Quick Summary
This 13-month W2 Senior Software Engineer role, located hybrid in O Fallon, MO, and Illinois, United States, focuses on Java CI/CD automation within the payments industry, specifically for high-volume, low-latency transaction processing systems. Candidates need expert-level Java, Springboot, gRPC, and Event Driven Architecture experience, along with proven ability to create and deliver scalable products through CI/CD pipelines using Jenkins, automate infrastructure deployment with tools like Chef or Ansible, and write scripts in Python, Perl, PHP, JavaScript, or Go. A Bachelor's Degree in a technical field is preferred, and a Glider test is required for qualified applicants.
Role: Senior Software Engineer
Location: O Fallon, MO (Hybrid)
Duration: 13 Months !! Only W2 !!
Industry: Payments
Glider Test Required - please send submittal with candidate's email and we will send them the Glider test direclty if qualified.
Preferred Education:
- Bachelor's Degree in a technical-related field
Required Skills, Experience, & Abilities:
- Expert level of Java, Springboot
- Event Driven Architecture experience
- gRPC experience
- Extensive knowledge and experience with Java, Spring Boot, gRPC
- Ability to understand larger upstream/downstream data flows.
- Ability to communicate technical and data mapping details effectively in larger forums with people inside and outside our group.
- Engineering experience, preferably in high volume, low latency transaction processing systems (such as payments transaction switching, high frequency trading systems or global real-time event streaming systems etc.)
- Experience in CI/CD pipeline creation via Jenkins.
- Delivered scalable products through a CI/CD pipeline deploying on-prem or in a public cloud infrastructure.
- Ensure quality across the full stack via rigorous CI/CD practices in all aspects of the SDLC (Builds, Test, and Deploy).
- Strong writing and verbal communication skills
Desired Skills:
- Good knowledge in creation and working with CI/CD pipelines using Jenkins
- Experienced in event driven systems (ActiveMQ, Apache Kafka, NATS, etc)
- Experience in financial system encryption (PIN Blocks, CHIP, CVC) would be beneficial
- Experience with testing frameworks and methodologies (Gtest, JUnit, BlazeMeter, mocking, etc.)
- Experienced in building platforms with Microservice architecture and RESTful APIs.
- Experience using cloud-native approaches running on Linux, leveraging Spring Boot
- Exposure to symmetric cryptography would be desired.
- Experience with virtualization like Cloud Foundry (PCF), Kubernetes (EKS), Docker etc.
Role:
Providing Innovative, Secure, and Reliable Switching Solutions is the lifeblood of the client's Core Products, we are currently seeking a passionate, collaborative, and experienced software engineer to join the Payment Networks Team.
Responsibilities:
- Ensure quality of one or more application codebases and alignment with development standards.
- Provides input into design of automation for full infrastructure deployment; manages review of and tests for compatibility and integration processes needed to connect with other devices
- Automates large scale systems spanning multiple locations and environments.
- Writes code automating public cloud, private cloud, and bare metal.
- Automates common tasks, deploy with an IaaS model, utilizing chef, ansible, or similar
- Ability to write moderately complex scripts and programs for automation, tools, frameworks, dashboards, alarms. (common uses: Python, Perl, PHP, JavaScript, Go).
- Orchestrates the deployment/maintenance of complex applications.
- Responsible for performance engineering of the enterprise software architecture.
- Significant code development, commitment of code/review of pull-requests, and modest day-to-day support duties.
For applications and inquiries, contact: [email protected]

