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Senior Java Engineer L2 - Core Java, Concurrency & JVM - Financial ServicesJoin a large-scale financial services platform, supporting business-critical systems with high standards of reliability, security, and performance.Play a key role in the ongoing modernization of enterprise Java applications, including:Migrating legacy Java services to modern Java versions (Java 17 / Java 21)Refactoring existing codebases to improve scalability, performance, and maintainabilityContributing to architectural evolution toward modern, cloud-native patternsDesign and enhance high-performance backend systems, supporting both new features and platform evolution.Collaborate directly with senior client stakeholders in a highly autonomous, client-facing environment.Contribute to platform stability by participating in production-related activities, while keeping development and modernization as the primary focus.QualificationsYour Skills and ExperienceStrong hands-on experience with Java in enterprise-scale systems, ideally within regulated or high-availability environments.Proven experience working with modern Java versions, including Java 17 and Java 21.Solid understanding of Core Java fundamentals, including:Java Collections Framework (List, Set, Map, concurrency-aware collections)Object-oriented principles and enterprise design patternsStrong background in concurrency and multithreading, including:ExecutorService, thread pools, synchronization strategiesDesigning thread-safe, high-performance systemsExperience optimizing backend performance across:REST APIsSQL queries and data access layersMicroservices interactions and data processing flowsStrong understanding of REST API concepts, including:HTTP methods, status codes, idempotencyAPI versioning, error handling, and performance considerationsHands-on experience implementing security best practices,



including:Authentication and authorization with Spring SecurityOAuth and JWTProven experience in JVM analysis and tuning, including:Memory management and garbage collectionThread dumps vs. heap dumps: when to use each and how to analyze themPerformance troubleshooting using tools such as JConsole, JVisualVM, or similarUnderstanding and practical use of JMXLocal debugging and remote debugging of Java applicationsStructured debugging methodologies for production and non-production environmentsFamiliarity with basic Unix/Linux commands for troubleshooting and system inspection.Solid understanding of build and dependency management, including:Maven concepts (lifecycle, dependencies, plugins, profiles)Familiarity with NoSQL databases, with MongoDB preferred.Understanding of event-driven architectures, including Kafka or similar messaging platforms.Experience working in AWS-based environments (strong plus), with exposure to multi-cloud or hybrid cloud environments as a bonus.Strong communication skills, able to explain technical decisions and findings clearly in discussions with senior stakeholders.Set Yourself Apart WithExperience modernizing enterprise Java platforms in financial or regulated industries.Demonstrated JVM tuning and performance optimization work.Background designing high-throughput, secure, event-driven backend systems.Exposure to cloud-native, multi-cloud, or hybrid architectures.Comfort leveraging AI tools to improve engineering productivity.Experience working directly with senior stakeholders in client-facing roles.Company DescriptionWe’re looking for a Senior Java Engineer to join a large-scale financial services platform in the middle of an active Java modernization journey. In this role, you’ll help migrate and evolve legacy systems toward modern Java (17/21) and cloud-native architectures on AWS, working on performance-critical, secure, and highly scalable services that run in production at scale.#J-18808-Ljbffr

Postúlate en Kit Empleo: kitempleo.com.co/empleo/1aaeic

📌 Senior Java EngineerCore Java, Concurrency & Jvm - Financial Services (Cundinamarca)
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