Senior Software Engineer

We are working with a leading financial institution that provides comprehensive banking services, innovative digital solutions, and robust financial platforms to millions of customers. This company is committed to transforming its technology landscape and delivering cutting-edge financial products. The Role Design, develop, enhance, and support secure, scalable, and high-performing APIs and microservices for Payments, Money Movement, and Information Reporting platforms. Participate in the modernization and migration of APIs and integration services from on-premises environments to AWS cloud-native architectures. Develop cloud-native solutions leveraging AWS services including API Gateway, Lambda, ECS, Step Functions, SQS, SNS, DynamoDB, RDS, S3, IAM, KMS, and AWS Transfer Family. Build and maintain RESTful APIs and microservices using Java, Spring Boot, and AWS-native technologies while following enterprise architecture and security standards. Support and enhance existing API platforms by troubleshooting issues, implementing new functionality, improving resiliency, and optimizing performance. Implement secure coding practices and API security controls including authentication, authorization, encryption, and secrets management. What You'll Need 4+ years of experience in software application development and maintenance. 3+ years of proven experience building and migrating enterprise-scale APIs utilizing AWS technologies such as API Gateway, Lambda, ECS, Step Functions, SQS, SNS, DynamoDB, RDS, S3, IAM, and KMS. Expertise in Java, Spring Boot, Node.js, RESTful API development, microservices architecture, API security, and cloud-native application design. Experience with Terraform, Docker, OpenShift, Kubernetes, CI/CD pipelines, and event-driven architectures. Hands-on experience leading API modernization and cloud migration initiatives, including decomposition of monolithic applications into microservices. Experience with Application Performance Monitoring (APM) and observability tools such as Dynatrace, AppDynamics, AWS CloudWatch, Splunk, Grafana, or similar platforms. What's On Offer Opportunity to develop mission-critical payment APIs and shape the next generation of scalable financial services platforms. Advance expertise in cloud-native technologies and enterprise integration patterns. Engagement throughout the API lifecycle, including architecture, development, testing, deployment, governance, monitoring, troubleshooting, and production support. Collaborate closely with architects, engineers, product owners, and business stakeholders. Apply via Haystack today!