Senior Java Engineer L2 - Core Java, Concurrency & JVM - Financial Services
Job ID: *********** | calle 93b No. 13 Bogota ****** Colombia | Others
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
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 ******)
and cloud-native architectures on
AWS
, working on performance-critical, secure, and highly scalable services that run in production at scale.
#J-*****-Ljbffr

📌 Technology And Engineering | Others Senior Java EngineerCore Java, Concurrency & Jvm - Fi[...] (Bogotá)
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