Java Software Engineer

Apexon; Dallas (TX); On-site; USD 110,000 - 140,000; Full time

Job summary

Apexon is seeking an experienced Java Backend Developer to join a high-performing engineering team supporting mission-critical trading applications for a leading Banking & Financial Services client. You will design, develop and maintain scalable Java backends, build microservices, and optimize for low latency and high availability.

The role involves collaborating with analysts, traders and DevOps, participating in architecture discussions, and adhering to Agile practices to deliver essential

Qualifications

• Experience building scalable backend applications using Java and Spring Boot.
• Hands-on development of trading platform solutions in financial services.
• Ability to design for high availability, low latency, and security.

Responsibilities

• Design, develop, test, and maintain high-performance Java backend apps.
• Build scalable microservices and RESTful APIs for trading systems.
• Develop low-latency, high-volume transaction processing solutions.
• Collaborate with analysts, traders, product owners, QA, and DevOps.
• Participate in architecture discussions and technical design decisions.
• Optimize performance, scalability, and reliability; troubleshoot issues.
• Write clean, documented code and perform code reviews.
• Engage in Agile ceremonies and backlog refinement.

Skills

Agile experience

Strong problem solving

Excellent communication

Education

Bachelor's or Master's in CS/IT/Engineering

Tools

Java

Spring Boot

Spring MVC

Spring Security

Spring Data JPA

Hibernate

Microservices

REST API

Maven/Gradle

Git

SQL (Oracle, PostgreSQL, SQL Server)

Multithreading & Concurrency

Collections Framework

JVM Tuning

Design Patterns

OOP

Job description

We are seeking an experienced Java Backend Developer to join a high-performing engineering team supporting mission-critical trading applications for a leading Banking and Financial Services client. The ideal candidate will have strong experience building scalable backend applications using Java and Spring Boot, along with hands-on experience developing solutions for Trading Platforms within the Investment Banking, Capital Markets, or Financial Services domain.

The successful candidate will work on enterprise-grade trading systems that require high availability, scalability, security, and low-latency processing.

Key Responsibilities

• Design, develop, test, and maintain high-performance Java backend applications.
• Build scalable microservices and RESTful APIs supporting trading and financial systems.
• Develop solutions for high-volume transaction processing and low-latency applications.
• Collaborate with business analysts, traders, product owners, QA engineers, and DevOps teams to deliver business-critical functionality.
• Participate in architecture discussions and contribute to technical design decisions.
• Optimize application performance, scalability, and reliability.
• Troubleshoot production issues and provide timely resolutions.
• Write clean, maintainable, and well-documented code following best engineering practices.
• Perform code reviews and ensure adherence to development standards.
• Participate in Agile ceremonies including sprint planning, daily stand-ups, retrospectives, and backlog refinement.

Required Technical Skills

• Strong experience with Java, Spring Boot, Spring MVC, Spring Security, Spring Data JPA, Hibernate, Microservices Architecture, REST API Development, Maven or Gradle, Git, SQL (Oracle, PostgreSQL, SQL Server), Multithreading & Concurrency, Collections Framework
• JVM Performance Tuning, Design Patterns, Object-Oriented Programming

Preferred Qualifications

• Experience building low-latency trading applications.
• Experience with distributed systems and high-throughput applications.
• Strong analytical and problem-solving skills.
• Excellent communication and collaboration skills.
• Ability to work independently in a fast-paced Agile environment.

Education:

Bachelor's or Master's degree in Computer Science, Information Technology, Engineering, or a related field.