Connex Payment Systems Developer

Connex Developer

Job Summary
Synechron is seeking an experienced Connex Developer to lead the design, development, and support of high-volume, secure payment processing solutions. This role involves customizing and integrating Connex-based applications supporting financial transaction workflows, ensuring system stability, security, and regulatory compliance. The successful candidate will work closely with cross-functional teams to enhance system performance, support migrations, and implement automation, contributing to the organization’s digital improvement objectives.

Software Requirements

• Required:

  • Extensive experience with Connex systems, including core modules such as AP, TH, PI, and SDX (version 16.1 or higher)

  • Strong proficiency in TAL/pTAL, TACL, Guardian, and COBOL for development, scripting, and support activities

  • Expertise with relational databases (Oracle, SQL Server, PostgreSQL) including data modeling and performance tuning

  • Experience with message formats based on AS2805 and ISO standards for payment processing

  • Hands-on experience supporting payment simulators (e.g., MasterCard, VISA, FINSIM)

  • Knowledge of system architecture, especially regarding complex payment workflows and integration points

• Preferred:

  • Cloud deployment knowledge supporting hybrid or cloud-native Connex environments (AWS, Azure, GCP)

  • Support experience with system deployment, version management, and automation tools (Terraform, Ansible)

  • Familiarity with modern security practices like key management, PKI, and audit compliance standards

Overall Responsibilities

• Lead the support and enhancement of Connex systems related to payment processing, ensuring high availability and security

• Design and implement custom modules, workflows, and integrations aligned with client and industry standards

• Support system migrations, upgrades, and new feature development, ensuring minimal disruption and adherence to compliance standards

• Collaborate with technical and business teams to analyze requirements, develop technical specifications, and deliver reliable solutions

• Conduct root cause analysis, troubleshoot complex issues, and implement preventive measures for system stability

• Automate system processes and deployment tasks to support supportability and operational efficiency

• Maintain detailed documentation on system architecture, configurations, and operational procedures

• Lead incident management activities, including troubleshooting, root cause analysis, and resolution reporting

Technical Skills (By Category)

• Languages & Scripting:
  Required: TAL/pTAL, TACL, COBOL, Shell, Python (supporting automation support)
  Preferred: Java, JavaScript, or other scripting languages supporting system integrations

• Databases & Data Management:
  Oracle, SQL Server, PostgreSQL; experience with schema design, data validation, and performance tuning

• System & Middleware Support:
  Connex core modules, messaging standards (AS2805, ISO), and payment simulators support

• Deployment & Automation:
  Cloud platforms (AWS, Azure, GCP), Terraform, Ansible, support automation tools supporting high-volume, compliant system deployment

• Security & Compliance:
  Implementation of encryption, PKI, key management, audit trails supporting PCI DSS and industry standards

Experience Requirements

• 5+ years of experience supporting or developing Connex or similar payment systems in enterprise environments

• Proven success supporting high-availability, high-throughput payment applications

• Hands-on experience with payment messaging standards, batch processing, and system integrations

• Experience supporting system upgrades, migrations, and automation projects supporting regulatory compliance

• Industry experience in banking, financial services, or fintech preferred but not mandatory

Day-to-Day Activities

• Maintain and troubleshoot enterprise Connex payment systems and workflows

• Support system upgrades, custom module development, and integrations supporting transaction processing

• Diagnose, troubleshoot, and resolve performance, security, and connectivity issues

• Automate deployment, configuration, and support activities through scripting and support tools

• Collaborate with development, security, and infrastructure teams on system improvements

• Conduct root cause analyses, process reviews, and incident management activities

• Maintain comprehensive documentation including configuration, architecture, and operational procedures

Qualifications

• Bachelor’s or Master’s degree in Computer Science, Information Technology, or relevant field

• 5+ years of experience supporting and customizing Connex-based financial systems

• Certifications related to financial or support systems are a plus

• Proven ability to support secure, scalable, and high-performance payment ecosystems in enterprise settings

Professional Competencies

• Strong analytical and troubleshooting skills for high-volume, mission-critical payment systems

• Effective communication skills for stakeholder collaboration and documentation

• Leadership qualities to mentor junior developers and promote best practices

• Strategic thinking supporting system security, compliance, and performance goals

• Adaptability to evolving payment standards, security protocols, and system architecture best practices

• Time management skills for managing multiple support tasks and system upgrades

S​YNECHRON’S DIVERSITY & INCLUSION STATEMENT

Diversity & Inclusion are fundamental to our culture, and Synechron is proud to be an equal opportunity workplace and is an affirmative action employer. Our Diversity, Equity, and Inclusion (DEI) initiative ‘Same Difference’ is committed to fostering an inclusive culture – promoting equality, diversity and an environment that is respectful to all. We strongly believe that a diverse workforce helps build stronger, successful businesses as a global company. We encourage applicants from across diverse backgrounds, race, ethnicities, religion, age, marital status, gender, sexual orientations, or disabilities to apply. We empower our global workforce by offering flexible workplace arrangements, mentoring, internal mobility, learning and development programs, and more.

All employment decisions at Synechron are based on business needs, job requirements and individual qualifications, without regard to the applicant’s gender, gender identity, sexual orientation, race, ethnicity, disabled or veteran status, or any other characteristic protected by law.

Candidate Application Notice

Experience Level

Senior Level