Senior Backend Developer ( C++ and Payment)

Linuxconfig; Singapore; On-site; SGD 130,000 - 190,000; Full time

Job summary

Encora is seeking a Senior Backend Developer (C++ and Payment) to design, develop, and optimize backend services for payment processing and transaction switching. You will integrate with Visa, Mastercard, Amex, and UPI while contributing to Base24-eps deployments on Linux/Cloud.

The ideal candidate has hands-on C++ backend experience in Linux environments, with knowledge of payment gateways, PCI-DSS compliance, and AWS.

Qualifications

• Proven backend development experience with C++ for enterprise-grade applications.
• Strong Linux (RHEL preferred) backend development skills.
• Experience with payment systems (gateways, switching) and international schemes.
• Hands-on with Linux shell scripting (Korn Shell preferred).
• Experience with AWS cloud environments for backend payment apps.
• Experience with IBM MQ middleware for enterprise messaging.

Responsibilities

• Design, develop, and enhance backend services for payment processing and switching platforms.
• Integrate with international payment schemes (Visa, Mastercard, Amex, UPI, etc.).
• Support migration initiatives, including Base24-eps on Linux/Cloud environments.
• Analyze requirements and contribute to architecture and technical documentation.
• Develop high-performance backend components for large-scale transaction processing.
• Collaborate with QA, frontend, banks, vendors, and payment partners.
• Ensure PCI-DSS and secure transaction processing practices are followed.
• Document system architecture, integration flows, and specifications.

Skills

C++ development

Backend development

Shell scripting

PostgreSQL

AWS Cloud

IBM MQ

Base24-eps

PCI-DSS

Tools

PostgreSQL

IBM MQ

Base24-eps

Job description

Senior Backend Developer ( C++ and Payment)

Key Responsibilities

• Design, develop, and enhance backend services supporting payment processing and transaction switching platforms.
• Develop and maintain integrations with international payment schemes including:
• Visa
• Mastercard
• American Express
• UPI
• Support payment platform migration initiatives including implementation of Base24-eps on Linux RHEL / Cloud environments.
• Analyse technical requirements and contribute to solution design, architecture discussions, and technical documentation.
• Develop high-performance backend components for large-scale transaction processing environments.
• Perform system optimization, troubleshooting, and performance tuning for payment switching platforms.
• Work closely with QA teams, frontend teams, business stakeholders, banks, vendors, and payment partners.
• Ensure solutions comply with payment security requirements including:
• PCI-DSS standards
• Secure transaction processing practices
• Document system architecture, integration flows, and technical specifications.

Mandatory Skills & Elaboration

Backend development experience with strong hands-on programming using C++ for enterprise-grade applications and transaction processing systems

Strong experience developing backend applications running on Linux environments, preferably RHEL

Experience in payment systems including payment gateways, transaction processing, card payments, or switching platforms

Experience integrating with international payment schemes such as Visa, Mastercard, Amex, UPI or similar payment networks

Hands-on experience with Linux shell scripting, preferably Korn Shell scripting

Experience working with PostgreSQL or relational databases in backend applications

Experience with AWS Cloud environments supporting backend/payment applications

Experience with IBM MQ middleware for enterprise messaging/integration

Experience with Base24-eps payment switching platform

Experience with payment security standards including PCI-DSS and secure transaction processing practices

About Encora

Encora is a global company that offers Software and Digital Engineering solutions. Our practices include Cloud Services, Product Engineering & Application Modernization, Data & Analytics, Digital Experience & Design Services, DevSecOps, Cybersecurity, Quality Engineering, AI & LLM Engineering, among others.

At Encora, we hire professionals based solely on their skills and do not discriminate based on age, disability, religion, gender, sexual orientation, socioeconomic status, or nationality