method-level authorization. Practical patterns for production apps.
Spring Boot Testcontainers integration testing with PostgreSQL, Redis, and Kafka. Covers @ServiceConnection and container reuse patterns.
Spring Boot error handling with @ExceptionHandler, @ControllerAdvice, RFC 7807 ProblemDetail, validation errors, and custom error pages.
Step-by-step guide for migrating Java 8 applications to Java 17. Breaking changes, new features, performance improvements, and migration strategies explained.
Architecture patterns for Spring Boot microservices. Service discovery, API gateway, circuit breakers, and data management strategies for production.
Select the perfect staff augmentation partner by evaluating cultural fit, technical expertise, and quality guarantees for mission-driven teams.
Simplify Spring Boot Version Migration with OpenRewrite
Three Tools to Keep Your Dependencies Up to Date in a Spring Boot Project
Learn how to set up and implement a GraphQL endpoint in Spring Boot with schema definition, resolvers, and testing examples.
Lessons from Tailwind Labs: Exploring Contract Hiring for Small Teams
Real-world look at Java's evolution from 8 to 18. The features that changed how we write Java code and why upgrading isn't always straightforward.
Build a Spring Batch job that exports database records to CSV and trigger it via HTTP POST using Spring Boot's JobLauncher.
Learn how to implement centralized configuration management in microservices using Spring Cloud Config Server.
How staff augmentation helps mission-driven companies scale with specialized talent, stay agile, and focus on their core mission without full-time hiring.
Learn three essential Lombok annotations (@Getter/@Setter, @NoArgsConstructor/@AllArgsConstructor, @ToString) to reduce Java boilerplate code.
Learn how to use the @SecondaryTable annotation in Spring Boot to map entities to multiple database tables effectively.