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Software Engineer Java

Date Posted: Jul 28, 2026

Job #1689148
Contract
O'Fallon, Missouri, USA

Our Client is seeking talented individuals to join our Network Solutions team in O'Fallon, MO.. They are researching and developing the next generation of products and services to enable consumers to securely, efficiently, and intelligently conduct transactions regardless of channel.

Responsibilities:
The Software Development Engineer is a hands-on developer specializing in Java development with a particular focus producing micro services that then integrate with other services to enable high throughput, low latency financial transaction processing.
What you will do:

  • Design components by translating product requirements, break down project into tasks and provide accurate estimates
  • Independently come up with different solutions, extensible Low-level design. Write modular, extensible, readable and performant code
  • Choose the right Data Structures, tools and tech stacks and be able to do High Level Designing with guidance
  • Research new frameworks and technologies, assist with prototyping and proof-of-concepts, participate in code reviews
  • Collaborate with teams by contributing to the shared vision and working closely with cross-functional stakeholders
  • You will be responsible for the components you (and or your team) build and will support them till the time they are live in production

Required Skills:

  • Excellent communication skills with the ability to communicate with all levels of management
  • Ability to build rapport and relationships
  • Someone understanding the concept of operations first, focusing on usability, operability of applications from the get-go
  • Problem solver and solution-seeking approach
  • Hands on experience in building complex and highly scalable and performing systems
  • Solid understanding and hands-on experience in Java, J2EE, Spring, Spring Boot, Kafka, RESTful web services and JPA
  • You have experience in building AI assisted application, autonomous and semi-autonomous agents and agentic workflow systems that coordinate multi-step tasks.
  • Strong belief in continuous refactoring and adhering to S.O.L.I.D design principles.
  • Exposure to building cloud ready applications (microservices)
  • Practitioner of Test Driven Development
  • Exposure to Continuous Delivery and Integration
  • Agile Scrum experience

Education & Work Experience

  • Bachelor's Degree
  • 4+ years of work experience

Title Sr Java Developer
Location O'Fallon, MO
Client Industry Finance
Compensation $60-75/hr

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