Job DescriptionYour Impact- Join 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 maintainability- Contributing to architectural evolution toward modern, cloud-native patterns- Design 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 Experience- Strong 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 patterns- Strong background in concurrency and multithreading, including:- ExecutorService, thread pools, synchronization strategies- Designing thread-safe, high-performance systems- Experience optimizing backend performance across:- REST APIs- SQL queries and data access layers- Microservices interactions and data processing flows- Strong understanding of REST API concepts, including:- HTTP methods, status codes, idempotency- API versioning, error handling, and performance considerations- Hands-on experience implementing security best practices,



including:- Authentication and authorization with Spring Security- OAuth and JWT- Proven experience in JVM analysis and tuning, including:- Memory management and garbage collection- Thread dumps vs. heap dumps: when to use each and how to analyze them- Performance troubleshooting using tools such as JConsole, JVisualVM, or similar- Understanding and practical use of JMX- Strong debugging skills, including:- Local debugging and remote debugging of Java applications- Structured debugging methodologies for production and non-production environments- Familiarity 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 With- Experience 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

📌 Senior Java EngineerCore Java, Concurrency & Jvm - Financial Services (Bogotá)
🏢 Publicis Sapient
📍 Bogotá