Senior Software Engineer — Cloud-Native Payments Platform

Western Union; Austin (TX); Hybrid; USD 110,000 - 135,000; Full time

Benefits offered by this job

Health insurance

401K plan

Parental leave

Job summary

Western Union is seeking a Senior Software Engineer in Austin, TX to advance our platform modernization across NA and LACA. You will design, develop, and enhance applications, internal tools, workflows, and services using AWS microservices and AI-assisted engineering practices.

You will mentor junior engineers, contribute to security and reliability, and collaborate with product, operations, and architecture teams to deliver scalable cloud-native solutions.

Qualifications

• 4+ years of software engineering experience focusing on security, reliability, scalability, observability, and operational excellence.
• 4+ years cloud-native apps and microservices using Java and Spring Boot.
• 3+ years on AWS (Azure or other cloud platforms), including microservices and cloud-native architectures.
• 1+ years of experience working with event-driven architectures.
• 1+ years of experience with cloud databases (PostgreSQL, Aurora, DynamoDB) and distributed caching technologies (Redis, Valkey, ElastiCache).
• Experience contributing to application modernization, cloud migration, or legacy transformation initiatives.
• 1+ years of experience working in Agile software development environments.

Responsibilities

• Contribute to payment platform modernization initiatives across North America (NA), Latin America & Caribbean (LACA) regions.
• Design, develop, test, and support applications, workflow automations, internal tools, APIs, and platform services using AI-assisted engineering practices.
• Develop and modernize services using Java, Spring Boot, APIs, event-driven architectures, and cloud-native design patterns.
• Build and maintain AWS-based microservices and cloud-native applications that meet performance, reliability, and scalability requirements.
• Develop and support cloud-native data solutions using PostgreSQL, Aurora, DynamoDB, and related technologies.
• Implement telemetry, monitoring, and observability capabilities to improve platform health, reliability, and customer experience.
• Review and validate AI-generated code to ensure adherence to security, quality, compliance, and engineering standards.
• Participate in code reviews, technical design discussions, and architecture reviews.
• Support continuous improvement initiatives by contributing reusable components, engineering standards, and best practices.
• Mentor junior engineers and help foster a culture of collaboration, learning, and engineering excellence.

Skills

Java

Spring Boot

Cloud-native architectures

Event-driven architectures

AWS

Distributed caching

Tools

Kafka

CI/CD pipelines

Observability tools

Infrastructure automation

RESTful APIs

Job description

Western Union is seeking a Senior Software Engineer in Austin, TX to advance our platform modernization across NA and LACA. You will design, develop, and enhance applications, internal tools, workflows, and services using AWS microservices and AI-assisted engineering practices.

You will mentor junior engineers, contribute to security and reliability, and collaborate with product, operations, and architecture teams to deliver scalable cloud-native solutions.