Senior Software Engineer Payment Systems

Senior Software Engineer – Payment Systems

Location: Hyderabad

Experience: 6+ Years

Role: Senior Software Engineer – Payments & Distributed Systems

Job Overview

We are looking for an experienced Senior Software Engineer with 6+ years of hands-on experience in software development, payment processing, distributed systems, and modern API-driven architectures. The ideal candidate will have strong knowledge of Wire, ACH, and RTP payment systems, along with expertise in REST APIs, microservices, backend processing, and event-driven architectures.

The candidate will be responsible for designing, developing, integrating, and supporting highly scalable and reliable payment applications that process critical financial transactions.

Key Responsibilities

• Design, develop, and maintain highly scalable payment processing applications supporting Wire, ACH, and RTP transactions.
• Develop robust backend services using REST APIs and microservices architecture.
• Build distributed systems capable of handling high-volume, concurrent, and mission-critical payment transactions.
• Design applications with strong focus on concurrency, thread safety, fault tolerance, scalability, and reliability.
• Develop backend processing components for transaction validation, routing, processing, status management, and exception handling.
• Implement secure and reliable integrations with internal and external payment systems.
• Work with API Connect (APIC) for API management, integration, routing, security, and enterprise connectivity.
• Develop and integrate event-driven services using messaging or event-streaming technologies.
• Design loosely coupled, asynchronous components to support scalable payment processing workflows.
• Develop frontend components and user interfaces using Angular, React, or Vue.js where required.
• Containerize applications using Docker and deploy/manage workloads using Kubernetes.
• Participate in application design, development, code reviews, testing, deployment, and production support.
• Troubleshoot complex application, integration, performance, and production issues.
• Collaborate with architects, product owners, QA engineers, DevOps teams, and business stakeholders.
• Contribute to technical documentation, development standards, and engineering best practices.

Required Skills & Experience

• 6+ years of professional software development experience.
• Strong experience in payment systems, preferably Wire, ACH, and RTP.
• Strong hands-on experience developing REST APIs and microservices.
• Strong understanding of distributed systems and high-volume transaction processing.
• Proven experience with concurrency and thread-safe application design.
• Strong backend development and transaction-processing experience.
• Experience with API Connect (APIC) or similar enterprise API management platforms.
• Hands-on experience with Docker and Kubernetes.
• Experience developing or supporting event-driven architectures.
• Good understanding of asynchronous processing, messaging, queues, and event-based integration.
• Experience with at least one modern frontend framework: Angular, React, or Vue.js.
• Strong understanding of software development lifecycle and Agile methodologies.
• Strong debugging, problem-solving, and analytical skills.

Preferred Skills

• Experience with spec-driven development and contract-first API development.
• Experience with OpenAPI/Swagger and API specifications.
• Knowledge of payment standards and financial transaction processing.
• Experience with Kafka or other event-streaming/messaging platforms.
• Experience with cloud platforms such as AWS, Azure, or GCP.
• Experience with CI/CD, Git, automated testing, and DevOps practices.
• Understanding of payment security, transaction integrity, auditability, and regulatory requirements.

Technical Skills

Payments: Wire | ACH | RTP

Backend: Microservices | REST APIs | Distributed Systems | Concurrency | Thread Safety

Integration: APIC | Event-Driven Architecture | Messaging

Frontend: Angular | React | Vue.js

Containers: Docker | Kubernetes

Development: Spec-Driven Development | API Design | Agile | CI/CD

Education

Bachelor's or Master's degree in Computer Science, Information Technology, Engineering, or a related technical discipline.

Key Competencies

Payment Processing | Microservices | REST APIs | Distributed Systems | Concurrency | Thread-Safe Design | Backend Processing | APIC | Event-Driven Architecture | Kubernetes | Docker | Angular/React/Vue