Job Description

Senior Java Microservices Engineer – Payments

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Location: Hyderabad

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Experience: 6+ Years

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Employment Type: Full-Time

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Job Summary

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We are seeking an experienced Senior Java Microservices Engineer with strong expertise in Java, Microservices, AWS, distributed systems, and payment technologies.

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The ideal candidate will have deep hands-on experience designing and developing scalable backend systems using Java and Spring Boot, along with strong knowledge of AWS cloud services and modern microservices architectures. A strong understanding of the payments domain, particularly ACH, RTP, Zelle, SWIFT, and Federal Reserve (FED) payment systems, is highly important for this role.

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The candidate will be responsible for designing and delivering highly available, secure, resilient, and scalable payment solutions while working closely with architects, product teams, security, DevOps, and other engineering teams.

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Key Responsibilities

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Java & Microservices Development

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- Design, develop, and maintain scalable backend applications using Java and Spring Boot.
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- Build and enhance cloud-native microservices supporting high-volume payment processing.
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- Develop secure and resilient RESTful APIs and service integrations.
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- Apply strong object-oriented design, design patterns, clean coding practices, and SOLID principles.
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- Develop highly maintainable, testable, and production-ready code.
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- Participate in code reviews and provide technical guidance to other engineers.
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- Troubleshoot complex application and production issues.
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- Continuously improve application performance, scalability, and maintainability.
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Payments Domain

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- Design and develop solutions supporting payment processing and financial transaction workflows.
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- Demonstrate strong understanding of payment rails and financial messaging, including:
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- ACH
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- RTP (Real-Time Payments)
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- Zelle
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- SWIFT
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- Federal Reserve / FED payment systems
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- Understand payment transaction lifecycles, processing flows, settlement, clearing, routing, and exception handling.
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- Work with payment-related business requirements and translate them into scalable technical solutions.
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- Understand transaction status, acknowledgements, reversals, retries, reconciliation, and error-handling scenarios.
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- Design systems capable of processing high-volume and time-sensitive financial transactions.
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- Ensure payment applications meet appropriate reliability, security, and compliance expectations.
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System Design & Distributed Systems

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- Design highly scalable, resilient, and fault-tolerant distributed systems.
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- Lead technical design discussions for complex business and payment-processing requirements.
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- Apply distributed systems principles to address:
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- Scalability
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- Availability
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- Reliability
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- Fault tolerance
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- Data consistency
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- Concurrency
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- Idempotency
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- Distributed transactions
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- Design appropriate service boundaries and microservice architectures.
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- Evaluate synchronous versus asynchronous communication patterns.
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- Design event-driven solutions where appropriate.
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- Develop strategies for handling failures, retries, timeouts, circuit breakers, and partial system outages.
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- Analyze system bottlenecks and identify opportunities for performance optimization.
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AWS Cloud

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- Design, deploy,



and support cloud-native applications using AWS.
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- Work with AWS services such as:
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- EC2
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- ECS/EKS
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- Lambda
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- S3
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- RDS
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- DynamoDB
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- API Gateway
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- SQS/SNS
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- CloudWatch
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- IAM
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- Design secure and highly available AWS architectures.
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- Implement appropriate AWS networking, security, monitoring, and deployment patterns.
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- Optimize cloud applications for performance, scalability, reliability, and cost.
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- Troubleshoot application and infrastructure issues in AWS environments.
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Security & Compliance

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- Design applications following security-by-design principles.
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- Implement secure authentication and authorization mechanisms.
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- Apply appropriate encryption and data protection practices.
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- Work with AWS IAM, roles, policies, secrets, and least-privilege access.
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- Protect sensitive financial and customer information.
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- Ensure APIs and microservices follow enterprise security standards.
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- Collaborate with security and compliance teams to address application risks.
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- Understand security and compliance considerations applicable to financial services and payment applications.
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- Support audit, risk assessment, vulnerability remediation, and compliance activities.
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Reliability & Resilience

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- Design systems with high availability and strong operational resilience.
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- Implement fault-tolerant application and infrastructure patterns.
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- Develop appropriate retry, timeout, circuit-breaker, and fallback mechanisms.
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- Design for disaster recovery and business continuity requirements.
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- Implement monitoring, logging, alerting, and observability.
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- Analyze production incidents and conduct root cause analysis.
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- Drive continuous improvements to system reliability and operational performance.
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API & Integration

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- Design and develop RESTful APIs for internal and external integrations.
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- Integrate microservices with payment platforms and enterprise systems.
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- Work with synchronous and asynchronous integration patterns.
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- Handle JSON/XML and other financial data formats where applicable.
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- Implement API security, validation, error handling, and versioning.
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- Ensure APIs are scalable, reliable, and backward compatible.
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Testing & Quality

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- Develop comprehensive unit, integration, and automated tests.
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- Follow test-driven and quality-focused development practices where appropriate.
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- Validate application behavior under high-volume and failure scenarios.
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- Participate in performance and load testing.
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- Identify and resolve defects before production deployment.
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- Maintain strong code quality and engineering standards.
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CI/CD & DevOps

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- Work with DevOps teams to establish automated build, test, and deployment pipelines.
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- Participate in CI/CD processes using tools such as Jenkins, GitHub Actions, GitLab, or equivalent.
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- Support containerized application deployments using Docker and Kubernetes/EKS where applicable.




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- Implement automated quality and security checks within delivery pipelines.
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- Support production releases, rollback strategies, and deployment validation.
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Collaboration & Technical Leadership

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- Collaborate with:
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- Solution and Enterprise Architects
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- Product Managers
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- Payment Domain Experts
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- DevOps/SRE Teams
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- Security Teams
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- QA Engineers
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- Business Stakeholders
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- Translate business and payment requirements into technical designs.
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- Participate in architecture and design reviews.
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- Provide technical mentorship to junior and mid-level engineers.
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- Contribute to technical standards, reusable frameworks, and engineering best practices.
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Required Skills & Qualifications

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Must-Have

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- 6+ years of professional software engineering experience.
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- Strong hands-on experience with Core Java.
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- Strong experience with Spring Boot and Microservices.
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- Extensive experience designing and developing REST APIs.
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- Strong hands-on experience with AWS.
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- Strong understanding of distributed systems and system design.
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- Proven experience developing highly scalable and resilient applications.
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- Strong understanding of payment systems and financial transaction processing.
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- Hands-on or robust domain experience with ACH, RTP, Zelle, SWIFT, and/or FED payment systems.
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- Strong understanding of application security and compliance.
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- Strong troubleshooting and problem-solving capabilities.
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Preferred Technical Skills

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- Java 8/11/17+.
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- Spring Boot, Spring Cloud.
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- REST APIs and microservices.
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- Kafka or other event-streaming platforms.
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- AWS ECS/EKS, Lambda, SQS/SNS, API Gateway.
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- AWS RDS, DynamoDB, S3.
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- Docker and Kubernetes.
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- CI/CD and DevOps practices.
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- SQL and relational databases.
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- Redis or other caching technologies.
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- Distributed tracing and observability tools.
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- Git and modern source-control practices.
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Payments Domain Knowledge

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Candidates should have a strong understanding of one or more payment ecosystems, with preference for experience across multiple payment rails:

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- ACH: Automated Clearing House payment processing and transaction lifecycle.
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- RTP: Real-time payment processing, instant settlement, transaction status, and high-availability requirements.
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- Zelle: Digital account-to-account payment flows and associated transaction processing.
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- SWIFT: Financial messaging and international payment communication.
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- FED: Federal Reserve payment infrastructure and related transaction processing.
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Experience working with payment gateways, payment processors, transaction routing, clearing and settlement, reconciliation, fraud controls, or payment orchestration platforms is highly desirable.

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Security & Reliability Competencies

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The successful candidate should demonstrate:

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- Security-first application design.
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- Strong understanding of authentication and authorization.
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- Encryption and secure data handling.
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- IAM and least-privilege principles.
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- Secure API development.
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- High availability and fault tolerance.
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- Disaster recovery and resiliency.
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- Observability and production monitoring.
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- Incident management and root cause analysis.
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- Secure handling of sensitive financial and customer data.
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📌 Senior Java Microservices Engineer - Payments (Hyderabad)
🏢 IntraEdge
📍 Hyderabad