Job Description

Your 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.

Qualifications

Your 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 Description

We’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.

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