Senior Java Developer with expertise in Connex Payment Switch
4 weeks ago
Greater Chicago Area, IL, United States
Greymatter Innovationz
Full-time
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Greymatter Innovationz helps you stay digitally relevant across domains, technologies, and skillsets, every day.
We are looking for:
Senior Java Developer with expertise in Connex Payment Switch
Location:
Riverwoods, IL (Hybrid
- 3 days/week in-office) Experience Required: 8+ years in Java Development
Key Responsibilities
- Design, develop, and maintain high-volume applications on the Connex Payment Switch platform.
- Support transaction processing for credit, debit, ATM, POS, and digital payment channels.
- Build scalable Java/Spring Boot microservices and integrate switch applications with external banking networks.
- Handle production support, root cause analysis, and performance optimization for mission-critical systems. Required Experience & Technical Skills
- Core Tech Stack: Core Java (8/11/17), Spring Boot, Microservices, REST APIs, CI/CD, Git, Linux/Unix.
- Domain Expertise: Connex Payment Switch, ISO 8583 messaging standards, EMV, card payments, ATM/POS transaction flows.
- Databases: Oracle, SQL Server, or PostgreSQL. Nice to Have / Preferred
- AWS, Docker, Kubernetes, or Kafka experience.
- PCI DSS compliance knowledge and FIS payment products experience.
- Background in payment switch migration or modernization projects. Interested candidates can apply directly or send their updated resume to vik@greymatterinnovationz.com #JavaDeveloper #ConnexSwitch #PaymentSystems #Hiring #TechJobs #ChicagoJobs #SoftwareEngineering #FintechJobs At Greymatter Innovationz,
We offer
Motivating Work Environment. Excellent Work Culture. Help you to upgrade yourself to the next level. And More
Location:
Riverwoods, IL (Hybrid
- 3 days/week in-office) Experience Required: 8+ years in Java Development
Key Responsibilities
- Design, develop, and maintain high-volume applications on the Connex Payment Switch platform.
- Support transaction processing for credit, debit, ATM, POS, and digital payment channels.
- Build scalable Java/Spring Boot microservices and integrate switch applications with external banking networks.
- Handle production support, root cause analysis, and performance optimization for mission-critical systems. Required Experience & Technical Skills
- Core Tech Stack: Core Java (8/11/17), Spring Boot, Microservices, REST APIs, CI/CD, Git, Linux/Unix.
- Domain Expertise: Connex Payment Switch, ISO 8583 messaging standards, EMV, card payments, ATM/POS transaction flows.
- Databases: Oracle, SQL Server, or PostgreSQL. Nice to Have / Preferred
- AWS, Docker, Kubernetes, or Kafka experience.
- PCI DSS compliance knowledge and FIS payment products experience.
- Background in payment switch migration or modernization projects. Interested candidates can apply directly or send their updated resume to vik@greymatterinnovationz.com #JavaDeveloper #ConnexSwitch #PaymentSystems #Hiring #TechJobs #ChicagoJobs #SoftwareEngineering #FintechJobs At Greymatter Innovationz,
We offer
Motivating Work Environment. Excellent Work Culture. Help you to upgrade yourself to the next level. And More
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Chicago, Illinois, United States Greymatter Innovationz Full-timeGreymatter Innovationz helps you stay digitally relevant across domains, technologies, and skillsets, every day. We are looking for: Senior Java Developer with expertise in Connex Payment Switch Location: Riverwoods, IL (Hybrid - 3 days/week in-office) Experience Required: 8+ years in Java Development Key Responsibilities Design, develop, and maintain...
